CN113737550A

CN113737550A - Yarn coloring method, yarn, preparation method of jacquard fabric and jacquard fabric

Info

Publication number: CN113737550A
Application number: CN202110831131.4A
Authority: CN
Inventors: 张坚; 李霞晖; 陈必元; 薛矛; 盛崤敏
Original assignee: Guangdong Esquel Textiles Co Ltd
Current assignee: Guangdong Kangpai Huanchuang Technology Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-03

Abstract

The invention provides a yarn coloring method, a yarn, a fabric processing method and a fabric, wherein the yarn coloring method comprises the following steps: dyeing the white yarn and/or the stock solution coloring yarn by using a dye to prepare a colored yarn with a preset color, wherein fibers in the white yarn and the stock solution coloring yarn comprise cellulose fibers, and the using amount of the dye is less than 2.5% of the mass of the stock solution coloring yarn; and carrying out resin finishing on the colored yarns to enable hydroxyl groups on the colored yarns to react in the resin finishing process. Furthermore, the colored yarns and the second yarns are woven into the jacquard fabric together and then subjected to subsequent dyeing, so that the color diversity of the fabric can be improved under the condition of ensuring the rubbing fastness of the fabric.

Description

Yarn coloring method, yarn, preparation method of jacquard fabric and jacquard fabric

Technical Field

The invention relates to the technical field of spinning, in particular to a yarn coloring method, yarns, a preparation method of jacquard fabric and the jacquard fabric.

Background

In the textile industry, cellulose yarns such as viscose, modal, tencel and the like have the advantages of no physiological toxicity and degradability. In addition, the fine denier fibers can endow the knitted fabric with very soft wearing performance, have the advantages of high hygroscopicity, difficult wrinkling after washing and the like, are very suitable for preparing textiles which are in direct contact with the body, such as daily wear, pajamas, sportswear, lace ornaments and the like, and bring excellent use experience to users.

The fabrics made of the fine denier fibers have better using performance, and can be prepared into jacquard fabrics in order to simultaneously endow the fabrics with excellent visual performance. The jacquard is a concave-convex pattern formed by interlacing warp and weft of the textile. Jacquard fabrics typically require a plurality of different colored yarns. In the conventional technology, the yarn is usually dyed by using dye to obtain the yarn with the required color, and the yarn with the dark color usually needs to attach more dye on the yarn. When the dye is used in an excessively high amount, the wet crockfastness of the fabric will be difficult to achieve 4.0. In a wet state, a fabric with wet rubbing fastness of not more than 4.0 can be stained with a white fabric, and can be rubbed with skin to stain the skin. Therefore, the application scenarios of the fabric with wet rubbing fastness lower than 4.0 are extremely limited.

The primary liquid colored fine denier fiber is called as primary liquid colored filament, and the color fastness is good. The dry and wet rubbing fastness of the stock solution dyed yarn is more than 4.0, so that the problems can be well overcome. However, the preparation process of the stock solution colored yarns of the fine denier fibers such as viscose, modal and tencel is complex, large in one-time production batch, very limited in color types, and not suitable for the requirements of color differentiation and diversification in jacquard fabrics, especially for partial orders which are not large in order quantity and need to be delivered quickly. Therefore, how to prepare the jacquard fabric with various colors and qualified wet rubbing fastness under the condition of limited color of the stock solution coloring silk becomes a problem which needs to be solved urgently.

Disclosure of Invention

Based on this, there is a need for a yarn coloring method and a corresponding yarn for preparing fabrics with various colors and qualified rubbing fastness under the condition of limited dope dyed silk color. Correspondingly, a fabric processing method and a corresponding fabric are provided at the same time.

According to one embodiment of the invention, a method of coloring a yarn comprises the steps of:

dyeing white yarns and/or stock solution dyed yarns by using dyes to prepare dyed yarns with preset colors, wherein fibers in the white yarns and the stock solution dyed yarns comprise cellulose fibers, and the use amount of the dyes is less than 2.5% of the total mass of the dyed yarns;

and carrying out resin finishing on the colored yarns to enable hydroxyl groups on the colored yarns to react in the resin finishing process.

