CN106222906B - A method of preparing denim fabric - Google Patents

A method of preparing denim fabric Download PDF

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Publication number
CN106222906B
CN106222906B CN201610744621.XA CN201610744621A CN106222906B CN 106222906 B CN106222906 B CN 106222906B CN 201610744621 A CN201610744621 A CN 201610744621A CN 106222906 B CN106222906 B CN 106222906B
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Prior art keywords
dyeing
viscose rayon
cylinder
denim fabric
flatness viscose
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CN106222906A (en
Inventor
张静
陈容
李世玲
杨雪琴
唐多
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YIBIN HUIMEI FIBER NEW MATERIAL CO Ltd
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YIBIN HUIMEI FIBER NEW MATERIAL CO Ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • D06B3/09Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments as packages, e.g. cheeses
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General 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
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General 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
    • D06P1/44General 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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67333Salts or hydroxides
    • D06P1/6735Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20Cellulose-derived artificial fibres
    • D10B2201/22Cellulose-derived artificial fibres made from cellulose solutions
    • D10B2201/24Viscose

Abstract

The invention discloses a kind of method for preparing denim fabric, the denim fabric is made in the high-strength flatness viscose rayon for using dry breaking strength to be 11-15% for 2.8-3.1CN/DTEX, stem elongation rate after dyeing, spinning, weaving, washing.The present invention is using high-strength flatness viscose rayon as raw material, after being dyed using fiber dyeing method, it spinned, weave acquisition denim fabric, solving current denim fabric all is to have spun dyeing yarn or woven in the course of work of cloth dyeing, waste it is more, not environmentally, top-quality product rate is too low, large labor intensity, poor color fastness, the problem of dyeing working environment difference, it solves the problems such as denim fabric yield is not low, environmentally friendly up to standard, is suitable for being widely used to promote.

