CN108866780B - Method for dyeing grey linen on polyester-viscose blended weft-knitted fabric - Google Patents
Method for dyeing grey linen on polyester-viscose blended weft-knitted fabric Download PDFInfo
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- CN108866780B CN108866780B CN201811014117.XA CN201811014117A CN108866780B CN 108866780 B CN108866780 B CN 108866780B CN 201811014117 A CN201811014117 A CN 201811014117A CN 108866780 B CN108866780 B CN 108866780B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
- D06P3/8228—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye
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- 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
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- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Abstract
The invention discloses a method for dyeing ramie grey of polyester-viscose blended weft-knitted fabric, which achieves the required effect by dyeing yarns and further dyeing grey cloth woven by the yarns.
Description
Technical Field
The invention relates to the field of textile dyeing, in particular to a method for dyeing ramie grey on polyester-viscose blended weft-knitted fabrics.
Background
The fabric with the gray effect is a fabric with a unique style and a color mixing effect, is popular with consumers, gray cloth covers are full of gray points, the cloth covers are natural, harmonious and elegant in color and luster, the combination of gray and black is coordinated, the gray on the market generally means that the whole cloth cover is in one color tone, and the colors (points, lines and the like) with the same color tone but obviously different shades are uniformly or in different specifications and distributed on the cloth cover with the whole color tone. The polyester fiber fabric has the advantages of good wearability, good strength, good shape retention, good elasticity, smoothness, stiffness, easy washing, quick drying and the like, but has the defects of hard hand feeling, poor touch feeling, soft luster, poor air permeability, poor moisture absorption and the like. The viscose fabric has the advantages of softness, air permeability, moisture absorption, soft luster, comfort in wearing, easiness in dyeing and the like, but has the defects of poor strength, poor elasticity, poor shape retention, easiness in mildew and worm damage and the like. The polyester viscose flax gray fabric not only highlights the elastic shape-keeping style of the polyester, but also has the advantages of softness, moisture absorption and no greasiness of the viscose fabric, has better elasticity and wear resistance under dry and wet conditions, stable size and small shrinkage rate, has the characteristics of stiffness, uneasy crease, easy washing and quick drying, has the characteristics of unique color and luster and elegant style at the same time, and is deeply favored by consumers.
Disclosure of Invention
Based on the condition of the prior art, the invention aims to provide the method for dyeing the polyester-viscose blended weft-knitted fabric into the gray linen color, which has the advantages of good dyeing effect, good color fastness, unique style and low cost.
In order to achieve the technical purpose, the invention adopts the technical scheme that:
a method for dyeing grey linen on polyester-viscose blended weft-knitted fabric comprises the following steps:
(1) putting the yarns required by the polyester-viscose blended yarns into a dye vat, adding water with the temperature of 65-75 ℃ to immerse the yarns, then adding caustic soda to mix, soak and wash for 15-20 min, and discharging the mixed solution after the treatment is finished;
(2) adding water into the dye vat again to immerse the yarns, adding the gray reactive dye, the leveling agent and the penetrating agent, uniformly mixing, carrying out dyeing soaking treatment at 80-90 ℃, and discharging the mixed solution after the treatment is finished, wherein the percentage of the gray reactive dye, the leveling agent and the penetrating agent are 1%, and the percentage of the gray reactive dye, the leveling agent and the penetrating agent are 0.1%;
(3) adding water to immerse the dyed yarn, adding caustic soda for mixing, soaking and washing, and discharging the mixed solution after the treatment is finished;
(4) adding water to immerse the yarn treated in the step (3), then adding acetic acid, adjusting the pH of the mixed system to 6-7, washing the yarn, and taking out the yarn after the treatment is finished;
(5) weaving the yarn processed in the step (4) by a circular knitting machine to obtain a grey fabric with the gram weight of 252g per square meter, wherein the diameter of the circular knitting machine is 34 inches, the number of knitting needles is 28, the total number of the knitting needles is 2976, the number of yarn paths is 84, and the running speed is 18 r/min;
(6) placing the grey cloth in a dye vat, adding water to immerse the fabric, then adding caustic soda for mixing, soaking and washing, and discharging the mixed solution after the treatment is finished;
(7) adding water to immerse the fabric treated in the step (6), then adding acetic acid, adjusting the pH of the mixed system to 6-7, washing the grey fabric, and taking out the grey fabric after the treatment is finished;
(8) and (4) carrying out setting finishing on the grey cloth treated in the step (7) to obtain the polyester-viscose blended weft-knitted fabric dyed with hemp grey.
