CN1687518A - Method for dyeing tussah silk - Google Patents
Method for dyeing tussah silk Download PDFInfo
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- CN1687518A CN1687518A CN 200510046237 CN200510046237A CN1687518A CN 1687518 A CN1687518 A CN 1687518A CN 200510046237 CN200510046237 CN 200510046237 CN 200510046237 A CN200510046237 A CN 200510046237A CN 1687518 A CN1687518 A CN 1687518A
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Abstract
This is a tussah silk dyeing method. Pretreat tussah silk with hydrogen peroxide solution at 95 - 98 Deg. C, then add levelling agent, slow-dyeing agent and BF reactive dyes at the bathing rate of 20 - 25. Adjust pH to 3 - 4 with acetic acid, dye for 60 - 70 minutes at 90 - 95 Deg. C, and have color-fixing process with sodium carbonate. Then water washing, soap boiling, hot water washing, cold water washing, dehydrating and drying. Color threads are weaved into silks according to conventional method. Test the firming intensity of the silk fabric, its water-washing-proof and sweat-proof color firming intensity can get to 4 - 5 rank, and its frictional and soaping firming intensity can get to 4 rank, which are both over the first-rate product index of national standard. The remaining formaldehyde quantity of fabric is no more than 20 milligram per kilogram that is just a quarter of the standard index. Its products have vivid luster and are full.
Description
Technical field: the present invention relates to a kind of fiber dyeing method, relate to the reactive dyes dyeing method of a kind of tussah silk specifically.
Background technology: tussah silk is a kind of natural fabric of top grade, be subjected to people's favor deeply, China is tussah silk output big country, China's tussah silk output accounts for the 70-80% of Gross World Product, though the processing of tussah silk has history remote, but because the color and luster of tussah silk self is dark yellow, crease easily, water stain defective is arranged, make the requirement of the inaccessible high-grade fabric of tussah silk textiles, DYED FABRICS especially, its bright-colored degree is poor, and common acid dyeing, dyefastness is low, and fastness to washing only can reach the 3-4 level, owing to adopt the color-fixing agent that contains formaldehyde when fixation, removing residue formaldehyde content is higher on its fabric, for improving dyefastness and reduce content of formaldehyde, have in recent years the research report that adopts REACTIVE DYES to carry out tussah silk dyeing, Wan Fadong, Xu Longshu, the pre-test of SN type REACTIVE DYES tussah silk piece goods, Liaoning silk (J) 1990.000 (004)-41-43.The colouring method of tussah silk of the present invention gives the oxidation bleaching processing of coming unstuck before dyeing, BF type reactive dyes dyeing method has not yet to see report.
Summary of the invention: the objective of the invention is to improve tussah silk dyestuff dye-uptake and dyefastness, reduce the content of formaldehyde of fabric.For achieving the above object, the technical solution adopted in the present invention is: the colouring method of a kind of tussah silk, it is to carry out according to the following steps: 1, give processing: bath raio 1: 20-25, the mass ratio of tussah silk and 25% hydrogen peroxide is 6～8: 1, pH value of solution is controlled at 9.5～10.5, soaked 20-40 minute down at 95～98 ℃, be neutrality, dry with hot wash to washing lotion after bleaching is come unstuck; 2, dyeing: will give tussah silk after the processing by bath raio 1: 25～35 mass/volume, the preparation dye bath adds levelling agent 0.06～0.08g/L, REACTIVE DYES 1.5～2.5g/L, with acid for adjusting pH to 3～4, add retarding agents 15～30g/L, be warming up to 80～90 ℃ of insulation dyeing 60～70 minutes; 3, fixation: bleed off dye liquor, add clear water, transfer to pH9.5～10.5,85～90 ℃ of fixation 50～60 minutes with alkali by bath raio 1: 20～25; 4, washing: bleed off fixation liquid, add clear water by bath raio 1: 25～30 and washed 30～50 minutes, wash twice; 5, soap boiling: add clear water by bath raio 1: 20～25, add soap powder 0.3～0.5g/L, bleeding agent 0.003～0.004g/L, 85～90 ℃, 15～30 minutes; 6, carry out hot water wash according to a conventional method, cold wash to washing lotion is clarified; 7, dewater according to a conventional method, dry.
