Production method for improving non-ironing property of cellulose fiber yarn-dyed fabric

Abstract

The invention belongs to the technical field of fabric production, and particularly relates to a production method for improving the non-ironing property of a cellulosic fiber yarn-dyed fabric. Comprising the following steps: S1, yarn dyeing, crosslinking and one-bath finishing: (1) pretreatment: carrying out oxygen bleaching on cellulosic fiber loose cheese in a cheese dyeing machine; (2) dyeing and cross-linking: carrying out dyeing and cross-linking one-bath finishing on the pretreated cheese in a cheese dyeing machine in a dip dyeing manner; (3) post-treatment: performing water washing, soaping and color fixing and softening treatment on the dyed and crosslinked cheese, and then drying to obtain a finished product yarn; s2, weaving: weaving the finished yarns as warp yarns and weft yarns on a weaving machine to form yarn-dyed fabrics; s3, performing non-ironing finishing on the fabric: performing dry crosslinking treatment or moist crosslinking treatment on the yarn-dyed fabric. Through two-step cross-linking of yarn dyeing cross-linking one-bath finishing and fabric non-ironing finishing, the strength of the fabric is not reduced, and the non-ironing performance can be improved by 0.2-0.3 level.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric production, and particularly relates to a production method for improving the ironing-free property of cellulose fiber color-woven fabrics. Background Art

[0002] Cellulose fiber is easy to obtain and can be biodegraded after use. Its fabrics have good wearing properties and are deeply favored by consumers. However, this type of fabric is easy to wrinkle during wearing and after washing, and its appearance is not very crisp, so it needs to be ironed. Therefore, iron-free finishing has become a very important link in the finishing of cellulose fiber fabrics.

[0003] Resin finishing is the most important and most commonly used method for cellulose fiber fabrics to achieve wrinkle-free properties. After the resin finishing agent is treated on the fabric, the resin particles with multiple functional groups can diffuse into the amorphous region of the fiber, condense under reaction conditions to form a network structure and deposit in the fiber, establish hydrogen bonds with the fiber molecules to entangle the fiber molecules with each other, limit the relative movement of the molecular chains, and make the fabric have better wrinkle resistance; the resin finishing agent can condense itself, but it is also possible to react with the hydroxyl groups on cellulose to form covalent cross-links between cellulose macromolecules, making the cellulose molecules less likely to deform and quickly return to their original positions after deformation, thereby improving the wrinkle resistance and wrinkle-free properties of the fabric. The amount of amorphous regions in the fiber determines the amount of resin required. The quality of wrinkle resistance and wrinkle-free properties is related to the number of cross-links formed in the fiber macromolecules. The more cross-links there are, the better the wrinkle resistance and wrinkle-free properties of the fabric, but the strength of the fabric will decrease due to excessive cross-links. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a production method for improving the wrinkle-free property of cellulose fiber color-woven fabrics, by two-step crosslinking of yarn dyeing crosslinking in one bath finishing and fabric wrinkle-free finishing, so as to improve the wrinkle resistance and wrinkle-free property of the fabric without affecting the strength of the fabric.

[0005] The production method for improving the non-ironing property of cellulose fiber color-woven fabrics of the present invention comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: The cellulose fiber loose cheese yarn is oxygen bleached in a cheese yarn dyeing machine; (2) Dyeing and cross-linking: The pre-treated cheese yarn is dyed and cross-linked in the cheese yarn dyeing machine by immersion dyeing. (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, fixed and softened, and then dried to obtain the finished yarn; S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form dyed woven fabrics on a loom.

[0006] S3, fabric non-ironing finishing: the yarn-dyed fabric is subjected to dry cross-linking treatment or wet cross-linking treatment; The small molecule cross-linking agent used in the cross-linking in step (2) is a polyazine compound.

[0007] The oxygen bleaching, dyeing cross-linking and color fixing softening equipment in step S1 is a cheese dyeing machine, the drying equipment is a radio frequency dryer, the cheese weight is 0.5-1 kg, and the cheese density is 0.36-0.38 g / cm 3 .

[0008] The oxygen bleaching process described in step S1 is: chelating agent SQ-B: 0.1~0.5g / L, scouring agent SA-E: 1~4g / L, caustic soda: 1~4g / L, hydrogen peroxide: 0.1~10g / L (concentration is 27.5wt.%), temperature 90~110℃, time 10~60min.

[0009] The dyeing and cross-linking one-bath finishing process described in step S1 is as follows: the dye is a medium-temperature or high-temperature reactive dye, the dye concentration is 0.1-8% of the weight of the cheese yarn, the amount of the small molecule cross-linking agent is 3-4% of the weight of the cheese yarn, sodium sulfate: 10-80 g / L, soda ash: 10-25 g / L, and the bath ratio is 1:6-1:12.

[0010] The process flow of the dry cross-linking treatment process in step S3 includes singeing → desizing → mercerizing → (liquid ammonia) → (water washing) → ironing → baking → (water washing) → (stretching) → pre-shrinking. The process flow of the dry cross-linking treatment process may also include the process in the above brackets.

