CN113832605B - Shrink-proof fabric easy to dye and preparation method thereof - Google Patents

Shrink-proof fabric easy to dye and preparation method thereof Download PDF

Info

Publication number
CN113832605B
CN113832605B CN202010589071.5A CN202010589071A CN113832605B CN 113832605 B CN113832605 B CN 113832605B CN 202010589071 A CN202010589071 A CN 202010589071A CN 113832605 B CN113832605 B CN 113832605B
Authority
CN
China
Prior art keywords
agent
shrink
dye
yarn
dyeing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010589071.5A
Other languages
Chinese (zh)
Other versions
CN113832605A (en
Inventor
黄庆强
薛永亮
徐国华
钟家彰
吴晓微
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Senlin Textile Ltd
Original Assignee
Dongguan Senlin Textile Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Senlin Textile Ltd filed Critical Dongguan Senlin Textile Ltd
Priority to CN202010589071.5A priority Critical patent/CN113832605B/en
Publication of CN113832605A publication Critical patent/CN113832605A/en
Application granted granted Critical
Publication of CN113832605B publication Critical patent/CN113832605B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/46—Compounds containing quaternary nitrogen atoms
    • D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • 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
    • D06P1/39—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 acid dyes
    • 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
    • D06P1/41—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 basic dyes
    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/653—Nitrogen-free carboxylic acids or their salts
    • D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67333—Salts or hydroxides
    • D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
    • 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
    • D06P3/8214—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing ester and amide groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • 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
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk
    • 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
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/45—Shrinking resistance, anti-felting properties
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions
    • 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
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D10B2211/01—Natural animal fibres, e.g. keratin fibres
    • D10B2211/02—Wool
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Abstract

The invention relates to the technical field of fabrics, in particular to an anti-shrinkage fabric easy to dye and a preparation method thereof. The shrink-proof fabric is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/40NM-1/60NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber. The shrink-proof fabric easy to dye is formed by blending and weaving three yarn fibers, so that the fabric is good in skin-friendly performance, comfortable to wear, high in dye-uptake, quick-drying, non-ironing and the like, good in air permeability and good in shrink-proof effect.