Further, the yarns in the steps (1) to (4) are all cheese.
Further, the yarns in the steps (1) to (4) comprise polyester yarns and viscose fibers.
Further, in the step (1), the water temperature of the added water is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min.
Further, in the step (2), the temperature of the dyeing soaking treatment is 85 ℃, and the dyeing time is 30 min.
Further, in the step (2), the leveling agent is a fatty alcohol polyoxyethylene ether type leveling agent; the penetrating agent is sodium dodecyl sulfate.
Further, the water temperature of the water added in the step (3) is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min.
Further, the water temperature of the water added in the step (6) is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min.
Further, the setting temperature in the step (8) is 130 ℃, and the setting speed is 20 yards/min.
Further, the color fastness of the polyester-viscose blended weft-knitted fabric dyed with the ramie gray color prepared in the step (8) is level 4.
The spinning steps of the scheme of the invention are briefly as follows:
spinning: blowing → comb bonding → preflex → lap → combing → drawing → roving → spun yarn
The brief parameters of spinning are as follows:
yarn size T/R50/50J 40S.
Clear sticking procedure
Washing: the quantitative ratio is 385g/m, and the hand-pulling speed is 990 r/min.
Sticking: the quantitative ratio is 385g/m, and the hand-pulling speed is 990 r/min.
Combing and bonding:
washing: the basis weight was 4.5g/m and the cylinder/doffer line speed ratio = 0.15.
Sticking: the basis weight was 4.5g/m and the cylinder/doffer line speed ratio = 0.15.
Pre-coalescence
Washing: the ration is 4.7g/m, the roller gauge is 10 multiplied by 12 multiplied by 14, the back traction is 1.0, the front roller speed is 1500r/min, and the number of the combined rollers is 8.
Sticking: the ration is 4.7g/m, the roller gauge is 10 multiplied by 12, the back traction is 1.0, the front roller speed is 1500r/min, and the number of the combined rollers is 8.
Strip coil
Washing: the length of the small roll was 50m, the quantitative ratio was 12/m, and the total number was 20.
Sticking: the length of the small roll was 50m, the quantitative ratio was 12/m, and the total number was 20.
Combing
Washing: the ration is 4.8g/m, the actual drafting is 118, the number of the combined roots is 4, the viscosity dropping rate is 16%, the cylinder speed is 220r/min, and the carding gauge is 0.5.
Sticking: the ration is 4.8g/m, the actual drafting is 120, the number of the combined roots is 4, the viscosity dropping rate is 16%, the cylinder speed is 230r/min, and the carding gauge is 0.5.
Mixing and merging
The ration is 4.7g/m, the roller gauge is 10 multiplied by 12 multiplied by 9, the back stretching multiple is 1.035, the front roller speed is 1434r/min, and the number of the combined roots is 8.
Rough yarn
The quantitative determination was 4.712g/10m, the actual draft was 30.12, the twist was 5.876 twists/10 cm, and the spindle speed was 1000.
Spun yarn
Yarn gauge 14.5g/km, actual draft 30,12, twist 330 twists/10 cm, spindle speed 15341.2.
When the polyester-viscose staple fibers are blended, the blending is carried out in a clear opening process or a drawing process, the mixing effect is influenced when a certain process is mixed, if the mixing is carried out in the clear opening process, the blended yarns are mixed uniformly, the terylene does not eat color when the polyester-viscose raw materials are dyed in the later period, the whole yarn has a uniform black and white hemp grey effect, and the woven cloth cover effect is that the hemp grey point benefit is uniformly distributed on the whole cloth cover. If mixing is carried out at the drawing part, because the polyester staple fibers and the viscose fibers need to be subjected to the opening and carding processes to form strips, the strips can not be mixed very uniformly like the opening and cleaning processes in the drawing process, after drawing, the polyester viscose strips are distributed in a parallel state, the polyester viscose strips in the parallel state can appear on the surface and inside of yarns in the later roving and spinning process, and further, when dyeing is carried out on the viscose in the later period, the viscose strips eat colors but the polyester strips do not eat colors, uneven thin strips and dotted black can appear on the yarns, partial areas with uneven distribution on the surface of the fabric are relatively concentrated with black, gray strips and gray points, the style is unique, and the cloth cover effect is very beautiful.