The colouring method of tussah silk of the present invention, for improving dye-uptake, before dyeing, tussah silk is given the oxidation bleaching processing of coming unstuck, make the tussah silk true qualities one-step removal silk gum of going forward side by side that shoals, help dyeing, REACTIVE DYES used in the present invention is a commodity BF type REACTIVE DYES, warm type reactive dyes with double active group, processes during BF type REACTIVE DYES belongs to, have a chloro-s-triazine group and vinyl sulfone(Remzaol group on this kind molecular structure of dye, less to sensitiveness such as bath raio, dyeing temperature, salt, alkali and times, have good dyeing reappearance.
Tussah silk is an azelon, contains-NH
2,-COOH isoreactivity group, at certain pH, the active group of azelon can make firm being combined on the silk tussah fibre of dye molecule with the active group reaction of BF type REACTIVE DYES under the temperature, so color fastness to washing is greatly improved.Under different pH value conditions, combine with multi-form with REACTIVE DYES, under different pH condition, the silk tinctorial yield differs bigger, at pH is 3 o'clock, tinctorial yield is the highest, the dyestuff dye-uptake can reach more than 90%, at pH is 7 o'clock, dye-uptake is minimum, when pH improves, dye-uptake improves, but ash can appear in silk in alkalescence hinders, thereby should not under high pH condition, dye, be advisable with pH3-4, regulating pH can be with inorganic acid or organic acid, with acetic acid and sodium acetate is commonly used, dyeing temperature is to finish the necessary condition that the dye activity group combines with azelon group on the silk, and temperature is lower in the K/S of silk tinctorial yield below 80 ℃ value, generally between 11～20, when temperature is brought up to 80～90 ℃, the K/S value is between 21～28, and in the time of 100 ℃, the K/S value increases little, and hot conditions easily causes the fibroin yellowing, scratch, therefore, dyeing temperature is suitable with 80～90 ℃, dyeing time is another important factor in order of dyeing, not only influence the amount of dying fiber on the dyestuff, and also can exert an influence, after reaching dyeing equilibrium the uniformity of dyeing, even the amount of dying can not increase yet on the time expand fiber again, according to test, dyeing time was since 30 minutes, and the K/S value increases in time and increases, when reaching, dyeing time 60-70 minute K/S value be up to 26～28, thereafter time expand K/S value is constant again, illustrates dyeing time 60-70 minute, and dyeing reaches balance.For making even dyeing, prevent dyeing flower, usually add retarding agents and levelling agent in molten dying, retarding agents generally uses salt, and glauber salt, salt are electrolyte, below the silk fiber isoelectric point, Cl
-Ion is at first adsorbed by silk fiber, the electropositive of the silk fiber that neutralized, Na
+Hydrated sheath with it is partly adsorbed subsequently, promote the expanded of silk fiber, help diffusion and the level dyeing of dyestuff on silk fiber, have short dying with level dyeing and do usefulness, test shows, does not add salt, the white core phenomenon of dyeing silk is serious under similarity condition, white core phenomenon was lighter when the salt consumption was 15～30g/L, and the silk that dyes is bright in colour, full.Adding levelling agent also is for making the even dyeing unanimity, alleviate white core phenomenon, it is commonly used with fatty alcohol polyethenoxy ether class that levelling agent uses non-ionic surface active agent usually, the average octadecanol polyoxyethylene ether that adds as of commodity is the levelling agent of using always, other OP class alkylphenol polyoxyethylene also can be used, in dye bath, do not add levelling agent, tinctorial yield K/S value is lower, only be 16～17, and white core phenomenon is serious, when pressing 0.06～0.08g/L, add levelling agent K/S value and can reach 26～28, and white core phenomenon is lighter, add levelling agent and drop to below 18 above 0.1g/L tinctorial yield K/S value, therefore, the levelling agent consumption is suitable with 0.06～0.08g/L.After dyeing finishes, need carry out fixation, the general common commodity in use color fixing agent Y of ACID DYES fixation is the dicyandiamide formaldehyde resin, thereby after the fixation on silk residual formaldehyde amount higher, the requirement that needs abundant washing just can be up to state standards, tussah silk dyeing method of the present invention, the dyeing back adopts soda ash to carry out fixation treatment, and the soda ash consumption is as the criterion to regulate pH9.5～10.5, under 85～90 ℃, carried out fixation 60～70 minutes, wash soap boiling, hot water wash after the fixation, cold wash, dry, oven dry obtains chromatic thread.