Description

Shrink-proof fabric easy to dye and preparation method thereof
Technical Field
The invention relates to the technical field of fabrics, in particular to an anti-shrinkage fabric easy to dye and a preparation method thereof.
Background
At present, most of the fabrics on the market are woven by two threads, and are usually drawn frame yarns and polyester yarns, and the fabrics woven by three threads are unusual, meanwhile, the polyester yarns are long fiber yarns, so that the fabric woven by using the polyester yarns is poor in adhesive property and comfort, and the wearing comfort of the fabric is affected; the quick-drying performance is low, the moisture volatility of the fabric after moisture is absorbed on the surface of the fabric is low, so that the fabric has an adhesive feel, and the wearing comfort is reduced; on the other hand, the existing two-wire knitted drawn frame yarns, polyester yarns and other fabrics have poor dyeing effect, and the problems of fading, color change and the like easily occur after washing or sweat absorption.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art, the invention aims to provide the shrink-proof fabric easy to dye, the shrink-proof fabric easy to dye is woven by adopting three yarn fiber blending, the prepared fabric sequentially forms three yarn layers, the skin-friendly performance is good, the wearing is comfortable, the effect of high dye-uptake, quick drying, no-iron and the like is achieved, the air permeability is good, and the shrink-proof effect is good.
The invention further aims to provide a preparation method of the shrink-proof fabric easy to dye, which has the advantages of convenient operation control, stable quality, high production efficiency and low production cost, and the prepared fabric is soft and comfortable, skin-friendly and breathable, high in color fastness, difficult to deform or decolor after washing, good in shrink-proof effect and high in stability, and is suitable for large-scale industrial production by strictly controlling each step and condition parameters.
The aim of the invention is achieved by the following technical scheme: the shrink-proof fabric easy to dye is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/40NM-1/60NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber.
The shrink-proof fabric easy to dye is formed into three yarn layers sequentially by adopting three yarn fiber blending weaving, is good in skin affinity and comfortable to wear, has the effects of high dye-uptake, quick drying, no ironing and the like, and is good in air permeability and shrink-proof effect.
The traditional common polyester has the problems of poor hygroscopicity, poor dyeing performance, easiness in static accumulation, easiness in fuzzing and the like, the cationic polyester adopted by the invention is modified polyester, normal-temperature dyeing can be realized without high-temperature dyeing, the dyeing process has high dye-uptake rate, high color fastness, difficult deformation or decoloration after washing, and high stability.
The shrink-proof wool fiber is prepared by shrink-proof treatment of wool fiber, specifically resin treatment of wool fiber with the surface of the wool fiber coated with resin, so that the directional friction effect of the fiber is weakened, the inter-fiber point bonding is realized, the inter-fiber movement is prevented, the prepared wool fiber is not shrunk after subsequent dyeing and finished product washing, and the luster is not changed.
Preferably, the yarn length density of the face yarn is 24-28cm/100g; the yarn length density of the middle layer yarn is 41-45cm/100g, the fineness is 30D-100D, and the hole number is 36F-96F; the yarn length density of the base yarn is 24-28cm/100g, the fineness is 50D-150D, and the hole number is 36F-96F.
The invention can ensure that the prepared fabric has better knitting tightness, is not easy to break or wire drawing, has high elasticity, good skin affinity, comfortable wearing, high dye-uptake, environmental protection, warmth retention, machine washing, no ironing and other functions, and has good air permeability and shrink-proof effect by strictly controlling the yarn length density of each yarn.
The other object of the invention is achieved by the following technical scheme: the preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
The invention further aims to provide a preparation method of the shrink-proof fabric easy to dye, which has the advantages of convenient operation control, stable quality, high production efficiency and low production cost, and the prepared fabric is soft and comfortable, skin-friendly and breathable, high in color fastness, difficult to deform or decolor after washing, good in shrink-proof effect and high in stability, and is suitable for large-scale industrial production by strictly controlling each step and condition parameters.
The dyeing method comprises the steps of dyeing cloth twice in the dyeing process, adopting a first dye liquor to dye cationic polyester fibers, adopting a second dye liquor to dye shrink-proof wool fibers, adopting the dyeing treatment respectively carried out in two times, enabling the cationic polyester fibers and the shrink-proof wool fibers to be uniformly dyed, and if different fibers are dyed by adopting a single dye, if the dyeing is carried out by adopting only cationic fibers, the adhesion of the dye to the shrink-proof wool fibers is lower, so that the dyeing rate of the shrink-proof wool fibers is lower, the dye is easy to fall off from the shrink-proof wool fibers in the subsequent process or in the using process, and the color fastness of a finished product is obviously reduced; similarly, if the acid dye is adopted to dye the shrink-proof wool fiber, the adhesion force of the dye to the cationic polyester fiber and the internal diffusion performance of the fiber are lower, and the dye is easy to fall off from the cationic polyester fiber in the subsequent process or use process, so that the color fastness of the finished product is obviously reduced. Therefore, the invention can dye two kinds of fibers respectively by adopting two different dyes for dyeing, and compared with the traditional process of respectively dyeing and then weaving, the invention greatly improves the preparation and processing efficiency of the fabric.
And the dyeing system in the dyeing process can be neutralized by washing and soaping after each dyeing, the adhesive force of the dye on the fiber and the color fastness of a finished product are improved, the dye which is not stably and firmly adhered to the fiber is washed away, and the flooding phenomenon is avoided (for example, the first dye liquor which is not stably adhered to the cationic polyester fiber and part of the second dye liquor are washed away, and the second dye liquor which is not stably adhered to the shrink-proof wool fiber and part of the first dye liquor are washed away).
The washings are carried out by adopting alkaline powder in the non-softening treatment, so that the washings are strong in washing power, the flooding can be effectively removed, the chelating power is strong, the dispersibility is good, and the flooding can be effectively prevented from being stained on fabric fibers. And the dye system in the dyeing process can be neutralized instead of the soft cooling treatment, the adhesive force of the dye on the fiber and the color fastness of the finished product are improved, the dye which is not stably and firmly adhered to the fiber is washed away, and the flooding phenomenon (such as washing away the dye liquor which is not stably adhered to the fiber) is avoided. And citric acid is adopted for non-softening cold treatment, and crosslinking is carried out between the non-softening cold treatment and the fiber, so that the mechanical properties such as tensile strength of the fiber are improved.
