专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

GB545468A Weather resistant transparent or translucent material 未知
公开(公告)号：GB545468A
公开(公告)日：1942-05-28
申请号：GB1697540
申请日：1940-11-27
申请人： JOHN GWYNANT EVANS , RICHARD JAMES SMITH , ICI LTD
IPC分类号： D06M15/39
摘要： 545,468. Coated fabrics. EVANS, J. G., SMITH, R. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 27, 1940. Nos. 16975 and 17710. [Class 140] A substitute for window-glass is made by applying to mesh fabric a solution of a watersoluble film-forming substance and then coating it with a synthetic resin. The fabric may be woven, knitted or netted from cotton, viscose, jute or metal wire, e.g. scrim, muslin, netting or lace. Suitable water-soluble film-forming substances are gelatine, glue, albumen, gum arabic, gum senegal, shellac, polyvinyl alcohol, Irish moss, cellulose ethers, alginic acid and starch. Suitable synthetic resins include polyvinyl chloride, polyacrylic and polymethacrylic esters, polystyrene and interpolymers thereof, urea- and phenol-formaldehyde and polyhydric alcohol polybasic acid resins. These may be applied as partial condensates and further condensed in situ. Softening agents may be added or both coating solutions, e.g. glycerine, sulphonated oil, e.g. Turkey red oil, glucose, ethylene glycol, carbitol, dibutyl phthalate, tricresyl phosphate. The fabric may be rendered hydrophobic before coating by treatment with aluminium acetate or formate or zirconium oxycholride ; aluminium or zinc stearates or palmitates; paraffin wax, carnauba wax, beeswax or polymerized ethylene ; or by the treatments described in Specifications 461,179, 463;300, 466,817, 474,403, 477,991, 481,099, 493,920, 495,025, 497,856, 498,287, 517,474, 517,631 and 517,632. Examples describe the use of a solution in ethylene glycol monoethyl ether of a urea-formaldehyde intermediate condensation product modified by a castor oil modified polyhydric alcohol-polybasic acid resin and of a solution in trichlorethylene of polymethyl methacrylate for the final coating.

2. 发明专利

GB493920A Rendering wool and silk water-repellent 未知
公开(公告)号：GB493920A
公开(公告)日：1938-10-17
申请号：GB1096837
申请日：1937-04-16
申请人： JOHN GWYNANT EVANS , CHARLES EDWARD SALKELD , ICI LTD
IPC分类号： D06M13/322 , D06M13/46
摘要： Wool, including chlorinated wool and artificial wool made from proteins such as casein, and silk are made water-repellent by impregnating them with a quaternary ammonium salt of the formula and subsequently heating, preferably after previous drying, to a temperature such that the salt is decomposed. In the formula R is an aliphatic radical of at least 12 carbon atoms which may be a saturated or unsaturated hydrocarbon radical or a radical of the formula R1-CO wherein R1 is an aliphatic hydrocarbon radical of at least 11 carbon atoms; X is oxygen, sulphur or an amino or substituted imino group; represents the residue of an aliphatic or heterocyclic tertiary base; and Y is the monovalent anion of an acid, e.g. of hydrochloric, hydrobromic, nitric, sulphuric, oxalic or p-toluene sulphonic acids. Suitable salts include stearamidomethylpyridinium chloride, lauramidomethylpyridinium pyridine sulphate, N - carbomethoxyheptadecylaminomethyl pyridinium chloride, octadecyloxy methyl pyridinium chloride, stearomethylamidomethylpyridinium chloride, stearamidomethylpyridinium pyridine sulphite, stearamidomethylpyridinium pyridine sulphate, stearamidomethylpyridinium bromide, stearamidomethylpyridinium nitrate, oleylamidomethylpyridinium chloride, octadecyloxymethyl benzyl piperidinium chloride, cetyloxymethylpyridinium chloride, octadecyloxymethylpyridinium iodide, octadecyloxymethylpyridinium acid oxalate, octadecyloxymethylpyridinium nitrate, cetyloxymethylpyridinium acid oxalate, octadecyloxymethylquinolinium chloride, octadecyloxymethyltriethanolammonium chloride, cetyloxymethylhexamethylene tetrammonium bromide, and mixtures of cetyloxymethylpyridinium pyridine sulphite and cetyloxymethylpyridinium pyridine pyrosulphite. Methods of making such salts are described in Specifications 471,130, 475,119, 475,170, and 488,869. The quaternary salt may be applied as a dispersion or solution in aqueous or organic solvents such as ethanol and toluene. The baking temperature may be 90-150 DEG C. Mildly alkaline agents, especially those having a buffering action, such as borax, hexamethylene tetramine, magnesium hydroxide, pyridine and aniline, or acidic substances such as sulphuric, hydrochloric, phosphoric or acetic acids or sodium dihydrogen phosphate, may be added to the bath. The treated material is stated to acquire a soft handle, improved draping properties or altered dyeing properties. In the case of dyed or printed materials there may be a fixative action on the dyestuffs.