[0011] The process flow of the moisture crosslinking treatment process in step S3 includes singeing→desizing→mercerizing→(liquid ammonia)→(water washing)→pre-softening→moisture crosslinking→water washing→stretching→pre-shrinking. The process flow of the moisture crosslinking treatment process may also include the process in the above brackets.

[0012] The initial dyeing temperature of the medium-temperature reactive dye is 50°C. At 50°C, after adding sodium sulfate in the dyeing machine for 20 minutes, the dye and the small molecule cross-linking agent are added in a linear manner within 10 minutes, the temperature is raised to 60°C at 1°C / min, and the temperature is kept for 30 minutes. Then, soda ash is added in a linear manner within 30 minutes, and the residual liquid is discharged after keeping the temperature for 40 minutes. The initial dyeing temperature of high-temperature reactive dyes is 60°C. At 60°C, after adding sodium sulfate into the dyeing machine for 10 minutes, the dye and small molecule cross-linking agent are added linearly within 10 minutes, and the temperature is raised to 90°C at 2°C / min. After keeping warm for 30 minutes, soda ash is added linearly within 30 minutes. After keeping warm for 60 minutes, the residual liquid is discharged.

[0013] The dry cross-linking treatment process of the non-ironing process: resin CR-E: 100~120g / L, catalyst CT-C: 30~36g / L, fiber protection agent SF-P: 10~40g / L, formaldehyde scavenger FDS: 20~40g / L, softener SEH-02: 20~40g / L, finishing liquid pH value 3~5, liquid rolling rate 60~70%, drying temperature 100~110℃, drying time 1~2min; baking process: baking temperature 150~165℃, baking time 1~3min.

[0014] The moisture cross-linking process of the moisture cross-linking treatment process is as follows: moisture cross-linking resin CR-MA: 200~230g / L, catalyst LRMC: 100~115g / L, fiber protection agent SF-P: 10~40g / L, liquid squeeze rate 60~70%, cloth humidity 6~7%, cloth temperature 36~38℃, constant temperature stacking time 12~24h.

[0015] The dry crosslinking treatment process and the wet crosslinking treatment process in step S3 are carried out on a tenter frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1) The yarn dyeing cross-linking one-bath finishing and the fabric non-ironing finishing described in the present invention are two-step cross-linking. Compared with the one-step cross-linking of the fabric non-ironing finishing, the fabric strength is not reduced, and the non-ironing property can be improved by 0.2-0.3 level. For fabric varieties whose dry strength (dry strength refers to the maximum tensile force that the fiber or fabric can withstand when not wet) cannot be improved, the non-ironing property can be improved by 0.2-0.3 level, which is an important breakthrough in solving the problem of difficulty in improving the non-ironing property in the industry, and has very important significance; 2) The fabric after yarn dyeing and cross-linking described in the present invention has higher non-ironing properties after wet cross-linking finishing than after dry cross-linking finishing, which is a breakthrough solution for products that require high non-ironing properties; the non-ironing finishing after yarn dyeing and cross-linking improves the whitening phenomenon of the fabric after wearing or washing. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Unless otherwise specified, all raw materials used in the examples are commercially available.

[0019] The chelating agent SQ-B is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0020] The scouring agent SA-E is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0021] The soaping agent WO is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0022] The fixing agent FA-R is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0023] The softener LUA is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0024] The desizing enzyme DS-HT is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0025] The non-ironing resin CR-E is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0026] The catalyst CT-C for the permanent-ironing resin is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0027] The fiber protective agent SF-P is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0028] The formaldehyde scavenger FDS is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0029] The softener SEH-02 is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0030] The acid PH-X is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0031] The softener SMI-60 is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0032] The tide cross-linking resin CR-MA is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0033] The catalyst LRMC for tide cross-linking resin is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.

[0034] The softener FRD-5 is a commercially available product of Qingdao Ounosi Industry and Trade Co., Ltd.

[0035] The Reactive Red X-6BN is a commercially available product of Archroma Chemicals.

[0036] The Reactive Yellow X-4RN is a commercially available product of Archroma Chemicals.

[0037] The active navy blue X-GN is a commercially available product of Archroma Chemicals.

[0038] The reactive black TRBN is a commercially available product of Yorkshire Chemical.

[0039] The Reactive Red CDX-BT is a commercially available product of Yorkshire Chemicals.

[0040] The active golden yellow CDX-RT is a commercially available product of Yorkshire Chemical.

[0041] The reactive blue CDX-LT is a commercially available product of Yorkshire Chemical.

[0042] Example 1 The production method for improving the non-ironing property of cellulose fiber color-woven fabrics comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: Select pure cotton loose cheese yarn, the loose cheese yarn weighs 1kg, and the loose cheese yarn density is 0.38g / cm 3 , the yarn count is 40S / 1. The pure cotton loose cheese yarn is placed in the cheese yarn dyeing machine for oxygen bleaching, the oxygen bleaching temperature is 105℃, the treatment time is 40min, the chelating agent SQ-B is 0.4g / L, the scouring agent SA-E is 3g / L, the caustic soda is 3g / L, and the hydrogen peroxide (concentration is 27.5wt.%) is 8g / L.