Preferably, in the step B, the temperature of the oil removal treatment is 75-85 ℃ and the treatment time is 15-25min; the degreasing agent is TX-1109 type degreasing agent.
According to the invention, the oil removal agent and the oil removal treatment parameter conditions are adopted to carry out oil removal treatment on the gray fabric, so that grease impurities on the surface of the gray fabric can be cleaned, the color absorbing capacity of the fabric in subsequent dyeing can be improved, the adhesive force of subsequent dye liquor in the gray fabric yarn can be improved, and the dyeing rate and color fastness can be improved.
Preferably, in the step C, the temperature of the first soaking dyeing is 100-110 ℃, the soaking time is 40-50min, the dyeing water bath ratio is 28-32, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000041
the cationic polyester fiber dyeing method has the advantages that the raw materials of the type are adopted as the first dye liquor, so that the cationic polyester fiber dyeing method can be stably attached to the cationic polyester fiber, the dyeing effect and the color fastness of the cloth are improved, the cloth is water-washing resistant and is not easy to fade, and the dyeing and the coloring of the cationic polyester fiber of the bottom yarn layer and the middle layer are realized; the adopted cationic dye is green and environment-friendly, is combined with a controlled water bath ratio, is dissolved in water to generate ionization to generate colored ion dye with positive charges, is adsorbed on the surface of the cationic polyester fiber, and then is intended to diffuse into the surface of the cationic polyester fiber, so that the dyeing of the cationic polyester fiber is prepared, and the light fastness is high; the adopted glacial acetic acid and sodium acetate can play a weak acidic buffering role on a dye system, so that the dissociation of acidic groups in the cationic polyester fibers caused by over-acidity is avoided, the coulomb attraction between the dye and the fibers is avoided to be reduced, and the reduction of dyeing rate is avoided; the adopted anti-settling agent can prevent the ionic dye from coagulating sedimentation, has strong dispersion capability, can improve the dyeing rate of the particle dye on the fiber, and has better acid resistance, alkali resistance, hard water resistance and emulsifying property; the adopted accelerating agent can increase the adsorption quantity of dye anions and fiber molecules, and promote the absorption efficiency of the cloth to the dye and the adhesive force of the dye.
Preferably, each part of the cationic dye comprises 10-15 parts of cationic golden yellow X-GL, 15-18 parts of cationic blue X-RS and 3-5 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture composed of sodium chloride and sodium sulfate in a weight ratio of 2-4:1-2.
The cationic golden X-GL, the cationic blue X-RS and the cationic black X-OS are adopted as cationic dyes, are easily dissolved in water, are ionized in aqueous solution to form colored ion dyes with positive charges, are stably combined with acid groups in cationic polyester fibers, have high light fastness and are not easy to separate, and the cationic golden X-GL, the cationic blue X-RS and the cationic black X-OS are the listed cationic dye types, and other cationic dyes have the same combination capacity with the acid groups in the cationic polyester fibers; the IW-103 type anti-settling agent of Guangdong megaday textile technology Co., ltd is adopted as the anti-settling agent, so that the dye system is dispersed and emulsified, the dispersion uniformity of the dye is promoted, and the coagulation and precipitation of the dye are prevented; the adopted sodium chloride and sodium sulfate are compounded to serve as an accelerating agent, so that the adhesive force and the penetrating power of the dye can be obviously improved, the dye absorption efficiency of the cloth is improved, and the dyeing degree is high; the adopted sodium chloride can improve the permeability and dyeing promotion of the dye, the adopted fiber is negatively charged in the aqueous solution, sodium chloride and sodium sulfate can be ionized in the aqueous solution, the cation physique generated by ionization is smaller, the activity in the aqueous solution is larger, and the sodium chloride is easy to adsorb around fiber molecules, so that the negative charge on the surface of the fiber molecules is reduced, the adsorption quantity of dye anions and cellulose molecules is relatively increased, and the dyeing promotion effect is achieved.
Preferably, in the step C, the temperature of the first soaping is 65-75 ℃, the soaping time is 15-25min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping is carried out at 65-75 ℃ for 15-25min, and the second soaping adopts GC-501B type acid color fixing agent.
The invention strictly controls the temperature, time and soaping auxiliary agent of each soaping, washes away the dye which is not stably and firmly attached to the fiber, avoids the flooding phenomenon (such as washing away the first dye liquor which is not stably attached to the cation terylene fiber and part of the second dye liquor, and washing away the second dye liquor which is not stably attached to the shrink-proof wool fiber and part of the first dye liquor), and simultaneously does not harm the adhesiveness of another dye, such as the adopted GC-9001 type soaping agent is used for washing and dye fixing the first dye liquor which is not dyed, thereby damaging the adhesiveness of the second dye liquor on the wool fiber; the GC-501B acid color fixing agent can improve the adhesive force of acid dye on wool fibers, improve the dyeing rate of the second dye solution on the wool fibers, remove undyed flooding, and simultaneously do not influence the dyeing rate of the first dye solution on the cationic polyester fibers.
Preferably, in the step C, the temperature of the second soaking dyeing is 90-100 ℃, the soaking time is 40-50min, the dyeing water bath ratio is 28-32, and the second dyeing solution comprises the following raw materials in parts by weight:
Figure BDA0002555703370000061
preferably, the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
According to the invention, the raw materials of the type are adopted as the second dye liquor, so that the dye liquor can be stably attached to the shrink-proof wool fibers, the dyeing effect and the color fastness of the cloth are improved, the cloth is water-washed and is not easy to fade, and the dyeing and the coloring of the shrink-proof wool fibers of the face yarn layer are realized; the acid dye adopted has high dye-uptake rate on wool fibers, and has better color fastness, washing fastness and rubbing fastness, chlorine bleaching resistance and other oxidation bleaching resistance, and the wool fibers are not easy to fade after multiple times of washing; the acid black M-R is only an example of an acid dye, and can be selected according to actual requirements, and other acid dyes except the acid black M-R also have the same binding capacity as wool fibers.
