Note: Descriptions are shown in the official language in which they were submitted.
CA 02914513 2015-12-04
Description
SINGLE YARN, SINGLE YARN PRODUCT AND PREPARATION METHOD
THEREOF
Field of the Invention
The present invention relates to the technical field of high polymer
materials, in
particular relates to a single yarn, a single yarn product and a preparation
method
thereof.
Background of the Invention
Ultra high molecular weight polyethylene (Ultra High Molecular Weight
Polyethylene, referred to as UHMW-PE) is a thermoplastic engineering plastic
with a
linear structure and excellent comprehensive performances, and one of the
important
applications of the material is to prepare a high-strength fiber on the basis
of the
material.
The ultra high molecular weight polyethylene fiber is a high-performance
fiber, has
the advantages of high strength, wear resistance, impact resistance, corrosion
resistance, UV resistance and the like and can be widely used in multiple
fields, for
example, the ultra high molecular weight polyethylene fiber can be used for
preparing
ropes, hangers, fishing nets, various textiles and the like in the civil
field, can be
applied to the preparation of bulletproof vests, bulletproof helmets and the
like in the
field of individual protection products, and can also be applied to the
preparation of
bulletproof floors, armored protection plates and the like in the field of
national
defense military supplies.
As the ultra high molecular weight polyethylene fiber has a silk-like
structure (the
fiber number of the single yam is about 2.5 deniers), so that in the process
of
preparing the various products based on the ultra high molecular weight
polyethylene
fiber, multiple fibers with the silk-like structures need to be arranged
respectively, the
process is complex, and the cost is high; and furthermore, in the preparation
process
CA 02914513 2015-12-04
of the product, the surfaces of the fibers are liable to the generation of
burrs due to
friction, and the fibers are liable to breaking, distortion, intertwining and
other
phenomena, thereby being not conductive to realizing integral uniform stress
of the
multiple fibers, enabling the strength of the integral strength of the
prepared product
to be often lower than the strength of the multiple ultra high molecular
weight
polyethylene fibers and realizing a relatively low strength utilization ratio.
Summary of the Invention
A brief summary of the present invention is given below to facilitate the
basic
understanding of some aspects of the present invention. It should be
understood that
the summary is not an exhaustive summary of the invention. It is not intended
to
determine key or important parts of the invention or limit the scope of the
invention. It
only aims at presenting some concepts in a simplified form as a prelude to the
more
detailed description which will be discussed later.
The present invention provides a high-strength and low-cost single yarn, a
single yarn
product and a preparation method thereof.
In the first aspect, the present invention provides a preparation method of a
single
yarn, including: converging or converging and twisting an ultra high molecular
weight
polyethylene thin film or strip to obtain the single yarn.
Optionally, the converging of the ultra high molecular weight polyethylene
thin film
or strip includes: converging the ultra high molecular weight polyethylene
thin film or
strip along the straightening direction of a molecular chain thereof.
Optionally, the related parameters of the ultra high molecular weight
polyethylene
thin film at least meet one or more of the following conditions:
the linear density is above 5000 deniers;
the width is above 100mm;
the thickness is below 0.2mm;
the breaking strength is above 10 grams/denier;
the tensile modulus is above 800 grams/denier; and
the elongation at break is below 6%.
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CA 2919513 2017-03-23
=
Optionally, the related parameters of the ultra high molecular weight
polyethylene
strip at least meet one or more of the following conditions:
the linear density is above 100 deniers;
the width is 1-100mm;
the thickness is below 0.2mm;
the breaking strength is above 10 grams/denier;
the tensile modulus is above 800 grams/denier; and
the elongation at break is below 6%.
Optionally, the twisting direction for twisting is left twisting or right
twisting, and/or
the twist for twisting is 1-100/m.
In the second aspect, an embodiment of the present invention provides a single
yarn,
which is prepared by adopting the preparation method of the single yarn.
In the third aspect, an embodiment of the present invention provides a
preparation
method of a single yarn product, which includes at least the following step:
preparing
a body of the single yam product from the single yarns according to the second
aspect.