Description

A method of preparing denim fabric
Technical field
The present invention is a kind of method for preparing denim fabric, and in particular to a kind of to prepare cowboy with high-strength flatness viscose rayon The method of fabric belongs to denim field of textiles.
Background technique
It is raw material that traditional denim fabric, which is using pure cotton, is made after being spinned, dyeing starching, weaving, arrangement.To improve ox The performance of young fabric also has in current denim market using a series of blended fabric, as cotton polyester (50/50) is blended Fabric and cotton and other fibers such as Tencel, flax, even jute, weave together with wool yarn fiber, expanded ox The category and particular/special requirement of young fabric more have developed the denim fabric based on the special non-cotton with cowboy style.Such as patent A kind of manufacture craft of colored soft denim of document CN105803761A(, 2016.07.27, D06M11/50), The production method that a kind of micro- bullet of CN105200625A(imitates denim fabric, 2015.12.30, D03D15/00) etc..
It is known that whether traditional denim fabric, or the cowboy to have high additional properties made from blended fabric Fabric, it is common to use woven mode after first yarn dyeing, warp thread then mainly use indigo dyeing.It is indigo to belong to reducing dye, usually There are four dyeing courses, it may be assumed that the reduction (utilizing the reproducibility of caustic soda) of dyestuff (pigment blue), leuco compound (it is indigo after reduction, i.e., It is yellow for soluble salt;Salt Huang is destitute of smell, and is slightly soluble in water, ethyl alcohol, glycerol and propylene glycol, does not dissolve in grease;Fast light heat resistance Difference, it is unstable to citric acid, alkali.) on contaminate, leuco compound oxidation, dye post-processing.In the actual operation process, indigo dyeing method There are following situations:
1) bipseudoindoxyl dye is poor to the affinity of fiber, and upper dye is difficult.The warp dyeing of denim, generally using low dense, low The warm continuous dyeing method for repeatedly padding oxidation, can reach required dye level by 6 ~ 8 times.It is easy to produce transverse direction in this way The problems such as color difference, end to end color difference, shelves difference are greatly and coloured light consistency is poor, and it is lost 20-30% or more.
2) bipseudoindoxyl dye is a kind of dyestuff more rambunctious, and the process conditions such as combination, temperature, time of dye liquor are slightly not Together, the color dyed, coloured light, color fastness, depth can all be made to have greatly changed.Dyeing, woven fabric, clothing production link environment Badly, cloth cover color difference is big, and color fastness is low, and washing energy consumption is big.
A kind of existing dyeing and finishing method of bamboo fibre denim fabric of patent document CN104947281A(, 2015.09.30, D03D15/00 a kind of dyeing and finishing method carried out according to pretreatment process, revenue stamp process, finishing process) is disclosed, is used Warp thread by the pure cotton fiber that dyes and it is bamboo fiber blended form, denim fabric obtained need to could make bamboo after dyeing and finishing method Fibre denim fabric had both continued the style of traditional jeans, while also having high excellent sucting wet air permeability and high-elastic flexible Property, water-fastness, crease-resistant folding, complex technical process.
A kind of existing preparation method and applications of natural plant dye of patent document CN103013167A(, 2013.04.03, C09B61/00) to disclose the natural plants used on a kind of warp dyeing for manufacturing denim fabric indigo The preparation method of fuel avoids proposing the theory of environmental protection, health using chemically synthesized chemical dyestuff, but the natural dye Coloring case on denim fabric need facts have proved.
A kind of dyed-spinning and knitting colored jean material of existing patent document CN101343812(and its production method, 2009.01.014, D04B1/14) it proposes and work is spun by the pre-treatment of cotton staple in bulk low temperature, full environment-friendly type sulfur dyeing, color The method that skill route spins to prepare colored jean material, on the one hand, original single dark blue color can be changed, on the other hand, Using environment-friendly type sulfur dye, the pollution of production environment is reduced, but it is complicated to wash arrangement process.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for preparing denim fabric, are 2.8-3.1CN/ with dry breaking strength The high-strength flatness viscose rayon that DTEX, stem elongation rate are 11-15% is raw material, after being dyed using fiber dyeing method, is spun Yarn, weaving obtain denim fabric, and solving current denim fabric all is to have spun dyeing yarn or woven in the course of work of cloth dyeing, Waste it is more, not environmentally, top-quality product rate is too low, large labor intensity, poor color fastness, the problem of dyeing working environment difference, solve ox The problems such as young fabric yield is not low, environmentally friendly up to standard, is suitable for being widely used to promote.
The present invention is achieved through the following technical solutions: a method of preparing denim fabric, use dry breaking strength for 2.8-3.1CN/DTEX, the high-strength flatness viscose rayon that stem elongation rate is 11-15% are made after dyeing, spinning, weaving, washing The denim fabric.
The invention proposes one kind using high-strength flatness viscose rayon as raw material, after stock-dye, spinning, weaving, washing The method for preparing denim fabric, spinning of the present invention, weaving are identical as traditional production method of denim fabric, and washing is once , for more traditional denim fabric need to be washed 4-5 times, water consumption is substantially reduced, and washing fastness is high, more reduces sewage treatment Environmental protection pressure, be conducive to large-scale industrial production.
It is described dyeing the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to spinning cake, controlled by the bath raio of 1:5-12 The amount of high-strength flatness viscose rayon and water in cylinder, and auxiliary agent is added thereto;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
In the step (1), spinning cake is fabricated to after height is 80-110mm and is put into staining jar, is soaked spinning cake with water And after pressure release, filled the water into cylinder.
In the above process, spinning cake is soaked into simultaneously pressure release, refers to and sufficiently drenches cake water, then will connected in cake not close The place in (place for having cavity in cake) is completely embedded, and is conducive to the uniformity for keeping spinning cake density, is reduced and contaminate in subsequent step The probability of chromatograph difference and dyeing defect.
In the step (1), auxiliary agent EDTA, the concentration of EDTA is 0.5-1.5g/L in master cylinder, walks even 20- 50min。
In the step (2), dyeing includes:
(2.1) dyestuff is added into cylinder at 20-45 DEG C, keeps the temperature 20-60min;
(2.2) after sodium sulphate being added into cylinder, 20-70min is kept the temperature;
(2.3) increasing temperature is 50-80 DEG C, and after then keeping the temperature 20-70min, alkali is added into cylinder, keeps the temperature 20- 70min completes the dyeing of high-strength flatness viscose rayon.
In the step (2.2), sodium sulphate at least once is added into cylinder, the additional amount control of every sodium hydrosulfide is 0.2-1 times of total amount in cylinder.
