WO2023273800A1 - 一种棉织物延迟焙烘免烫整理工艺 - Google Patents

一种棉织物延迟焙烘免烫整理工艺 Download PDF

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Publication number
WO2023273800A1
WO2023273800A1 PCT/CN2022/097087 CN2022097087W WO2023273800A1 WO 2023273800 A1 WO2023273800 A1 WO 2023273800A1 CN 2022097087 W CN2022097087 W CN 2022097087W WO 2023273800 A1 WO2023273800 A1 WO 2023273800A1
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Prior art keywords
baking
liquid ammonia
fabric
delayed
post
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PCT/CN2022/097087
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English (en)
French (fr)
Inventor
傅佳佳
高卫东
刘贞玥
范雪荣
王蕾
李蓉
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江南大学
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Priority to US17/897,473 priority Critical patent/US11718942B2/en
Publication of WO2023273800A1 publication Critical patent/WO2023273800A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/59—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with ammonia; with complexes of organic amines with inorganic substances
    • D06M11/61—Liquid ammonia
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C9/00—Singeing
    • 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B7/00—Mercerising, e.g. lustring by mercerising
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B9/00—Solvent-treatment of textile materials
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/13—Steaming or decatising of fabrics or yarns
    • D06C2700/135—Moistening of fabrics or yarns as a complementary treatment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/02—Cotton

Definitions

  • the invention relates to the technical field of textile post-finishing, in particular to a delayed-baking and non-ironing finishing process for cotton fabrics.
  • the more effective technological methods are to carry out non-ironing finishing and liquid ammonia finishing on them.
  • Pre-baking non-ironing, wet non-ironing, post-baking non-ironing, garment non-ironing, etc. are representative finishing methods in non-ironing finishing.
  • the delayed baking method is a non-ironing finishing process that is beneficial to obtain a better setting effect for garments, but the low stability of the delayed baking sensitized fabrics produced by this process has always been a key issue in the process development. It is specifically manifested in the partial cross-linking reaction between the cotton fabric and the resin during storage and transportation, resulting in wrinkles that are difficult to remove, and at the same time causing problems such as a decrease in the whiteness of delayed baking sensitized fabrics.
  • the present invention provides the following technical solutions:
  • the present invention provides a delayed baking and non-ironing finishing process for cotton fabrics, which includes the following steps in sequence: singeing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia ⁇ post-baking finishing; wherein, The specific process of the post-baking finishing process is: cotton fabric padding ⁇ pre-baking.
  • the present invention provides a cotton fabric delayed baking and non-ironing finishing process, which includes the following steps in sequence: singeing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia ⁇ post-baking finishing; wherein , the specific process of the post-baking finishing process is: cotton fabric padding ⁇ pre-baking ⁇ storage ⁇ baking.
  • the curing conditions in the post-baking finishing process are as follows: a curing temperature of 140-160° C., and a curing time of 3-6 minutes.
  • the pre-baking conditions in the post-baking finishing process pre-baking at 80-85°C (preferably 80°C) for 2-3min (preferably 3min) to obtain delayed baking sensitive Chemical fabrics, the moisture content of the drop cloth is 7-9% (preferably 8%).
  • the fabric rejection rate of the cotton fabric after padding in the post-baking finishing process is 70-90%.
  • the padding method adopted in the cotton fabric padding in the post-baking finishing process is two dipping and two padding.
  • the specific process of the liquid ammonia process is: cloth feeding ⁇ pre-drying ⁇ cooling ⁇ liquid ammonia treatment ⁇ steaming ⁇ water washing ⁇ drying.
  • the liquid ammonia treatment step in the liquid ammonia process is: padding liquid ammonia for 13-17s (preferably 15s) ⁇ drying.
  • the steaming temperature in the liquid ammonia process is 90-100°C (preferably 95°C); and/or, the washing temperature in the liquid ammonia process is 90-100°C ( preferably 95°C).
  • the vehicle speed in the liquid ammonia process flow is 50-60 m/min
  • the temperature of the treatment chamber is 80° C.
  • the pH value of the falling cloth is 6.
  • the specific process of the mercerizing process is as follows: the fabric is immersed in lye ⁇ washed with water ⁇ neutralized and the pH value of the washing tank is adjusted to neutral.
  • the time for immersing the fabric in the lye in the mercerizing process is 4-6 minutes (preferably 5 minutes).
  • the washing conditions in the mercerizing process are: tension is applied, and the washing temperature is 90-100°C (preferably 95°C).
  • the vehicle speed in the mercerizing process flow is 60-70 m/min (preferably 70 m/min), and the pH value of the neutralization washing tank is 4.5-5.0.
  • the specific process of the desizing process is as follows: the cotton fabric is immersed in the enzyme solution ⁇ steaming ⁇ washing ⁇ drying.
  • the steaming condition in the desizing process stack at 100° C. for 20 minutes.