In one embodiment, the step of resin finishing the pigmented yarns comprises: and performing resin finishing on the colored yarn by adopting an anti-staining treatment agent, wherein the anti-staining treatment agent comprises a solvent and a solute dispersed in the solvent, and the solute comprises 20-80 g/L of resin finishing agent and 20-100 g/L of catalyst.

In one embodiment, the catalyst is selected from one or more of zinc salts, ammonium salts, magnesium salts, and aluminum salts.

In one embodiment, the resin finishing step specifically comprises: firstly, soaking the colored yarns in the anti-staining treatment agent for 20-40 min, and then baking the colored yarns at 110-160 ℃.

In one embodiment, the dye is used in an amount of 1.5% to 2.5% of the total mass of the dyed yarn in the process of preparing the colored yarn.

Correspondingly, the invention also provides the yarn prepared by the yarn coloring method in the embodiment.

Further, according to another embodiment of the present invention, there is provided a method for preparing a jacquard fabric, comprising the steps of:

knitting a combination of a first yarn and a second yarn to form a jacquard fabric, wherein the first yarn is the yarn according to the embodiment, and the second yarn comprises white yarn without resin finishing and/or dope dyed yarn without resin finishing;

and carrying out dyeing processing treatment on the jacquard fabric, wherein the consumption of the dye in the dyeing processing treatment is less than 1.5% of the mass of the jacquard fabric.

In one embodiment, when knitting is performed with the first yarn and the second yarn to form a jacquard fabric, knitting is also performed with a third yarn, which is a resin-finished white yarn and/or a resin-finished dope dyed yarn.

In one embodiment, after the jacquard fabric is subjected to dyeing processing treatment, the method further comprises the step of fixing the jacquard fabric by using a crockfastness improver.

In one embodiment, the first yarn, the second yarn and the third yarn are made of one or more materials selected from modal, viscose and tencel.

In one embodiment, during the dyeing process of the jacquard fabric, the dye is selected from one or more of yellow dye, blue dye and red dye.

Correspondingly, the invention also provides the jacquard fabric prepared by the preparation method of the jacquard fabric according to any one of the embodiments.

In order to overcome the problem that the variety of colors in jacquard fabrics is increased under the condition of limited stock solution coloring silk existing in the prior art, one embodiment of the invention firstly provides a yarn coloring method. The yarn coloring method comprises coloring treatment and resin finishing, more and darker colors can be given to the yarns in the coloring treatment process, and the color diversity of the yarns is improved. Meanwhile, in order to prevent the yarn from being stained in the dyeing process after being woven into the fabric, the yarn needs to be subjected to resin finishing after being subjected to color adding treatment in consideration of the specific requirements of the subsequent preparation of jacquard fabric. The resin finishing can seal the hydroxyl on the yarn, and has better stability under the conditions of weak acid, weak alkali and high-temperature soaking. This prevents the yarn from being dyed again in a subsequent process.

Furthermore, the colored yarns and the second yarns are woven into the jacquard fabric together, the white yarns and/or the stock solution colored yarns can be further dyed in the subsequent dyeing process, the yarns after resin finishing cannot be obviously changed in the subsequent dyeing process, the rubbing fastness of the white yarns and the yarns after resin finishing can be met, the color diversity of the jacquard fabric is improved, and the diversified demands of the market are met.

Detailed Description

In order that the invention may be more fully understood, reference will now be made to the following description. Preferred embodiments of the present invention are presented herein. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. As used herein, "plurality" includes two and more than two items. As used herein, "above a certain number" should be understood to mean a certain number and a range greater than a certain number.

The main problems encountered in the conventional art in the preparation of jacquard fabrics are as follows. On the one hand, limited by the long cycle time and complicated production process of the dope dyed yarns, the practically available dope dyed yarns have very limited colors, such as usually only black, gray, red, blue, yellow and green, in which case it is difficult to prepare a colorful jacquard fabric. To solve this problem, one embodiment of the present invention provides a yarn coloring method and a fabric processing method.

dyeing white yarns and/or stock solution colored yarns by using dyes to prepare colored yarns with preset colors, wherein fibers in the white yarns and the stock solution colored yarns comprise cellulose fibers, and the using amount of the dyes is less than 2.5% of the total mass of the dyed yarns;

According to a further embodiment of the invention, a method of processing a fabric comprises the steps of:

the method includes the steps of combining yarn raw materials including a first yarn and a second yarn to weave a jacquard fabric, and performing dyeing processing on the jacquard fabric, wherein the first yarn is the yarn according to the embodiment, and the second yarn includes white yarn without resin finishing and/or stoste coloring yarn.

