PILE FABRIC

TISSU A POILS

English Abstract

The invention relates to a pile fabric comprising a textile support structure
(1) and a trimming consisting of pile threads (3) which are anchored in the
support structure (1). The aim of the invention is to produce a pile fabric of
said type with good properties which are evenly distributed over the entire
surface thereof i.e. to produce a fabric which retains a good abrasive and
absorbent effect and retains its volume over the entire surface. An additional
aim is to improve the mechanical anchoring of the rigid pile threads (3) in
the support structure (1). To this end, the inventive pile threads (3) consist
wholly or partially of a multi-filament yarn which contains both fine
filaments (4) and coarse filaments (5). The coarse filament count is more than
25 times greater than the fine filament (4) count.

French Abstract

Tissu à poils constitué d'une structure de support (1) textile et d'une garniture formée par des fils de poil (3) ancrés dans la structure de support (1). Le tissu à poils selon la présente invention possède des propriétés qui sont également réparties sur toute sa surface, c'est-à-dire que ledit tissu conserve partout un bon effet abrasif et absorbant, ainsi que son gonflant. En outre, l'ancrage mécanique des fils de poil (3) rigides dans la structure de support (1) est amélioré. A cet effet, les fils de poil (3) sont tous ou en partie constitués par un fil à filaments multiples qui contient d'une part des filaments fins (4) et d'autre part des filaments grossiers (5) dont le titre est plus de 25 fois plus élevé que le titre des filaments fins (4).

Claims

Claims
1. A pile fabric comprising a textile support structure
and a trimming comprised of pile threads anchored in the
textile support structure, characterized in that the pile
threads (3) all or partly consist of a multi-filament yarn
containing fine filaments (4), on the one hand, and coarse
filaments (5) on the other, with the titer of the coarse
filaments being more than 25 times greater than the titer of
the fine filaments (4).
2. The pile fabric according to claim 1, characterized
in that the fine filaments (4) have a titer of from 0.2 to 5
dtex..
3. The pile fabric according to claim 2, characterized
in that the fine filaments (4) are made of polyester and the
coarse filaments (5) of polyamide.
4. The pile fabric according to claim 2 or 3,
characterized in that the filaments (4, 5) are equally long.
5. The pile fabric according to any one of claims 2 to
4, characterized by the use as a coating fabric for paint
roller applicators.
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6. The pile fabric according to claim 1, characterized
in that the fine filaments (4) have a titer of from 0.2 to 5
dtex and the coarse filaments (5) a titer of more than 18
dtex.
7. The pile fabric according to claim 5, characterized
in that the fine filaments (4) are crimped to a greater
extent that the coarse filaments (5).
8. The pile fabric according to claim 6 or 7,
characterized by the use as a cleaning cloth.
9. The pile fabric according to claim 1, characterized
in that the fine filaments (4) have a titer of from 0.05 to
dtex and the coarse filaments (5) a titer of from 1.25
to 170 dtex.
10. The pile fabric according to claim 9, characterized
in that the fine filaments (4) are made of polypropylene
(PP) and/or viscose and/or polyacrylonitrile (PAN), and the
coarse filaments (5) of polyester (PES) and/or polyvinyl
chloride (PVC) and/or polycarbonate (PC).
11. The pile fabric according to claim 9 or 10,
characterized in that the coarse filaments (5) and the fine
filaments (4) are uniformly crimped to the same extent.
11

12. The pile fabric according to claim 9 or 10,
characterized in that the coarse filaments (5) are crimped
to a lesser extent than the fine filaments (4).
13. The pile fabric according to claim 9 or 10,
characterized in that the coarse filaments (5) are crimped
to a greater extent than the fine filaments (4).
14. The pile fabric according to any one of claims 10,
11 and 12, characterized by the use as a massaging mat or a
massaging glove.
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Description