  • the washing temperature in the desizing step is 90-100° C. (preferably 95° C.).
  • the conditions of the desizing process are: desizing enzyme 3g/L; penetrant 4g/L; chelating agent 2g/L, vehicle speed 60-70m/min (preferably 70m/min) .
  • the present invention provides a delayed-baking fabric product obtained by the aforementioned cotton fabric delayed-baking and non-ironing finishing process.
  • the present invention provides an application of the aforementioned delayed-baking fabric product in non-ironing clothing.
  • the present invention creatively proposes to improve the storage stability of delayed-baking sensitized fabrics by optimizing the finishing process, specifically, by designing a specific sequence of joint processes of liquid ammonia and mercerizing before the post-baking finishing process (i.e. singeing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia ⁇ post-curing finishing), without changing the process parameters of a single process, the storage stability of the delayed-curing sensitized fabric obtained from the treatment is significantly improved , to overcome the field of cotton fabric finishing in the prior art, to improve the storage stability of delayed baking sensitized fabrics, it is often only through the technical means of designing and optimizing the resin finishing agent and catalytic system, and hardly considering the pre-curing finishing
  • the present invention just adopts the technical means abandoned due to technical prejudice, thereby solving the aforementioned technical problems.
  • the present invention has achieved unexpected technical effects.
  • the present invention combines the specific sequence of pretreatment process "singeing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia” and "post-baking finishing" (excluding storage ⁇ baking steps), which significantly enhances the delayed baking sensitivity.
  • the storage stability of the sensitized fabric can improve the problems of difficult-to-remove wrinkles and whiteness reduction caused by the slow reaction in the storage process of the delayed baking sensitized fabric, which is beneficial to the improvement of product quality.
  • the overall change of the breaking strength of the baking-sensitized fabric after storage for 5 days was slow, and the increase rate of the wrinkle recovery angle was generally slow, and the whiteness was always the highest.
  • the pretreatment process "singing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia" provided in the present invention forms a good combination with "post-baking finishing".
  • post-baking finishing When one process is reduced or the sequence of the pretreatment process is replaced , the stability of the delayed baking sensitized fabrics was significantly decreased.
  • the treatment process of the present invention is relatively simple and feasible, and is suitable for industrial scale production.
  • one embodiment or “an embodiment” referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment” appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.
  • the raw material that the embodiment of the present invention and comparative examples adopt is white plain weave cotton fabric (120/10cm * 70/10cm)
  • Example 1 (delayed curing sensitized fabric, process does not contain storage ⁇ curing step)
  • a cotton fabric delayed baking non-ironing finishing process includes a pretreatment process and a posttreatment process.
  • Pretreatment process singeing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia;
  • the specific process of the desizing process is as follows: the fabric is immersed in the enzyme solution ⁇ steamed (stacked at 100°C for 20 minutes) ⁇ washed with water (95°C) ⁇ dried. Conditions: desizing enzyme 3g/L; penetrant 4g/L; chelating agent 2g/L; vehicle speed 70m/min;
  • the specific flow of the liquid ammonia process is: cloth feeding ⁇ pre-drying ⁇ cooling ⁇ liquid ammonia treatment (dipping liquid ammonia for 15s ⁇ drying) ⁇ steaming (95°C) ⁇ water washing (95°C) ⁇ drying ⁇ cloth falling.
  • the specific process of the mercerizing process is as follows: the fabric is immersed in the lye (5min) ⁇ washed (with tension applied, 95°C) ⁇ neutralized and the pH value of the washing tank is adjusted to neutral. Conditions: concentrated alkali 239g/L; vehicle speed 70m/min; pH value of neutralization washing tank 4.5; cloth drop width 140cm.
  • Post-treatment process (post-baking finishing process A): the cotton fabric is placed in a conventional finishing solution for two dipping and two rolling, and the pass rate is 80%. After the cotton fabric is padded with the finishing solution, it is pre-baked at 80°C for 3 minutes to obtain a delayed-baking sensitized fabric with a moisture content of 8%.
  • a kind of delayed baking non-ironing finishing process of cotton fabric refers to Example 1, and the difference between Comparative Example 1 and Example 1 is:
  • Pretreatment process singeing ⁇ desizing ⁇ mercerizing ⁇ liquid ammonia.
  • a kind of delayed baking non-ironing finishing process of cotton fabric refers to Example 1, and the difference between Comparative Example 2 and Example 1 is:
  • Pretreatment process singeing ⁇ desizing ⁇ mercerizing ⁇ liquid ammonia ⁇ liquid ammonia.
  • Example 1 and Comparative Examples 1-2 The delayed baking sensitized fabrics prepared in Example 1 and Comparative Examples 1-2 were stored at 80°C for 5 days, and the delayed baking sensitized fabrics were measured according to the standard AATCC66-2008, the standard ASTMD5035-2006 and the standard AATCC110-2011. Wrinkle recovery angle, breaking strength and whiteness data in Example 1 and Comparative Examples 1-2. Taking the wrinkle recovery angle and breaking strength of the pretreated fabric before fabric padding with the finishing solution as reference values, the rate of change of breaking strength and the rate of change of wrinkle recovery angle were calculated.
