WO2012116384A1 - Shrink resist and industrially launderable fabrics made from viscose, lyocell or modal fibers containing particulate additives - Google Patents

Shrink resist and industrially launderable fabrics made from viscose, lyocell or modal fibers containing particulate additives Download PDF

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Publication number
WO2012116384A1
WO2012116384A1 PCT/AT2012/000034 AT2012000034W WO2012116384A1 WO 2012116384 A1 WO2012116384 A1 WO 2012116384A1 AT 2012000034 W AT2012000034 W AT 2012000034W WO 2012116384 A1 WO2012116384 A1 WO 2012116384A1
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WIPO (PCT)
Prior art keywords
fabric
viscose
formaldehyde
fabric according
weight
Prior art date
Application number
PCT/AT2012/000034
Other languages
French (fr)
Inventor
James Martin Taylor
Marina Crnoja-Cosic
Thomas Richard Burrow
Original Assignee
Lenzing Ag
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Filing date
Publication date
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Publication of WO2012116384A1 publication Critical patent/WO2012116384A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/12—Aldehydes; Ketones
    • D06M13/127—Mono-aldehydes, e.g. formaldehyde; Monoketones
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic

Definitions

  • Spun dyed viscose and inherently FR viscose are manmade cellulosic fibers that contain finely divided solid particulate materials that perform the required function.
  • the particulate material is a pigment of the colour required in the final fibre.
  • the particulate material is a flame retardant in solid form.
  • the particulate material is dispersed in the cellulose solution before the fibre is formed.
  • the particulate material may be added to the cellulose solution at any point before spinning. For example it may be added with the wood pulp which is the source of the cellulose or I may be added during dissolution of the cellulose xanthogenate to form the spinning solution or it may be added to a cellulose solution during mixing or
  • the dyeing exhibits excellent fastness to wetting.
  • the conventional dyeing process is unnecessary, resulting in savings of energy and raw materials (chemicals and water) and reduced risk of environmental pollution by waste water.
  • FR viscose an organophosphoric flame retardant additive is mixed as an aqueous predispersion into a solution of cellulose xanthogenate, filtered and spun into a regenerating and coagulation spin bath.
  • spun dyed viscose products is Viscose Color from Lenzing AG.
  • Lenzing FR is an inherently FR cellulosic fiber, that has a higher tenacity and wet modulus than conventional viscose.
  • Shrinkage is a very serious problem when aqueous systems are applied to viscose containing fabrics and because of this shrinkage, viscose containing fabrics generally require dry cleaning as opposed to washing in aqueous media. This is a disadvantage for viscose and it would be a significant advance if viscose containing fabrics could be treated so as to make them washable in water.
  • shrinkage When the fabric is made from 100% viscose and subjected to aqueous washing, shrinkage may be as high as 18-20%.
  • the shrinkage problem is also severe with a polyester / viscose fabric, because the viscose shrinks so much, and the polyester so little, that the fabric becomes distorted due to the difference in the rate of shrinkage of the two fibers.
  • Spun dyed viscose and FR viscose fabrics exhibit this problem in the same way as fabrics made from normal viscose fibre.
  • the conventional approach to solving this fabric shrinkage problem is to apply a finish to the fabric.
  • Methods have been devised for treating cellulosic fiber containing products which impart durable crease retention, wrinkle resistance and smooth drying characteristics to these products and at the same time reduce the shrinkage significantly.
  • These methods use resins or pre- condensates of the urea-formaldehyde or substituted urea- formaldehyde such as dimethylol-di-hydroxy-ethylene-urea (DMDHEU) types to produce a resin treated durable press product.
  • DMDHEU dimethylol-di-hydroxy-ethylene-urea