In order to facilitate understanding of the overall technical concept of the present invention, the following description describes the above yarn coloring method and fabric processing method in the complete preparation process of preparing a colorful jacquard fabric from basic dope dyed yarns and white yarns.

It is first necessary to provide white yarns and/or dope dyed yarns. The dope dyed yarn comprises dope dyed black, gray, red, blue, yellow and green yarn, and the white yarn is the undyed white blank yarn. The spun colored yarn may be a single color yarn or a yarn obtained by mixing yarns of a plurality of colors. The material of the primary color yarn comprises cellulose; in one specific example, the material of the primary color yarn is specifically selected from one or more of viscose, modal and tencel.

In order to enrich or deepen the color of the yarn, the primary color yarn can be subjected to additive color treatment in a mode of re-dyeing by adopting reactive dyes. Specifically, for example, the primary color yarn may be red yarn, and the red yarn is subjected to additive color treatment by using a red reactive dye to deepen the color of the primary color yarn, so as to obtain a deep red yarn; for another example, the primary color yarn may be white yarn, and the white yarn is colored with red dye to be red; for another example, the primary color yarn may be red yarn, and the red yarn is colored with yellow dye to be orange.

In one specific example, the dope dyed yarn is dyed with a dye, and the dye has the same color as the primary yarn, to darken the primary yarn to obtain a darkened primary yarn.

The dyed yarns in the stock solution have high dry and wet rubbing fastness and are not easy to fade, but the yarns after further dyeing have low dry and wet rubbing fastness and are easy to fade, so that the yarns are difficult to directly serve as the raw materials of the fabrics for spinning. In addition, in the overall technical concept of fabric preparation, after the yarn is prepared into a fabric in order to enrich the color of the fabric, the fabric needs to be further dyed, and in this case, the dope dyed yarn needs to be prevented from fading or further bleaching with other colors.

In order to overcome the problems, the yarn coloring method also provides a method for carrying out resin finishing on the colored yarn. The main purpose of the resin finishing is to improve the shrinkage or wrinkling phenomenon of the fabric during wear. The resin finishing agent used for resin finishing is an initial condensation body of a resin monomer, and is dissolved in water. After being baked and melted at high temperature, the fabric is subjected to crosslinking or self-crosslinking reaction with fiber molecules to form a reticular macromolecule, so that the fabric is endowed with the performances of wrinkle resistance, low shrinkage rate, ironing free and the like. Commonly used resin finishes are typically the precondensates of the resin, and specific classes of resin finishes include urea-formaldehyde resins, melamine-formaldehyde resins, thiourea resins, and epoxy resins. The initial condensate of the resin finishing agent can be dissolved in water or solvent, and after the initial condensate permeates into the fiber, the initial condensate is baked at high temperature, and the active groups and the hydroxyl groups in the long-chain molecules of the cellulose generate covalent crosslinking reaction to link the adjacent molecular chains of the cellulose fiber.

Generally, the resin and a plurality of hydroxyl groups in a plurality of cellulose molecules form covalent crosslinking to mutually link adjacent cellulose molecular chains, so that deformation which cannot be immediately recovered due to hydrogen bond disintegration is reduced, and the recovery capability of the fiber from the deformation can be remarkably improved. Thus, in the conventional art, a resin finishing agent is generally used for the treatment of fabric, not yarn, and its main purpose is to prevent or improve the shrinkage or wrinkle phenomenon of the fabric during wearing. The inventors have found that the resin finishing agent acts on the fabric to improve shrinkage and wrinkling of the fabric, and also acts to prevent further dyeing of the yarn when applied to the yarn, possibly primarily due to the ability of the resin finishing agent to block hydroxyl groups on the surface of the cellulose.

In one specific example, the colored yarns are subjected to resin finishing treatment by using an anti-staining treatment agent, the anti-staining treatment agent comprises a solvent and a solute dispersed in the solvent, the solute comprises 20 g/L-80 g/L of resin finishing agent and 20 g/L-100 g/L of catalyst, and the catalyst is used for catalyzing the reaction between the resin finishing agent and the yarns.