  • the wrinkle recovery angle change rate W (%) is calculated according to formula (1), and the obtained data are shown in Table 1:
  • W 0 is the wrinkle recovery angle (°) of the pretreated fabric before padding finishing solution
  • WS is the wrinkle recovery angle (°) of the delayed baking sensitized fabric before and after storage.
  • the fracture strength change rate T SC (%) is calculated according to formula (2) and taken as an absolute value, and the obtained data are shown in Table 2:
  • T S0 is the breaking strength (N) of the pretreated fabric before padding finishing solution
  • T S is the breaking strength (N) of the delayed baking sensitized fabric before and after storage.
  • the wrinkle recovery angle and the breaking strength of the pretreated fabric before the padding finishing solution in Example 1 are 176.27° and 437.57N; the wrinkle recovery angle and the breaking strength of the pretreated fabric before the padding finishing solution in the comparative example 1 are 164.5° and 431.3N; the wrinkle recovery angle and breaking strength of the pretreated fabric before the padding finishing solution in Comparative Example 2 were 167.23° and 439.33N.
  • the wrinkle recovery angle change rate, breaking strength change rate and whiteness data of the delayed baking sensitized fabrics obtained in Example 1 and Comparative Examples 1-2 in the above data can be obtained.
  • the sensitized fabrics obtained in Example 1 The overall change of breaking strength is slow, and the increase rate of wrinkle recovery angle is generally slow, and the whiteness is always the highest.
  • the absolute value of the change rate of the strength of the delayed baking sensitized fabric prepared in Example 1 is the smallest, and the change rate of wrinkle recovery is also the lowest. Therefore, the stability of the delayed baking sensitized fabric obtained in Example 1 is optimal, and a good combination is formed between the pretreatment processes provided in the present invention.
  • the stability of chemical fabrics showed a significant decline.
  • Embodiment 2 (delay baking fabric, technique contains storage ⁇ baking step)
  • a cotton fabric delayed baking non-ironing finishing process includes a pretreatment process and a posttreatment process.
  • Pretreatment process singeing ⁇ desizing ⁇ liquid ammonia ⁇ mercerizing ⁇ liquid ammonia;
  • the specific process of the desizing process is as follows: the fabric is immersed in the enzyme solution ⁇ steamed (stacked at 100°C for 20 minutes) ⁇ washed with water (95°C) ⁇ dried. Conditions: desizing enzyme 3g/L; penetrant 4g/L; chelating agent 2g/L; vehicle speed 70m/min;
  • the specific flow of the liquid ammonia process is: cloth feeding ⁇ pre-drying ⁇ cooling ⁇ liquid ammonia treatment (dipping liquid ammonia for 15s ⁇ drying) ⁇ steaming (95°C) ⁇ water washing (95°C) ⁇ drying ⁇ cloth falling.
  • the specific process of the mercerizing process is as follows: the fabric is immersed in the lye (5min) ⁇ washed (with tension applied, 95°C) ⁇ neutralized and the pH value of the washing tank is adjusted to neutral. Conditions: concentrated alkali 239g/L; vehicle speed 70m/min; pH value of neutralization washing tank 4.5; cloth drop width 140cm.
  • Post-treatment process (post-baking finishing process B): the cotton fabric is placed in the finishing liquid for two dipping and two rolling, and the excess rolling rate is 70%-80%. . After the cotton fabric is padded with the finishing solution, it is pre-baked at 80°C for 3 minutes, and after storage, it is baked at 140°C for 3 minutes to obtain a delayed-baking fabric.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 3 and Example 2 is that the 3 minutes of baking in the post-baking finishing process B is adjusted to 6 minutes of baking.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 4 and Example 2 is that the 3-minute baking in the post-baking finishing process B is adjusted to 8 minutes.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 5 and Example 2 is that the baking temperature in post-baking finishing process B is adjusted from 140°C to 150°C.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 6 and Example 2 is that the baking temperature in the post-baking finishing process B is adjusted from 140°C to 150°C, and the baking time is 3 minutes. Adjust to bake for 6 minutes.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 7 and Example 2 is that the baking temperature in the post-baking finishing process B is adjusted from 140°C to 150°C, and the baking time is 3 minutes. Adjust to bake for 8 minutes.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 8 and Example 2 is that the baking temperature in post-baking finishing process B is adjusted from 140°C to 160°C.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 9 and Example 2 is that the baking temperature in post-baking finishing process B is adjusted from 140°C to 160°C, and the baking time is 3 minutes. Adjust to bake for 6 minutes.
  • a delay-baking and non-ironing finishing process of cotton fabrics refers to Example 2.
