U.S. patent application number 12/280097 was filed with the patent office on 2009-12-24 for terry product.
This patent application is currently assigned to LENZING AKTIENGESELLSCHAFT. Invention is credited to Denitza Ivanoff, Susanne Jary, Gert Kroner, Johann Leitner.
Application Number | 20090317584 12/280097 |
Document ID | / |
Family ID | 38111365 |
Filed Date | 2009-12-24 |
United States Patent
Application |
20090317584 |
Kind Code |
A1 |
Ivanoff; Denitza ; et
al. |
December 24, 2009 |
Terry Product
Abstract
The invention relates to a terry product consisting of a textile
base material and a pile associated with the base material, which
is characterized in that the base material and/or the pile
comprise(s) at least partially a cellulose fiber selected from the
group consisting of viscose fibers, modal fibers, polynosic fibers
and lyocell, which cellulose fiber has a titer of more than 1.7
dtex to 4.5 dtex.
Inventors: |
Ivanoff; Denitza; (Atzbach,
AT) ; Jary; Susanne; (Steinbach, AT) ; Kroner;
Gert; (Lenzing, AT) ; Leitner; Johann; (Haid,
AT) |
Correspondence
Address: |
FITZPATRICK CELLA HARPER & SCINTO
1290 Avenue of the Americas
NEW YORK
NY
10104-3800
US
|
Assignee: |
LENZING AKTIENGESELLSCHAFT
|
Family ID: |
38111365 |
Appl. No.: |
12/280097 |
Filed: |
February 20, 2007 |
PCT Filed: |
February 20, 2007 |
PCT NO: |
PCT/AT2007/000089 |
371 Date: |
May 19, 2009 |
Current U.S.
Class: |
428/95 |
Current CPC
Class: |
D10B 2201/00 20130101;
D04B 1/02 20130101; D04B 21/04 20130101; D04B 1/04 20130101; D10B
2503/06 20130101; Y10T 428/23979 20150401; D03D 15/44 20210101;
Y10T 428/23993 20150401; D03D 27/08 20130101; D10B 2401/024
20130101; D10B 2201/02 20130101; D10B 2201/22 20130101; D10B
2201/24 20130101 |
Class at
Publication: |
428/95 |
International
Class: |
D03D 27/00 20060101
D03D027/00 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 23, 2006 |
AT |
A 303/2006 |
Claims
1. A terry product comprising a textile base material and a pile
associated with the base material, wherein the base material and/or
the pile comprise(s) a cellulose fiber selected from the group
consisting of viscose fibers, modal fibers, polynosic fibers and
lyocell, which cellulose fiber has a titer of more than 1.7 dtex to
4.5 dtex.
2. The terry product according to claim 1, wherein the cellulose
fiber has a titer of from 2 dtex to 4.5 dtex, preferably from 2.2
dtex to 3.3 dtex, most preferably from 2.5 dtex to 2.8 dtex, in
particular from 2.5 dtex to 2.6 dtex.
3. The terry product according to claim 1 or 2, wherein the
cellulose fiber is a cellulose staple fiber having a cutting length
of from 30 mm to 60 mm, preferably from 38 mm to 51 mm.
4. The terry product according to any of the preceding claims,
wherein the cellulose fiber has a multilobal cross-section,
particularly preferably a trilobal cross-section.
5. The terry product according to any of the preceding claims,
wherein the cellulose fiber is present in the form of a yarn or a
twisted yarn produced therefrom.
6. The terry product according to claim 5, wherein the yarn is
selected from the group consisting of ring spun yarns, siro yarns,
core-spun yarns, compact yarns, OE-yarns, air-jet yarns, chenille
yarns, looped yarns and zero-twist yarns.
7. The terry product according to any of the preceding claims,
wherein the cellulose fiber is present in a mixture with a fiber
material selected from the group consisting of cotton, polyester,
wool, polytetrafluoroethylene, polypropylene, polyamide, polyacryl,
polyvinyl alcohol, linen, silk, viscose, lyocell, polynosic and
modal.