The alkali can select soda ash, fixation alkali, substitute alkali or caustic soda etc..
In the step (3), the high-strength flatness viscose rayon after dyeing obtains coloured fibre after oily 30-70min Product can make fiber become more soft, and spinnability is stronger.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) the high-strength flatness that the present invention uses dry breaking strength to be 11-15% for 2.8-3.1CN/DTEX, stem elongation rate is viscous Glue fiber prepares raw material as denim fabric, the high-strength flatness viscose rayon free from admixture, has and is easier to moulding, more stable, and The characteristic that light mercerising can be reached is that existing traditional denim fabric raw material institute based on cotton is inaccessiable, and therefore, this is high-strength low The application for stretching viscose rayon can improve the quality and yield rate of denim fabric, have good economic value.
(2) present invention prepares raw material as denim fabric using high-strength flatness viscose rayon, due to high-strength flatness fiber Distinctive physical characteristic, it may be assumed that dry breaking strength is 2.8-3.1CN/DTEX, stem elongation rate is 11-15%, is able to satisfy knitting, machine It knits, a variety of weaving technologies such as tatting, and existing traditional denim fabric raw material based on cotton is then only able to satisfy single weaving technology, Therefore, the technical field that denim fabric production can also be expanded using the high-strength flatness fiber, meets the hair of modern production enterprise Exhibition requires.
(3) present invention is using first stock-dye, the method then spinning, weave again, wash obtained denim fabric, and existing Compared in technology with the method for white fiber spinning, woven fabric poststaining, post-processing, this method bring advantage has following side Face: one, the tinctorial yield and qualification rate of cloth can be improved, embryo cloth is dyed using dyestuff, because of large quantities, it may appear that irregular colour It is even, have the problems such as color spot, dying operation process is complicated, causing the qualification rate of Grade A is only 70%, if directly to stock-dye after Spinning, weaving, woven cloth then show color uniformly, without the characteristic of color difference color spot, Grade A qualification rate can reach To 100%;Two, in terms of post-processing, embryo cloth is dyed using dyestuff, the cloth after dyeing cannot be directly used to production ready-made clothes, also It need to could use after the operation such as complicated last handling process, that is, desizing, washing, for the method for white fiber direct staining, deposit The problems such as treatment process is complicated, pollution is big, energy consumption is high, the environmental protection pressure of sewage post-processing is big;Three, with white fiber direct staining Spinning, woven method have higher color fastness (3-4 grades of washing), existing use compared with the finished product cloth that the prior art obtains afterwards The color fastness for the cloth that the method for white embryo cloth direct staining obtains is low (2-3 grades of washing);Four, the production pressure of enterprise can be reduced, Spinning, the woven finished product cloth arrived, can be fabricated directly into clothing after being dyed using white fiber, avoid inventory, and enterprise is according to ordering Single amount is produced, and the control of production cost is conducive to.
(4) in the method for the present invention, when high-strength flatness viscose fiber staining, using three pretreatment, dyeing and post-processing steps Suddenly, operating process is simple, after weaving is at cloth, is once washed, water consumption can be controlled in 10 tons of water ranges of cloth per ton Interior, sewage treatment can reach environmental protection index;In method using white embryo cloth direct staining, through desizing and water-washing step, cloth per ton Water consumption be at least 70-80 tons, (3 cylinder water of desizing, 30 tons of water consumption, wash 4-5 time, water consumption be 40-50 tons), sewage Processing cost is high, and environmental protection pressure is big.
(5) during the stock-dye that the method for the present invention is related to, by high-strength flatness viscose glue in the bath raio master cylinder of 1:5-12 After the amount of fiber and water, then auxiliary agent EDTA is added thereto, and the concentration of EDTA is 1g/l in master cylinder, is conducive to improve dyestuff Stability in cylinder, further to control the uniformity of stock-dye.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.8CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 12% after dyeing, spinning, weaving, washing.
Embodiment 2:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 3.1CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 15% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to spinning cake, controlled by the bath raio of 1:5-12 The amount of high-strength flatness viscose rayon and water in cylinder, and auxiliary agent is added thereto;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 3:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.8CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 11% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: staining jar is put into after high-strength flatness viscose rayon is fabricated to spinning cake, by the bath raio master cylinder of 1:5 The amount of interior high-strength flatness viscose rayon and water, and auxiliary agent is added thereto;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 4:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 3.1CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 11% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 80mm, it will with water Spinning cake soaks and after pressure release, fills the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:12, and to Auxiliary agent is wherein added;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 5:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.8CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 15% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 110mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:6, and Auxiliary agent is added thereto;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 6:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.9CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 12% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 95mm, it will with water Spinning cake soaks and after pressure release, fills the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:10, and to EDTA is wherein added, the concentration of EDTA is 0.5g/L g/L in master cylinder, walks even 20min;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 7:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 3.0CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 11.5% after dyeing, spinning, weaving, washing, wherein dye Color the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 90mm, it will with water Spinning cake soaks and after pressure release, fills the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:10, and to EDTA is wherein added, the concentration of EDTA is 1.5g/L in master cylinder, walks even 50min;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 8:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 3.1CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 12% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 85mm, it will with water Spinning cake soaks and after pressure release, fills the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:10, and to EDTA is wherein added, the concentration of EDTA is 0.8 g/L in master cylinder, walks even 30min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 20 DEG C, keeps the temperature 20min;