  • the difference between Example 10 and Example 2 is that the baking temperature in the post-baking finishing process B is adjusted from 140°C to 160°C, and the baking time is 3 minutes. Adjust to bake for 8 minutes.
  • the specific process of the desizing process is as follows: the fabric is immersed in the enzyme liquid ⁇ steamed (stacked at 100°C for 20 minutes) ⁇ washed with water (95°C) ⁇ dried. Conditions: desizing enzyme 3g/L; penetrant 4g/L; chelating agent 2g/L; vehicle speed 70m/min;
  • the specific flow of the liquid ammonia process is: cloth feeding ⁇ pre-drying ⁇ cooling ⁇ liquid ammonia treatment (dipping liquid ammonia for 15s ⁇ drying) ⁇ steaming (95°C) ⁇ water washing (95°C) ⁇ drying ⁇ cloth falling .
  • the specific process of the mercerizing process is as follows: the fabric is immersed in the lye (5min) ⁇ washed (with tension applied, 95°C) ⁇ neutralized and the pH value of the washing tank is adjusted to neutral. Conditions: concentrated alkali 239g/L; vehicle speed 70m/min; pH value of neutralization washing tank 4.5; cloth drop width 140cm.
  • a kind of delayed baking non-ironing finishing process of cotton fabric refers to Example 5, the difference between Comparative Example 4 and Example 5 is:
  • Pretreatment process singeing ⁇ desizing ⁇ mercerizing ⁇ liquid ammonia.
  • a kind of cotton fabric delayed baking non-ironing finishing process refers to embodiment 5, and the difference between comparative example 5 and embodiment 5 is:
  • Pretreatment process singeing ⁇ desizing ⁇ mercerizing ⁇ liquid ammonia ⁇ liquid ammonia.
  • the delayed baking cotton fabric that makes in embodiment 2 ⁇ 10 and comparative example 3 ⁇ 5 measures the cotton fabric in embodiment 2 ⁇ 10 and comparative example 3 ⁇ 5 according to AATCC66-2008 and standard ASTMD5035-2006 and standard AATCC110-2011.
  • the wrinkle recovery angle, breaking strength and whiteness data before and after medium treatment are shown in Table 4.
  • the wrinkle recovery angle, breaking strength and whiteness data of the delayed baking fabrics prepared in Examples 2 to 10 in Table 4 are integrated, and the processed
  • the overall performance of the delayed baking fabric is the best, the baking time adopted in the present invention is preferably 3min in Example 8, and the baking temperature is preferably 160°C in Example 8.