The catalyst is selected from one or more of zinc salt, ammonium salt, magnesium salt and aluminum salt. Tests show that the resin finishing agent in the concentration range can endow the yarn with higher rubbing fastness and better anti-staining performance under the condition of ensuring the mechanical performance of the yarn. In one specific example, the catalyst may be selected from one or more of zinc nitrate, zinc chloride, magnesium chloride, ammonium sulfate, ammonium nitrate, ammonium dihydrogen phosphate, and diammonium hydrogen phosphate. Optionally, the catalyst is selected from magnesium chloride.

In one specific example, the stain-resistant treatment agent is selected from one or more of urea-formaldehyde resin, melamine-formaldehyde resin, thiourea resin, and epoxy resin. For example, the resin finish is selected from the group consisting of high chemical F-ECO.

In one specific example, the step of the staining prevention treatment specifically comprises: firstly, the colored yarns are soaked in the anti-staining treatment agent for 20-40 min, and then the fabric is baked at 110-160 ℃.

The colored yarn is soaked in the anti-staining treatment agent for 20-40 min, so that the resin finishing agent is fully soaked into cellulose in the yarn, and the closed number of hydroxyl groups in the yarn is increased as much as possible. Optionally, the colored yarn is soaked in the anti-staining treatment agent for 20min, 25min, 30min or 35 min.

The fabric is baked at 110-160 ℃, so that the reaction rate of the yarn and the resin finishing agent can be increased, and the catalytic performance of the catalyst can be improved.

Even with the above described anti-staining finishes, the dry and wet crockfastness of the yarn may still be difficult to meet. Thus, in one specific example, the dye is used in an amount of 1.5% to 2.5% of the total mass of the dyed yarn during the coloring process. The dye consumption is controlled to be 1.5% -2.5% of the total mass of the dyed yarns, on one hand, the dye consumption in the mass range is enough to achieve the required color adding effect, and more importantly, when the dye consumption is in the mass range, the dyed yarns can have the qualified fastness after the anti-staining finishing, so that the rubbing fastness of the fabrics is ensured. When the amount of the dye used exceeds 2.5%, the crockfastness of the yarn may be greatly reduced. Even if the anti-staining treatment or even the subsequent color fixing treatment is carried out, the rubbing fastness of part of yarns still cannot meet the actual requirement. When the amount of the dye is less than 1.5%, the yarn may not be dyed to a sufficient depth, and thus the color range of the fabric may not be widened.

In one specific example, the dye is controlled to be 1.5-2.0% of the quality of the primary color yarn in the process of preparing the color-added yarn. The rubbing fastness of the yarn can be further ensured by controlling the using amount of the dye to be 1.5-2.0% of the original color yarn.

Further, according to another embodiment of the present invention, there is also provided a yarn prepared according to the above yarn processing method.

The stain resistant treated yarns prepared from the above examples can be further applied to jacquard fabrics.

Specifically, the fabric processing method comprises the following steps:

combining yarn raw materials including a first yarn and a second yarn to weave a jacquard fabric, and carrying out dyeing processing treatment on the jacquard fabric, wherein the first yarn is the yarn according to the embodiment, and the second yarn is selected from white yarn and/or stoste coloring yarn.

Wherein the second yarn may be selected from yarns of a single color, such as: white, black, yellow, blue, red or gray yarns; the second yarn may also be selected from a combination of multi-colored yarns, such as a plurality of white, black, yellow, blue, red, and gray yarns.

The process of combining the first yarn and the second yarn to weave the jacquard fabric can refer to a common weaving method, and the specific pattern of the jacquard fabric can also refer to a preset pattern. It should be noted that, limited by the color type of the basic primary-color colored yarn, the jacquard fabric produced at this time may still not meet the actual requirement, so this embodiment also proposes to further dye the produced fabric to obtain the jacquard fabric with the color type meeting the requirement.

In one specific example, during the process of dyeing jacquard fabric, the dye liquor comprises dye, and the amount of the dye is less than 1.5% of the total mass of the jacquard fabric.