The dyeing process comprises the following steps:
the dyeing process generally selects viscose fibers to be dyed fully, energy can be saved due to the low dyeing temperature of the viscose fibers, meanwhile, the reactive dye is relatively cheap, the dye-uptake of the viscose fibers is also high, and the color fastness is relatively good.
When the fabric is dyed, viscose fiber can be dyed, polyester-viscose yarn can be dyed, and polyester-viscose blended grey fabric can be dyed to obtain the effect of hemp ash. But each has advantages and disadvantages, the cost of the dyed fiber is higher, the damage to the fiber is larger, the fiber performance is easy to be reduced, but the color of the finished product can not generate cylinder difference and batch difference; when grey cloth is dyed, the cost is lower, the production efficiency is high, but the cylinder difference is easy to generate, and the terylene is also easy to generate staining defects to influence the cloth cover effect; when the polyester viscose yarn is dyed, the performance and the cost are between the two. And (4) carrying out dyeing selection according to specific product requirements.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: according to the scheme, the treated cloth cover has a very beautiful gray effect through a creative operation mode, gray points on the surface of the fabric form a partial discontinuous concentrated effect, black and gray discontinuous stripes and gray points are hidden on the cloth cover, the cloth cover is attractive and elegant in style, black and gray are alternated and naturally coordinated, and the cloth cover has a very beautiful technical effect and sensory experience.
Detailed Description
A method for dyeing grey linen on polyester-viscose blended weft-knitted fabric comprises the following steps:
(1) placing cheese (including polyester yarn and viscose) required by polyester-viscose blended spinning in a dye vat, adding water with the temperature of 65-75 ℃ to immerse the yarn, then adding caustic soda for mixing, soaking and washing for 15-20 min, and discharging a mixed solution after the treatment is finished, wherein the water temperature of the added water is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min;
(2) adding water into the dye vat again to immerse the yarns, adding the gray reactive dye, the leveling agent and the penetrating agent, uniformly mixing, carrying out dyeing soaking treatment at 80-90 ℃, and discharging the mixed solution after the treatment is finished, wherein the percentage of the gray reactive dye, the leveling agent and the penetrating agent are 1%, and the percentage of the gray reactive dye, the leveling agent and the penetrating agent are 0.1%; wherein the temperature of the dyeing soaking treatment is 85 ℃, and the dyeing time is 30 min; the leveling agent is a fatty alcohol polyoxyethylene ether leveling agent; the penetrating agent is sodium dodecyl sulfate;
(3) adding water to immerse the dyed yarn, adding caustic soda for mixing, soaking and washing, and discharging the mixed solution after the treatment is finished, wherein the water temperature of the added water is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min;
(4) adding water to immerse the yarn treated in the step (3), then adding acetic acid, adjusting the pH of the mixed system to 6-7, washing the yarn, and taking out the yarn after the treatment is finished;
(5) weaving the yarn processed in the step (4) by a circular knitting machine to obtain a grey fabric with the gram weight of 252g per square meter, wherein the diameter of the circular knitting machine is 34 inches, the number of knitting needles is 28, the total number of the knitting needles is 2976, the number of yarn paths is 84, and the running speed is 18 r/min;
(6) placing the grey cloth in a dye vat, adding water to immerse the fabric, then adding caustic soda for mixing, soaking and washing, and discharging a mixed solution after the treatment is finished, wherein the water temperature of the added water is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min;
(7) adding water to immerse the fabric treated in the step (6), then adding acetic acid, adjusting the pH of the mixed system to 6-7, washing the grey fabric, and taking out the grey fabric after the treatment is finished;
(8) and (4) carrying out setting finishing on the grey cloth treated in the step (7) to obtain the polyester-viscose blended weft knitted fabric dyed with the linen gray color, wherein the setting temperature is 130 ℃, the setting speed is 20 yards/min, and the color fastness of the prepared polyester-viscose blended weft knitted fabric dyed with the linen gray color is level 4.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention are included in the scope of the present invention.