3. 发明专利

GB437273A Process of dyeing 未知
公开(公告)号：GB437273A
公开(公告)日：1935-10-21
申请号：GB1187034
申请日：1934-04-19
申请人： ICI LTD , JOHN GWYNANT EVANS , HENRY ALFRED PIGGOTT , CLARENCE SYDNEY WOOLVIN
摘要： Substantive and unspecified types of dyes, dyeing with; regenerated celluloses, dyeing.--The fastness of dyeings upon textile materials made of natural or regenerated cellulose or of wool or silk or of two or more of these fibres is improved by after-treatment with a dilute aqueous solution of a ternary sulphonium or quaternary phosphonium salt containing an alkyl radicle of at least 10 carbon atoms. Such salts are of the general formul R--X--S (R R )--Ac or R--X--P(R R R )--Ac wherein R represents an alkyl radicle of at least 9 carbon atoms, R , R and R represent lower alkyl radicles, Ac represents the radicle of an inorganic acid or of an organic sulphonic or carboxylic acid and X represents a group connected to R through a carbon atom when R contains only 9 carbon atoms or otherwise a linking group such as --CH2--, --C6H4--, --NH.CH2--, --NH.CO.CH2--, --CO.NH. CH2--, --O.CO.CH2--, --CO.O.CH2--, --O.CH2.CH2-- or --CO.NH.C6H4.CH2--. The following examples are specified. (1) Cotton fabric, dyed with Chlorazol sky blue FF and rinsed, is immersed for 20 minutes in a 0,1 per cent aqueous solution at room temperature of dimethylhexadecylsulphonium methosulphate, rinsed and dried to obtain a dyeing of improved fastness to water, perspiration and acid cross-dyeing; the sulphonium salt may be replaced by benzylethyldodecylsulphonium chloride or stearamidobenzyldimethylsulphonium chloride. (2) Cotton fabric, dyed with Chlorazol fast red K, is immersed for 20 minutes in a 0,1 per cent aqueous solution at room temperature of triethylhexadecylphosphonium bromide, rinsed and dried to obtain a dyeing of similarly improved fastness; the phosphonium salt may be replaced by triethyldodecylphosphonium bromide. Specification 398,175 is referred to. Benzylethyldodecylsulphonium chloride is obtained by treating with benzyl chloride the product of reaction of dodecylmercaptan and ethyl chloride in presence of caustic soda. Stearamidobenzyldimethylsulphonium methosulphate is obtained by the action of dimethyl sulphate on the product of reaction of stearic acid on p-aminobenzylmethyl sulphide obtained by methylating p-nitrobenzylmercaptan and reducing the nitro group.

4. 发明专利

GB574408A Preservation of textile materials or paper 未知
公开(公告)号：GB574408A
公开(公告)日：1946-01-03
申请号：GB661744
申请日：1944-04-11
申请人： WILLIAM BAIRD , JOHN GWYNANT EVANS , JAMES ROBERT FRANCIS JACKSON , ICI LTD
IPC分类号： C09D5/14 , C11D1/00
摘要： 574,408. Proofing permeable materials. BAIRD, W., EVANS, J. G. JACKSON. J. R. F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 11, 1944, No. 6617. [Class 140] Textiles such as cotton fabric or paper are preserved from attack by biological agencies by application thereto of a solution of zinc dimethyldithiocarbamate in aqueous ammonia and drying under conditions whereby water and ammonia are removed by volatilization. A heat treatment such as steaming at 100-134‹C. may be applied before drying.