[0043] (2) Dyeing and cross-linking: The pre-treated cheese yarn is dyed and cross-linked in a cheese yarn dyeing machine by immersion dyeing. The dyes used are medium-temperature reactive black TRBN and reactive red CDX-BT. The dye concentrations are 7.0% and 1.0% of the cheese yarn weight, respectively. The amount of small molecule cross-linking agent 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine is 3% of the cheese yarn weight. Sodium sulfate is 80 g / L, soda ash is 25 g / L, and the bath ratio is 1:10. At 50°C, after adding sodium sulfate to the main cylinder of the dyeing machine for 20 minutes, the dye and small molecule cross-linking agent are added at a uniform speed within 10 minutes, and the temperature is raised to 60°C at 1°C / min. After keeping warm for 30 minutes, soda ash is added at a uniform speed within 30 minutes. After keeping warm for 40 minutes, the residual liquid is discharged.

[0044] (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, and fixed and softened in a cheese yarn dyeing machine, and then dried to obtain the finished yarn. The washing temperature is 60°C and the time is 5 min. The soaping temperature is 98°C, the soaping time is 15 min each time, and the soaping number is 3 times. The amount of soaping agent WO for the first soaping is 2 g / L, the amount of soaping agent WO for the second soaping is 1 g / L, and the amount of soaping agent WO for the third soaping is 1 g / L. The color fixing and softening are carried out in one bath, the treatment temperature is 55°C, the time is 21 min, the amount of fixing agent FA-R is 3.5% of the weight of the cheese yarn, and the amount of softening agent LUA is 4% of the weight of the cheese yarn. The yarn is dried in a radio frequency dryer.

[0045] S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form a dyed woven fabric on a loom. The warp density is 140 yarns / inch, the weft density is 90 yarns / inch, and the fabric structure is plain weave.

[0046] S3. Fabric dry cross-linking treatment: The process flow is singeing → desizing → mercerizing → liquid ammonia → water washing → ironing → baking → stretching → pre-shrinking.

[0047] Singeing and desizing: The yarn-dyed fabric grey cloth is subjected to singeing and desizing treatment on a combined burning and desizing machine. The singeing flame intensity is 14 mbar, the burner position is cutting burning, the machine speed is 100 m / min, and the desizing enzyme DS-HT dosage is 18 g / L.

[0048] Mercerizing: After annealing treatment, the fabric is mercerized on a mercerizing machine with an alkali concentration of 21 degrees Baume and a machine speed of 75m / min.

[0049] Liquid ammonia: After mercerization, the fabric is finished with liquid ammonia on a liquid ammonia machine at a speed of 45m / min and the washing temperature is room temperature.

[0050] Washing: After liquid ammonia, the fabric is dipped in a washing machine with neutralizing acid PH-X 1g / L to neutralize the residual alkali, and the pH value after washing is 6.

[0051] No-ironing: On the tentering machine, the fabric is dipped into the resin finishing liquid after washing, and then dried and baked. The dosage of each auxiliary agent in the resin finishing liquid is: 110g / L of no-ironing resin CR-E, 33g / L of catalyst for no-ironing resin CT-C, 30g / L of fiber protective agent SF-P30 / L, 25g / L of formaldehyde scavenger FDS, 30g / L of softener SEH-02; the pH value of the finishing liquid is 4, the rolling rate is 65%, the drying temperature is 110℃, and the drying time is 1min.

[0052] Baking: Bake the wrinkle-free fabric in a baking machine at a temperature of 155°C for 2 minutes.

[0053] Tentering: After baking, the fabric is dipped in neutralized acid PH-X 2g / L and softener SMI-60: 20g / L on the tentering machine and dried at 110℃.

[0054] Preshrinkage: After stenting, the fabric is pre-shrunk on the pre-shrinkage machine.

[0055] Example 2 The production method for improving the non-ironing property of cellulose fiber color-woven fabrics comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: Select pure cotton loose cheese yarn, the loose cheese yarn weighs 1kg, and the loose cheese yarn density is 0.38g / cm 3, the yarn count is 40S / 1. The pure cotton loose cheese yarn is placed in the cheese yarn dyeing machine for oxygen bleaching, the oxygen bleaching temperature is 105℃, the treatment time is 40min, the chelating agent SQ-B is 0.4g / L, the scouring agent SA-E is 3g / L, the caustic soda is 3g / L, and the hydrogen peroxide (concentration is 27.5wt.%) is 8g / L.

[0056] (2) Dyeing and cross-linking: The pre-treated cheese yarn is dyed and cross-linked in a cheese yarn dyeing machine by immersion dyeing. The dyes used are medium-temperature reactive black TRBN and reactive red CDX-BT. The dye concentrations are 7.0% and 1.0% of the cheese yarn weight, respectively. The amount of small molecule cross-linking agent 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine is 3% of the cheese yarn weight. Sodium sulfate is 80 g / L, soda ash is 25 g / L, and the bath ratio is 1:10. At 50°C, after adding sodium sulfate to the main cylinder of the dyeing machine for 20 minutes, the dye and small molecule cross-linking agent are added at a uniform speed within 10 minutes, and the temperature is raised to 60°C at 1°C / min. After keeping warm for 30 minutes, soda ash is added at a uniform speed within 30 minutes. After keeping warm for 40 minutes, the residual liquid is discharged.