  • the solution to the problem described above is a fabric made in whole or in part from a man-made cellulosic fibre which contains a particulate material, which exhibits shrinkage of less than 2.5% in woven form and 5% in knitted form when subjected to 25 cycles of aqueous laundering, wherein the fabric is unresinated and is provided with a silicone elastomer.
  • the man-made cellulosic fibre is a viscose or modal fibre.
  • the man-made cellulosic fibre is a lyocell fibre.
  • the particulate material is a colored pigment.
  • the particulate material is a flame retardant.
  • man-made cellulosic fibre which contains a particulate material is blended or comixed with one or more other fibres such as but not limited to polyester, nylon, modacrylic, para-aramid, meta-aramid wool or cotton
  • the fabric is treated with a composition comprising formaldehyde and catalyst. More preferably the composition comprises from about 5.18% to about 7.4% by weight, formaldehyde.
  • composition consists essentially of water, formaldehyde, silicone elastomer and catalyst.
  • a subject matter of the invention is a process for treating a fabric comprising pigment containing viscose or modal fibres or blends containing such, wherein the fabric is treated by the process comprising steps of:
  • the fabric has a moisture content of more than 20% by weight.
  • the liquid composition further comprises an amount of silicone elastomer composition sufficient to provide from 0.1% to 5% on weight of fabric, solids.
  • the liquid composition further comprises a dimethyl silicone elastomer emulsion.
  • the liquid composition comprises the dimethyl silicone elastomer emulsion at a level sufficient to provide from 0.053% to 2.65% on weight of fabric, silicone solids.
  • the composition comprises from about 14% to about 20% by weight, formalin, and wherein the formalin comprises 37% by weight, formaldehyde.
  • a silicone elastomer may also be included with the formaldehyde and acid catalyst as part of the finishing process to help achieve the required fabric hand.
  • the result is, viscose containing fabrics having unique properties including low shrinkage which makes them water washable and which provides a distinct commercial advantage over viscose containing fabrics produced using conventional resination.
  • Treating fabrics made from viscose fibre which contains a particulate pigment and/or a particulate flame retardant with the high level formaldehyde system results in performance levels that are unachievable by any other technology.
  • the fabrics that result have excellent hand, do not suffer from significant loss of strength, have good easy care and wrinkle resistance and do not have excessive shrinkage levels.
  • Washing shrinkage typically less than 3% by area, even in knitted constructions.
  • Viscose Color spun dyed black fiber was spun into 1/30s Ne yarn. From this yarn single jersey fabrics were knitted both in 100% form (150gsm) and 95/5 blend with Lycra (212gsm).
  • the fabric was finished using the formaldehyde system:
  • the shrinkage results for the untreated fabric are unacceptable for any normal application.
  • the shrinkage results for the treated fabric are excellent and would be acceptable for any normal application.
  • Viscose Color spun dyed black fiber was spun into 1/20s Ne yarn, in both 100% and as a 50/50 intimate blend with spun dyed black polyester. Each of the two yarns was then woven into a 3x1 twill fabric. Both fabrics had a 50/50 polyester / viscose warp 36ends / cm.
  • Fabric A also had a 50/50 polyester / viscose weft (32 picks / cm)
  • Fabric B had a 100% viscose weft also with 32 picks / cm.
  • the shrinkage results for the untreated fabric are unacceptable for any normal application.
  • the shrinkage results for the treated fabric are excellent and would be acceptable for any normal application.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention claims a fabric made in whole or in part from a man-made cellulosic fibre which contains a particulate material, which exhibits shrinkage of less than 2.5% in woven form and 5% in knitted form when subjected to 25 cycles of aqueous laundering, wherein the fabric is unresinated and is provided with a silicone elastomer. Additionally a process for the manufacture of such a fabric is claimed.