5. 发明专利

GB501288A Process of treating cellulosic textile materials 未知
公开(公告)号：GB501288A
公开(公告)日：1939-02-23
申请号：GB2311937
申请日：1937-08-23
申请人： JOHN GWYNANT EVANS , ICI LTD
IPC分类号： D06M13/322 , D06M15/423
摘要： 501,288. Treating textiles. EVANS, J. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 23, 1937, No. 23119. [Class 15 (ii)] Cellulosic textile material is rendered soft, crease-resistant and water-repellent by impregnating with a solution or suspension of one or more of the quaternary ammonium salts described in Specifications 466,817, 477,991, 495,025, 497,856, and 498,287, before, after or simultaneously with a treatment with resin components or resin precondensate, followed by drying and heating to decompose the quaternary salt and insolubilize the resin. The quaternary salt and the resin or resin components may be applied separately, and the material dried and baked after each impregnation. In examples: (1) to a ureaaldehyde precondensate is added an aqueous emulsion of stearimidomethylpyridinium chloride containing ammonium dihydrogen phosphate ; spun viscose is impregnated in the solution, squeezed, dried and heated to 140‹ C. for 3 mins.; superfluous resin is removed by soap. (2 and 3) A mercerized cotton fabric is treated as in example 1 except that the quaternary salt used is stearamidomethylpyridinium chloride, or stearylureidomethylpyridinium chloride. (4) A viscose fabric is impregnated with a solution of stearamidomethylpyridinium nitrate and sodium acetate, dried, impregnated with a urea-aldehyde precondensate, squeezed, dried, heated to 150‹ C. for 1¢ mins., washed and dried. (5) A viscose crape fabric is impregnated with a ureaformaldehyde precondensate, dried, heated to 140‹ C. for 3 mins., padded with a solution containing N-carbomethoxyheptadecylaminomethylpyridinium chloride and hexamethylene tetramine, dried and heated for 5 mins. at 40‹ C., washed and dried. Specifications 291,474, 304,900, [both in Class 2 (iii)], 431,703, and 449,243 also are referred to.

6. 发明专利

GB493111A Manufacture of improved filaments, threads, foils or sheets of cellulose esters or ethers 未知
公开(公告)号：GB493111A
公开(公告)日：1938-09-30
申请号：GB921337
申请日：1937-03-31
申请人： JOHN GWYNANT EVANS , ARNOLD SHEPHERDSON , ICI LTD
IPC分类号： D01F2/28
摘要： Water repellant filaments, foils, &c. of cellulose esters or ethers are produced by incorporating in the spinning solution certain quaternary ammonium salts and subjecting the spun filaments of foils to a heat treatment above 70 DEG C. Wet or dry spinning processes may be employed. The quaternary ammonium salts are those of the general formula where R stands for a saturated or unsaturated aliphatic hydrocarbon radical having not less than 12 carbon atoms, or for the radical R1-CO where R1 is a saturated or unsaturated aliphatic hydrocarbon radical having not less than 12 carbon atoms; X stands for oxygen, sulphur, or an imino or substituted imino group; the group stands for a tertiary aliphatic base or a heterocyclic base such as pyridine or quinoline; and Y stands for the monovalent anion of an acid for example hydrochloric, hydrobromic, nitric, sulphuric, p-toluenesulphonic, or oxalic acids. The imino or substituted imino group may be alkylimino such as methylimino or ethyl-imino; acylimido such as acetimido; aralkylimino such as benzylimino; arylimino such as anilino; or the residue of a carbamate such as methyl or ethyl carbamate. Quaternary ammonium salts specified are octadecyloxymethylpyridinium chloride, octadecyloxymethylpyridinium bromide, octadecyloxymethylpyridinium iodide, octadecyloxymethylpyridinium nitrate, octadecyloxymethylpyridinium acid oxalate, cetyloxymethylpyridinium pyridine sulphite, cetylthiomethyl pyridinium bromide, octadecyloxymethyltriethylammonium chloride, octadecyloxymethyltriethanolammonium chloride, octadecyloxymethylquinolinium chloride; pyridinium derivatives from the chloromethyl ethers of sperm oil alcohols, lauramidomethylpyridinium chloride, stearamidomethylpyridinium chloride, stearamidomethylpyridinium bromide, stearamidomethylpyridinium nitrate, stearamidomethylpyridinium pyridine sulphite, stearamidomethylpyridinium m-nitrobenzene sulphonate, N - methyl - stearamidomethylpyridinium chloride, stearanilidomethylpyridinium chloride, oleylamidomethylpyridinium chloride, N - carbo - methoxyheptadecylaminomethylpyridinium chloride, p-cetyl-phenylaminomethylpyridinium pyridine sulphite, and p - stear - amidophenylaminomethylpyridinium pyridine sulphite, and cetylthiomethylpyridinium chloride. Quaternary ammonium salts in which X stands for oxygen, imino or substituted imino groups may be made by the methods described in Specifications 390,553, 394,196, 471,130, 475,119, and 475,170. Quaternary ammonium salts in which X stands for sulphur may be made from the corresponding mercaptans and tertiary amines, e.g. cetylthiomethylpyridinium chloride may be made by reacting cetyl mercaptan with formaldehyde and hydrogen chloride and combining the cetyl chloromethyl sulphide so obtained with pyridine. Examples refer to the production of filaments from cellulose acetate, cellulose formate and ethyl cellulose and to heat treatments at 120-150 DEG C.