[0057] (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, and fixed and softened in a cheese yarn dyeing machine, and then dried to obtain the finished yarn. The washing temperature is 60°C and the time is 5 min. The soaping temperature is 98°C, the soaping time is 15 min each time, and the soaping number is 3 times. The amount of soaping agent WO for the first soaping is 2 g / L, the amount of soaping agent WO for the second soaping is 1 g / L, and the amount of soaping agent WO for the third soaping is 1 g / L. The color fixing and softening are carried out in one bath, the treatment temperature is 55°C, the time is 21 min, the amount of fixing agent FA-R is 3.5% of the weight of the cheese yarn, and the amount of softening agent LUA is 4% of the weight of the cheese yarn. The yarn is dried in a radio frequency dryer.

[0058] S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form a dyed woven fabric on a loom. The warp density is 140 yarns / inch, the weft density is 90 yarns / inch, and the fabric structure is plain weave.

[0059] S3. Fabric moisture cross-linking treatment: The process flow is singeing → desizing → mercerizing → liquid ammonia → pre-softening → moisture cross-linking → moisture cross-linking washing → stretching → pre-shrinking.

[0060] Singeing and desizing: The yarn-dyed fabric grey cloth is subjected to singeing and desizing treatment on a combined burning and desizing machine. The singeing flame intensity is 14 mbar, the burner position is cutting burning, the machine speed is 100 m / min, and the desizing enzyme DS-HT dosage is 18 g / L.

[0061] Mercerizing: After annealing treatment, the fabric is mercerized on a mercerizing machine with an alkali concentration of 21 degrees Baume and a machine speed of 75m / min.

[0062] Liquid ammonia: After mercerization, the fabric is finished with liquid ammonia on a liquid ammonia machine at a speed of 45m / min and the washing temperature is room temperature.

[0063] Pre-softening: On the tenter frame, the fabric was dipped into softener FRD-5 20g / L after liquid ammonia, the speed was 70m / min, and the drying temperature was 120℃.

[0064] Moisture cross-linking: After pre-softening, the fabric is dipped into moisture cross-linking resin finishing liquid on a tenter frame. The amounts of various additives in the finishing liquid are: moisture cross-linking resin CR-MA 220g / L, moisture cross-linking resin catalyst LRMC 110g / L, fiber protective agent SF-P35g / L, rolling rate 65%, cloth humidity 6.5%, cloth temperature 36℃, and after the cloth is rolled, it is stacked in a constant temperature environment of 36℃ for reaction for 18 hours.

[0065] Tide-cross-linked washing: The tide-cross-linked rolled fabric is washed in a washing machine at a temperature of 70°C, a speed of 50m / min, and soda ash of 20g / L.

[0066] Stretching: After moisture cross-linking and washing, the fabric is dipped into softener on the stenter to improve the feel. The amount of softener SMI-60 is 5g / L and the drying temperature is 110℃.

[0067] Pre-shrinking: After stretching and softening, the fabric is pre-shrunk on a pre-shrinking machine.

[0068] Example 3 The production method for improving the non-ironing property of cellulose fiber color-woven fabrics comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: Select pure cotton loose cheese yarn, the loose cheese yarn weight is 0.8kg, and the loose cheese yarn density is 0.37g / cm 3 , the yarn count is 60S / 2. The pure cotton loose cheese yarn is placed in the cheese yarn dyeing machine for oxygen bleaching, the oxygen bleaching temperature is 110℃, the treatment time is 60min, the chelating agent SQ-B is 0.5g / L, the scouring agent SA-E is 4g / L, the caustic soda is 4g / L, and the hydrogen peroxide (concentration is 27.5wt.%) is 10g / L.

[0069] (2) Dyeing and cross-linking: The pre-treated cheese yarn was dyed and cross-linked in a cheese yarn dyeing machine by immersion dyeing. The dyes used were high-temperature reactive red X-6BN, reactive yellow X-4RN and reactive navy blue X-GN. The dye concentrations were 1.0%, 0.8% and 2.0% of the cheese yarn weight, respectively. The amount of small molecule cross-linking agent 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine was 3.5% of the cheese yarn weight. Sodium sulfate was 70 g / L, soda ash was 20 g / L, and the bath ratio was 1:12. At 60 °C, sodium sulfate was added to the main cylinder of the dyeing machine for 10 minutes, and then the dye and small molecule cross-linking agent were added at a uniform speed within 10 minutes. The temperature was raised to 90 °C at 2 °C / min and kept warm for 30 minutes. Then, soda ash was added at a uniform speed within 30 minutes. The residual liquid was discharged after keeping warm for 60 minutes.

[0070] (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, fixed and softened in a cheese dyeing machine and then dried to obtain the finished yarn. The washing temperature is 60°C and the time is 5 min. Then it is soaped three times. The first soaping temperature is 105°C, the soaping time is 15 min, and the amount of soaping agent WO is 2 g / L. The second and third soaping temperatures are 98°C, each soaping time is 15 min, and the amount of soaping agent WO is 1 g / L. Then the color fixing and softening is carried out in one bath at a treatment temperature of 55°C for 21 min. The amount of fixing agent FA-R is 3.5% of the weight of the cheese yarn, and the amount of softening agent LUA is 4% of the weight of the cheese yarn. Finally, it is dried in a radio frequency dryer.