CA 02367511 2001-09-17
PILE FABRIC
The invention relates to a pile fabric comprising a
textile support structure with a trimming consisting of pile
threads anchored in the support structure.
According to the prior art (see EP 0 609 678 A1), it is
known to use in connection with such a pile fabric employed
as a textile material for cleaning purposes pile threads
a
with a varying titer, whereby selected surface areas have
pile threads with a particularly high titer, and other
surface areas p~.le threads with a low titer. The pile
threads with a high titer are in this connection expected to
hare a highly abrasive cleaning effect, and the pile threads
with a low titer good absorptive power for absorbing the
cleaning liquid.
Problems arise in connection with the known pile fabric
to the extent that viewed across the surface area, the
cleaning effect is not the same everywhere, and that
esFecially the surface areas with pile threads with a low
titer lose their volume quickly because the pile threads
with the low titer bend over and come the lie flat. Further
problems result from the fact that the stiff pile threads
with the high titer can only poorly be anchored in the
support structure and have to be glued to or fused with the
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CA 02367511 2001-09-17
latter, so that they will not become detached from the
textile support structure prematurely.
Therefore, the problem of the invention is to provide a
pile fabric of the type specified above that has good
properties uniformly across the entire surface area, i.e.
good abrasive and absorbent effects and retains its full
volume everywhere. Furthermore, the goal is to improve the
mechanical anchoring of the stiff pile threads in the
textile support structure.
For solving said problem, the invention proposes based on
a pile fabric of the type specified above that the pile
threads all or partially consist of a mufti-filament yarn
that contains pile filaments on the one hand, and coarse
filaments on the other, with the titer of the coarse
filaments amounting to 25 times the titer of the fine
filaments.
The pile fabric according to the invention employs for
the pile threads for the first time a multi~filament yarn
comprised of coarse and tine filaments with titers that are
very widely apart, whereby the coarse filaments provide the
pile thread with high stiffness, high resetting capability
and a high scratching effect, and the fine filaments provide
such a pile thread with high absorptive power. The mixture
between the coarse and the fine filaments is particularly
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CA 02367511 2001-09-17
intimate in this connection, so that the pile fabric
exhibits uniform properties over it entire surface area.
Owing to the fact that the coarse and the fine filaments are
twisted with each other in the pile threads, particularly
durable anchoring of the pile threads in the textile support
structure is obtained in spite of the high stiffness of the
individual pile threads, whereby the textile support
structure may be present in the form of fabrics or knitted
textile materials. Especially the fine filaments, which are
closely joined with the coarse filaments, effect
particularly solid anchoring and clamping in the textile
support structure.
According to a first embodiment of the pile fabric as
defzned by the invention, provision is made that the fine
filaments have a titer of from 0.2 to 5 dtex. Filaments with
such a degree of fineness are particularly absorbent and
capable of storing relatively much liquid. with such fine
filaments it is possible to aohieve a number of up to
100,000 individual filaments per square centimeter with a
capillary effect that is correspondingly high. Each pile
thrAad retains nonetheless its stiffness and remains
elastically resettable because of the filaments with a high
titer contained therein.
The fine filaments are usefully made of polyester and the
coarse elements of polyamide. Pile threads comprised of such
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CA 02367511 2001-09-17
a material pairing are stiff, on the one hand, and absorbent
on the other, and, furthermore, are capable of readily
giving off again any absorbed liquid.
The filaments in the pile threads all have usefully the
same length. The goal achieved in this way is that the pile
fabric is supportive and at the same time absorptive on its
surface, i.e, in the area of the distal ends of the
individual pile threads. On account of its properties, such
a pile fabric is particularly suited as a cover pile fabric
for a paint roller applicator. Because of the high stiffness
of the coarse filaments, such a cover pile fabric is not
pressed flatly onto the surface to be painted when the paint
roller applicator is used. On the other hand, due to the
capillary effect, the fine filaments transport the paint to
be applied into the region of the tips of the individual
pile threads, which leads to a particular uniform
application of the paint.
According to another exemplified embodiment of the pile
fabric as defined by the invention, provision is made that
the fine filaments have a titer of from 0.2 to 5 dtex and
the coarse filaments a titer of more than 18 dtex. This
supplies a pile fabric that has a particularly strong
abrasive effect, which means such a pile fabric is
especially suited for use as a textile material for cleaning
purposes.
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CA 02367511 2001-09-17
For increasing the abrasive effect further, the fine
filaments may be crimped to a higher degree than the coarse
filaments, if need be. This causes the coarse filaments to
extend beyond the fine filaments, so that the effect of a
brush is obtained on the surface of the pile fabric.
According to a third embodiment, provision is made that
the fine filaments have a titer of from 0.05 to 6.7 dtex and
the coarse filaments a titer of from 1.25 to 170 dtex. The
fine filaments are in this connection made of polypropylene
(PP) and/or viscose and/or polyacrylo-nitrile, and the
coarse filaments consist of polyester (PES) and/or polyvinyl
chloride (PVC) and/or polycarbonate (PC). Such a pile fabric
can be adapted to all kinds of different application
purposes.
Such a pile fabric is particularly suited as a massaging
mat or a massaging glove. In this connection, the coarse and
the fine filaments either may have different widths or they
may be crimped to the same extent depending on the desired
massaging effect. If they are crimped to the same extent, a
pile fabric is obtained that is uniformly soft on the
surface and has a highly elastic volume.
On the other hand, if the coarse filaments are crimped to
a lesser extent than the tine filaments, a relatively