7. 发明专利

GB436076A Improvements in stripping dyed textiles 未知
公开(公告)号：GB436076A
公开(公告)日：1935-10-02
申请号：GB348534
申请日：1934-02-02
申请人： ICI LTD , CHARLES DUNBAR , JOHN GWYNANT EVANS , LESLIE GORDON LAWRIE
IPC分类号： D06P5/13
摘要： Textiles dyed with azoic colours are stripped by a modification of the process described in the parent Specification which comprises including in the stripping bath a small proportion, e.g. 0,05 per cent by weight of anthraquinone, a substituted anthraquinone carrying as substituents hydroxyl, halogen, amino or alkyl groups, or a combination of such groups. It is stated that the process can be carried out at a lower temperature, and that it is particularly suitable for stripping azoic colours from natural silk. In examples: (1) Cotton yarn dyed with 4-chloro-2-aminotoluene --> (on the fibre) diacetoacetictoluidide is treated for 30 minutes at 85--90 DEG C. in 40 times its weight of an aqueous solution containing caustic soda, sodium hydrosulphite, and trimethylcetylammonium bromide having dispersed in it powdered anthraquinone. (2) Cotton yarn dyed with 5-chloro-2-aminotoluene --> (on the fibre) Brenthol AS is similarly stripped, whereas if the anthraquinone is omitted, a pale red shade remains. (3) Cotton yarn dyed with 5-nitro-o-anisidine --> (on the fibre) Brenthol BT is similarly stripped. (4) Yarn dyed with 5-nitro-o-anisidine --> (on the fibre) Brenthol AT is similarly stripped. (5) Cotton yarn dyed with dianisidine \sy (on the fibre) Brenthol BA is similarly stripped. (6) Pure silk yarn dyed with fast Red KB base --> (on the fibre) Brenthol BA is similarly stripped. The yarn may be given an after treatment with hydrogen peroxide. Specifications 294,582, [Class 2 (iii)], 392,763, and 379,396 are referred to.