(2.2) after sodium sulphate being added into cylinder, 20min is kept the temperature;
(2.3) increasing temperature is 50 DEG C, and after then keeping the temperature 20min, alkali (soda ash) is added into cylinder, keeps the temperature 20min, complete At the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 9:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.8CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 13% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 110mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:9, and EDTA is added thereto, the concentration of EDTA is 1.0g/L g/L in master cylinder, walks even 40min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 45 DEG C, keeps the temperature 60min;
(2.2) after sodium sulphate being added into cylinder, 70min is kept the temperature;
(2.3) increasing temperature is 80 DEG C, and after then keeping the temperature 70min, alkali (fixation alkali) is added into cylinder, keeps the temperature 70min, Complete the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 10:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 3.0CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 12.8% after dyeing, spinning, weaving, washing, wherein dye Color the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 100mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:10, and EDTA is added thereto, the concentration of EDTA is 1.2g/L g/L in master cylinder, walks even 45min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 30 DEG C, keeps the temperature 45min;
(2.2) four sodium sulphate is added into cylinder, the additional amount control of every sodium hydrosulfide is 0.2 times of total amount in cylinder, Then 50min is kept the temperature;
(2.3) increasing temperature is 65 DEG C, and after then keeping the temperature 50min, alkali (substitute alkali) is added into cylinder, keeps the temperature 50min, Complete the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 11:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.85CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 12.2% after dyeing, spinning, weaving, washing, wherein dye Color the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 98mm, it will with water Spinning cake soaks and after pressure release, fills the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:8, and to EDTA is wherein added, the concentration of EDTA is 1.4g/L in master cylinder, walks even 35min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 40 DEG C, keeps the temperature 60min;
(2.2) sodium sulphate three times is added into cylinder, the additional amount control of every sodium hydrosulfide is 1 times of total amount in cylinder, so After keep the temperature 60min;
(2.3) increasing temperature is 40 DEG C, and after then keeping the temperature 60min, alkali (caustic soda) is added into cylinder, keeps the temperature 60min, complete At the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment.
Embodiment 12:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.8CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 13.1% after dyeing, spinning, weaving, washing, wherein dye Color the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 100mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:12, and EDTA is added thereto, the concentration of EDTA is 0.6g/L in master cylinder, walks even 25min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 45 DEG C, keeps the temperature 30min;
(2.2) sodium sulphate twice is added into cylinder, the additional amount control of every sodium hydrosulfide is 0.5 times of total amount in cylinder, Then 70min is kept the temperature;
(2.3) increasing temperature is 60 DEG C, and after then keeping the temperature 50min, alkali (soda ash) is added into cylinder, keeps the temperature 70min, complete At the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after oily 30min.
Embodiment 13:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 3.05CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 14.5% after dyeing, spinning, weaving, washing, wherein dye Color the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 105mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:11, and EDTA is added thereto, the concentration of EDTA is 1.1g/L in master cylinder, walks even 35min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 40 DEG C, keeps the temperature 55min;
(2.2) primary sodium sulphate is added into cylinder, the additional amount control of every sodium hydrosulfide is 0.8 times of total amount in cylinder, Then 70min is kept the temperature;
(2.3) increasing temperature is 80 DEG C, and after then keeping the temperature 20min, alkali (caustic soda) is added into cylinder, keeps the temperature 40min, complete At the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after oily 70min.
Embodiment 14:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.9CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 12% after dyeing, spinning, weaving, washing, wherein dyeing The following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 110mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:6, and EDTA is added thereto, the concentration of EDTA is 1.3g/L in master cylinder, walks even 50min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 30 DEG C, keeps the temperature 50min;
(2.2) four sodium sulphate is added into cylinder, the additional amount control of every sodium hydrosulfide is 0.4 times of total amount in cylinder, Then 55min is kept the temperature;
(2.3) increasing temperature is 70 DEG C, and after then keeping the temperature 50min, alkali (fixation alkali) is added into cylinder, keeps the temperature 60min, Complete the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre production after dolantin film excessively oil 50min Product.
Embodiment 15:
The present embodiment proposes a kind of method for preparing denim fabric, uses dry breaking strength for 2.95CN/DTEX, dry stretches The denim fabric is made in the high-strength flatness viscose rayon that long rate is 13.6% after dyeing, spinning, weaving, washing, wherein dye Color the following steps are included:
(1) it pre-processes: being put into staining jar after high-strength flatness viscose rayon is fabricated to the spinning cake that height is 110mm, use water After spinning cake is soaked simultaneously pressure release, filled the water into cylinder, by the amount of high-strength flatness viscose rayon and water in the bath raio master cylinder of 1:10, and EDTA is added thereto, the concentration of EDTA is 0.75g/L in master cylinder, walks even 45min;
(2) it dyes:
(2.1) dyestuff is added into cylinder at 30 DEG C, keeps the temperature 60min;
(2.2) four sodium sulphate is added into cylinder, the additional amount control of every sodium hydrosulfide is 0.6 times of total amount in cylinder, Then 60min is kept the temperature;
(2.3) increasing temperature is 50 DEG C, and after then keeping the temperature 70min, alkali (substitute alkali) is added into cylinder, keeps the temperature 50min, Complete the dyeing of high-strength flatness viscose rayon;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre production after dolantin film excessively oil 65min Product.
Dyestuff involved in above-described embodiment is active group bipseudoindoxyl dye, can be obtained by outsourcing.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within Within the scope of.