The colouring method of tussah silk of the present invention to the evaluation of Color, is according to a conventional method the look silk to be woven into fabric, gets the fabric sample then and measures.
Tinctorial yield: the absorbance R value under the maximum absorption wavelength λ max that measures DYED FABRICS on the msc-1 multiple light courcess spectrophotometric color measurement instrument, but calculate spun silk surface tinctorial yield by storehouse Bel Ka-Suo formula
K/S＝(1-R)
2/2R
Dyefastness is measured:
Color fastness to washing, colour fastness to perspiration are pressed the GB/T9127-88 standard test.Crock fastness is pressed GB/3920 and is measured.
Soaping fastness is measured, and clip sample 6cm * 6cm, toothed oak spun silk fabric respectively be sample half, are listed in the sample front, become one group all around with suturing with thread management.The soap flakes of fatty acids 80% are made into the liquid of soaping of 5g/L with distilled water; bath raio 1: 50; ready sample is added in 80 ℃ the liquid of soaping, be incubated 30 minutes, when 10 minutes and 20 minutes, sample are stirred up and down 10 times; sample takes out the back earlier with about 40 ℃ distillation washing; wash extruding slightly, separately sample again with cold distilled water; in room temperature and drying below 60 ℃, the standard of pressing is graded.
Removing residue formaldehyde content: press GB/18401-2001 and measure, according to the method described above, tussah silk textiles through the reactive dyeing of BF type, the variable color of color fastness to washing, staining all reach the 4-5 level, than the primes index raising 1-2 level of standard code, crock fastness reaches 4 grades, soaping fastness reaches 4 grades, fabric removing residue formaldehyde content≤20mg/Kg, than standard code≤75mg/Kg reduces significantly.
The beneficial effect of tussah silk colouring method of the present invention is: adopt BF type REACTIVE DYES to dye tussah silk, can obtain lovely luster, full look silk, the woven fabric of its look silk is carried out the color fastness to washing detection can reach the 4-5 level, improve the 1-2 level than usual method dyeing COLOR FASTNESS, its colour fastness to perspiration also can reach the 4-5 level, basically solved the not high defective of tussah silk dyefastness, moreover fixation do not use the color-fixing agent that contains formaldehyde, thereby fabric removing residue formaldehyde amount is low, only is 30% of standard volume, eliminated the infringement of formaldehyde to human body, its technical process of this method is easy to control, and no specific (special) requirements is suitable for all kinds printing and dyeing mill and adopts.
The specific embodiment:
Dying material: hydrogen peroxide: industry 25%
Reactive scarlet BF-2GF intensity 200%
Reactive yellow BF-D3R intensity 150%
Reactive dark blue BF-2GL intensity 150%
Peregal
Main component: octadecanol polyoxyethylene ether
Controlling index: cloud point (1% active matter in 10% calcium chloride, ℃) 〉=75, diffusivity (being standard items %) 100 ± 10, pH (1% aqueous solution) 6.0～8.0 is mixed with ω, 4% salt: industry before the use
Acetic acid: ω, 36%
Sodium acetate: industry
Soda ash: industry
Soap powder: industry
Equipment: dip dyeing groove
Embodiment 1:
Calculate by dying the 5Kg spun silk
1, give processing: bath raio added entry 125L by 1: 25 in treatment trough, added hydrogen peroxide 625g, and tussah silk is put into treatment trough, was warming up to 95 ℃, flooded 30 minutes, and be neutral with 70～80 ℃ of hot water wash to washing lotion then, dry; 2, dyeing: bath raio: 1: 30, in the dipping staining bath, add 150L water, add 4% peregal 225g, reactive scarlet BF-2GF225g, dyestuff gives use earlier water-soluble, then with acetic acid reconcile to pH be 3, adding salt 3000g, stirring makes it whole dissolvings, spun silk soaks into warm water, and dye bath is warming up to 40 ℃, puts