Preferably, in the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 15-25min; in the step E, the shaping temperature is 125-135 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure BDA0002555703370000071
according to the invention, the sizing agent is prepared by adopting the raw materials, so that the cloth can be effectively sized after being dyed, the crosslinking property of the first dye liquor, the second dye liquor and the fibers is improved, and the yellowing resistance of the cloth is improved; the hydrophilic silicone oil belongs to a non/weak cation type amino silicon softener, has better hydrophilicity, auxiliary compatibility and shearing resistance, can improve the processability of cloth such as sewing property, provides better smoothness, ensures that cloth fibers have smooth and fluffy handfeel, improves the washing fastness, low yellowing property, rubbing fastness and light fastness of the cloth, ensures that the processed cloth is not changed into yellow and color after soaping for 15 times, has good stability, can obviously improve the handfeel, antistatic property, hydrophilicity, washing fastness and dirt resistance of the cloth, has good biodegradability and has no pollution to the environment.
The antistatic agent can reduce the friction coefficient of the cloth, so that static electricity is difficult to generate among the fibers, and conductive channels are formed among the fibers, so that the charges can be quickly removed from the surfaces of the fibers, and the antistatic effect of the cloth is improved. And the pH value of the sizing agent can be adjusted by the citric acid, so that the stability, washability and yellowing resistance of the cloth are improved.
Preferably, the moisture absorption quick-drying agent is a Ludoffer FERAN ICS moisture absorption quick-drying auxiliary agent; each part of antistatic agent comprises 8-12 parts of tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 25-35 parts of water by weight.
The moisture absorption quick-drying agent adopted by the invention has better hydrophilicity and auxiliary compatibility, can improve the performances of water absorption, moisture permeability, quick drying and the like of the cloth, and ensures that the prepared fabric has fluffiness, softness, good elasticity, comfortable hand feeling, ventilation and sweat absorption; the antistatic agent can reduce the friction coefficient of the cloth, so that static electricity is difficult to generate among the fibers, and a conductive channel is formed among the fibers, so that the charges can be quickly removed from the surfaces of the fibers, and the antistatic effect of the cloth is improved; wherein, the trishydroxyethyl methyl quaternary ammonium methyl sulfate is easy to dissolve in water, has hygroscopicity, and can improve the antistatic effect and hygroscopicity of the fabric; preferably, the trishydroxyethyl methyl quaternary ammonium methyl sulfate is selected from SL-K15 type antistatic agents.
The invention has the beneficial effects that: the shrink-proof fabric easy to dye is formed by blending and weaving three yarn fibers, so that the fabric is good in skin-friendly performance, comfortable to wear, high in dye-uptake, quick-drying, non-ironing and the like, good in air permeability and good in shrink-proof effect.
The preparation method of the shrink-proof fabric easy to dye has the advantages of convenient operation control, stable quality, high production efficiency and low production cost, and the prepared fabric is soft and comfortable, skin-friendly and breathable, high in color fastness, difficult to deform or decolorize after washing, good in shrink-proof effect and high in stability, and is suitable for large-scale industrial production by strictly controlling each step and condition parameters.
Detailed Description
The invention will be further illustrated by the following examples, which are not intended to limit the scope of the invention, in order to facilitate the understanding of those skilled in the art.
Example 1
The shrink-proof fabric easy to dye is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/80NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber.
The yarn length density of the face yarn is 26cm/100g; the yarn length density of the middle layer yarn is 43cm/100g, the fineness is 50D, and the hole number is 72F; the yarn length density of the base yarn is 26cm/100g, the fineness is 75D, and the hole number is 72F.
The preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step B, the temperature of the oil removal treatment is 75 ℃, and the treatment time is 25min; the degreasing agent is TX-1109 type degreasing agent.
In the step C, the temperature of the first soaking dyeing is 100 ℃, the soaking time is 50min, the dyeing water bath ratio is 28, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000091
each part of the cationic dye comprises 10 parts of cationic golden yellow X-GL, 15 parts of cationic blue X-RS and 3 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture consisting of sodium chloride and sodium sulfate in a weight ratio of 2:1.
In the step C, the temperature of the first soaping is 65 ℃, the soaping time is 25min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping is carried out at 65 ℃ for 25min by adopting a GC-501B type acid color fixing agent.
In the step C, the temperature of the second soaking dyeing is 90 ℃, the soaking time is 50min, the dyeing water bath ratio is 28, and the second dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000101
the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
In the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 15min; in the step E, the shaping temperature is 125 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure BDA0002555703370000102
the moisture absorption quick-drying agent is a Luteff FERAN ICS moisture absorption quick-drying auxiliary agent; each part of the antistatic agent comprises 8 parts of tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 25 parts of water in parts by weight.
Example 2
The shrink-proof fabric easy to dye is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/80NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber.
The yarn length density of the face yarn is 24cm/100g; the yarn length density of the middle layer yarn is 41cm/100g, the fineness is 30D, and the hole number is 36F; the yarn length density of the base yarn is 24cm/100g, the fineness is 50D, and the hole number is 36F.
The preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step B, the temperature of the oil removal treatment is 78 ℃ and the treatment time is 23min; the degreasing agent is TX-1109 type degreasing agent.
In the step C, the temperature of the first soaking dyeing is 102 ℃, the soaking time is 48min, the dyeing water bath ratio is 29, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000111
each part of the cationic dye comprises 11 parts of cationic golden yellow X-GL, 16 parts of cationic blue X-RS and 3.5 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture composed of sodium chloride and sodium sulfate in a weight ratio of 2.5:1.2.
In the step C, the temperature of the first soaping is 68 ℃, the soaping time is 23min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping is carried out at 68 ℃ for 23min by adopting GC-501B type acid color fixing agent.