Optionally, the preparing of the body from the single yarns includes:
unidirectionally
arranging, connecting, converging, twisting, interweaving, bonding,
intertwining,
sewing and/or hot-pressing the multiple single yams into a whole.
Optionally, the preparing of the body from the single yarns includes:
converging,
twisting, interweaving, bonding, intertwining, sewing and/or hot-pressing the
multiple
single yarns into a whole to form a single-strand structure and plying the
multiple
single-strand structures into a whole.
Optionally, the plying of the multiple single-strand structures into a whole
includes:
twisting, interweaving, bonding, intertwining, sewing and/or hot-pressing the
multiple
single-strand structures into a whole.
Optionally, the preparing of the body from the single yarns includes:
crisscross
compounding and laminating multiple single-layer structures formed by
unidirectionally arranging and connecting the multiple single yarns at certain
angles
into a whole.
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prepared by adopting the preparation method of the single yarn product.
The technical solutions provided by the present invention are essentially
different
from traditional technologies using ultra high molecular weight polyethylene
and are
revolutionary innovations against the traditional technologies, namely, the
single
yarns prepared by converging or converging and twisting the ultra high
molecular
weight polyethylene thin films or strips replace traditional ultra high
molecular weight
polyethylene fibers to develop and prepare various products. In addition to
the
advantages of wear resistance, impact resistance, corrosion resistance, UV
resistance
and the like which are similar to those of the ultra high molecular weight
polyethylene
fibers, the single yarn also has the unique advantages of good structural
integrity, high
strength, high strength utilization ratio, high production efficiency, low
processing
cost, light weight, small linear density and the like, and therefore the
single yarn can
replace traditional ultra high molecular weight polyethylene fibers in the
preparation
of various products and is widely used in various fields, such as civil use,
individual
protection, national defense military supplies, civil engineering, industrial
construction, offshore operations, fishing, ship manufacturing, sports goods
and the
like.
These and other advantages of the present invention will be evident through
the
following detailed description of optional embodiments of the invention in
conjunction with the accompanying drawings.
Brief Description of the Drawings
The present invention can be better understood through the following
description in
conjunction with the accompanying drawings, wherein the same or similar
reference
symbols are used in all the drawings to represent the same or similar parts.
The
accompanying drawings in conjunction with the detailed description are
included in
the description and form one part of the description, and are used for further
illustrating the optional embodiments of the invention and explaining the
principle
and the advantages of the present invention. Wherein,
Fig. la is a schematic diagram of an optional structure of an ultra high
molecular
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weight polyethylene thin film provided by an embodiment of the present
invention;
Fig. lb is a schematic diagram of an optional structure of an ultra high
molecular
weight polyethylene strip provided by an embodiment of the present invention;
Fig. 2 is a schematic diagram of an optional structure of a single yarn after
converging
the thin film or strip provided by an embodiment of the present invention;
Fig. 3 is a schematic diagram of an optional structure of a woven fabric or
strip
provided by an embodiment of the present invention;
Fig. 4 is a schematic diagram of an optional structure of a knitted fabric or
strip
provided by an embodiment of the present invention;
Fig. 5 is a schematic diagram of an optional structure of a net with a mesh
structure
provided by an embodiment of the present invention;
Fig. 6 is a schematic diagram of an optional structure of a twisted rope
provided by an
embodiment of the present invention;
Fig. 7 is a schematic diagram of an optional structure of a woven rope
provided by an
embodiment of the present invention;
Fig. 8 is a schematic diagram of an optional structure of a unidirectional
fabric
prepared on the basis of the single yam provided by an embodiment of the
present
invention;
Fig. 9 is a schematic diagram of an optional structure of a non-woven fabric
with an
intersection angle of 90 degrees provided by an embodiment of the present
invention;
and
Fig. 10 is a schematic diagram of an optional structure of a non-woven fabric
with a
gradually increased intersection angle provided by an embodiment of the
present
invention.
Those skilled in the art should understand that elements in the accompanying
drawings are only illustrated for simplicity and clarity, and are not
necessarily drawn
to scale. For example, the sizes of some elements in the accompanying drawings
may
be exaggerated relative to other elements so as to assist in the improvement
of the
understanding of the embodiments of the present invention.