8. The terry product according to any of the preceding claims,
wherein the textile base material and/or the pile consist(s)
essentially entirely of the cellulose fiber or the mixture
comprising the cellulose fiber, respectively.
9. The terry product according to any of the preceding claims,
wherein the proportion of the cellulose fiber in the base material
and/or the pile ranges from 1% to 100%, preferably from 10% to
100%, particularly preferably from 30% to 100%.
10. The terry product according to any of the preceding claims,
wherein the pile warp consists of a thread of 100% modal fibers and
a thread of 100% cotton or polyester, wool, polypropylene,
polyamide, polyacryl, polyvinyl alcohol, linen, silk, viscose,
polynosic or lyocell, respectively.
11. The terry product according to any of the preceding claims,
wherein the pile consists of yarn loops or shorn yarn loops,
respectively.
12. The terry product according to any of the preceding claims,
wherein the base material is selected from the group consisting of
woven fabrics, warp-knitted fabrics, knitted fabrics and
stitch-knitted fabrics.
13. The terry product according to any of the preceding claims in
the form of or as a component, respectively, of an article selected
from the group consisting of towels, beach towels, bath towels,
sauna towels, bath robes, washcloths, bath carpets, tea towels,
bedclothes, e.g. bed linens, mattress and blanket covers and
mattress supports, baby clothes, sportswear, socks, lining
materials and diapers.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a terry product which
consists, in a manner known per se, of a textile base material and
a pile associated with the base material.
[0003] 2. Related Art
[0004] Terry products are textile articles with a particular
absorbency and a pleasant feel, which are used, in particular, in
the fields of home textiles and sports articles. The pile (in
particular in the form of yarn loops) which is associated with a
textile base material, e.g. a fabric, is characteristic of terry
products.
[0005] For the purposes of the present invention, the term "terry
product" covers especially but not exclusively products such as
terry cloths, velour terry products, milled terry products and
twisted terry products.
[0006] Terry products, e.g. towels, have to meet specific demands
especially in terms of their softness, their absorbency, their
bulkiness und their bulk stability (during storage, a stack of
towels must not sink down under its own weight).
[0007] Presently, commercially available terry products essentially
consist of cotton. Towels made of cotton exhibit the required
bulkiness, bulk stability and absorbency.
[0008] However, in order to achieve the required softness of the
product, cotton products must be furnished with a plasticizer. For
home washing, the use of fabric softeners is necessary. Both
plasticizers and fabric softeners are suspected to be allergenic.
Moreover, plasticizers substantially reduce the absorbency and
absorption rate of products furnished therewith.
[0009] Without the use of plasticizers and fabric softeners, terry
products made of conventional modal fibers are soft and also
absorbent but exhibit a lower bulkiness and a lower bulk stability
than products made of 100% cotton.
[0010] Terry products comprising a mixture of cotton and
conventional modal fibers are soft, absorbent and have sufficient
bulkiness but do not exhibit sufficient bulk stability.
[0011] Terry products made of synthetic fibers (e.g.
micropolyester) are soft but have to be furnished with hydrophilic
chemicals in order to attain sufficient absorbency.
SUMMARY OF THE INVENTION
[0012] It is the object of the present invention to provide terry
products which meet the demands made on such textile articles in an
excellent manner without exhibiting the above-mentioned
disadvantages of prior art products.
[0013] Said object is achieved with a terry product which is
characterized in that the base material and/or the pile comprise(s)
at least partially a cellulose fiber selected from the group
consisting of viscose fibers, modal fibers, polynosic fibers and
lyocell, which cellulose fiber has a titer of more than 1.7 dtex to
4.5 dtex.