The dye in the dye liquor may be selected from coloured dyes. In one specific example, the dye in the dye solution may be selected from one or more of yellow dye, blue dye and red dye, wherein the specific amount of the yellow dye, the blue dye and the red dye may be adjusted according to the color mixing principle according to the actual requirement to obtain the required contrast color. In other embodiments, the dye in the dye liquor may be selected from orange dye, green dye and other colored dyes.

In one specific example, during the dyeing process, the dye liquor further comprises sodium sulfate and sodium carbonate. Specifically, in the process of dyeing processing, the jacquard fabric is added into the dye liquor and is kept at the temperature of 40-70 ℃ for 45-60 min. Further, after the temperature preservation, the jacquard fabric can be soaked in acetic acid.

In the step of dyeing processing, because the first yarn is subjected to the anti-staining treatment in advance, the first yarn is basically not dyed any more in the dyeing step, and the second yarn is dyed with richer colors, so that the color diversity of the jacquard fabric can be effectively and conveniently increased. In order to ensure as far as possible the crockfastness of jacquard fabrics, the yarn coloring method can be used to make yarns of dark colour, while the textile processing method can be used to make yarns of light colour, i.e. the first yarn is darker and the second yarn is lighter after the dyeing process.

In one specific example, after the fabric is subjected to the dyeing processing treatment, the method further comprises the step of fixing the fabric by using a crockfastness improver. Wherein, the color fixation can be realized by treating the jacquard fabric with a rubbing fastness improver. The main purpose of the fixing treatment carried out in this step is to increase the degree of dyeing in the preceding step, enabling the colour range of the fabric to be increased. The conventional rubbing fastness improver can only improve the rubbing fastness of a dark fabric by about 0.5 level generally, and even if the conventional rubbing fastness improver is directly applied to yarns which are not subjected to staining prevention treatment, the requirement on the rubbing fastness is still difficult to meet, however, after the dyeing treatment and the staining prevention treatment, the requirement on the rubbing fastness of the dark yarn is also more than or equal to 4.0, and the condition that the yarn is not faded can be ensured by further adopting color fixation treatment.

In one specific example, the yarn stock further includes a third yarn comprising a resin finished, spun-dyed yarn. The formulation and the processing method of the specific stain-proofing agent used in the resin finishing of the third yarn can be referred to the specific example of preparing the first yarn. The purpose of introducing the third yarn at the same time is to further increase the colour variety of the jacquard fabric. Specifically, as the third yarns are difficult to be dyed with new colors in the subsequent dyeing process through the anti-staining treatment, the original colors of the third yarns can be kept unchanged, and the introduction of the original colors of the third yarns into the jacquard fabric is facilitated.

Further, the invention also provides a fabric prepared by the fabric processing method according to the embodiment.

In the fabric, the dark color part of the fabric can be formed by a first yarn, the light color part can be formed by a second yarn, and the second yarn can be dyed into various colors by the existing partial white yarn and/or the stock solution coloring yarn according to the conventional dyeing process and based on the color mixing principle. The fabric formed in the way comprises dark colors and other mixed colors which are not possessed by the color types of the dope dyed yarns, and under the condition that the dope dyed yarns are not additionally prepared, the diversity of colors in the fabric is effectively widened. Further, if the original color of the dope dyed yarn is required, a third yarn can be introduced to achieve the purpose.

In order that the invention may be more readily understood and put into practical effect, reference is also made to the following more specific and detailed examples and comparative examples. The embodiments of the present invention and their advantages will also be apparent from the description of specific examples and comparative examples below, and the performance results.

The raw materials used in the following examples are all commercially available without specific reference.

In the following examples:

the red dye is s.s.red 3BF 150% of sumitomo;

yellow dye is s.s yellow 3RF 150% of sumitomo;

blue dye is s.s.blue BRF 150% of sumitomo japan;

the soaping agent is DM-1573 of Germany chemical industry;

the resin finishing agent is F-ECO of high chemical ARCHROMA;

the crockfastness improver is FISSAT PEK from GIOVANNI BOZZETTO (SHANGHAI).

The black, yellow, blue and red filaments are dope-colored filaments.

Example 1

(1) Preparing a first yarn:

the red filament is used as the primary color yarn, the specification of the filament is 150D/30F, and the twist is 200-300.