Claims (5)
1. A method for dyeing grey linen on polyester-viscose blended weft-knitted fabric is characterized in that: which comprises the following steps:
(1) putting the yarns required by the polyester-viscose blended yarn into a dye vat, adding water with the temperature of 70 ℃ to immerse the yarns, then adding caustic soda to perform mixing soaking and washing for 20 min, and discharging the mixed solution after the treatment is finished, wherein the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%;
(2) adding water into the dye vat again to immerse the yarns, adding the gray reactive dye, the leveling agent and the penetrating agent, mixing uniformly, enabling the percentage content of the gray reactive dye to be 1%, the percentage content of the leveling agent to be 0.1% and the percentage content of the penetrating agent to be 0.1%, carrying out dyeing soaking treatment at 85 ℃, and discharging the mixed solution after the treatment is finished, wherein the dyeing time is 30 min;
(3) adding water to immerse the dyed yarn, adding caustic soda for mixing, soaking and washing, and discharging the mixed solution after the treatment is finished, wherein the water temperature of the added water is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min;
(4) adding water to immerse the yarn treated in the step (3), then adding acetic acid, adjusting the pH of the mixed system to 6-7, washing the yarn, and taking out the yarn after the treatment is finished;
(5) weaving the yarn processed in the step (4) by a circular knitting machine to obtain a grey fabric with the gram weight of 252g per square meter, wherein the diameter of the circular knitting machine is 34 inches, the number of knitting needles is 28, the total number of the knitting needles is 2976, the number of yarn paths is 84, and the running speed is 18 r/min;
(6) placing the grey cloth in a dye vat, adding water to immerse the fabric, then adding caustic soda for mixing, soaking and washing, and discharging a mixed solution after the treatment is finished, wherein the water temperature of the added water is 70 ℃, the percentage content of the caustic soda in the mixed solution after the caustic soda is added is 0.5%, and the soaking and washing time is 20 min;
(7) adding water to immerse the fabric treated in the step (6), then adding acetic acid, adjusting the pH of the mixed system to 6-7, washing the grey fabric, and taking out the grey fabric after the treatment is finished;
(8) and (4) carrying out setting finishing on the grey cloth treated in the step (7) to obtain the polyester-viscose blended weft-knitted fabric dyed with hemp grey, wherein the setting temperature is 130 ℃, and the setting speed is 20 yards/min.
2. The method for dyeing ramie grey of polyester-viscose blended weft-knitted fabric according to claim 1, characterized in that: and (4) all the yarns in the steps (1) to (4) are cheese.
3. The method for dyeing ramie grey of polyester-viscose blended weft-knitted fabric according to claim 1, characterized in that: the yarn in the steps (1) to (4) comprises polyester yarn and viscose.
4. The method for dyeing ramie grey of polyester-viscose blended weft-knitted fabric according to claim 1, characterized in that: in the step (2), the leveling agent is a fatty alcohol polyoxyethylene ether type leveling agent; the penetrating agent is sodium dodecyl sulfate.
5. The method for dyeing ramie grey of polyester-viscose blended weft-knitted fabric according to claim 1, characterized in that: the color fastness of the polyester-viscose blended weft-knitted fabric dyed with the ramie gray color prepared in the step (8) is level 4.
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| CN107489044A (en) * | 2017-08-23 | 2017-12-19 | 辽源市杰牌印染科技有限公司 | One kind is on terylene under low bath raio and its low stretch yarn staining technique |
| CN107829312A (en) * | 2017-11-17 | 2018-03-23 | 博森织染（嘉兴）有限公司 | A kind of one-bath process method of polyester-cotton blend yarn or polyester/rayon yarnses line |
| CN108396569A (en) * | 2018-03-15 | 2018-08-14 | 浙江中鼎纺织科技有限公司 | Improve the colouring method of the special dark staining fastness of modified dacron viscose blended yarn |
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