[0071] S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form a dyed woven fabric on a loom. The warp density is 104 yarns / inch, the weft density is 76 yarns / inch, and the fabric structure is plain weave.

[0072] S3. Fabric dry cross-linking treatment: The process flow is singeing → desizing → mercerizing → ironing → baking → stretching → pre-shrinking.

[0073] Singeing and desizing: The yarn-dyed fabric grey cloth is subjected to singeing and desizing treatment on a combined burning and desizing machine. The singeing flame intensity is 14 mbar, the burner position is cutting burning, the machine speed is 85 m / min, and the desizing enzyme DS-HT dosage is 20 g / L.

[0074] Mercerizing: After annealing treatment, the fabric is mercerized on a mercerizing machine with an alkali concentration of 22 degrees Baume and a machine speed of 70m / min.

[0075] No-ironing: On the tentering machine, the mercerized fabric is dipped into the resin finishing liquid, and then dried and baked. The dosage of each auxiliary agent in the resin finishing liquid is: 120g / L of no-ironing resin CR-E, 36g / L of catalyst for no-ironing resin CT-C, 40g / L of fiber protective agent SF-P, 40g / L of formaldehyde scavenger FDS, 40g / L of softener SEH-02; the pH value of the finishing liquid is 5, the liquid rolling rate is 60%, the drying temperature is 105℃, and the drying time is 1.5min.

[0076] Baking: Bake the wrinkle-free fabric in a baking machine at a temperature of 165°C for 1 minute.

[0077] Tentering: After baking, the fabric is dipped in acid PH-X 2g / L and softener SMI-60: 20g / L on the tentering machine and dried at 105℃.

[0078] Preshrinkage: After stenting, the fabric is pre-shrunk on the pre-shrinkage machine.

[0079] Example 4 The production method for improving the non-ironing property of cellulose fiber color-woven fabrics comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: Select pure cotton loose cheese yarn, the loose cheese yarn weight is 0.8kg, and the loose cheese yarn density is 0.37g / cm 3 , the yarn count is 60S / 2. The pure cotton loose cheese yarn is placed in the cheese yarn dyeing machine for oxygen bleaching, the oxygen bleaching temperature is 110℃, the treatment time is 60min, the chelating agent SQ-B is 0.5g / L, the scouring agent SA-E is 4g / L, the caustic soda is 4g / L, and the hydrogen peroxide (concentration is 27.5wt.%) is 10g / L.

[0080] (2) Dyeing and cross-linking: The pre-treated cheese yarn was dyed and cross-linked in a cheese yarn dyeing machine by immersion dyeing. The dyes used were high-temperature reactive red X-6BN, reactive yellow X-4RN and reactive navy blue X-GN. The dye concentrations were 1.0%, 0.8% and 2.0% of the cheese yarn weight, respectively. The amount of small molecule cross-linking agent 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine was 3.5% of the cheese yarn weight. Sodium sulfate was 70 g / L, soda ash was 20 g / L, and the bath ratio was 1:12. At 60 °C, sodium sulfate was added to the main cylinder of the dyeing machine for 10 minutes, and then the dye and small molecule cross-linking agent were added at a uniform speed within 10 minutes. The temperature was raised to 90 °C at 2 °C / min and kept warm for 30 minutes. Then, soda ash was added at a uniform speed within 30 minutes. The residual liquid was discharged after keeping warm for 60 minutes.

[0081] (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, fixed and softened in a cheese dyeing machine and then dried to obtain the finished yarn. The washing temperature is 60°C and the time is 5 min. Then it is soaped three times. The first soaping temperature is 105°C, the soaping time is 15 min, and the amount of soaping agent WO is 2 g / L. The second and third soaping temperatures are 98°C, each soaping time is 15 min, and the amount of soaping agent WO is 1 g / L. Then the color fixing and softening is carried out in one bath at a treatment temperature of 55°C for 21 min. The amount of fixing agent FA-R is 3.5% of the weight of the cheese yarn, and the amount of softening agent LUA is 4% of the weight of the cheese yarn. Finally, it is dried in a radio frequency dryer.

[0082] S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form a dyed woven fabric on a loom. The warp density is 104 yarns / inch, the weft density is 76 yarns / inch, and the fabric structure is plain weave.

[0083] S3. Fabric moisture cross-linking treatment: The process flow is singeing → desizing → mercerizing → liquid ammonia → pre-softening → moisture cross-linking → moisture cross-linking washing → stretching → pre-shrinking.

[0084] Singeing and desizing: The yarn-dyed fabric grey cloth is subjected to singeing and desizing treatment on a combined burning and desizing machine. The singeing flame intensity is 14 mbar, the burner position is cutting burning, the machine speed is 85 m / min, and the desizing enzyme DS-HT dosage is 20 g / L.

[0085] Mercerizing: After annealing treatment, the fabric is mercerized on a mercerizing machine with an alkali concentration of 22 degrees Baume and a machine speed of 70m / min.

[0086] Liquid ammonia: After mercerization, the fabric is finished with liquid ammonia on a liquid ammonia machine at a speed of 40m / min and the washing temperature is room temperature.

[0087] Pre-softening: On the tenter frame, the fabric was dipped into softener FRD-5 25g / L after liquid ammonia, the speed was 65m / min, and the drying temperature was 125℃.