CA 02914513 2015-12-04
Detailed Description of the Embodiments
The exemplary embodiments of the present invention will be described in detail
below in conjunction with the accompanying drawings. For clarity and brevity,
not all
the characteristics of the actual implementation ways are described in the
description.
However, it should be understood that, in the process of developing any of
these
actual embodiments, many decisions which are specific to the implementation
ways
must be made to facilitate the implementation of specific targets of
development staff,
such as those limiting conditions which are related to a system and business,
and these
limiting conditions can change along with different implementation ways. In
addition,
it should also be understood that, although the development work may be very
complex and time-consuming, the development work is just a routine task for
those
skilled in the art and benefiting from the disclosure of the present
invention.
Herein, it still needs to be noted that, in order to prevent the unnecessary
details from
obscuring the present invention, only the device structure and/or the
treatment steps
which are closely related to the solutions of the present invention are
described in the
accompanying drawings and the description, and the representations and the
descriptions of the parts and the treatments which are not closely related to
the
invention and known to those of ordinary skill in the art are omitted.
Ultra high molecular weight polyethylene is polyethylene with a molecular
weight of
above 1 million. The traditional technologies using the ultra high molecular
weight
polyethylene take ultra high molecular weight polyethylene fibers as the basis
to
prepare various products. The technical solutions provided by the various
embodiments of the present invention are essentially different from the
traditional
technologies using ultra high molecular weight polyethylene and are
revolutionary
innovations against the traditional technologies, namely, an ultra high
molecular
weight polyethylene thin film or strip is used for replacing traditional ultra
high
molecular weight polyethylene fibers to develop and prepare application
products, and
the core concept mainly includes the following contents:
(1) The ultra high molecular weight polyethylene thin film or strip is used
for
replacing traditional ultra high molecular weight polyethylene fibers to
prepare a
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CA 02914513 2015-12-04
single yarn, namely, the single yarn is prepared by converging or converging
and
twisting the ultra high molecular weight polyethylene thin film or strip.
(2) The single yams obtained by converging or converging and twisting the
ultra high
molecular weight polyethylene thin films or strips replace the traditional
ultra high
molecular weight fibers in the development of various products (hereinafter
referred
to as single yam products).
Wherein, as shown in Fig. la, the ultra high molecular weight polyethylene
thin film
101 is a thin slice which is prepared from ultra high molecular weight
polyethylene
and has a certain width and thickness, wherein the width is much greater than
the
thickness. As shown in Fig. lb, the ultra high molecular weight polyethylene
strip 102
is a strip-like thin slice which can be prepared independently or be formed by
performing slitting process step before and after stretching the thin film,
wherein the
width of the strip is less than the width of the thin film, and the thickness
is equivalent
to that of the thin film or greater than the thickness of the thin film.
The ultra high molecular weight polyethylene thin film or strip provided by
the
present invention is different from the ultra high molecular weight
polyethylene fibers
and also different from a plane formed by bonding the multiple ultra high
molecular
weight polyethylene fibers, and the significant difference lies in that the
ultra high
molecular weight polyethylene thin film or strip provided by the present
invention has
a certain width and thickness and is an integral structure without integration
points or
trim lines.
The single yam provided by each of the various embodiments of the invention is
prepared on the basis of the ultra high molecular weight polyethylene thin
film or
strip. In the preparation process of the single yam, the ultra high molecular
weight
polyethylene thin film or strip is taken as a whole for treatment, thereby
having good
structural integrity, being simple in preparation process, eliminating a
complex
process for respectively arranging multiple fiber silks, obviously reducing
the
probability of generating burrs on the surface of the thin film or strip and
also
obviously reducing the probability of producing breaking, distortion,
intertwining and
other phenomena in the thin film or strip. When the single yam formed by
converging
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CA 02914513 2015-12-04
the ultra high molecular weight polyethylene thin film or strip is used for
bearing a
load, the ultra high molecular weight polyethylene thin film or strip is
stressed as a
whole, so that the strength of the single yarn adopting the ultra high
molecular weight
polyethylene thin film or strip is higher than that of a product prepared by
adopting
the ultra high molecular weight polyethylene fiber with the same denier
number, and
the single yarn has the advantages of good structural integrity, high
strength, high
strength utilization ratio, high production efficiency, low processing cost,
light weight,
small linear density, good flexibility and the like.