In the step C, the temperature of the second soaking dyeing is 92 ℃, the soaking time is 48min, the dyeing water bath ratio is 29, and the second dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000121
the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
In the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 18min; in the step E, the shaping temperature is 128 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure BDA0002555703370000122
the moisture absorption quick-drying agent is a Luteff FERAN ICS moisture absorption quick-drying auxiliary agent; each part of the antistatic agent comprises 9 parts of tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 28 parts of water in parts by weight.
Example 3
The shrink-proof fabric easy to dye is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/68NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber.
The yarn length density of the face yarn is 25cm/100g; the yarn length density of the middle layer yarn is 42cm/100g, the fineness is 50D, and the hole number is 72F; the yarn length density of the base yarn is 25cm/100g, the fineness is 50D, and the hole number is 36F.
The preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step B, the temperature of the oil removal treatment is 80 ℃ and the treatment time is 20min; the degreasing agent is TX-1109 type degreasing agent.
In the step C, the temperature of the first soaking dyeing is 105 ℃, the soaking time is 45min, the dyeing water bath ratio is 30, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000131
each part of the cationic dye comprises 13.5 parts of cationic golden yellow X-GL, 16.5 parts of cationic blue X-RS and 4 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture consisting of sodium chloride and sodium sulfate in a weight ratio of 3:2.5.
In the step C, the temperature of the first soaping is 70 ℃, the soaping time is 20min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping is carried out at 70 ℃ for 20min by adopting a GC-501B type acid color fixing agent.
In the step C, the temperature of the second soaking dyeing is 95 ℃, the soaking time is 45min, the dyeing water bath ratio is 30, and the second dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000141
the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
In the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 20min; in the step E, the shaping temperature is 130 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure BDA0002555703370000142
the moisture absorption quick-drying agent is a Luteff FERAN ICS moisture absorption quick-drying auxiliary agent; each part of the antistatic agent comprises 10 parts of tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 30 parts of water in parts by weight.
Example 4
The shrink-proof fabric easy to dye is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/50NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber.
The yarn length density of the face yarn is 27cm/100g; the yarn length density of the middle layer yarn is 44cm/100g, the fineness is 75D, and the hole number is 48F; the yarn length density of the base yarn is 27cm/100g, the fineness is 100D, and the hole number is 96F.
The preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step B, the temperature of the oil removal treatment is 83 ℃ and the treatment time is 18min; the degreasing agent is TX-1109 type degreasing agent.
In the step C, the temperature of the first soaking dyeing is 108 ℃, the soaking time is 42min, the dyeing water bath ratio is 31, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000151
Figure BDA0002555703370000161
each part of the cationic dye comprises 14 parts of cationic golden yellow X-GL, 17 parts of cationic blue X-RS and 4.5 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture of sodium chloride and sodium sulfate in a weight ratio of 3.5:1.8.
In the step C, the temperature of the first soaping is 73 ℃, the soaping time is 18min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping temperature is 73 ℃, the soaping time is 18min, and the second soaping adopts GC-501B type acid color fixing agent.
In the step C, the temperature of the second soaking dyeing is 98 ℃, the soaking time is 42min, the dyeing water bath ratio is 31, and the second dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000162
the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
In the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 23min; in the step E, the shaping temperature is 132 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure BDA0002555703370000163
Figure BDA0002555703370000171
the moisture absorption quick-drying agent is a Luteff FERAN ICS moisture absorption quick-drying auxiliary agent; each part of the antistatic agent comprises 11 parts of the tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 32 parts of water in parts by weight.
Example 5
The shrink-proof fabric easy to dye is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/40NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber.
The yarn length density of the face yarn is 28cm/100g; the yarn length density of the middle layer yarn is 45cm/100g, the fineness is 100D, and the hole number is 96F; the yarn length density of the base yarn is 28cm/100g, the fineness is 150D, and the hole number is 96F.
The preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step B, the temperature of the oil removal treatment is 85 ℃ and the treatment time is 15min; the degreasing agent is TX-1109 type degreasing agent.
In the step C, the temperature of the first soaking dyeing is 110 ℃, the soaking time is 40min, the dyeing water bath ratio is 32, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000172
Figure BDA0002555703370000181
each part of the cationic dye comprises 15 parts of cationic golden yellow X-GL, 18 parts of cationic blue X-RS and 5 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture consisting of sodium chloride and sodium sulfate in a weight ratio of 4:2.
In the step C, the temperature of the first soaping is 75 ℃, the soaping time is 15min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping is carried out at 75 ℃ for 15min by adopting a GC-501B type acid color fixing agent.
In the step C, the temperature of the second soaking dyeing is 100 ℃, the soaking time is 40min, the dyeing water bath ratio is 32, and the second dyeing liquid comprises the following raw materials in parts by weight:
Figure BDA0002555703370000182
the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
In the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 25min; in the step E, the shaping temperature is 135 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure BDA0002555703370000191
the moisture absorption quick-drying agent is a Luteff FERAN ICS moisture absorption quick-drying auxiliary agent; each part of the antistatic agent comprises 12 parts of tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 35 parts of water in parts by weight.
Comparative example 1
This comparative example differs from example 3 above in that:
the preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth in the step for the first time by using a first dye liquor, and then washing with water; then, soaking and dyeing for the second time by using a second dye liquor, and then washing with water to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step C, the soaping temperature is 70 ℃, the soaping time is 20min, and the GC-9001 type soaping agent is adopted for the soaping.