[0088] Moisture cross-linking: After pre-softening, the fabric is dipped into moisture cross-linking resin finishing liquid on a tenter frame. The amounts of various additives in the finishing liquid are: moisture cross-linking resin CR-MA 230g / L, moisture cross-linking resin catalyst LRMC 115g / L, fiber protective agent SF-P40g / L, rolling rate 60%, cloth humidity 7%, cloth temperature 38℃, and after the cloth is rolled, it is piled up in a constant temperature environment of 38℃ for reaction for 24 hours.

[0089] Tide-cross-linked washing: The tide-cross-linked rolled fabric is washed in a washing machine at a temperature of 75°C, a speed of 45m / min, and soda ash of 20g / L.

[0090] Stretching: After moisture cross-linking and washing, the fabric is dipped into softener on the stenter to improve the feel. The amount of softener SMI-60 is 10g / L and the drying temperature is 115℃.

[0091] Pre-shrinking: After stretching and softening, the fabric is pre-shrunk on a pre-shrinking machine.

[0092] Example 5 The production method for improving the non-ironing property of cellulose fiber color-woven fabrics comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: Select lyocell fiber loose cheese yarn, the loose cheese yarn weight is 0.5kg, and the loose cheese yarn density is 0.36g / cm 3 , the yarn count is 80S / 2. The pure cotton loose cheese yarn is placed in the cheese yarn dyeing machine for oxygen bleaching, the oxygen bleaching temperature is 90℃, the treatment time is 10min, the chelating agent SQ-B is 0.1g / L, the scouring agent SA-E is 1g / L, the caustic soda is 1g / L, and the hydrogen peroxide (concentration is 27.5wt.%) is 0.1g / L.

[0093] (2) Dyeing and cross-linking: The pre-treated cheese yarn was dyed and cross-linked in a cheese yarn dyeing machine by immersion dyeing. The dyes used were medium-temperature reactive red CDX-BT, reactive golden yellow CDX-RT and reactive blue CDX-LT. The dye concentrations were 0.96%, 0.25% and 0.516% of the cheese yarn weight, respectively. The amount of small molecule cross-linking agent 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine was 4% of the cheese yarn weight. Sodium sulfate was 10 g / L, soda ash was 10 g / L, and the bath ratio was 1:6.5. At 50 °C, sodium sulfate was added to the main cylinder of the dyeing machine for 20 minutes, and then the dye and small molecule cross-linking agent were added at a uniform speed within 10 minutes. The temperature was raised to 60 °C at 1 °C / min and kept warm for 30 minutes. Then, soda ash was added at a uniform speed within 30 minutes. The residual liquid was discharged after keeping warm for 40 minutes.

[0094] (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, and fixed and softened in a cheese yarn dyeing machine, and then dried to obtain the finished yarn. The washing temperature is 60°C and the time is 5 min. The soaping temperature is 98°C, the soaping time is 15 min each time, and the soaping number is 3 times. The amount of soaping agent WO for the first soaping is 2 g / L, the amount of soaping agent WO for the second soaping is 1 g / L, and the amount of soaping agent WO for the third soaping is 1 g / L. The color fixing and softening are carried out in one bath, the treatment temperature is 55°C, the time is 21 min, the amount of fixing agent FA-R is 3.5% of the weight of the cheese yarn, and the amount of softening agent LUA is 4% of the weight of the cheese yarn. The yarn is dried in a radio frequency dryer.

[0095] S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form a dyed woven fabric on a loom. The warp density is 130 yarns / inch, the weft density is 80 yarns / inch, and the fabric structure is plain weave.

[0096] S3. Fabric dry cross-linking treatment: The process flow is singeing → desizing → mercerizing → ironing → baking → pre-shrinking.

[0097] Singeing and desizing: The yarn-dyed fabric grey cloth is subjected to singeing and desizing treatment on a combined burning and desizing machine. The singeing flame intensity is 10 mbar, the burner position is cutting burning, the machine speed is 90 m / min, and the desizing enzyme DS-HT dosage is 15 g / L.

[0098] Mercerizing: After annealing treatment, the fabric is mercerized on a mercerizing machine with an alkali concentration of 12 degrees Baume and a machine speed of 70m / min.

[0099] No-ironing: On the tentering machine, the mercerized fabric is dipped into the resin finishing liquid, and then dried and baked. The dosage of each auxiliary agent in the resin finishing liquid is: 100g / L of no-ironing resin CR-E, 30g / L of catalyst for no-ironing resin CT-C, 10 / L of fiber protective agent SF-P, 20g / L of formaldehyde scavenger FDS, 20g / L of softener SEH-02; the pH value of the finishing liquid is 3, the liquid rolling rate is 70%, the drying temperature is 100℃, and the drying time is 2min.

[0100] Baking: Bake the wrinkle-free fabric in a baking machine at a temperature of 150°C for 3 minutes.

[0101] Preshrinkage: After stenting, the fabric is pre-shrunk on the pre-shrinkage machine.