  • Example 5 From the wrinkle recovery angle and breaking strength data of the delayed baking fabrics prepared in Example 5 and Comparative Examples 4-5 in Table 4, the performance of the delayed baking fabrics prepared in Example 5 is the best, and the present invention A good combination is formed between the pretreatment processes provided in . When one process is reduced or the process sequence is changed, the non-ironing performance of the obtained fabric after baking is significantly reduced.

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Abstract

一种棉织物延迟焙烘免烫整理工艺，其包括以下步骤：烧毛→退浆→液氨→丝光→液氨→后焙烘整理。该整理工艺显著提高延迟焙烘中延迟焙烘敏化织物稳定性，改善延迟焙烘敏化织物仓储过程中缓慢反应所带来的问题，有利于产品品质提升。

Description

一种棉织物延迟焙烘免烫整理工艺 技术领域
本发明涉及纺织品后整理技术领域，特别是涉及一种棉织物延迟焙烘免烫整理工艺。
背景技术
棉织物作为一种柔软且透气性较好的面料，同时存在着容易起皱与出现变形的问题。针对棉织物的这些缺点，目前较有效的工艺方法是对其进行免烫整理和液氨整理等。前焙烘免烫、潮态免烫、后焙烘免烫、成衣免烫等都是免烫整理中比较具有代表性的整理方式。其中，延迟焙烘法是一种有利于成衣获得更优良定形效果的免烫整理工艺，但该工艺制得的延迟焙烘敏化织物的稳定性较低一直是其工艺开发中的关键问题。具体表现在储存运输过程中棉织物与树脂之间发生部分交联反应，从而产生难以去除的折皱，同时造成延迟焙烘敏化织物的白度降低等问题。
现有技术中，人们大多是通过设计优化树脂整理剂和催化体系对延迟焙烘敏化织物的仓储稳定性进行改善，通过优化整理工艺以实现前述改进效果的文献未见报道。
发明内容
本部分的目的在于概述本发明的实施例的一些方面以及简要介绍一些较佳实施例。在本部分以及本申请的说明书摘要和发明名称中可能会做些简化或省略以避免使本部分、说明书摘要和发明名称的目的模糊，而这种简化或省略不能用于限制本发明的范围。
为解决上述技术问题，本发明提供了如下技术方案：
作为本发明的第一方面，本发明提供了一种棉织物延迟焙烘免烫整理工艺，依次包括以下工序：烧毛→退浆→液氨→丝光→液氨→后焙烘整理；其中，所述后焙烘整理工序的具体流程为：棉织物浸轧→预烘。
作为本发明的一种实施方式，本发明提供了一种棉织物延迟焙烘免烫整理工艺，依次包括以下工序：烧毛→退浆→液氨→丝光→液氨→后焙烘整理；其中，所述后焙烘整理工序的具体流程为：棉织物浸轧→预烘→储存→焙烘。
作为本发明的一种实施方式，所述后焙烘整理工序中的焙烘条件：焙烘温度140～160℃，焙烘时间3～6min。
作为本发明的一种实施方式，所述后焙烘整理工序中的预烘条件：在80-85℃(优选为80℃)中预烘2-3min(优选为3min)后得到延迟焙烘敏化织物，其落布含潮率7-9％(优选为8％)。
作为本发明的一种实施方式，所述后焙烘整理工序中的棉织物浸轧后的织物轧余率为70～90％。
作为本发明的一种实施方式，所述后焙烘整理工序中的棉织物浸轧所采用的浸轧方式为二浸二轧。
作为本发明的一种实施方式，所述液氨工序的具体流程为：进布→预烘→冷却→液氨处理→汽蒸→水洗→烘干。
作为本发明的一种实施方式，所述液氨工序中的液氨处理步骤：浸轧液氨13-17s(优选为15s)→烘干。
作为本发明的一种实施方式，所述液氨工序中的汽蒸温度为90-100℃(优选为95℃)；和/或，所述液氨工序中的水洗温度为90-100℃(优选为95℃)。
作为本发明的一种实施方式，所述液氨工序流程中的车速为50～60m/min，处理室温度80℃，落布pH值6。
作为本发明的一种实施方式，所述丝光工序的具体流程为：织物浸入碱液→水洗→中和水洗槽pH值调至中性。
作为本发明的一种实施方式，所述丝光工序中的织物浸入碱液的时间为4-6min(优选为5min)。
作为本发明的一种实施方式，所述丝光工序中的水洗条件：施加张力，水洗温度为90-100℃(优选为95℃)。
作为本发明的一种实施方式，所述丝光工序流程中的车速为60-70m/min(优选为70m/min)，中和水洗槽pH值4.5～5.0。
作为本发明的一种实施方式，所述退浆工序的具体流程为：棉织物浸入酶液→汽蒸→水洗→烘干。
作为本发明的一种实施方式，所述退浆工序中的汽蒸条件：100℃堆置20min。
作为本发明的一种实施方式，所述退浆工序中的水洗温度为90-100℃(优选为95℃)。
作为本发明的一种实施方式，所述退浆工序的条件为：退浆酶3g/L；渗透剂4g/L；螯合剂2g/L，车速60-70m/min(优选为70m/min)。