Description

SHRINK RESIST AND INDUSTRIALLY LAUNDERABLE FABRICS MADE FROM VISCOSE, LYOCELL OR MODAL FIBERS CONTAINING PARTICULATE
ADDITIVES
Background
Spun dyed viscose and inherently FR viscose are manmade cellulosic fibers that contain finely divided solid particulate materials that perform the required function. In the case of spundyed viscose the particulate material is a pigment of the colour required in the final fibre. In FR viscose the particulate material is a flame retardant in solid form.
Generally, for both fibre types, the particulate material is dispersed in the cellulose solution before the fibre is formed. The particulate material may be added to the cellulose solution at any point before spinning. For example it may be added with the wood pulp which is the source of the cellulose or I may be added during dissolution of the cellulose xanthogenate to form the spinning solution or it may be added to a cellulose solution during mixing or
immediately prior to extrusion as a slurry.
Among other things, the advantages of spin dyeing are as follows:
Large batches having the same shade of colour may be obtained.
The dyeing exhibits excellent fastness to wetting.
The conventional dyeing process is unnecessary, resulting in savings of energy and raw materials (chemicals and water) and reduced risk of environmental pollution by waste water.
There is no loss of dye.
The problem of unevenness or streaking during dyeing does not occur.
A homogeneous distribution of the dye in the fibre and thus uniform dye penetration are achieved. For FR viscose an organophosphoric flame retardant additive is mixed as an aqueous predispersion into a solution of cellulose xanthogenate, filtered and spun into a regenerating and coagulation spin bath. An example of spun dyed viscose products is Viscose Color from Lenzing AG. Lenzing FR is an inherently FR cellulosic fiber, that has a higher tenacity and wet modulus than conventional viscose.
An example of a conventional inherently FR viscose is So FR viscose fiber from Waxman Speciality Products.
Shrinkage is a very serious problem when aqueous systems are applied to viscose containing fabrics and because of this shrinkage, viscose containing fabrics generally require dry cleaning as opposed to washing in aqueous media. This is a disadvantage for viscose and it would be a significant advance if viscose containing fabrics could be treated so as to make them washable in water.
When the fabric is made from 100% viscose and subjected to aqueous washing, shrinkage may be as high as 18-20%. The shrinkage problem is also severe with a polyester / viscose fabric, because the viscose shrinks so much, and the polyester so little, that the fabric becomes distorted due to the difference in the rate of shrinkage of the two fibers. Spun dyed viscose and FR viscose fabrics exhibit this problem in the same way as fabrics made from normal viscose fibre.
The conventional approach to solving this fabric shrinkage problem is to apply a finish to the fabric. Methods have been devised for treating cellulosic fiber containing products which impart durable crease retention, wrinkle resistance and smooth drying characteristics to these products and at the same time reduce the shrinkage significantly. These methods use resins or pre- condensates of the urea-formaldehyde or substituted urea- formaldehyde such as dimethylol-di-hydroxy-ethylene-urea (DMDHEU) types to produce a resin treated durable press product. However, viscose fabrics finished with these systems generally lose significant strength and their useable life is reduced.
Summary of the Invention It is possible to achieve good shrinkage performance, durable press properties and good strength retention in a fabric which contains viscose fiber with a process that utilises acid catalysts and high concentrations of formaldehyde. Such a process in disclosed in United States Patent 6,511 ,928 The process produces consistent results. The resulting fabric may be cleaned using normal washing detergents and water and does not require the fabric to be dry cleaned.
The solution to the problem described above is a fabric made in whole or in part from a man-made cellulosic fibre which contains a particulate material, which exhibits shrinkage of less than 2.5% in woven form and 5% in knitted form when subjected to 25 cycles of aqueous laundering, wherein the fabric is unresinated and is provided with a silicone elastomer.
In a preferred embodiment of the invention the man-made cellulosic fibre is a viscose or modal fibre.
In another preferred embodiment of the invention the man-made cellulosic fibre is a lyocell fibre.
Preferably the particulate material is a colored pigment.
In another preferred embodiment of the invention the particulate material is a flame retardant.
Preferably the man-made cellulosic fibre which contains a particulate material is blended or comixed with one or more other fibres such as but not limited to polyester, nylon, modacrylic, para-aramid, meta-aramid wool or cotton
Preferably the fabric is treated with a composition comprising formaldehyde and catalyst. More preferably the composition comprises from about 5.18% to about 7.4% by weight, formaldehyde.
In a preferred embodiment of the invention the composition consists essentially of water, formaldehyde, silicone elastomer and catalyst. Also a subject matter of the invention is a process for treating a fabric comprising pigment containing viscose or modal fibres or blends containing such, wherein the fabric is treated by the process comprising steps of:
• contacting the fabric with a liquid composition comprising catalyst and from about 5.18% to 7.4% formaldehyde by weight,
