GB2217741A - Treatment of silk fabrics - Google Patents

Treatment of silk fabrics Download PDF

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Publication number
GB2217741A
GB2217741A GB8809397A GB8809397A GB2217741A GB 2217741 A GB2217741 A GB 2217741A GB 8809397 A GB8809397 A GB 8809397A GB 8809397 A GB8809397 A GB 8809397A GB 2217741 A GB2217741 A GB 2217741A
Authority
GB
United Kingdom
Prior art keywords
fabric
melamine resin
treatment
colloidal
silicone elastomer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8809397A
Other versions
GB2217741B (en
GB8809397D0 (en
Inventor
Derek Wallwork Heywood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bip Chemicals Ltd
Original Assignee
Bip Chemicals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bip Chemicals Ltd filed Critical Bip Chemicals Ltd
Priority to GB8809397A priority Critical patent/GB2217741B/en
Publication of GB8809397D0 publication Critical patent/GB8809397D0/en
Priority to JP10150389A priority patent/JPH0284582A/en
Priority to CN 89102609 priority patent/CN1028552C/en
Publication of GB2217741A publication Critical patent/GB2217741A/en
Application granted granted Critical
Publication of GB2217741B publication Critical patent/GB2217741B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
    • 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
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423—Amino-aldehyde resins

Landscapes

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

Abstract

In a treatment process by which the crease-resistance and stability to washing of a silk fabric can be improved while yet preserving its 'handle' or feel, the fabric is impregnated with a colloidal melamine resin and a non-ionic silicone elastomer.

Description

Treatment of silk fabrics This invention relates to the treatment of silk fabrics.
Silk fabrics are valued for their 'handle' or feel, and in order to preserve this and also to avoid creasing them they have to be washed carefully. During subsequent drying also, they have to be handled with care so as not to crease them or cause them to shrink. If they are subjected to anti-creasing or stabilising treatments suitable for other fabrics the result is, almost invariably, that the feel of the fabric becomes more like that of fabric made from synthetic fibre.
The present invention provides a treament process by which a silk fabric can, while preserving its feel, be made less susceptible to the creasing and loss of stability which occur if it is washed or dried with less than usual care.
The invention makes use of two different kinds of resin: a colloidal melamine resin and a non-ionic silicone elastomer. The latter is commercially available for conferring a soft, smooth, dry handle on textile fabrics, especially cotton and synthetics. The former, used in the treatment of paper to improve its wet strength, is obtained by dissolving a partially condensed melamine formaldehyde resin in an acid such as hydrochloric, formic or acetic acid under controlled conditions, and further diluting with water. The solution becomes infinitely miscible with water, and on aging slowly develops a bluish haze. The solution contains positively charged colloidal particles of the melamine resin.
According to the invention there is provided a process for improving the crease-resistance and stability to washing of a silk fabric, in which the fabric is impregnated with a colloidal melamine resin and a non-ionic silicone elastomer.
Preferably, the silicone elastomer is dispersed in the colloidal melamine resin ie in the aqueous phase which constitutes the dispersion medium of that system.
The melamine resin is preferably one which has at least 3 - CH2OR groups per melamine nucleus, where R = H or C1 -4 alkyl.
The invention is further illustrated by the following Example.
Example An acidic melamine resin solution was produced by mixing the following ingredients in the following proportions by weight.
kg Aqueous solution (80% reactive solids; pH at 1:1 H20 dilution = 8.5) of partially condensed melamine formaldehyde resin available as BEETLER 336 10 Concentrated hydrochloric acid 1 (specific gravity = 1.16) Water at 400C 36 The mixture was allowed to stand for 2 hours to develop colloidal properties, and then diluted with an equal volume of water to give a colloidal melamine resin having a shelf life of more than 6 months.
The diluted composition (1 part by weight) was further diluted with water (4 parts) and to this mixture was added the silicone elastomer in the form of an aqueous emulsion of a non-ionic reactive polysiloxane (0.45 parts by weight of the product sold under the name SandopermR FEN Liquid).
The mixed resin composition was then applied in an entirely conventional way (by a 2-bowl pad mangle) to conventionally degummed raw silk fabric. Uptake of the solution was about 80% by weight of the fabric.
The impregnated fabric was then air-dried by means of a 6-compartment stenter (compartments 1 and 2 at 900C; 3-6 at 110-120 0C). Testing showed the fabric to have improved crease-resistance, and stability in both washing and dry cleaning: It dried more quickly, and its shrinkage was reduced from 5% (untreated fabric; warp and weft) to 1.5% (treated fabric: warp and weft). It had good feel.
Treatment of dyed and of printed silk fabrics following the above procedure gave similarly good results.
If passage through the stenter is controlled so as to leave the fabric with about 6X moisture, the fabric may be embossed or otherwise mechanically finished at elevated temperature to give a permanent finish by virtue of the heat curing of the resins that then occurs.