[0102] Example 6 The production method for improving the non-ironing property of cellulose fiber color-woven fabrics comprises the following process: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: Select lyocell fiber loose cheese yarn, the loose cheese yarn weight is 0.5kg, and the loose cheese yarn density is 0.36g / cm 3 , the yarn count is 80S / 2. The pure cotton loose cheese yarn is placed in the cheese yarn dyeing machine for oxygen bleaching, the oxygen bleaching temperature is 90℃, the treatment time is 10min, the chelating agent SQ-B is 0.1g / L, the scouring agent SA-E is 1g / L, the caustic soda is 1g / L, and the hydrogen peroxide (concentration is 27.5wt.%) is 0.1g / L.

[0103] (2) Dyeing and cross-linking: The pre-treated cheese yarn was dyed and cross-linked in a cheese yarn dyeing machine by immersion dyeing. The dyes used were medium-temperature reactive red CDX-BT, reactive golden yellow CDX-RT and reactive blue CDX-LT. The dye concentrations were 0.96%, 0.25% and 0.516% of the cheese yarn weight, respectively. The amount of small molecule cross-linking agent 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine was 4% of the cheese yarn weight. Sodium sulfate was 10 g / L, soda ash was 10 g / L, and the bath ratio was 1:6.5. At 50 °C, sodium sulfate was added to the main cylinder of the dyeing machine for 20 minutes, and then the dye and small molecule cross-linking agent were added at a uniform speed within 10 minutes. The temperature was raised to 60 °C at 1 °C / min and kept warm for 30 minutes. Then, soda ash was added at a uniform speed within 30 minutes. The residual liquid was discharged after keeping warm for 40 minutes.

[0104] (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, and fixed and softened in a cheese yarn dyeing machine, and then dried to obtain the finished yarn. The washing temperature is 60°C and the time is 5 min. The soaping temperature is 98°C, the soaping time is 15 min each time, and the soaping number is 3 times. The amount of soaping agent WO for the first soaping is 2 g / L, the amount of soaping agent WO for the second soaping is 1 g / L, and the amount of soaping agent WO for the third soaping is 1 g / L. The color fixing and softening are carried out in one bath, the treatment temperature is 55°C, the time is 21 min, the amount of fixing agent FA-R is 3.5% of the weight of the cheese yarn, and the amount of softening agent LUA is 4% of the weight of the cheese yarn. The yarn is dried in a radio frequency dryer.

[0105] S2. Weaving: The dyed and cross-linked yarns are warped and sizing before weaving to form a dyed woven fabric on a loom. The warp density is 130 yarns / inch, the weft density is 80 yarns / inch, and the fabric structure is plain weave.

[0106] S3. Fabric moisture cross-linking treatment: The process flow is singeing → desizing → mercerizing → pre-softening → moisture cross-linking → moisture cross-linking washing → stretching → pre-shrinking.

[0107] Singeing and desizing: The yarn-dyed fabric grey cloth is subjected to singeing and desizing treatment on a combined burning and desizing machine. The singeing flame intensity is 10 mbar, the burner position is cutting burning, the machine speed is 90 m / min, and the desizing enzyme DS-HT dosage is 15 g / L.

[0108] Mercerizing: After annealing treatment, the fabric is mercerized on a mercerizing machine with an alkali concentration of 12 degrees Baume and a machine speed of 70m / min.

[0109] Pre-softening: On the tenter frame, the mercerized fabric was dipped into softener FRD-5 20g / L, the speed was 85m / min, and the drying temperature was 115℃.

[0110] Moisture cross-linking: After pre-softening, the fabric is dipped into moisture cross-linking resin finishing liquid on a tenter frame. The amounts of various auxiliaries in the finishing liquid are: moisture cross-linking resin CR-MA 200g / L, moisture cross-linking resin catalyst LRMC 100g / L, fiber protective agent SF-P10g / L, rolling rate 70%, cloth humidity 6%, cloth temperature 37℃, and after the cloth is rolled, it is piled up in a constant temperature environment of 37℃ for reaction for 12 hours.

[0111] Tide-cross-linked washing: The tide-cross-linked rolled fabric is washed in a washing machine at a temperature of 75°C and a speed of 40m / min.

[0112] Stretching: After moisture cross-linking and washing, the fabric is dipped into softener on the stenter to improve the feel. The amount of softener SMI-60 is 10g / L and the drying temperature is 115℃.

[0113] Pre-shrinking: After stretching and softening, the fabric is pre-shrunk on a pre-shrinking machine.

[0114] Comparative Example 1 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process does not use a small molecule cross-linking agent, and the other steps and process parameters are the same as those in Example 1.

[0115] Comparative Example 2 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process does not use a small molecule cross-linking agent, and the other steps and process parameters are the same as those in Example 2.

[0116] Comparative Example 3 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process does not use a small molecule cross-linking agent, and the other steps and process parameters are the same as those in Example 3.

[0117] Comparative Example 4 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process does not use a small molecule cross-linking agent, and the other steps and process parameters are the same as those in Example 4.

[0118] Comparative Example 5 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process does not use a small molecule cross-linking agent, and the other steps and process parameters are the same as those in Example 5.

[0119] Comparative Example 6 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process does not use a small molecule cross-linking agent, and the other steps and process parameters are the same as those in Example 6.