作为本发明的第二方面，本发明提供了一种由前述的棉织物延迟焙烘免烫整理工艺处理得到的延迟焙烘织物产品。
作为本发明的第三方面，本发明提供了一种前述的延迟焙烘织物产品在免烫服装中的应用。
本发明的技术方案具有如下优点和效果：
(1)本发明创造性地提出了通过优化整理工艺以对延迟焙烘敏化织物的仓储稳定性进行改善，具体地，通过在后焙烘整理工序之前设计特定顺序的液氨与丝光的联合工序(即烧毛→退浆→液氨→丝光→液氨→后焙烘整理)，在不改变单独工序的工艺参数的前提下，实现处理所得延迟焙烘敏化织物的仓储稳定性的显著提升，克服了现有技术中棉织物整理领域，对于提升延迟焙烘敏化织物的仓储稳定性往往只通过设计优化树脂整理剂和催化体系的技术手段，而几乎不去考虑后焙烘整理的前处理工艺中各工序之间的相对顺序对于延迟焙烘敏化织物的仓储稳定性所带来的影响的技术偏见。本发明正是采用了由于技术偏见而被舍弃的技术手段，从而解决了前述技术问题。
(2)本发明取得了预料不到的技术效果。本发明将特定顺序的预处理工艺“烧毛→退浆→液氨→丝光→液氨”与“后焙烘整理”(不含储存→焙烘步骤)相结合，显著增强了延迟焙烘敏化织物的仓储稳定性，改善延迟焙烘敏化织物仓储过程中缓慢反应所带来的难以去除的折皱，白度降低等问题，有利于产品品质提升，具体表现为：本发明制得的延迟焙烘敏化织物在储存5天的断裂强力整体变化较缓，且其折皱回复角增加速度总体较慢，白度一直最高。本发明中提供的预处理工艺“烧毛→退浆→液氨→丝光→液氨”与“后焙烘整理”之间形成良好结合，当减少了一道工序或更换了预处理工艺的顺序时，制得延迟焙烘敏化织物稳定性出现了明显的下降。
(3)将本发明提出的预处理工艺“烧毛→退浆→液氨→丝光→液氨”与“后焙烘整理”(含储存→焙烘步骤)结合后，相较于单独的预处理工艺’“烧毛→退浆→液氨→丝光→液氨→拉幅→预缩”，制得的棉织物的折皱回复角提高了32.5％，说明折皱回复性能得到了很大的提升，断裂强力保留率可达87.8％，免烫效果更优。
(4)本发明的处理工艺较为简单可行，适用于工业化规模化生产。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合说明书实施例对本发明的具体实施方式做详细的说明。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是本发明还可以采用其他不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似推广，因此本发明不受下面公开的具体实施例的限制。
其次，此处所称的“一个实施例”或“实施例”是指可包含于本发明至少一个实现方式中的特定特征、结构或特性。在本说明书中不同地方出现的“在一个实施例中”并非均指同一个实施例，也不是单独的或选择性的与其他实施例互相排斥的实施例。
本发明实施例和对照例采用的原料为白色平纹棉织物(120根/10cm×70根/10cm)
实施例1(延迟焙烘敏化织物，工艺不含储存→焙烘步骤)
一种棉织物延迟焙烘免烫整理工艺包括预处理过程和后处理过程。
预处理过程：烧毛→退浆→液氨→丝光→液氨；
所述退浆工艺具体流程为：织物浸入酶液→汽蒸(100℃堆置20min)→水洗(95℃)→烘干。条件：退浆酶3g/L；渗透剂4g/L；螯合剂2g/L；车速70m/min；
所述液氨工艺具体流程为：进布→预烘→冷却→液氨处理(浸轧液氨15s→烘干)→汽蒸(95℃)→水洗(95℃)→烘干→落布。条件：车速60m/min；处理室温度80℃；落布pH值6；
所述丝光工艺具体流程为：织物浸入碱液(5min)→水洗(施加张力，95℃)→中和水洗槽pH值调至中性。条件：浓碱239g/L；车速70m/min；中和水洗槽pH值4.5；落布门幅140cm。
后处理过程(后焙烘整理工序A)：将棉织物置于常规整理液中二浸二轧，轧余率为80％。棉织物浸轧整理液后，80℃下预烘3min，得到延迟焙烘敏化织物，其落布含潮率8％。
对照例1
一种棉织物延迟焙烘免烫整理工艺参照实施例1，对照例1与实施例1的区别在于：
预处理过程：烧毛→退浆→丝光→液氨。
对照例2
一种棉织物延迟焙烘免烫整理工艺参照实施例1，对照例2与实施例1的区别在于：
预处理过程：烧毛→退浆→丝光→液氨→液氨。
将实施例1和对照例1～2制得的延迟焙烘敏化织物在80℃下储存5d，并按照标准AATCC66-2008和标准ASTMD5035—2006和标准AATCC110-2011测定延迟焙烘敏化织物在实施例1和对照例1～2中的折皱回复角、断裂强力和白度数据。以织物浸轧整理液前的预处理织物的折皱回复角和断裂强力为参考值，计算断裂强力变化率和折皱回复角变化率。
折皱回复角变化率W(％)按式(1)计算，得到的数据如表1所示：
Figure PCTCN2022097087-appb-000001
式中：W 0为浸轧整理液前的预处理织物的折皱回复角(°)；W S为延迟焙烘敏化织物存储前后的折皱回复角(°)。
断裂强力变化率T SC(％)按式(2)计算并取绝对值，得到的数据如表2所示：
Figure PCTCN2022097087-appb-000002
式中：T S0为浸轧整理液前的预处理织物的断裂强力(N)；T S为延迟焙烘敏化织物存储前后的断裂强力(N)。
其中，实施例1中浸轧整理液前的预处理织物的折皱回复角和断裂强力为176.27°和437.57N；对照例1中浸轧整理液前的预处理织物的折皱回复角和断裂强力为164.5°和431.3N；对照例2中浸轧整理液前的预处理织物的折皱回复角和断裂强力为167.23°和439.33N。