8. 发明专利

GB422556A Stripping dyed textiles 未知
公开(公告)号：GB422556A
公开(公告)日：1935-01-07
申请号：GB1048633
申请日：1933-04-07
申请人： ICI LTD , JOHN GWYNANT EVANS , LESLIE GORDON LAWRIE
IPC分类号： D06P5/13
摘要： Dyeings with alizarine or basic colours are stripped by treating the dyed material with an alkaline, acid or neutral liquor containing either (a) an amine, free from hydroxy groups, esterified or etherified hydroxy groups or heterocyclic oxygen, having attached directly or indirectly to the nitrogen atom a straight or branched chain of not less than 10 carbon atoms, or (b) a salt of such an amine, or (c) a quaternary ammonium salt, free from hydroxy groups, derived from a long chain (i.e. of not less than 10 carbon atoms) fatty acid monoamide of an arylene or alkylene diamine, or (d) a quaternary ammonium salt, free from hydroxy groups, having attached directly to the pentavalent nitrogen atom an unbroken chain of not less than 10 carbon atoms. The stripping may be effected in presence or absence of a reducing agent and/or soap or other detergent. Vegetable fibres are advantageously subjected to a supplementary chlorine bleach and animal fibres to a supplementary peroxide bleach. Specified amines and amine salts are b -diethylaminoethyloleyl amide, its acetate and hydrochloride, heptadecylamine and its hydrochloride. Specified quaternary ammonium salts are octadecyl- and cetyl-pyridinium bromides (cf. Specification 379,396), cetylpyridinium chloride (cf. Specification 392,763), octadecyltrimethylammonium iodide, cetyltrimethyl- and cetyltriethyl-ammonium bromides, cetyltrimethylammonium iodide, p - stearoamidophenyltrimethylammonium sulphate and b -stearoamidoethyldiethylamine methosulphate (cf. Specification 294,582, [Class 2 (iii)]). The following examples are specified. (1) Cotton dyed with turkey red is stripped to a pale brown by treatment for 30 minutes with a boiling dilute caustic soda solution containing sodium hydrosulphite and cetyl trimethylammonium bromide and is thereafter cleared to a white by treatment for 15--30 minutes at room temperature in dilute sodium hypochlorite. (2) Wool dyed a full red with alizarine on an aluminium mordant is stripped to a very pale pink by treatment for 20 minutes with a boiling dilute acetic acid solution containing Formosul and cetyltrimethylammonium bromide. (3) Cotton dyed with Auramine O on a tannin mordant is completely stripped by treatment for 30 minutes with a boiling dilute aqueous solution of octadecylpyridinium bromide. (4) Cotton dyed with Rhodamine 6GBS on a tannin mordant is stripped to a very pale pink by treatment for 30 minutes with a boiling dilute aqueous solution of cetyltrimethylammonium bromide. (5) Cotton dyed with Magenta P on a tannin mordant is stripped to a very weak bluish red by treatment for 30 minutes with a boiling dilute aqueous solution of the acetate of b -diethylaminoethyloleylamide. (6) Natural silk dyed with Acronol yellow T is stripped to a very pale yellow by treatment for 30 minutes with a boiling dilute aqueous solution of cetyltrimethylammonium bromide. (7) Natural silk dyed with Auramine O is almost completely stripped by treatment as in (6). Specification 400,239 also is referred to. Octadecyltrimethylammonium iodide is obtained by combining octadecyl iodide with trimethylamine.

9. 发明专利

GB518072A Treatment of textile materials 未知
公开(公告)号：GB518072A
公开(公告)日：1940-02-16
申请号：GB2111038
申请日：1938-07-15
申请人： JOHN GWYNANT EVANS , RICHARD JAMES SMITH , ICI LTD
IPC分类号： D06M15/423
摘要： 518,072. Treating textiles with liquids ; cellulose derivative solutions. EVANS, J. G., SMITH, R. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 15, 1938, No. 21110. [Classes 2 (ii) and 15 (ii)] Textile materials are sized or finished with water-soluble cellulose derivatives, e.g. watersoluble cellulose ethers and simultaneously or subsequently with a water-soluble condensation product of formaldehyde and urea or thiourea, e.g. monomethylol urea or dimethylol urea, or a derivative thereof such as the dimethyl ether of dimethylol urea. The materials are then subjected to a short heat treatment, e.g. at a temperature between 110‹ and 180‹C. The finishes produced by the application of the water-cellulose derivatives are rendered more resistant to water or other aqueous treatment liquids, by treatment with the condensation product. The water-soluble cellulose derivative may be applied by immersion of the textile, or by padding methods. After this treatment the textile while still wet or after drying may be treated with an aqueous solution of the watersoluble formaldehyde-urea compound. It is then dried and subjected to a short heat treatment. Alternatively the textile may be treated. with a solution containing both the cellulose derivative and the water-soluble condensation product. The cellulose derivative may be a water-soluble methyl, ethyl, or methyl ethyl cellulose ether. Textiles of cotton, cellulose ester or ether fibres, animal fibres, or artificial fibres of protein origin may be treated. A spun viscose fabric is padded with an aqueous solution of methyl cellulose, squeezed, and dried, then padded with an aqueous solution of dimethylol urea. It is again dried and then heated to 150‹C. The fabric has a full linen-like handle which is not removed by usual laundering operations. Cotton casement fabric is treated with an aqueous solution of ethyl cellulose and then with an aqueous solution of dimethylol urea. Cotton limbrick fabric is treated with an aqueous solution containing methyl ethyl cellulose and dimethylol urea, and a small amount of ammonium dihydrogen phosphate. The fabric is squeezed, dried and heated to 150 degrees. The fabric has a linen-like handle resistant to laundering. Specifications 452,506 and 469,391 are referred to. The Provisional Specification describes also the use of condensation products of formaldehyde with acetone, and of formaldehyde itself. Specifications 19,087/09, [Class 2 (ii)], and 361,597 also are referred to.