[0120] Example 7 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process is the same as that of Example 6, the small molecule cross-linking agent is 1,3,5-triacryloylhexahydro-1,3,5-triazine, and the other steps and process parameters are the same as those of Example 6.

[0121] Comparative Example 7 The dyeing and cross-linking process of the yarn dyeing and cross-linking one-bath finishing process is the same as that in Example 6, the small molecule cross-linking agent is N,N-methylenebisacrylamide, and the other steps and process parameters are the same as those in Example 6.

[0122] Performance tests were performed on Examples 1-7 and Comparative Examples 1-7. The iron-free property test method was AATCC TM124-2018t "Determination of the smoothness of the appearance of fabrics after repeated home washing", the tear strength test method was IS0 13937-1:2000 "Tear properties of textile fabrics Part 1: Determination of tear strength by impact pendulum method", and the breaking strength test method was ISO13934-1:2013 "Tensile properties of textile fabrics Part 1: Determination of breaking strength and elongation at break by strip method".

[0123] The test data is shown in Table 1: Table 1 Performance data of Examples 1-7 and Comparative Examples 1-7

[0124] In summary, after cross-linking once in the yarn dyeing step, the subsequent wrinkle-free finishing can improve the wrinkle-free property by 0.2~0.3 levels without reducing the strength of the fabric; the effect of polyazine compounds is better than that of other types of compounds.

Claims

1. A method for improving the non-ironing properties of cellulose fiber yarn-dyed fabrics, characterized in that: The following processes are included: S1. Yarn dyeing and cross-linking in one-bath finishing: (1) Pretreatment: The cellulose fiber loose cheese yarn is oxygen bleached in a cheese yarn dyeing machine; (2) Dyeing and cross-linking: The pre-treated cheese yarn is dyed and cross-linked in the cheese yarn dyeing machine by immersion dyeing. (3) Post-treatment: The dyed and cross-linked cheese yarn is washed, soaped, fixed and softened, and then dried to obtain the finished yarn; S2, weaving: the dyed and cross-linked yarns are warped and sizing before weaving to form dyed woven fabrics on a loom; S3, fabric non-ironing finishing: the yarn-dyed fabric is subjected to dry cross-linking treatment or wet cross-linking treatment; The small molecule cross-linking agent used in the cross-linking in step (2) is a polyazine compound.

2. The method for improving the non-ironing property of cellulose fiber color-woven fabric according to claim 1, characterized in that: The cheese weight in step S1 is 0.5-1 kg, and the cheese density is 0.36-0.38 g / cm 3 .

3. The method for improving the non-ironing properties of cellulose fiber color-woven fabrics according to claim 1, characterized in that: The oxygen bleaching process described in step S1 is: chelating agent SQ-B: 0.1~0.5g / L, scouring agent SA-E: 1~4g / L, caustic soda: 1~4g / L, hydrogen peroxide: 0.1~10g / L, temperature 90~110℃, time 10~60min.

4. The method for improving the non-ironing property of cellulose fiber color-woven fabric according to claim 1, characterized in that: The dyeing and cross-linking one-bath finishing process described in step S1 is as follows: the dye is a medium-temperature or high-temperature reactive dye, the dye concentration is 0.1-8% of the weight of the cheese yarn, the amount of the small molecule cross-linking agent is 3-4% of the weight of the cheese yarn, sodium sulfate: 10-80 g / L, soda ash: 10-25 g / L, and the bath ratio is 1:6.5-1:

12.

5. The method for improving the non-ironing property of cellulose fiber color-woven fabric according to claim 1, characterized in that: The process flow of the dry cross-linking treatment process described in step S3 includes singeing → desizing → mercerizing → ironing → baking → pre-shrinking.

6. The method for improving the non-ironing property of cellulose fiber yarn-dyed fabric according to claim 1, characterized in that: The process flow of the moisture cross-linking treatment process described in step S3 includes singeing → desizing → mercerizing → pre-softening → moisture cross-linking → washing → stretching → pre-shrinking.

7. The method for improving the non-ironing properties of cellulose fiber color-woven fabrics according to claim 5, characterized in that: The non-ironing process of the dry cross-linking treatment process: non-ironing resin CR-E: 100~120g / L, catalyst CT-C for non-ironing resin: 30~36g / L, fiber protection agent SF-P: 10~40g / L, formaldehyde scavenger FDS: 20~40g / L, softener SEH-02: 20~40g / L, finishing liquid pH value 3~5, liquid rolling rate 60~70%, drying temperature 100~110℃, drying time 1~2min; baking process: baking temperature 150~165℃, baking time 1~3min.

8. The method for improving the non-ironing property of cellulose fiber color-woven fabric according to claim 6, characterized in that: The moisture cross-linking process of the moisture cross-linking treatment process is as follows: moisture cross-linking resin CR-MA: 200~230g / L, moisture cross-linking resin catalyst LRMC: 100~115g / L, fiber protection agent SF-P: 10~40g / L, liquid rolling rate 60~70%, cloth humidity 6~7%, cloth temperature 36~38°C, and constant temperature stacking time 12~24h.

9. The method for improving the non-ironing property of cellulose fiber color-woven fabric according to claim 1, characterized in that: The dry crosslinking treatment process and the wet crosslinking treatment process in step S3 are carried out on a tenter frame.

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