• heat curing the fabric and
• cleaning the fabric after heat curing,
• wherein the fabric is provided with a silicone elastomer and is
unresinated. Preferably prior to the step of heat curing, the fabric has a moisture content of more than 20% by weight.
Preferably the liquid composition further comprises an amount of silicone elastomer composition sufficient to provide from 0.1% to 5% on weight of fabric, solids. Preferably the liquid composition further comprises a dimethyl silicone elastomer emulsion.
Preferably the liquid composition comprises the dimethyl silicone elastomer emulsion at a level sufficient to provide from 0.053% to 2.65% on weight of fabric, silicone solids. Preferably the composition comprises from about 14% to about 20% by weight, formalin, and wherein the formalin comprises 37% by weight, formaldehyde.
A silicone elastomer may also be included with the formaldehyde and acid catalyst as part of the finishing process to help achieve the required fabric hand. The result is, viscose containing fabrics having unique properties including low shrinkage which makes them water washable and which provides a distinct commercial advantage over viscose containing fabrics produced using conventional resination.
Treating fabrics made from viscose fibre which contains a particulate pigment and/or a particulate flame retardant with the high level formaldehyde system results in performance levels that are unachievable by any other technology. The fabrics that result have excellent hand, do not suffer from significant loss of strength, have good easy care and wrinkle resistance and do not have excessive shrinkage levels.
Spun Dyed Viscose and Formaldehyde Finishing shows:
• Excellent wet fastness than cannot be equalled by conventional dyeing technology
• Lowest impact to the environment - conventional dyeing is
unnecessary which results in significant savings in water and chemicals.
• Washing shrinkage of typically less than 3% by area, even in knitted constructions.
• Excellent durable press ratings typically better than 3.5 that can be classified as non-iron.
• Resistance to industrial laundry processes giving suitability for
demanding workwear applications.
Inherently FR viscose and Formaldehyde Finishing shows:
· Washing shrinkage of typically less than 3% by area, even in knitted constructions.
• Excellent durable press ratings typically better than 3.5 that can be classified as non-iron.
• Resistance to industrial laundry processes giving suitability for
demanding workwear applications.
• Retention of FR performance through extended washing cycles.
Examples Example 1
Viscose Color spun dyed black fiber was spun into 1/30s Ne yarn. From this yarn single jersey fabrics were knitted both in 100% form (150gsm) and 95/5 blend with Lycra (212gsm).
The fabric was finished using the formaldehyde system:
• Pad in
o 10% Formaldehyde
o 3% Freecat LF (from Freedom Chemicals) - based on
Magnesium Chloride / Citric Acid
o 1.5% Silicone elastomeric softener
o Wet pick up 90%
• Dry and Cure 10 minutes at 150°C
• Wash off to remove excess formaldehyde in hot water and neutralise a dilute solution of sodium bicarbonate.
The shrinkage results for the untreated fabric and the formaldehyde treated fabric are given in Table 1 :
Table 1 :
Figure imgf000007_0001
The shrinkage results for the untreated fabric are unacceptable for any normal application. The shrinkage results for the treated fabric are excellent and would be acceptable for any normal application.
Example 2
Viscose Color spun dyed black fiber was spun into 1/20s Ne yarn, in both 100% and as a 50/50 intimate blend with spun dyed black polyester. Each of the two yarns was then woven into a 3x1 twill fabric. Both fabrics had a 50/50 polyester / viscose warp 36ends / cm.
Fabric A also had a 50/50 polyester / viscose weft (32 picks / cm)
Fabric B had a 100% viscose weft also with 32 picks / cm.
The fabrics were split into halves:
Half was treated with conventional resin:
• 60g/l Knittex FEL
• 15g/l Magnesium Chloride
• 20g/l Perisoft GS (silicone softener)
• 2g/l Kieralon JET (wetting agent)
• Pad (80% wet pick up), dry at 120°C, cure 45 sees at 175°C The second half was treated with formaldehyde as in example 1. Shrinkage tests gave the results shown in Table 2:
Table 2:
Figure imgf000008_0001
The fabrics treated with formaldehyde gave shrinkage results that are comparable with the best normally achieved in any textile processing. The fabrics treated with conventional resin gave results that indicate significant shrinkage making them unsuitable for some applications. The fabrics were then tested for a range of properties appropriate for an industrial laundry application:
Example 3
A 100% Lenzing FR knitted single jersey fabric was treated in formaldehyde as in example 1. Test results were as shown in Table 3:
Table 3:
Figure imgf000009_0001
The shrinkage results for the untreated fabric are unacceptable for any normal application. The shrinkage results for the treated fabric are excellent and would be acceptable for any normal application.
Example 4
A 2x1 twill weave fabric of Lenzing FR in blend with Kermel (aramid fiber): 30/70 Lenzing LF / Kermel, 230gsm, was treated in formaldehyde as in example 1. Test results were as shown in Table 4:
Table 4:
Figure imgf000010_0001
The fabric treated with formaldehyde gave a significant improvement in the shrinkage results compared with the untreated fabric and gave a slight improvement in the durable press rating. The effect on tensile strength and tear strength was less than would be expected from conventional resin finishing.