10. 发明专利

GB500110A Dyeing of cellulosic material 未知
公开(公告)号：GB500110A
公开(公告)日：1939-01-30
申请号：GB1824137
申请日：1937-06-30
申请人： JOHN GWYNANT EVANS , HENRY ALFRED PIGGOTT , REGINALD JOHN WILLIAM REYNOLDS , JOHN DONALD ROSE , ERIC EVERARD WALKER , ICI LTD
IPC分类号： D06P1/56 , D06P1/66
摘要： 500,110. Dyeing cellulosic materials. EVANS, J. G., PIGGOTT, H. A., REYNOLDS, R. J. W., ROSE, J. D., WALKER, E. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 30, 1937, No. 18241. [Classes 2 (iii) and 16 (ii)] To increase the affinity of cellulosic material for acid wool or acid chrome dyes it is treated with formaldehyde or a substance yielding formaldehyde and, at a relatively low temperature, preferably room temperature, with a solution of a compound containing (A) a substituted ammonium group free from any aliphatic substituent with more than 8 carbon atoms and (B) one of the groups -CO.NH2, -NH.CO.NH2 or -O.CO.NH2, and the material, so treated, is heated to 100-140‹ C. Alternatively, a preformed condensation product of formaldehyde with the compound may be used. The groups (A) and (B) may be linked by one of the groups -CH2-, -CH2. CO.NH-, -CH2.CH2.NH-, -CH2.CH2.O-, -C6H4.NH- or -CH2.CH2-. Some of the compounds suitable are obtainable by the processes described in Specifications 497,043, 497,368, and 497,485. Specified cellulosic materials are cotton, linen, jute, regenerated cellulose fibres or films, paper and cardboard. Regenerated cellulose fibres so treated may be dyed in admixture with wool. The impregnation is preferably effected in presence of an acid, e.g. boric, acetic, tartaric, lactic or tannic acid, or of an acid-yielding substance, e.g. ammonium dihydrogen phosphate, chloride or thiocyanate or sodium bisulphite and the heat treatment may be effected in presence of an acid vapour. In examples: (1) cotton limbric is impregnated with an aqueous solution at room temperature containing ammonium dihydrogen phosphate and the condensation product of formaldehyde with #-ureidoethyl pyridinium chloride, squeezed, dried rapidly in warm air at 60‹ C., heated for 5 minutes at 120‹ C., rinsed and dyed with Azo geranine 2G or Fast acid violet A2R; (2) a viscose rayon fabric is impregnated with a cold aqueous solution containing ammonium dihydrogen phosphate, #-ureidoethylpyridinium chloride, and formaldehyde, squeezed and dried as in (1), heated for ¢ hour at 140‹ C. and dyed with acid wool dyestuffs; (3) viscose rayon stockinette is impregriated with a cold aqueous solution containing ammonium dihydrogen phosphate, carbamylmethylpyridinium chloride or trimethyl-p-ureidophenylammonium methosulphate and formaldehyde, further treated as in (2) and dyed with acid wool or acid chrome dyestuffs; the heating at 140‹ C. may be replaced by a steaming at atmospheric or slightly increased pressure; (4) viscose rayon fabric is impregnated with an aqueous solution of hydroxymethylcarbamylmethylpyridinium chloride, squeezed, heated for ¢ hour at 140‹ C. and dyed with Tartrazine N; (5) viscose staple fibre is impregnated with an aqueous solution containing ammonium dihydrogen phosphate, carbamylmethylpyridinium chloride and formaldehyde, squeezed, dried in hot air at 60‹ C., heated for ¢ hour at 140‹ C. and dyed with Orange G or Solochrome black T ; (6) viscose fabric is impregnated as in (5) using less formaldehyde, squeezed, heated for ¢ hour at 140‹ C. and dyed with Coomassie navy blue 2RNX.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式