Comparative example 2
This comparative example differs from example 3 above in that:
the preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: soaking and dyeing the blank cloth subjected to the degreasing treatment in the step B by using a first dye liquor, and then washing and soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
Comparative example 3
This comparative example differs from example 3 above in that:
the preparation method of the shrink-proof fabric easy to dye comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: soaking and dyeing the blank cloth subjected to the degreasing treatment in the step B by using a second dye liquor, and then washing and soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: and D, performing heat setting treatment on the dyed fabric subjected to non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye.
In the step C, the soaping temperature is 70 ℃, the soaping time is 20min, and the soaping adopts a GC-501B type acid color fixing agent.
The fabrics prepared in example 3 and comparative examples 1 to 3 were subjected to related performance tests such as flatness, color fastness and the like, and the test items and test results are as follows:
Figure BDA0002555703370000201
Figure BDA0002555703370000211
the flatness grade is tested according to the national standard GB T13769-2009 test method for evaluating the appearance flatness of the washed textile, wherein the SA-5 grade is equivalent to the standard template SA-5, and represents the most flat appearance and the best original appearance flatness retention; the SA-1 level is equivalent to the standard template SA-1, and represents the least uneven appearance and the worst original flatness retention; the level 4.5 is intermediate between the standard template levels SA-4 and SA-5.
The washing fastness grade is tested according to AATCC61 standard A2, home or business machine washing is carried out at the temperature of 38+/-3 ℃, and the color change of the washing machine are tested by using a color matching instrument. The perspiration color fastness grade is tested according to AATCC15-2009 standard and perspiration resistance tester, and the color change condition change of the perspiration are tested by utilizing the color matching tester. The light fastness grade was tested according to AATCC16-2004 standard and the xenon arc lamp tester line, and the color change was tested using a colorimeter (with light fastness being eight-grade, worst 1-grade, best 8-grade).
Wherein the above-mentioned color change and staining condition change grades are respectively as follows:
grade Color change condition Color state
Grade 5.0 Negligible or no staining Negligible or no staining
4.5 grade Grade 4-5 equivalent to color-changing gray card Grade 4-5 corresponding to stained ash card
4.0 grade Grade 4 equivalent to color-changing gray card Grade 4 equivalent to stained ash card
3.5 grade Grade 3-4 equivalent to color-changing gray card Grade 3-4 corresponding to stained ash card
3.0 level Grade 3 equivalent to color-changing gray card Grade 3 equivalent to stained ash card
Grade 2.5 Grade 2-3 equivalent to color-changing gray card Grade 2-3 equivalent to stained ash card
2.0 level Grade 2 equivalent to color-changing gray card Grade 2 equivalent to stained ash card
Grade 1.5 Grade 1-2 equivalent to color-changing gray card Class 1-2 equivalent to stained gray card
1.0 level Grade 1 equivalent to color-changing gray card Class 1 equivalent to stained gray card
From the test data, the fabric prepared by the invention is soft and comfortable, skin-friendly and breathable, good in heat preservation, high in color fastness, not easy to deform or decolorize after washing, and high in stability.
In the fabric treatment process, the water washing fastness grade of the prepared fabric is 5.0, the perspiration color fastness is 5.0, and the light fastness is 8.0; in the fabric treatment process of the comparative example 1, the washing fastness of the prepared fabric only reaches 3.0/3.5 level, the perspiration fastness only reaches 2.5/3.5 level, the light fastness only reaches 6.0 level, and the comprehensive color fastness is obviously lower than that of the invention, which means that the washing treatment is carried out after each dyeing, the dye which is not stably and firmly attached to the fiber can be washed off, the flooding phenomenon (such as washing off the first dye liquor which is not stably attached to the cation dacron fiber and part of the second dye liquor, washing off the second dye liquor which is not stably attached to the shrink-proof wool fiber and part of the first dye liquor) is avoided, and simultaneously the corresponding washing assistant does not harm the adhesiveness of the other dye, such as the adopted GC-9001 type soap lotion is used for washing and dye fixing the first dye liquor which is not dyed, and damaging the adhesiveness of the second dye liquor on the wool fiber; the GC-501B acid color fixing agent can improve the adhesive force of acid dye on wool fibers, improve the dyeing rate of the second dye solution on the wool fibers, remove undyed flooding, and simultaneously do not influence the dyeing rate of the first dye solution on the cationic polyester fibers.
In comparative example 2, the fabric prepared by dyeing with the first dye liquor only has the water washing fastness reaching 3.5/3.5, the perspiration color fastness reaching 3.5/4.0, the light fastness reaching 6.5, and the comprehensive color fastness being lower than that of the fabric of the invention; and the comparative example 3 only adopts the second dye liquor for dyeing, the washing fastness of the prepared fabric only reaches 4.0/3.5 level, the perspiration color fastness only reaches 3.0/3.5 level, the light fastness only reaches 6.5 level, and the comprehensive color fastness is lower than that of the invention.
The dyeing method has the advantages that in the dyeing process, the cloth is dyed twice, the cationic polyester fiber is dyed by the first dye liquor, the shrink-proof wool fiber is dyed by the second dye liquor, the cationic polyester fiber and the shrink-proof wool fiber can be uniformly dyed by the two-time dyeing treatment, if the single dye is adopted to dye different fibers, if the single dye is adopted to dye the cationic fiber only, the adhesion of the dye to the shrink-proof wool fiber is lower, the dyeing rate of the shrink-proof wool fiber is lower, the dye is easy to fall off from the shrink-proof wool fiber in the subsequent process or the using process, and the color fastness of a finished product is obviously reduced; similarly, if the acid dye is adopted to dye the shrink-proof wool fiber, the adhesion force of the dye to the cationic polyester fiber and the internal diffusion performance of the fiber are lower, and the dye is easy to fall off from the cationic polyester fiber in the subsequent process or use process, so that the color fastness of the finished product is obviously reduced. Therefore, the invention can dye two kinds of fibers respectively by adopting two different dyes for dyeing, and compared with the traditional process of respectively dyeing and then weaving, the invention greatly improves the preparation and processing efficiency of the fabric.
The above embodiments are preferred embodiments of the present invention, and besides, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.