into spun silk, be warming up to 85 ℃ of dye bath temperature maintenance at 85～90 ℃ with 2 ℃/minute, contaminated 60 minutes.3, fixation: get rid of dye liquor, put into clear water, be warming up to 85 ℃, regulate pH9.5～10.5 with soda ash, fixation 60 minutes is carried out cold wash then.4, soap boiling is pressed bath raio and is added clear water 100L at 1: 20, and add soap powder 50g, peregal 10g and be warming up to 90 ℃, soap boiling 30 minutes, cold wash to washing lotion is clarified, and dries then, and oven dry gets chromatic thread.Chromatic thread is woven into silk according to a conventional method, and detects by aforementioned detection method, and test result is as follows:
| Project | The K/S value | Color fastness to washing | Colour fastness to perspiration | Soaping fastness (level) | Crock fastness (level) | Content of formaldehyde mg/Kg | ||
| Variable color | Staining | Variable color | Staining | |||||
| The result | ??26.79 | ??4-5 | ??4-5 | ??4-5 | ??4-5 | ??4 | ??4 | ??≤20 |
Embodiment 2:
Calculate by dying the 3Kg tussah schappe (silk)
1, give processing: bath raio added entry 75L by 1: 25 in treatment trough, added hydrogen peroxide 500g, transferred pH to 10.5 with sodium carbonate, and tussah silk is put into treatment trough, was warming up to 98 ℃, flooded 30 minutes, and be neutral with 70～80 ℃ of hot water wash to washing lotion then, dry; 2, dyeing: bath raio: 1: 25, in the dipping staining bath, add 75L water, add 4% peregal 120g, reactive yellow BF-D3R187.5g, dyestuff give and use earlier water-soluble, then with acetic acid reconcile to pH be 3, add salt 1500g, stir and make it whole dissolvings, spun silk soaks into warm water, dye bath is warming up to 40 ℃, put into spun silk, be warming up to 85 ℃ of dye bath temperature maintenance at 85～90 ℃ with 2 ℃/minute, contaminated 70 minutes, 3, fixation: get rid of dye liquor, put into clear water, be warming up to 85 ℃, regulate pH9.5～10.5 with soda ash, fixation 50 minutes is carried out cold wash then.4, soap boiling is pressed bath raio and is added clear water 60L at 1: 20, and add soap powder 24g peregal 10g and be warming up to 90 ℃, soap boiling 30 minutes, cold wash to washing lotion is clarified, and dries then, and oven dry gets chromatic thread.Chromatic thread is woven into silk according to a conventional method, and detects by aforementioned detection method, and test result is as follows:
| Project | The K/S value | Color fastness to washing | Colour fastness to perspiration | Soaping fastness (level) | Crock fastness (level) | Content of formaldehyde mg/Kg | ||
| Variable color | Staining | Variable color | Staining | |||||
| The result | ??27.60 | ??4-5 | ??4-5 | ??4-5 | ??4-5 | ??4 | ??4 | ??≤20 |
Embodiment 3:
Calculate by dying the 3Kg tussah schappe (silk)
1, give processing: bath raio added entry 150L by 1: 20 in treatment trough, added hydrogen peroxide 400g, transferred pH to 10.5 with sodium carbonate, tussah silk is put into treatment trough be warming up to 95 ℃, flooded 30 minutes, used 70～80 ℃ of hot water wash to washing lotion neutrality then, dried; 2, dyeing: bath raio: 1: 28, in the dipping staining bath, add 84L water, add 4% peregal 151.2g, reactive dark blue BF-2GL168g, dyestuff gives use earlier water-soluble, then with acetic acid reconcile to pH be 3, adding salt 200g, stirring makes it whole dissolvings, spun silk soaks into warm water, and dye bath is warming up to 40 ℃, puts into spun silk, be warming up to 85 ℃ of dye bath temperature maintenance at 85～90 ℃ with 2 ℃/minute, contaminated 70 minutes.3, fixation: get rid of dye liquor, put into clear water, be warming up to 85 ℃, regulate pH9.5～10.5 with soda ash, fixation 60 minutes is carried out cold wash then according to a conventional method.4, soap boiling is pressed bath raio and is added clear water 100L at 1: 20, adds soap powder 40g peregal 10g and is warming up to 90 ℃, dries then, and oven dry gets chromatic thread.Chromatic thread is woven into silk according to a conventional method, and detects by aforementioned detection method, and test result is as follows:
| Project | The K/S value | Color fastness to washing | Colour fastness to perspiration | Soaping fastness (level) | Crock fastness (level) | Content of formaldehyde mg/Kg | ||
| Variable color | Staining | Variable color | Staining | |||||
| The result | ??27.00 | ??4-5 | ??4-5 | ??4-5 | ??4-5 | ??4 | ??4 | ??≤20 |
Embodiment 4:
Calculate by dying the 3Kg tussah schappe (silk)
1, give processing: bath raio added entry 60L by 1: 20 in treatment trough, added hydrogen peroxide 560g, transfer pH to 10.5 with sodium carbonate, tussah silk is put into the treatment trough adding be warming up to 95 ℃, flooded 30 minutes, be neutral with 70～80 ℃ of hot water wash to washing lotion then, dry; 2, dyeing: bath raio: 1: 35, in the dipping staining bath, add 105L water, add 4% peregal 210g, reactive scarlet BF-2GF126g, reactive yellow BF-D3R115.5g dyestuff gives use earlier water-soluble, then with acetic acid reconcile to pH be 3, adding salt 3150g, stirring makes it whole dissolvings, spun silk soaks into warm water, and dye bath is warming up to 40 ℃, puts into spun silk, be warming up to 85 ℃ of dye bath temperature maintenance at 85～90 ℃ with 2 ℃/minute, contaminated 70 minutes.3, fixation: get rid of dye liquor, put into clear water, be warming up to 85 ℃, transfer pH9.5～10.5 with soda ash, fixation 60 minutes is carried out cold wash then according to a conventional method.4, soap boiling is pressed bath raio and is added clear water 100L at 1: 20, adds soap powder 28g peregal 8g and is warming up to 90 ℃, dries then, and oven dry gets chromatic thread.Chromatic thread is woven into silk according to a conventional method, and detects by aforementioned detection method, and test result is as follows:
| Project | The K/S value | Color fastness to washing | Colour fastness to perspiration | Soaping fastness (level) | Crock fastness (level) | Content of formaldehyde mg/Kg | ||
| Variable color | Staining | Variable color | Staining | |||||
| The result | ??26.06 | ??4-5 | ??4-5 | ??4-5 | ??4-5 | ??4 | ??4 | ??≤20 |
Claims (5)
1, the colouring method of a kind of tussah silk, it is to carry out according to the following steps: 1, give processing: bath raio 1: 20-25, the mass ratio of tussah silk and 25% hydrogen peroxide is 6～8: 1, pH value of solution is controlled at 9.5～10.5, soaked 20-40 minute down at 95～98 ℃, be neutrality, dry with hot wash to washing lotion after bleaching is come unstuck; 2, dyeing: will give tussah silk after the processing by bath raio 1: 25～35 mass/volume, the preparation dye bath adds levelling agent 0.06～0.08g/L, REACTIVE DYES 1.5～2.5g/L, with acid for adjusting pH to 3～4, add retarding agents 15～30g/L, be warming up to 80～90 ℃ of insulation dyeing 60～70 minutes; 3, fixation: bleed off dye liquor, add clear water, transfer to pH9.5～10.5,85～90 ℃ of fixation 50～60 minutes with alkali by bath raio 1: 20～25; 4, washing: bleed off fixation liquid, add clear water by bath raio 1: 25～30 and washed 30～50 minutes, wash twice; 5, soap boiling: add clear water by bath raio 1: 20～25, add soap powder 0.3～0.5g/L, bleeding agent 0.003～0.004g/L, 85～90 ℃, 15～30 minutes; 6, carry out hot water wash according to a conventional method, cold wash to washing lotion is clarified; 7, dewater according to a conventional method, dry.
2, the colouring method of tussah silk according to claim 1 is characterized in that: described REACTIVE DYES is a BF type REACTIVE DYES.
3, the colouring method of tussah silk according to claim 1 is characterized in that: described levelling agent is a nonionic surface active agent.
4, according to the colouring method of claim 1 or 3 described tussah silks, it is characterized in that: described levelling agent is a peregal.
5, the colouring method of tussah silk according to claim 1 is characterized in that: described retarding agents is a salt.