测定白度得到的数据如表3所示。
表1 实施例1和对照例1～2中制得延迟焙烘敏化织物的折皱回复角变化率(％)数据
  0d 1d 2d 3d 4d 5d
实施例1 16.58 24.18 29.22 33.89 35.95 36.57
对照例1 15.67 35.97 42.77 44.24 47.49 49.77
对照例2 18.12 34.91 41.59 43.36 45.08 48.62
表2 实施例1和对照例1～2中制得延迟焙烘敏化织物的断裂强力变化率(％)数据
  0d 1d 2d 3d 4d 5d
实施例1 9.96 10.83 13.65 14.88 15.22 16.21
对照例1 4.26 13.59 16.99 19.05 21.23 22.01
对照例2 6.82 9.85 13.33 15.47 17.49 18.06
表3 实施例1和对照例1～2中制得延迟焙烘敏化织物的白度数据
  0d 1d 2d 3d 4d 5d
实施例1 79.59 76.89 76.66 75.02 74.78 74.56
对照例1 76.55 75.02 73.99 73.96 73.22 72.37
对照例2 76.21 72.06 71.88 71.01 70.98 70.06
由上述数据中实施例1与对照例1～2中制得延迟焙烘敏化织物的折皱回复角变化率、断裂强力变化率和白度数据可得，实施例1中制得敏化织物的断裂强力整体变化较缓，且其折皱回复角增加速度总体较慢，白度一直最高。在储存5d后，实施例1制得延迟焙烘敏化织物的强力变化率绝对值最小，折皱回复变化率也是最低的。因此实施例1中制得延迟焙烘敏化织物稳定性最优，本发明中提供的预处理工艺之间形成良好结合，当减少了一道工序或更换了工艺顺序时，制得延迟焙烘敏化织物稳定性出现了明显的下降。
实施例2(延迟焙烘织物，工艺含储存→焙烘步骤)
一种棉织物延迟焙烘免烫整理工艺包括预处理过程和后处理过程。
预处理过程：烧毛→退浆→液氨→丝光→液氨；
所述退浆工艺具体流程为：织物浸入酶液→汽蒸(100℃堆置20min)→水洗(95℃)→烘干。条件：退浆酶3g/L；渗透剂4g/L；螯合剂2g/L；车速70m/min；
所述液氨工艺具体流程为：进布→预烘→冷却→液氨处理(浸轧液氨15s→烘干)→汽蒸(95℃)→水洗(95℃)→烘干→落布。条件：车速60m/min；处理室温度80℃；落布pH值6；
所述丝光工艺具体流程为：织物浸入碱液(5min)→水洗(施加张力，95℃)→中和水洗槽pH值调至中性。条件：浓碱239g/L；车速70m/min；中和水洗槽pH值4.5；落布门幅140cm。
后处理过程(后焙烘整理工序B)：将棉织物置于整理液中二浸二轧，轧余率为70％-80％。。棉织物浸轧整理液后，80℃下预烘3min，经储存后140℃下焙烘3min，得到延迟焙烘织物。
实施例3
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例3与实施例2的区别在于：将后焙烘整理工序B中的焙烘3min调整为焙烘6min。
实施例4
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例4与实施例2的区别在于：将后焙烘整理工序B中的焙烘3min调整为焙烘8min。
实施例5
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例5与实施例2的区别在于：将后焙烘整理工序B中的焙烘温度由140℃调整为150℃。
实施例6
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例6与实施例2的区别在于：将后焙烘整理工序B中的焙烘温度由140℃调整为150℃，焙烘3min调整为焙烘6min。
实施例7
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例7与实施例2的区别在于：将后焙烘整理工序B中的焙烘温度由140℃调整为150℃，焙烘3min调整为焙烘8min。
实施例8
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例8与实施例2的区别在于：将后焙烘整理工序B中的焙烘温度由140℃调整为160℃。
实施例9
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例9与实施例2的区别在于：将后焙烘整理工序B中的焙烘温度由140℃调整为160℃，焙烘3min调整为焙烘6min。
实施例10
一种棉织物延迟焙烘免烫整理工艺参照实施例2，实施例10与实施例2的区别在于：将后焙烘整理工序B中的焙烘温度由140℃调整为160℃，焙烘3min调整为焙烘8min。
对照例3
一种基于液氨与丝光联合整理的棉织物处理工艺：烧毛→退浆→液氨→丝光→液氨→拉幅→预缩；
所述的退浆工艺具体流程为：织物浸入酶液→汽蒸(100℃堆置20min)→水洗(95℃)→烘干。条件：退浆酶3g/L；渗透剂4g/L；螯合剂2g/L；车速70m/min；
所述的液氨工艺具体流程为：进布→预烘→冷却→液氨处理(浸轧液氨15s→烘干)→汽蒸(95℃)→水洗(95℃)→烘干→落布。条件：车速60m/min；处理室温度80℃；落布pH值6；