The single yarn provided by each of the various embodiments of the present
invention
can completely replace traditional ultra high molecular weight polyethylene
fibers to
prepare the products to be widely applied in various fields. Specifically, in
various
embodiments of the present invention, the single yarn can substitute the ultra
high
molecular weight polyethylene fibers to prepare various single yarn products.
In the
preparation process of the single yarn product, the single yarn is taken as
the basis for
processing treatment. Compared with the similar products obtained by
processing
treatment on the basis of the ultra high molecular weight polyethylene fibers,
the
single yarn product has the advantages of good structural integrity, simple
preparation
process and high production efficiency. When the single yarn product bears the
load,
each single yarn is stressed as a whole, so that the strength of the single
yarn product
prepared by adopting the single yarns is higher than that of the similar
product
prepared on the basis of the ultra high molecular weight polyethylene fibers
with the
same denier number, the strength utilization ratio is effectively improved,
and the
single yarn product simultaneously has the advantages of good structural
integrity,
light weight, small linear density, environmental friendliness and the like.
Embodiment of single yarn and preparation method thereof
A single yarn 201 provided by an embodiment of the present invention is formed
by
converging an ultra high molecular weight polyethylene thin film or strip. As
shown
in Fig. 2, the ultra high molecular weight polyethylene thin film or strip can
be
converged to prepare the single yarn. For example, an optional process flow is
as
follows: placing the ultra high molecular weight polyethylene thin film or
strip on a
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CA 02914513 2015-12-04
bobbin creel, releasing and enabling the ultra high molecular weight
polyethylene thin
film or strip to sequentially pass through a thread guide mechanism and a
bunching
mechanism and then be wound on a tube core. The prepared single yam has the
advantages of good structural integrity, high strength, high strength
utilization ratio,
high production efficiency, low processing cost, light weight, good
flexibility and the
like. In addition, as the single yam is formed by converging the ultra high
molecular
weight polyethylene thin film or strip, compared with the similar products
formed by
bonding the ultra high molecular weight polyethylene fibers, the single yam
further
has the advantages of no glue, environmental friendliness and the like.
Optionally, the single yam can also be prepared by converging and twisting the
ultra
high molecular weight polyethylene thin film or strip, namely, the ultra high
molecular weight polyethylene thin film or strip is firstly converged and then
twisted
to prepare the single yarn. The twisting direction and the twist for twisting
can be
determined according to actual needs and are not limited in the various
embodiments
of the present invention, for example, the twisting direction for twisting of
the ultra
high molecular weight polyethylene thin film or strip can be left twisting or
right
twisting, and the twist is 1-100/m. The single yarn prepared according to the
solution
further has the advantages of good compactness and effect of being less liable
to
looseness, is convenient to process the single yam product and can reduce the
processing cost and improve the production efficiency.
Optionally, in the preparation process of the single yarn, the ultra high
molecular
weight polyethylene thin film or strip can be converged along the
straightening
direction of a molecular chain thereof. As the ultra high molecular weight
polyethylene has a linear structure, the strength of the ultra high molecular
weight
polyethylene thin film or strip along the straightening direction of the
molecular chain
thereof is the maximum. Thus, when the single yam is prepared by converging
along
the straightening direction of the molecular chain thereof, the strength of
the single
yarn can be improved, the loss which may be caused to the strength performance
of
the thin film for strip by converging treatment can also be reduced, and the
strength
utilization rate is high.
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Optionally, the related parameters of the ultra high molecular weight
polyethylene thin
film at least meet one and more of the following conditions: the linear
density is above
5000 deniers; the width is above 100mm; the thickness is below 0.2mm; the
breaking
strength is above 10 grams/denier; the tensile modulus is above 800
grams/denier; and
the elongation at break is below 6%.