Claims (8)

1. An shrink-proof fabric easy to dye, which is characterized in that: the shrink-proof fabric is formed by weaving composite yarns, wherein the composite yarns are formed by laminating face yarns, middle yarns and bottom yarns, the face yarns form a surface layer after lamination forming, the middle yarns form a middle layer, and the bottom yarns form a bottom layer; the face yarn is 1/40NM-1/60NM shrink-proof wool fiber, the middle layer yarn is cationic polyester fiber, and the bottom yarn is cationic polyester fiber;
the preparation method of the shrink-proof fabric comprises the following steps:
A. weaving: knitting the surface yarn, the middle layer yarn and the bottom yarn respectively to obtain a piece of gray fabric;
B. oil removal treatment of the blank cloth: c, carrying out oil removal treatment on the embryo cloth prepared in the step A by using an oil removing agent;
C. dyeing: b, soaking and dyeing the deoiled embryo cloth for the first time by using a first dye liquor, and then washing with water and soaping for the first time; then, carrying out a second soaking dyeing by using a second dyeing liquid, and then carrying out water washing and a second soaping to obtain dyed cloth;
D. non-softening treatment: c, performing alkaline washing powder and non-softening cold running treatment on the dyed fabric prepared in the step C;
E. shaping: performing heat setting treatment on the dyed fabric subjected to the non-softening treatment in the step D by using a setting agent to obtain the shrink-proof fabric easy to dye;
in the step C, the temperature of the second soaking dyeing is 90-100 ℃, the soaking time is 40-50min, the dyeing water bath ratio is 28-32, and the second dyeing liquid comprises the following raw materials in parts by weight:
Figure FDA0003992804220000011
the acid coloring agent is acid black M-R; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the leveling agent is PL-SY type acid leveling agent.
2. The easily dyed shrink-proof fabric of claim 1, wherein: the yarn length density of the face yarn is 24-28cm/100g; the yarn length density of the middle layer yarn is 41-45cm/100g, the fineness is 30D-100D, and the hole number is 36F-96F; the yarn length density of the base yarn is 24-28cm/100g, the fineness is 50D-150D, and the hole number is 36F-96F.
3. The method for preparing the shrink-proof fabric easy to dye according to claim 1, which is characterized in that: in the step B, the oil removal treatment temperature is 75-85 ℃ and the treatment time is 15-25min; the degreasing agent is TX-1109 type degreasing agent.
4. The method for preparing the shrink-proof fabric easy to dye according to claim 1, which is characterized in that: in the step C, the temperature of the first soaking dyeing is 100-110 ℃, the soaking time is 40-50min, the dyeing water bath ratio is 28-32, and the first dyeing liquid comprises the following raw materials in parts by weight:
Figure FDA0003992804220000021
5. the method for preparing the shrink-proof fabric easy to dye according to claim 4, which is characterized in that: each part of the cationic dye comprises 10-15 parts of cationic golden yellow X-GL, 15-18 parts of cationic blue X-RS and 3-5 parts of cationic black X-OS; the anti-settling agent is IW-103 anti-settling agent of Guangdong megaday textile technology Co., ltd; the accelerating agent is a mixture composed of sodium chloride and sodium sulfate in a weight ratio of 2-4:1-2.
6. The method for preparing the shrink-proof fabric easy to dye according to claim 1, which is characterized in that: in the step C, the temperature of the first soaping is 65-75 ℃, the soaping time is 15-25min, and the GC-9001 type soaping agent is adopted for the first soaping; the second soaping is carried out at 65-75 ℃ for 15-25min, and the second soaping adopts GC-501B type acid color fixing agent.
7. The method for preparing the shrink-proof fabric easy to dye according to claim 1, which is characterized in that: in the step D, the non-soft cold line treatment adopts citric acid cold line treatment for 15-25min; in the step E, the shaping temperature is 125-135 ℃, and the shaping agent comprises the following raw materials in parts by weight:
Figure FDA0003992804220000031
8. the method for preparing the shrink-proof fabric easy to dye according to claim 1, which is characterized in that: the moisture absorption quick-drying agent is a Luteff FERAN ICS moisture absorption quick-drying auxiliary agent; each part of antistatic agent comprises 8-12 parts of tris (hydroxyethyl) methyl quaternary ammonium methyl sulfate and 25-35 parts of water by weight.
CN202010589071.5A 2020-06-24 2020-06-24 Shrink-proof fabric easy to dye and preparation method thereof Active CN113832605B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010589071.5A CN113832605B (en) 2020-06-24 2020-06-24 Shrink-proof fabric easy to dye and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010589071.5A CN113832605B (en) 2020-06-24 2020-06-24 Shrink-proof fabric easy to dye and preparation method thereof