Claims

Claims:
1. A fabric made in whole or in part from a man-made cellulosic fibre
which contains a particulate material, which exhibits shrinkage of less than 2.5% in woven form and 5% in knitted form when subjected to 25 cycles of aqueous laundering, wherein the fabric is unresinated and is provided with a silicone elastomer.
2. A fabric according to claim 1 , wherein the man-made cellulosic fibre is a viscose or modal fibre.
3. A fabric according to claim 1 , wherein the man-made cellulosic fibre is a lyocell fibre.
4. A fabric according to claim 1 , wherein the particulate material is a
colored pigment.
5. A fabric according to claim 1 , wherein the particulate material is a flame retardant.
6. A fabric according to claim 1 wherein the man-made cellulosic fibre which contains a particulate material is blended or comixed with one or more other fibres such as but not limited to polyester, nylon,
modacrylic, para-aramid, meta-aramid wool or cotton
7. A fabric according to claim 1 , wherein the fabric is treated with a
composition comprising formaldehyde and catalyst.
8. A fabric according to claim 2, wherein the composition comprises from about 5.18% to about 7.4% by weight, formaldehyde.
9. A fabric according to claim 2, wherein the composition consists
essentially of water, formaldehyde, silicone elastomer and catalyst.
10. A fabric according to claim 7, wherein the liquid composition further comprises an amount of silicone elastomer composition sufficient to provide from 0.1% to 5% on weight of fabric, solids.
1 1. A fabric according to claim 7, wherein the liquid composition further comprises a dimethyl silicone elastomer emulsion.
12. A fabric according to claim 11 , wherein the liquid composition
comprises the dimethyl silicone elastomer emulsion at a level sufficient to provide from 0.053% to 2.65% on weight of fabric, silicone solids.
13. A fabric according to claim 7, wherein the composition comprises from about 14% to about 20% by weight, formalin, and wherein the formalin comprises 37% by weight, formaldehyde.
14. A process for treating a fabric comprising pigment containing viscose or modal fibres or blends containing such, wherein the fabric is treated by the process comprising steps of: a. contacting the fabric with a liquid composition comprising
catalyst and from about 5.18% to 7.4% formaldehyde by weight, b. heat curing the fabric and c. cleaning the fabric after heat curing, wherein the fabric is provided with a silicone elastomer and is unresinated.
15. A process according to claim 14, wherein prior to the step of heat
curing, the fabric has a moisture content of more than 20% by weight.
PCT/AT2012/000034 2011-03-01 2012-02-17 Shrink resist and industrially launderable fabrics made from viscose, lyocell or modal fibers containing particulate additives WO2012116384A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA268/2011 2011-03-01
AT2682011A AT511186A1 (en) 2011-03-01 2011-03-01 Shrink-resistant and industrially washable fabrics made of viscose and modal fibers with particulate additives