By preparing the single yarn on the basis of the ultra high molecular weight
polyethylene thin film with one or more above-mentioned properties, the single
yarn
has higher integral strength and can better meet the preparation requirements
of
high-strength load, bulletproof and other products.
Optionally, the related parameters of the ultra high molecular weight
polyethylene
thin film at least meet one or more of the following conditions: the linear
density is
above 100deniers; the width is 1-100mm; the thickness is below 0.2mm; the
breaking
strength is above lOgrams/denier; the tensile modulus is above
800grams/denier; and the
elongation at break is below 6%. By preparing the single yarn on the basis of
the ultra
high molecular weight polyethylene strip with one or more above-mentioned
properties, the single yarn has higher integral strength and can better meet
the
preparation requirements of high-strength load, bulletproof and other
products.
In addition to the advantages of wear resistance, impact resistance, corrosion
resistance. UV resistance and the like which are similar to those of the ultra
high
molecular weight polyethylene fibers, the single yarn formed by converging or
converging and twisting the ultra high molecular weight polyethylene thin film
or
strip provided by the various solutions in this embodiment also has the unique
advantages of good structural integrity, high strength, high strength
utilization ratio,
high production efficiency, low processing cost, light weight, small linear
density and
the like, and therefore the single yarn can replace traditional ultra high
molecular
weight polyethylene fibers in the preparation of the various products and is
widely
used in various fields, such as civil use, individual protection, national
defense
military supplies, civil engineering, industrial construction, offshore
operations,
fishing, ship manufacturing, sports goods and the like.
Embodiment of single yarn product and preparation method thereof
CA 02914513 2015-12-04
The single yarn product provided by the embodiment includes at least a body
prepared
from the above-mentioned single yarn. Namely, the single yarn product can be
the
body prepared from the single yarns, or the single yarn product includes not
only the
body prepared from the single yarns, but also a reinforcer, a flame-retardant
layer and
other accessories, and the composition is not limited in the invention. After
the body
is prepared from the single yarns, if the preparation of the single yarn
product includes
not only the body, but also the reinforcer, a flame-retardant sleeve and other
accessories, the processing of other accessories can be implemented by
adopting the
prior art, which will not be described in detail herein.
The single yarn product provided by the embodiment of the present invention
uses the
single yarns formed by converging or converging and twisting the ultra high
molecular weight polyethylene thin films or strips to replace traditional
ultra high
molecular weight polyethylene fibers as raw materials and is prepared by
adopting
one or more processes of unidirectional arranging, converging, twisting,
interweaving,
bonding, intertwining, hot-pressing and the like.
(1) Optionally, the multiple single yarns are unidirectionally arranged,
connected,
converged, twisted, interwoven, bonded, intertwined and/or hot-pressed into a
whole
to prepare the body of the single yam product.
For example, the multiple single yarns formed by converging the ultra high
molecular
weight polyethylene thin films or strips can be twisted to prepare a twisted
rope. The
product form of the twisted rope prepared by the solution is not limited, for
example,
the twisted rope can be used as a brake rope, a guide rope of a helicopter, a
suspension
rope on a deceleration parachute or an aircraft, an electric traction rope and
the like,
and the twisted rope can better meet the special requirements of these
products on
strength, weight and other performances of the ropes.
For example, the single yarns prepared by converging and twisting the ultra
high
molecular weight polyethylene thin films or strips can be processed into a
woven
fabric or strip 301 (as shown in Fig. 3), a knitted fabric or strip 401 (as
shown in Fig.
4), a plaited fabric or strip, a net 501 with a mesh structure (as shown in
Fig. 5) and
other single yarn products by adopting weaving, knitting, plaiting and other
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interweaving processes. The product of the single yarn product prepared by the
solution can include, but is not limited to, an airfreight net, a deep water
net cage, an
ocean-going drag net, a high-strength structure, a high-strength suitcase, a
high
pressure-resistant storage tank, a bulletproof vest, a bulletproof plate, a
geogrid, a
bulletproof and explosion-proof suitcase, an armored plate, a protection door,
a
bulletproof seat and the like, and the single yarn product can better meet the
special
requirements of these products on strength, weight and other performances of
the
products.