所述的丝光工艺具体流程为：织物浸入碱液(5min)→水洗(施加张力，95℃)→中和水洗槽pH值调至中性。条件：浓碱239g/L；车速70m/min；中和水洗槽pH值4.5；落布门幅140cm。
对照例4
一种棉织物延迟焙烘免烫整理工艺参照实施例5，对照例4与实施例5的区别在于：
预处理过程：烧毛→退浆→丝光→液氨。
对照例5
一种棉织物延迟焙烘免烫整理工艺参照实施例5，对照例5与实施例5的区别在于：
预处理过程：烧毛→退浆→丝光→液氨→液氨。
将实施例2～10和对照例3～5中制得的延迟焙烘棉织物按照AATCC66-2008和标准ASTMD5035—2006和标准AATCC110-2011测定棉织物在实施例2～10和对照例3～5中处理前后的折皱回复角、断裂强力和白度数据，得到的数据如表4所示。
表4 实施例2～10和对照例3～5中制得延迟焙烘织物的折皱回复角、断裂强力和白度数据
Figure PCTCN2022097087-appb-000003
Figure PCTCN2022097087-appb-000004
由表4中实施例2～10中制得的延迟焙烘织物的折皱回复角、断裂强力和白度数据可得，综合折皱回复角、断裂强力和白度数据数据，实施例8制得处理后的延迟焙烘织物的综合性能最好，本发明采用的焙烘时间优选为实施例8中的3min，焙烘温度优选为实施例8中的160℃。
由表4中实施例5制得的延迟焙烘棉织物与对照例3中制得的棉织物的折皱回复角、断裂强力和白度数据对比可知，将本发明提出的预处理工艺与后焙烘整理结合后，相较于单独的预处理工艺，织物的折皱回复角提高了32.5％，折皱回复性能得到了很大的提升，断裂强力保留率可达87.8％，免烫效果更优。
由表4中实施例5与对照例4～5中制得的延迟焙烘织物的折皱回复角和断裂强力数据可得，实施例5中制得的延迟焙烘织物的性能最优，本发明中提供的预处理工艺之间形成良好结合，当减少了一道工序或更换了工艺顺序时，制得织物的焙烘后的免烫性能出现了明显的下降。
应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (6)

  1. 一种棉织物延迟焙烘免烫整理工艺，其特征在于，所述棉织物为白色平纹棉织物，规格为120根/10cm×70根/10cm，所述工艺依次包括以下工序：烧毛→退浆→液氨→丝光→液氨→后焙烘整理；其中，
    所述液氨工序的具体流程为：进布→预烘→冷却→液氨处理→汽蒸→水洗→烘干；其中，所述液氨工序流程中的车速为50～60m/min，处理室温度80℃，落布pH值6；所述液氨工序中的汽蒸温度为90-100℃；所述液氨工序中的水洗温度为90-100℃；
    所述丝光工序的具体流程为：织物浸入碱液→水洗→通过中和水洗槽将pH值调至中性；其中，所述丝光工序中的织物浸入碱液的时间为4-6min；所述丝光工序中的水洗条件：施加张力，水洗温度为90-100℃；所述丝光工序流程中的车速为60-70m/min，中和水洗槽pH值4.5～5.0；
    所述后焙烘整理工序的具体流程为：棉织物浸轧→预烘；
    所述后焙烘整理工序中的棉织物浸轧所采用的浸轧方式为二浸二轧；所述后焙烘整理工序中的棉织物浸轧后的织物轧余率为70～90％；
    所述后焙烘整理工序中的预烘条件：在80-85℃中预烘2-3min后得到延迟焙烘敏化织物，其落布含潮率7-9％。
  2. 一种棉织物延迟焙烘免烫整理工艺，其特征在于，所述棉织物为白色平纹棉织物，规格为120根/10cm×70根/10cm，所述工艺依次包括以下工序：烧毛→退浆→液氨→丝光→液氨→后焙烘整理；其中，
    所述液氨工序的具体流程为：进布→预烘→冷却→液氨处理→汽蒸→水洗→烘干；其中，所述液氨工序流程中的车速为50～60m/min，处理室温度80℃，落布pH值6；所述液氨工序中的汽蒸温度为90-100℃；所述液氨工序中的水洗温度为90-100℃；
    所述丝光工序的具体流程为：织物浸入碱液→水洗→通过中和水洗槽将pH值调至中性；其中，所述丝光工序中的织物浸入碱液的时间为4-6min；所述丝光工序中的水洗条件：施加张力，水洗温度为90-100℃；所述丝光工序流程中的车速为60-70m/min，中和水洗槽pH值4.5～5.0；
    所述后焙烘整理工序的具体流程为：棉织物浸轧→预烘→储存→焙烘；
    所述后焙烘整理工序中的棉织物浸轧所采用的浸轧方式为二浸二轧；所述后焙烘整理工序中的棉织物浸轧后的织物轧余率为70～90％；
    所述后焙烘整理工序中的预烘条件：在80-85℃中预烘2-3min后得到延迟焙烘敏化织物，其落布含潮率7-9％；
    所述后焙烘整理工序中的焙烘条件：焙烘温度140～160℃，焙烘时间3～6min。
  3. 根据权利要求2所述的棉织物延迟焙烘免烫整理工艺，其特征在于，所述后焙烘整理工序中的焙烘条件：焙烘温度为160℃，焙烘时间为3min。
  4. 根据权利要求1或2所述的棉织物延迟焙烘免烫整理工艺，其特征在于，所述退浆工序的具体流程为：棉织物浸入酶液→汽蒸→水洗→烘干；其中，所述退浆工序中的汽蒸条件：100℃堆置20min；所述退浆工序中的水洗温度为90-100℃。
  5. 由权利要求1-4任一所述的棉织物延迟焙烘免烫整理工艺处理得到的延迟焙烘织物产品。
  6. 权利要求5所述的延迟焙烘织物产品在免烫服装中的应用。
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