Publications (2)

Publication Number Publication Date
CN113832605A CN113832605A (en) 2021-12-24
CN113832605B true CN113832605B (en) 2023-07-07

Family

ID=78964589

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010589071.5A Active CN113832605B (en) 2020-06-24 2020-06-24 Shrink-proof fabric easy to dye and preparation method thereof

Country Status (1)

Country Link
CN (1) CN113832605B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741499A (en) * 2013-12-09 2014-04-23 苏州禄千纺织咨询服务有限公司 Multifunctional high-shrinkage fabric
CN104047102A (en) * 2014-07-10 2014-09-17 广东兆天纺织科技有限公司 Moisturizing skin care warm-keeping knitted fabric and production technology thereof
CN106192177A (en) * 2016-08-31 2016-12-07 武汉爱帝高级服饰有限公司 Knitting fabric of one-way wet-guide moisture absorption heating and preparation method thereof
CN107574544A (en) * 2017-09-29 2018-01-12 上海嘉麟杰纺织品股份有限公司 A kind of wet-guide quick-drying wool knitting fabrics and preparation method thereof
CN110774683A (en) * 2019-05-07 2020-02-11 东莞世丽纺织有限公司 Fabric with low water washing shrinkage and preparation process thereof
CN110904570A (en) * 2019-12-10 2020-03-24 东莞世丽纺织有限公司 Ultraviolet-resistant moisture-absorbing quick-drying fabric and preparation process thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103074715B (en) * 2013-01-16 2014-06-25 广东兴泰发展有限公司 Yarn for high-flame-retardant acrylic cotton protective garment plus material and cheese yarn dyeing method and weaving method of yarn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741499A (en) * 2013-12-09 2014-04-23 苏州禄千纺织咨询服务有限公司 Multifunctional high-shrinkage fabric
CN104047102A (en) * 2014-07-10 2014-09-17 广东兆天纺织科技有限公司 Moisturizing skin care warm-keeping knitted fabric and production technology thereof
CN106192177A (en) * 2016-08-31 2016-12-07 武汉爱帝高级服饰有限公司 Knitting fabric of one-way wet-guide moisture absorption heating and preparation method thereof
CN107574544A (en) * 2017-09-29 2018-01-12 上海嘉麟杰纺织品股份有限公司 A kind of wet-guide quick-drying wool knitting fabrics and preparation method thereof
CN110774683A (en) * 2019-05-07 2020-02-11 东莞世丽纺织有限公司 Fabric with low water washing shrinkage and preparation process thereof
CN110904570A (en) * 2019-12-10 2020-03-24 东莞世丽纺织有限公司 Ultraviolet-resistant moisture-absorbing quick-drying fabric and preparation process thereof

Also Published As

Publication number Publication date
CN113832605A (en) 2021-12-24

Similar Documents

Publication Publication Date Title
CN102631030B (en) Imitated silk high-elasticity knitted underwear fabric and preparation method thereof
CN102080295B (en) Cotton-diacetate cellulose fiber jacquard fabric and processing method thereof
CN102797104B (en) Processing method of Sorona and silk clothes fabric
CN101671950A (en) Piecedyed jet black fine-spun facing and preparation method thereof
CN103541222B (en) Down proof fabric
CN111172654B (en) Production process of super-soft elastic knitted fabric with energy-saving and emission-reducing effects
CN113684584B (en) Preparation method of pure cotton yarn-dyed high-count high-density non-ironing fabric
CN103535950B (en) Production method of down proof fabric
CN110079924B (en) Graphene-containing fabric and preparation method thereof
CN105124816A (en) Manufacture method of machine-washable wool-cashmere blended woolen knitting cashmere sweater
CN103374776A (en) Polyester-nylon-woven elastic fabric and producing method thereof
CN108754807B (en) Production method of wrinkled weft-knitted fabric
CN103572465B (en) Preparation method of down proof fabric
CN113832605B (en) Shrink-proof fabric easy to dye and preparation method thereof
CN114197200A (en) Manufacturing method of all-cotton durable shape-preserving rib fabric
CN105926136A (en) Production process of heat insulation fabric
CN103556376A (en) Imitation PU leather high-end knitted fabric and production method thereof
CN113417055A (en) Interwoven fabric of cotton fiber, spandex fiber and polyester fiber and production method
CN112553927A (en) Chitin silk fabric and processing technology thereof
CN104611954B (en) One-bath dyeing method for dyeing cotton-acrylic fabric with direct dye and cationic dye
CN102978815A (en) Surface tensile shearing antistatic bodkin single-side woolen and production method thereof
CN113445304B (en) Mulberry silk and cuprammonium rayon blended fabric and preparation method thereof
CN101613961B (en) Dyeing process for wool, silk and soybean fiber woven fabric
CN111910449B (en) Warm-keeping fabric and preparation process thereof
CN113913990B (en) Antibacterial quick-drying fabric and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Huang Qingqiang

Inventor after: Xue Yongliang

Inventor after: Xu Guohua

Inventor after: Zhong Jiazhang

Inventor after: Wu Xiaowei

Inventor before: Huang Qingqiang

Inventor before: Xue Yongliang

Inventor before: Xu Guohua

Inventor before: Zhong Jiazhang

Inventor before: Wu Xiaowei

GR01 Patent grant
GR01 Patent grant