CA 02367511 2001-09-17
aggressive surface is obtained that causes irritation of the
skin, for example when it is used for massaging purposes.
But if the coarse filaments, on the other hand, are crimped
to a greater extent than the fine filaments, a particularly
soft and carefully working surface is obtained which,
however, is nonetheless highly supportive and elastic.
Exemplified embodiments of the invention are explained in
greater detail in the following with the help of the
drawing, in which:
FIG. 1 shows a schematic sectional view of a first
embodiment of a pile fabric as defined by the invention
produced by the double-pile process.
FIG. 2 shows a schematic sectional view of a second
embodiment of a pile fabric as defined by the invention
produced by the double-pile process.
FTG. 3 shows a schematic section view of a third
embodiment of a pile fabric as defined by the invention
produced by the double-pile process.
In FIG. 1, the textile support structure of the pile
fabric, in the present case a backing fabric, is denoted in
its entirety by the reference numeral 1. Said pile fabric is
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CA 02367511 2001-09-17
comprised of warp threads not shown, and the wefts 2
extending perpendicular to~the former.
The pole threads 3 are anchored in said textile support
structure 1 and guided around adjacent wefts and cut off at
both ends in such a way that their distal end sections
extend about perpendicular to the main plane of expanse of
the textile support structure 1.
The pile threads 3 of the pile fabric all, or at least
for the major part consist of a multi-filament yarn that
cor_tains the fine filaments 4, on the one hand, and the
coarse filaments 5 on the other, whereby the titer of the
coarse filaments amounts to more than 25 times the titer of
the fine filaments 4.
If the pile fabric is employed as a cover for a paint
roller applicator, the fine filaments 4 have a titer of, for
example from 0.2 to 5 dtex. The titer of the associated
coarse filaments 5 is at least 25 times greater in each
case, Therefore, if the fine filaments have a titer of 0.2
dtex, the coarse filaments have a titer of more than 5 dtex.
on the other hand, if the fine filaments have a titer of 5
dtex, the coarse filaments have a titer of more than 25
dtex.
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CA 02367511 2001-09-17
In the exemplified embodiment according to FIG. 1, the
coarse filaments 5 and the fine filaments 4 are equally
long. The fine filaments 4 are made of polyester in this
connection, and the coarse filaments 5 are produced from
polyamide. Such a material pairing is particularly suited
for paint roller applicators. The coarse filaments 5 support
the paint roller applicator in this connection in the plane ,
of contact over the circumference of the roller against the
surface to be coated with paint. The fine filaments, on the
other hand, owing to their extremely good capillary effect,
transport the paint up into the range of said surface, Such
a paint roller applicator achieves a particularly uniform
application of the paint and exhibits relatively minor
tendency to splashing.
zf the pile fabric is to be employed as a textile
material for cleaning purposes, the fine filaments have a
titer of from 0.2 to 5 dtex and the coarse filaments a titer
in excess of 1B dtex. If, as in the exemplified embodiment
according to FIG. 2, the fine filaments 4 are crimped to a
greater extent than the coarse filaments 5, a particularly
rough and abrasively active surface of the pile fabric is
obtained.
on the other hand, if, as in the exemplified embodiment
according to FIG. 3, the coarse filaments 5 are crimped to a
greater extent than the fine filaments 4, a textile material
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CA 02367511 2001-09-17
with a particularly soft surface is obtained that
nonetheless has a particularly elastic volume.
An adaptation to all kinds of different cases of
application is possible if the fine filaments have a titer
of from 0.05 to 6.7 dtex and the coarse filaments a titer of
from 1.25 to 170 dtex. Especially the materials
polypropylene (PP), viscose or polyacrylonitrile (PAN) are
suitable for the fine filaments. On the other hand, the
,.
ma.~erials polyester {PES) or polyvinyl chloride (PVC) or
polycarbonate (PC) are advantageously employed for the
coarse filaments. The pile fabric can be adapted to all
sorts of different applications by selecting and pairing the
materials as required, for example as a fabric for
particularly soft or particularly aggressive massaging
gloves, or as industrial textiles, for example for cleaning
purposes, or as filter coatings or the like.
9

Representative Drawing