[0014] Surprisingly, it has been found that the use of "man-made"
cellulose fibers, i.e., viscose fibers, modal fibers, polynosic
fibers and lyocell fibers, in a specific titer range of from more
than 1.7 dtex to 4.5 dtex in a terry product causes the products
according to the invention to exhibit both excellent bulkiness and
excellent bulk stability.
[0015] Absorbency is improved in comparison to existing products
comprising, for example, modal fibers having a lower titer or
mixtures, respectively, of modal fibers with a lower titer and
cotton. In a preferred embodiment, fibers with a modified
cross-section, in particular fibers with a multilobal
cross-section, are used, since the absorption rate and absorbency
are once more improved as a result of the enlarged fiber surface. A
trilobal cross-section is particularly preferred. "Man-made"
cellulose fibers having a multilobal cross-section are described,
for example, in EP 0 301 874 A1 as well as in WO 2006/060835.
[0016] Preferably, the titer of the cellulose fiber used according
to the invention ranges from 2 dtex to 4.5 dtex, particularly
preferably from 2.2 dtex to 3.3 dtex, most preferably from 2.5 dtex
to 2.8 dtex, in particular from 2,5 dtex to 2.6 dtex.
[0017] The use of a modal fiber in the above-mentioned titer range
is particularly preferred.
[0018] The name "modal fiber" is a generic term which, according to
the definition by BISFA (Bureau for the International
Standardization of Man-Made Fibers), denotes a cellulose fiber
having a defined high wet strength and a high wet modulus that has
also been defined (i.e., the force which is required for expanding
the fiber in the wet state by 5%).
[0019] Due to the softness of the modal fiber, neither plasticizers
are required during the production, nor fabric softeners are needed
for further use in the terry product according to the
invention.
DETAILED DESCRIPTION OF THE INVENTION
[0020] In the terry product according to the invention, the
cellulose fiber used can be provided as a cellulose staple fiber
having a cutting length of from 30 mm to 60 mm, preferably from 38
mm to 51 mm.
[0021] The cellulose fiber can be present in the form of a yarn or
a twisted yarn produced therefrom. Types known per se such as,
e.g., ring spun yarns, SIRO-yarns, core-spun yarns, compact yarns,
OE-yarns, air-jet yarns, chenille yarns, looped yarns and
zero-twist yarns, for example, in a mixture with polyvinyl alcohol
(PVA)-fibers and -yarns, come into consideration as yarns.
[0022] In the terry product according to the invention, the
cellulose fiber can be present in a mixture with a fiber material
selected from the group consisting of cotton, polyester, wool,
polytetrafluoroethylene (PTFE), polypropylene (PP), polyamide (PA),
polyacryl (PAC), polyvinyl alcohol (PVA), linen, silk, or also
viscose fibers, polynosic fibers, lyocell fibers and modal fibers
having a, for example, lower titer range.
[0023] A mixture of a modal fiber in the above-mentioned titer
range with cotton is particularly advantageous.
[0024] In a preferred embodiment, the textile base material and/or
the pile consist(s) essentially entirely of the cellulose fiber or
the mixture comprising the cellulose fiber, respectively. This
means that exclusively yarns from the cellulose fiber or blended
yarns, respectively, from the cellulose fiber and a second
component, e.g. cotton, are used for the production of the base
material and/or the pile.
[0025] The proportion of the cellulose fiber in the base material
and/or the pile advantageously ranges from 1% to 100%, preferably
from 10% to 100%, particularly preferably from 30% to 100%.
[0026] Mixtures of, in each case, 30% to 50% modal fibers and 70%
to 50% cotton, e.g., 30% modal fibers/70% cotton or 50% modal
fibers/50% cotton, are particularly preferred. As mentioned above,
these mixtures can be used in the material of the pile and/or in
the material of the backing fabric.
[0027] In another embodiment, merely the pile consists essentially
entirely of the cellulose fiber or, respectively, comprises a
mixture with a different fiber, and the base material consists of a
different fiber material. An embodiment with a base material of,
for example, 100% cotton and a pile of 100% modal fibers or a
mixture of 50% modal fibers and 50% cotton is advantageous.