Claims (3)

1. a kind of method for preparing denim fabric, it is characterised in that: use dry breaking strength for 2.8-3.1CN/DTEX, stem elongation Rate is that the denim fabric is made in the high-strength flatness viscose rayon of 11-15% after dyeing, spinning, weaving, washing,
It is described dyeing the following steps are included:
(1) it pre-processes: staining jar is put into after high-strength flatness viscose rayon is fabricated to spinning cake, by the bath raio master cylinder of 1:5-12 The amount of high-strength flatness viscose rayon and water, and auxiliary agent is added thereto;
(2) it dyes: dyestuff, sodium sulphate and alkali being added into cylinder, high-strength flatness viscose rayon is dyed;
(3) post-process: the high-strength flatness viscose rayon after dyeing obtains coloured fibre product after over oil treatment,
In the step (1), auxiliary agent EDTA, the concentration of EDTA is 0.5-1.5g/L in master cylinder, walks even 20-50min,
In the step (2), dyeing includes:
(2.1) dyestuff is added into cylinder at 20-45 DEG C, keeps the temperature 20-60min;
(2.2) after sodium sulphate being added into cylinder, 20-70min is kept the temperature;
(2.3) increasing temperature is 50-80 DEG C, and after then keeping the temperature 20-70min, alkali is added into cylinder, keeps the temperature 20-70min, complete At the dyeing of high-strength flatness viscose rayon.
2. a kind of method for preparing denim fabric according to claim 1, it is characterised in that:, will in the step (1) Spinning cake is fabricated to after height is 80-110mm and is put into staining jar, after spinning cake is soaked simultaneously pressure release with water, fills the water into cylinder.
3. a kind of method for preparing denim fabric according to claim 1, it is characterised in that: in the step (3), dye High-strength flatness viscose rayon after color obtains coloured fibre product after oily 30-70min.
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CN110450484A (en) * 2019-07-25 2019-11-15 浙江青松轻纺股份有限公司 A kind of high micro- fleece fabric in color jail of island composite terylene
CN110616578A (en) * 2019-10-28 2019-12-27 百隆东方股份有限公司 Method for manufacturing colored spun yarn for washing jean

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CN101343812A (en) * 2007-07-13 2009-01-14 浙江华孚色纺有限公司 Dyed-spinning and knitting colored jean material and its production method
CN103696085A (en) * 2013-12-16 2014-04-02 江苏波波熊纺织品有限公司 Jean fabric and production method thereof
CN104831391A (en) * 2015-05-27 2015-08-12 宜宾丝丽雅集团有限公司 Low-elongation viscose fiber and preparation method and application thereof
CN105064079A (en) * 2015-09-16 2015-11-18 太仓市国峰纺织印染有限责任公司 Dyeing and finishing method of bamboo fiber

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CN101343812A (en) * 2007-07-13 2009-01-14 浙江华孚色纺有限公司 Dyed-spinning and knitting colored jean material and its production method
CN103696085A (en) * 2013-12-16 2014-04-02 江苏波波熊纺织品有限公司 Jean fabric and production method thereof
CN104831391A (en) * 2015-05-27 2015-08-12 宜宾丝丽雅集团有限公司 Low-elongation viscose fiber and preparation method and application thereof
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