For example, the single yarns formed by converging and twisting the ultra high
molecular weight polyethylene thin films or strips can be unidirectionally
interwoven
and sewn side by side to form the shape of a flat strip. The product of the
single yarn
product prepared by the solution can include, but is not limited to, a
hoisting strip and
the like, and the single yarn product can better meet the special requirements
of these
products on strength, weight and other performances of the products.
(2) Optionally, the multiple single yarns can be converged, twisted,
interwoven,
bonded, intertwined and/or hot-pressed into a whole to form a single-strand
structure,
and the multiple single-strand structures were plied into a whole. The plying
implementation ways can include, but are not limited to twisting,
interweaving,
bonding, intertwining, sewing and/or hot-pressing to form a whole.
For example, the multiple single yarns are converged and then twisted to
prepare a
single-strand structure, and the multiple single-strand structures were
twisted into a
whole to prepare a twisted rope 601 (as shown in Fig. 6). The number of
strands of the
twisted rope can be determined according to actual needs and is not limited in
the
present invention. The twisted rope with a multi-strand structure has better
strength
than the single-strand twisted rope, and can be, but is not limited to, a
brake rope, a
guide rope of a helicopter, a suspension rope on a deceleration parachute or
an
aircraft, an electric traction rope and the like, and the twisted rope can
better meet the
special requirements of these products on strength, weight and other
performances of
the ropes.
For example, the multiple single yarns can be interwoven into a whole by
adopting a
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weaving process to prepare a woven rope 701 (as shown in Fig. 7). The product
form
of the single yarn product prepared by the solution can include, but is not
limited to, a
guide rope of a helicopter, a suspension rope on a deceleration parachute or
an
aircraft, an electric traction rope; a ship mooring rope, a cable rope, an
anchoring
rope, a tank drag rope and fixed anchoring ropes for supertankers, ocean
engineering
and lighthouses.
Example 3: the multiple single yarns can be unidirectionally arranged and
connected
into a whole to prepare a single yarn product with a single-layer structure.
For example, the multiple single yarns can be arranged in parallel along the
length
direction of the single yarns and connected into a whole through binding
connection,
bonding or hot-pressing connection and other non-interweaving ways to prepare
a
unidirectional fabric 801 (as shown in Fig. 8). The unidirectional fabric
prepared by
the solution can be used for, but is not limited to, the preparation of
strengthening
structures, high-strength suitcases, bulletproof plates, impact-resistant
plates,
bulletproof helmets, bulletproof and explosion-proof suitcases and other
products, and
can better meet the special requirements of these products on strength,
weight,
bullet-proofness and other performances of fabric.
Example 4: single-layer structures obtained by unidirectionally arranging and
connecting the multiple single yarns are crisscross compounded and laminated
into a
whole at certain angles to prepare a single yarn product with a multi-layer
structure.
Wherein, the intersection angles of any two adjacent single-layer structures
can be the
same, the intersection angles can be any angle in the range of 0-90 degrees,
for
example, the intersection angle is 45 degrees; or the intersection angle is 90
degrees, if
the multiple layers of the unidirectional fabrics 801 are sequentially
crisscross
laminated by 0/90 degrees, and the various layers of the unidirectional
fabrics are
bonded or hot-pressed for connection, thereby preparing the single-yarn
product with
the multi-layer structure, such as a non-woven fabric 901 (as shown in Fig.
9). The
single yarn production prepared by the solution has high strength, when the
single
yarn product is subject to shooting of a bullet and other strong impact force,
a
force-bearing point can be diffused to a force-bearing surface, energy is
rapidly
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diffused, and the bulletproof performance is good. Based on the single yarn
product,
the single yarn products with other product forms can be further prepared,
such as
non-woven fabric, strengthening structures, high-strength suitcases,
bulletproof plates,
impact-resistant plates, bulletproof helmets, bulletproof and explosion-proof
suitcases
and other products, and the single yarn products can better meet the special
requirements of these products on strength, weight, bullet-proofness and other
performances.