[0028] In a further embodiment, both the pile and the base material
consist essentially entirely of the cellulose fiber or,
respectively, comprise a mixture with a different fiber. An
embodiment is beneficial in which both the base material and the
pile are made of 100% modal fibers or a mixture of 50% modal fibers
and 50% cotton or a mixture of 30% modal fibers and 70% cotton,
respectively.
[0029] In a further embodiment, the base material consists of
either 100% cotton or 100% modal fibers. The pile consists of two
threads, namely a thread made of 100% modal fibers and a thread
made of 100% cotton. This construction allows itself to be woven,
depending on the pattern, with the main focus specifically on the
modal fibers or the cotton, respectively. In case of piece dyeing
with selected dyestuffs, the portions of cotton and modal fibers,
respectively, differ in terms of shade and colour depth (e.g.
Jacquard effect). Instead of cotton, a fiber from the group
comprising polyester, wool, polypropylene, polyamide, polyacryl,
polyvinyl alcohol, linen, silk, viscose, polynosic and lyocell
and/or mixtures thereof can also be used for the second thread.
[0030] In the terry product according to the invention, the pile
preferably consists, as is known per se, of yarn loops or, as with
velour goods, of shorn yarn loops.
[0031] The textile base material is preferably selected from the
group consisting of woven fabrics, warp-knitted fabrics, knitted
fabrics and stitch-knitted fabrics.
[0032] The terry product according to the invention is preferably
provided in the form of or as a component, respectively, of an
article selected from the group consisting of towels, beach towels,
bath towels, sauna towels, bath robes, washcloths, bath carpets,
tea towels, bedclothes, e.g. bed linens, mattress and blanket
covers and mattress supports, baby clothes, sportswear, socks,
lining materials and diapers.
EXAMPLES
Example 1
[0033] The warp of the base material consists of a 100% cotton yarn
(Ne23.5/2 or Ne12/1), the weft also consists of 100% cotton--(Ne
16.5/1). For the pile, a blended yarn made up of 50% modal fibers
(2.5 dtex, cutting length 38 mm) and 50% cotton (Ne 16.5/1) is
used. The finished product exhibits excellent absorbency, high
bulkiness and excellent bulk stability. The article has an
inherently soft and pleasant feel. Finishing with plasticizers is
not required but actually has adverse effects since the absorbency
and absorption rate are clearly reduced.
Example 2
[0034] The warp of the base material consists, as in Example 1, of
a 100% cotton yarn (Ne23.5/2 or Ne12/1) and the weft consists of
100% cotton--Ne 16.5/1. For the pile, a yarn mixture of 88% modal
fibers (2.5 dtex, cutting length 51 mm) and 12% PVA (Ne 12
zero-twist yarn) is used. During the further processing of the
product, the PVA fibers are extracted, whereby the weight of the
product is reduced. The finished product exhibits excellent
absorbency and a very high volume of the looped yarn. Due to the
improved fiber bonding in the looped yarn as a result of using a
2.5 dtex modal fiber with a cutting length of 51 mm, such a towel
loses far less fibers during use than a comparable towel from a
zero-twist yarn made of cotton.
Example 3
[0035] The warp of the base material consists of a 100% cotton yarn
(Ne23.5/2 or Ne12/1), the weft also consists of 100% cotton--(Ne
16.5/1). For the pile, a blended yarn made up of 50% modal fibers
having a trilobal fiber cross-section (2.5 dtex, cutting length 38
mm) and 50% cotton (Ne 16.5/1) is used. The finished product
exhibits excellent absorbency, high bulkiness and excellent bulk
stability. The article has an inherently soft and pleasant feel.
Finishing with plasticizers is not required but actually has
adverse effects since the absorbency and absorption rate are
clearly reduced. Bulkiness, bulk stability, absorption rate and
absorbency are once more improved in comparison to Example 1.
* * * * *