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| CN101260621B (en) * | 2008-04-15 | 2010-06-09 | 达利(中国)有限公司 | Process for cotton reactive dye applying in silk broadcloth dying |
| CN101182665B (en) * | 2007-12-14 | 2010-07-14 | 盖州市暖泉绢纺厂 | Tussah silk and bamboo fibre blended colored cloth and processing method thereof |
| CN102619110A (en) * | 2012-03-31 | 2012-08-01 | 太仓市隆丝达针织时装有限责任公司 | Method for dyeing real-silk clothes |
| CN102767099A (en) * | 2012-07-11 | 2012-11-07 | 浙江理工大学 | Reactive dye ecological dyeing method of silk fabrics |
| CN103437214A (en) * | 2013-07-22 | 2013-12-11 | 苏州三和开泰花线织造有限公司 | Rare earth dying method of silk fabrics |
| CN104233774A (en) * | 2014-09-03 | 2014-12-24 | 苏州印丝特纺织数码科技有限公司 | Bleaching method for silk fabric |
| CN104404796A (en) * | 2014-11-15 | 2015-03-11 | 安徽宏祥丝绸织造有限公司 | Silk dyeing method |
| CN104611865A (en) * | 2014-12-29 | 2015-05-13 | 无锡蚕魅科技有限公司 | Pretreatment process for silk dyeing |
| CN105113072A (en) * | 2015-07-11 | 2015-12-02 | 江苏丹毛纺织股份有限公司 | Production method capable of fully improving tussah silk wool blended yarns |
| CN105415956A (en) * | 2015-12-02 | 2016-03-23 | 安徽金信地首饰有限公司 | Acid dye dyeing process for shells |
| CN106400130A (en) * | 2016-11-29 | 2017-02-15 | 广西立盛茧丝绸有限公司 | Method for improving dyeing and curing rate of natural silk |
| CN107476089A (en) * | 2017-08-14 | 2017-12-15 | 盐城福汇纺织有限公司 | A kind of tussah silk knitting cloth constant temperature dyeing technique |
| CN108796628A (en) * | 2018-07-17 | 2018-11-13 | 舒城县宏通丝业有限公司 | A kind of efficient Degumming method of silk |
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2005
- 2005-04-13 CN CN 200510046237 patent/CN1296554C/en not_active Expired - Fee Related
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| CN101182665B (en) * | 2007-12-14 | 2010-07-14 | 盖州市暖泉绢纺厂 | Tussah silk and bamboo fibre blended colored cloth and processing method thereof |
| CN101260621B (en) * | 2008-04-15 | 2010-06-09 | 达利(中国)有限公司 | Process for cotton reactive dye applying in silk broadcloth dying |
| CN102619110A (en) * | 2012-03-31 | 2012-08-01 | 太仓市隆丝达针织时装有限责任公司 | Method for dyeing real-silk clothes |
| CN102767099A (en) * | 2012-07-11 | 2012-11-07 | 浙江理工大学 | Reactive dye ecological dyeing method of silk fabrics |
| CN103437214A (en) * | 2013-07-22 | 2013-12-11 | 苏州三和开泰花线织造有限公司 | Rare earth dying method of silk fabrics |
| CN104233774B (en) * | 2014-09-03 | 2016-08-24 | 苏州印丝特纺织数码科技有限公司 | A kind of method for bleaching of silk fabric |
| CN104233774A (en) * | 2014-09-03 | 2014-12-24 | 苏州印丝特纺织数码科技有限公司 | Bleaching method for silk fabric |
| CN104404796A (en) * | 2014-11-15 | 2015-03-11 | 安徽宏祥丝绸织造有限公司 | Silk dyeing method |
| CN104611865A (en) * | 2014-12-29 | 2015-05-13 | 无锡蚕魅科技有限公司 | Pretreatment process for silk dyeing |
| CN105113072A (en) * | 2015-07-11 | 2015-12-02 | 江苏丹毛纺织股份有限公司 | Production method capable of fully improving tussah silk wool blended yarns |
| CN105415956A (en) * | 2015-12-02 | 2016-03-23 | 安徽金信地首饰有限公司 | Acid dye dyeing process for shells |
| CN105415956B (en) * | 2015-12-02 | 2018-10-09 | 安徽金信地首饰有限公司 | A kind of shell acid dyeing technique |
| CN106400130A (en) * | 2016-11-29 | 2017-02-15 | 广西立盛茧丝绸有限公司 | Method for improving dyeing and curing rate of natural silk |
| CN107476089A (en) * | 2017-08-14 | 2017-12-15 | 盐城福汇纺织有限公司 | A kind of tussah silk knitting cloth constant temperature dyeing technique |
| CN108796628A (en) * | 2018-07-17 | 2018-11-13 | 舒城县宏通丝业有限公司 | A kind of efficient Degumming method of silk |
| CN109023637A (en) * | 2018-09-20 | 2018-12-18 | 江苏箭鹿毛纺股份有限公司 | Silk wool fancy suiting and preparation method thereof |
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