Or, the intersection angles of at least two single-layer structures in the
various
single-layer structures are different from the intersection angles of other
single-layer
structures. For example, if the intersection angles of the two adjacent single-
layer
structures from the first single-layer structure are gradually increased, the
single-layer
structures with different intersection angles (unidirectional fabric 801) are
laminated into
a whole, thereby preparing the single yarn product with the multi-layer
structure 1001
(as shown in Fig. 10). The single yarn products with other product forms can
be
further prepared on the basis of the single yarn product, such as
strengthening
structures, high-strength suitcases, bulletproof plates, impact-resistant
plates,
bulletproof helmets, bulletproof and explosion-proof suitcases and other
products, and
the single yam products can better meet the special requirements of these
products on
strength, weight, bullet-proofness and other performances.
According to the various solutions in the embodiment, the single yarns
obtained by
converging or converging and twisting the ultra high molecular weight
polyethylene
thin films or strips replace traditional ultra high molecular weight fibers as
the raw
materials to prepare various single yarn products. In the preparation process
of the
single yarn product, the single yam is taken as the basis for processing
treatment.
Compared with the similar products obtained by processing treatment on the
basis of
the ultra high molecular weight polyethylene fibers, the single yarn product
has the
advantages of good structural integrity, simple preparation process and high
production efficiency. When the single yarn product bears the load, each
single yarn is
stressed as a whole, so that the strength of the single yarn product prepared
by
adopting the single yarns is higher than that of the similar product prepared
on the
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basis of the ultra high molecular weight polyethylene fibers with the same
denier
number, the strength utilization ratio is effectively improved, and the
prepared single
yarn product further has the unique advantages of good structural integrity,
high
strength, high strength utilization ratio, high production efficiency, low
processing
cost, light weight, small linear density and the like, and can be widely used
in various
fields, such as civil use, individual protection, national defense military
supplies, civil
engineering, industrial construction, offshore operations, fishing, ship
manufacturing,
sports goods and the like.
The product forms of the single yarn products are rich and diverse and can not
be
listed exhaustively. The exemplary embodiments in the description of the
present
invention are only used for description and should not be construed as
essentially
limiting the technical solutions of the present invention.
In the various embodiments of the present invention, the serial numbers and/or
the
sequences of the embodiments are only used for description and do not
represent the
superiority and inferiority of the embodiments. The description of the
embodiments
places an emphasis on different parts, and the part which is not described in
detail in a
certain embodiment can refer to the related description in other embodiments.
In the embodiments of the device, the method and the like of the present
invention, it
is obvious that all the parts or all the steps can be decomposed, combined
and/or
re-combined after decomposition. These decompositions and/or re-combinations
should be considered as equivalent solutions of the present invention. At the
same
time, in the above description of the specific embodiments of the present
invention,
the characteristics described and/or illustrated against one implementation
way can be
used in one or more other implementation ways in the same or similar manner,
and
can be combined with the characteristics in other implementation ways or can
be used
for substituting the characteristics in other implementation ways.
It should be emphasized that, the term 'including/containing' refers to the
existence of
the characteristics, elements, steps or components when being used herein, but
does
not exclude the existence or addition of one or more other characteristics,
elements,
steps or components.
CA 02914513 2015-12-04
Finally, it should be noted that, although the present invention and the
advantages
have been described in detail, it should be understood that various
modifications,
substitutions and changes can be made without exceeding the spirit and the
scope of
the present invention limited by the accompanying claims. Furthermore, the
scope of
the present invention is not limited to the specific embodiments of processes,
equipment, means, methods and steps described in the description. According to
the
disclosure of the present invention, those of ordinary skill in the art can
easily
understand that the processes, the equipment, the means, the methods or the
steps
which are existing, will be developed in the future and execute the basically
same
functions with the corresponding embodiments or obtain the basically same
results
can be used. Thus, the accompanying claims aim at including such processes,
equipment, means, methods or steps within the scope.
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