Carrying out additive color treatment on the primary color yarn: winding 100kg of primary-color yarn into a bobbin thread, hanging the bobbin thread into a yarn dyeing cylinder, adding 1000L of water, adding 2kg of red dye, 50kg of sodium sulfate and 15kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving the temperature for 45-60 min, and draining; feeding water, adding 1.5kg of 99% acetic acid, running a yarn dyeing vat for 10min, and draining; feeding water, adding 2kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (3) feeding water, heating to 80 ℃, running for 10-20 min, and draining to obtain the colored yarn.

Soaking the colored yarns into an anti-staining treatment agent in batches for anti-staining treatment, wherein the anti-staining treatment agent comprises 50L of water, 3kg of resin finishing agent and 4kg of catalyst magnesium chloride, and 5kg of the anti-staining treatment agent is used each time; treating in a special yarn dyeing vat for 5-20 min, taking out and dehydrating, and baking at 150 ℃ for 10min to obtain first yarn.

(2) Preparing a second yarn:

white filaments and yellow filaments were used together as the second yarn.

(3) Preparing a third yarn:

and (3) immersing the black filaments and the blue filaments in an anti-staining treatment agent for anti-staining treatment to obtain third yarns.

(4) 2.5Kg of the first yarn, 10.0Kg of the second yarn and 2.5Kg of the third yarn are woven together into a jacquard woven tape.

(5) Winding 15kg of jacquard woven tape into a shaft, hanging the shaft into a dyeing machine, adding 70L of water, adding 0.05kg of yellow dye, 0.05kg of blue dye, 0.05kg of red dye, 3kg of sodium sulfate and 1.5kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving heat for 45-60 min, and draining; feeding water, adding 0.15kg of 99% acetic acid, running for 10min, and draining; feeding water, adding 0.06kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (4) feeding water, heating to 80 ℃, running for 10-20 min, and draining.

(6) Fixing color of the jacquard woven tape, adding 0.2kg of friction fastness improver into 10L of water to prepare a color fixing solution, adding 1kg of jacquard woven tape into the color fixing solution, soaking for 30min, and dehydrating and drying.

Example 2

(1) Preparing a first yarn:

white filaments are used as primary color yarns, the specification of the filaments is 150D/30F, and the filaments are twisted by 200-300.

(2) Preparing a second yarn:

using the white filaments as second yarns;

(3) preparing a third yarn:

and (3) immersing the black filaments into an anti-staining treatment agent for anti-staining treatment to obtain third yarns.

(4) The first yarn 5.0Kg, the second yarn 5.0Kg and the third yarn 5.0Kg are woven together into a jacquard woven belt.

(5) Winding 15kg of jacquard woven tape into a shaft, hanging the shaft into a dyeing machine, adding 70L of water, 0.01kg of yellow dye, 0.015kg of blue dye, 0.05kg of red dye, 3kg of sodium sulfate and 1.5kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving heat for 45-60 min, and draining; feeding water, adding 0.15kg of 99% acetic acid, running for 10min, and draining; feeding water, adding 0.06kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (4) feeding water, heating to 80 ℃, running for 10-20 min, and draining.

Comparative example 1

(1) Preparing a first yarn:

Immersing the red filaments into an anti-staining treatment agent in batches for anti-staining treatment, wherein the anti-staining treatment agent comprises 50L of water, 3kg of resin finishing agent and 4kg of catalyst magnesium chloride, and 5kg of the anti-staining treatment agent is added each time; treating in a special yarn dyeing vat for 5-20 min, taking out and dehydrating, and baking at 150 ℃ for 10min to obtain first yarn.

(2) Preparing a second yarn:

white filaments and yellow filaments were used together as the second yarn.

(3) Preparing a third yarn:

(5) Winding 15kg of jacquard woven tape into a shaft, hanging the shaft into a dyeing machine, adding 70L of water, 0.05kg of yellow dye, 0.05kg of blue dye, 0.05kg of red dye, 3kg of sodium sulfate and 1.5kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving heat for 45-60 min, and draining; feeding water, adding 0.15kg of 99% acetic acid, running for 10min, and draining; feeding water, adding 0.06kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (4) feeding water, heating to 80 ℃, running for 10-20 min, and draining. Wherein the first yarn has a substantially constant color and the second yarn has a substantially constant color of the resin-finished black and blue filaments.