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467174A1 (en) * 2017-10-06 2019-04-10 Lenzing Aktiengesellschaft Knitted continuous filament lyocell fabrics
US12091781B2 (en) 2017-10-06 2024-09-17 Lenzing Aktiengesellschaft Silk-like woven garment containing or consisting of lyocell filaments

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Publication number Priority date Publication date Assignee Title
US3620788A (en) * 1967-11-10 1971-11-16 Ciba Ltd Sparingly soluble organic dyestuffs
WO1997002315A1 (en) * 1995-07-05 1997-01-23 Lenzing Aktiengesellschaft Regenerated cellulose incorporating phosphorous compounds so as to be flame-retardant
WO1999046434A1 (en) * 1998-03-12 1999-09-16 Lenzing Aktiengesellschaft Method for producing cellulosic moulded bodies
WO2001073184A2 (en) * 2000-03-29 2001-10-04 The Procter & Gamble Company Methods for improving water absorbency of fabrics and fabrics with improved properties
US20010052193A1 (en) * 1998-09-30 2001-12-20 Payet George L. Shrink resistant rayon fabrics
US6511928B2 (en) 1998-09-30 2003-01-28 The Procter & Gamble Company Rayon fabric with substantial shrink-resistant properties
WO2003106756A2 (en) * 2002-06-17 2003-12-24 The Procter & Gamble Company Methods for improving dimensional stability and/or durable press properties of elastic fabrics and elastic fabrics with improved properties

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US5885303A (en) * 1997-05-13 1999-03-23 American Laundry Machinery Incorporated Durable press/wrinkle-free process
US6375685B2 (en) * 1997-05-13 2002-04-23 The Procter & Gamble Company Textile finishing process

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620788A (en) * 1967-11-10 1971-11-16 Ciba Ltd Sparingly soluble organic dyestuffs
WO1997002315A1 (en) * 1995-07-05 1997-01-23 Lenzing Aktiengesellschaft Regenerated cellulose incorporating phosphorous compounds so as to be flame-retardant
WO1999046434A1 (en) * 1998-03-12 1999-09-16 Lenzing Aktiengesellschaft Method for producing cellulosic moulded bodies
US20010052193A1 (en) * 1998-09-30 2001-12-20 Payet George L. Shrink resistant rayon fabrics
US6511928B2 (en) 1998-09-30 2003-01-28 The Procter & Gamble Company Rayon fabric with substantial shrink-resistant properties
WO2001073184A2 (en) * 2000-03-29 2001-10-04 The Procter & Gamble Company Methods for improving water absorbency of fabrics and fabrics with improved properties
WO2003106756A2 (en) * 2002-06-17 2003-12-24 The Procter & Gamble Company Methods for improving dimensional stability and/or durable press properties of elastic fabrics and elastic fabrics with improved properties

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467174A1 (en) * 2017-10-06 2019-04-10 Lenzing Aktiengesellschaft Knitted continuous filament lyocell fabrics
WO2019068475A1 (en) * 2017-10-06 2019-04-11 Lenzing Aktiengesellschaft Knitted continuous filament lyocell fabrics
RU2745811C1 (en) * 2017-10-06 2021-04-01 Ленцинг Актиенгеселльшафт Knitted fabrics from continuous lyocell fiber
TWI770284B (en) * 2017-10-06 2022-07-11 奧地利商藍晶股份公司 Knitted continuous filament lyocell fabrics
US12091781B2 (en) 2017-10-06 2024-09-17 Lenzing Aktiengesellschaft Silk-like woven garment containing or consisting of lyocell filaments

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