Claims (4)

1. A process for improving the crease-resistance and stability to washing of a silk fabric, in which the fabric is impregnated with a colloidal melamine resin and a non-ionic silicone elastomer.
2. A process according to claim 1, in which the silicone elastomer is dispersed in the colloidal melamine resin.
3. A process according to claim 1 or 2, in which the melamine resin is one which has at least 3 -CH2OR groups per melamine nucleus, where R = H or C14 alkyl.
4. A process according to claim 1 substantially as herein described with reference to the Example.
GB8809397A 1988-04-21 1988-04-21 Treatment of silk fabrics Expired - Fee Related GB2217741B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8809397A GB2217741B (en) 1988-04-21 1988-04-21 Treatment of silk fabrics
JP10150389A JPH0284582A (en) 1988-04-21 1989-04-20 Treatment of silk fabric
CN 89102609 CN1028552C (en) 1988-04-21 1989-04-20 Treatment of silk fabrics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8809397A GB2217741B (en) 1988-04-21 1988-04-21 Treatment of silk fabrics

Publications (3)

Publication Number Publication Date
GB8809397D0 GB8809397D0 (en) 1988-05-25
GB2217741A true GB2217741A (en) 1989-11-01
GB2217741B GB2217741B (en) 1991-07-31

Family

ID=10635561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8809397A Expired - Fee Related GB2217741B (en) 1988-04-21 1988-04-21 Treatment of silk fabrics

Country Status (3)

Country Link
JP (1) JPH0284582A (en)
CN (1) CN1028552C (en)
GB (1) GB2217741B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2649732A1 (en) * 1989-07-13 1991-01-18 Kanebo Ltd WASHABLE SILK ETOFFE AND METHOD FOR PREPARING THE SAME
EP0441421A1 (en) * 1990-02-07 1991-08-14 Bip Chemicals Limited Treatment of wool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220908A (en) * 1990-11-10 1993-06-22 Dowa Iron Powder Co., Ltd. Pyrogen and canister incorporating pyrogen
CN103215810B (en) * 2013-05-09 2015-06-24 安徽大学 Finishing liquid for finishing silk creases and silk crease finishing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58163782A (en) * 1982-03-15 1983-09-28 柿木　英夫 Softening and wrinkle-proof processing of silk fabric

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2649732A1 (en) * 1989-07-13 1991-01-18 Kanebo Ltd WASHABLE SILK ETOFFE AND METHOD FOR PREPARING THE SAME
EP0441421A1 (en) * 1990-02-07 1991-08-14 Bip Chemicals Limited Treatment of wool
AU630275B2 (en) * 1990-02-07 1992-10-22 Bip Chemicals Limited Treatment of wool

Also Published As

Publication number Publication date
GB2217741B (en) 1991-07-31
GB8809397D0 (en) 1988-05-25
CN1039276A (en) 1990-01-31
JPH0284582A (en) 1990-03-26
CN1028552C (en) 1995-05-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980421