Comparative example 2

(1) Preparing a first yarn:

carrying out additive color treatment on the primary color yarn: winding 100kg of primary-color yarn into a bobbin thread, hanging the bobbin thread into a yarn dyeing cylinder, adding 1000L of water, adding 2kg of red dye, 50kg of sodium sulfate and 15kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving the temperature for 45-60 min, and draining; feeding water, adding 1.5kg of 99% acetic acid, running a yarn dyeing vat for 10min, and draining; feeding water, adding 2kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (3) feeding water, heating to 80 ℃, running for 10-20 min, and draining to obtain colored yarn as first yarn.

(2) Preparing a second yarn:

white filaments and yellow filaments were used together as the second yarn.

(3) The first yarn 5.0Kg and the second yarn 10.0Kg are woven together into a jacquard woven tape.

(4) Winding 15kg of jacquard woven tape into a shaft, hanging the shaft into a dyeing machine, adding 70L of water, adding 0.05kg of yellow dye, 0.05kg of blue dye, 0.125kg of red dye, 3kg of sodium sulfate and 1.5kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving heat for 45-60 min, and draining; feeding water, adding 0.15kg of 99% acetic acid, running for 10min, and draining; feeding water, adding 0.06kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (4) feeding water, heating to 80 ℃, running for 10-20 min, and draining. Wherein the first yarn is substantially unchanged in color.

(5) Fixing color of the jacquard woven tape, adding 0.2kg of friction fastness improver into 10L of water to prepare a color fixing solution, adding 1kg of jacquard woven tape into the color fixing solution, soaking for 30min, and dehydrating and drying.

Comparative example 3

(1) Preparing a first yarn:

(2) Preparing a second yarn:

white filaments and yellow filaments were used together as the second yarn.

(3) Preparing a third yarn:

(4) And weaving the first yarn, the second yarn and the third yarn into jacquard woven belts together.

(5) Carrying out color fixing treatment on 15kg of jacquard woven tape, adding 0.2kg of friction fastness improver into 10L of water to prepare a color fixing solution, adding 1kg of jacquard woven tape into the color fixing solution, soaking for 30min, and dehydrating and drying.

Comparative example 4

(1) Preparing a first yarn:

(2) Preparing a second yarn:

white filaments and yellow filaments were used together as the second yarn.

(3) Preparing a third yarn:

(4) 2.0Kg of the first yarn, 10.0Kg of the second yarn and 3.0Kg of the third yarn are woven together into a jacquard woven tape.

Comparative example 5

(1) Preparing a first yarn:

Carrying out additive color treatment on the primary color yarn: winding 100kg of primary-color yarn into a bobbin thread, hanging the bobbin thread into a yarn dyeing cylinder, adding 1000L of water, adding 3kg of red dye, 50kg of sodium sulfate and 15kg of sodium carbonate, heating to 60 ℃ at the heating rate of 1 ℃/min, preserving the temperature for 45-60 min, and draining; feeding water, adding 1.5kg of 99% acetic acid, running a yarn dyeing vat for 10min, and draining; feeding water, adding 2kg of soaping agent, heating to 95 ℃, running for 10-20 min, and draining; and (3) feeding water, heating to 80 ℃, running for 10-20 min, and draining to obtain the colored yarn.

(2) Preparing a second yarn:

white filaments and yellow filaments were used together as the second yarn.

(3) Preparing a third yarn:

Test examples

The dry and wet crockfastness of the jacquard fabric tapes in the examples and comparative examples was tested according to standard AATCC8, the water fastness of the jacquard fabric tapes in the examples and comparative examples was tested according to standard AATCC61, and the surface of the jacquard fabric was judged to be colored and flat according to appearance. The test results are shown in Table 1.

TABLE 1

The first yarn in example 1 was a red yarn subjected to color-adding treatment with a red dye and resin-finished, the second yarn was a white yarn and a yellow yarn, and the third yarn was a black yarn and a blue yarn subjected to resin-finished. In the step (5) of integral dyeing, white yarns and yellow yarns can be dyed to obtain the required mixed color, and the black yarns, the blue yarns and the red yarns are basically not discolored, so that the jacquard fabric with dark red, black, blue, required mixed color and other colors can be obtained, and the fastness of the fabric can meet the requirement of 4.0 and above.

Similarly, example 2 is substantially the same as example 1, except that: the raw materials adopted in the preparation of the first yarns are white yarns, the second yarns are also white yarns, the third yarns are black yarns subjected to resin finishing, and various fastnesses of the finally prepared jacquard fabric can meet requirements. This is suitable for preparing lighter colored jacquard fabrics.

Compared with example 1, the first yarn of comparative example 1 is not subjected to color-adding treatment, and although the prepared jacquard fabric has the fastness meeting the requirement, the dye consumption of the yarn in the subsequent dyeing process is below 1.5%, the jacquard fabric needing the added medium-dark color is difficult to prepare, and the color diversity of the yarn is obviously limited.

Compared with example 1, the first yarn of comparative example 2 is not resin finished, which not only causes the second yarn to be stained with variegated color in the dyeing process of step (5), but also causes the second yarn to be stained with more red dye, so that the wet rubbing fastness is only 2.5, and obvious staining occurs, and the requirement cannot be met.

Compared to example 1, the jacquard fabric of comparative example 3 was not subjected to a subsequent dyeing treatment, and although its crockfastness was satisfactory, the color of the jacquard fabric was limited to the color of the greige yarn itself. If the color types are required to be widened, the stock solution colored yarns with the corresponding colors need to be prepared again, and a large amount of process cost and time cost are required in the process, so that the market demand is difficult to meet.

Compared with example 1, the jacquard fabric of comparative example 4 is not subjected to color fixing treatment, and at this time, if the color of the first yarn is darker, the wet rubbing fastness of the jacquard fabric is only 3.5, so that a slight staining phenomenon is caused, and the practical use process is not facilitated.

Compared with example 1, the additive amount of the liquid dyed yarn in the comparative example 5 exceeds 2.5% and reaches 3.0%, so that the wet rubbing fastness of the jacquard fabric is only 3.0, and slight staining is caused.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A yarn coloring method is characterized by comprising the following steps:

2. A method of yarn coloring as in claim 1, wherein said step of resinating said colored yarn comprises: and performing resin finishing on the colored yarn by adopting an anti-staining treatment agent, wherein the anti-staining treatment agent comprises a solvent and a solute dispersed in the solvent, and the solute comprises 20-80 g/L of resin finishing agent and 20-100 g/L of catalyst.

3. The yarn coloring method of claim 2, wherein said catalyst is selected from one or more of zinc salts, ammonium salts, magnesium salts, and aluminum salts.

4. A method of coloring a yarn according to claim 3, wherein said step of resin finishing is in particular: firstly, soaking the colored yarns in the anti-staining treatment agent for 20-40 min, and then baking the colored yarns at 110-160 ℃.

5. A method according to any one of claims 1 to 4, wherein the dye is used in an amount of 1.5 to 2.5% by weight of the total mass of the dyed yarn in the process of preparing the colored yarn.

6. The yarn prepared by the yarn coloring method according to any one of claims 1 to 5.

7. A method for preparing jacquard fabric is characterized by comprising the following steps:

knitting in combination a first yarn and a second yarn to form a jacquard fabric, the first yarn being a yarn according to claim 6, the second yarn comprising a white yarn without a resin finish and/or a dope dyed yarn without a resin finish;

8. Jacquard fabric production method according to claim 7, characterized in that in the formation of the Jacquard fabric by weaving combining the first and the second yarns, a third yarn is also woven, which is a white yarn subjected to a resin finish and/or a dope dyed yarn subjected to a resin finish.

9. The method of claim 8, further comprising the step of fixing the jacquard fabric with a crockfastness improver after the jacquard fabric is subjected to the dyeing process.

10. Jacquard fabric production method according to claim 8, characterized in that the first, second and third yarns are each made of one or more materials selected from the group comprising modal, viscose and tencel.

11. Jacquard fabric production method according to any one of the claims 7-10, characterized in that during the dyeing process of the Jacquard fabric, the dyes are selected from one or more of the group consisting of yellow dyes, blue dyes and red dyes.

12. Jacquard fabric produced according to the method for the production of a Jacquard fabric according to any one of claims 7 to 11.