Finishing method for peach skin style fabric

Abstract

The present application belongs to the finishing technology field of textile fabric, and particularly relates to a finishing method of peach skin style fabric. The finishing method of the peach skin style fabric comprises the following finishing processes: fabric singeing, desizing, low-alkali mercerizing, liquid ammonia, enzyme washing, inactivation, washing, loose drying, tentering and preshrinking. The fabric is made of regenerated cellulose fiber. The finishing method of the peach skin style fabric provided by the present application has a short process flow, generates less wastewater, and the prepared fabric has good drape and resilience and good hand feeling.

Description

Technical Field

[0001] This invention belongs to the field of finishing technology of textile fabrics, specifically relating to a finishing method for peach skin velvet style fabrics. Background Technology

[0002] Peach skin velvet fabric is a novel type of napped fabric. Its surface has a dense, short nap that is not visible to the naked eye but can be felt against the skin, giving it a delicate and soft feel, and a relatively high-end appearance, making it popular with consumers. Existing technologies have also developed several processing methods for peach skin velvet fabric, mainly through the following technical approaches:

[0003] CN113215809A discloses a method for preparing lyocell peach skin fabric. The method uses woven fabric containing lyocell fibers as the base fabric and prepares it through a process of singeing, desizing, bleaching, dyeing, stretching, alkaline washing, enzyme washing and water washing. This process requires high-temperature bleaching, high-temperature alkaline washing and other processes, which are relatively long and energy-intensive.

[0004] CN104278469A discloses a brushing process for preparing Lyocell fabric with a peach skin velvet style. The velvet effect is achieved through two brushing processes, but the feel is different from the fine velvet achieved by fibrillation.

[0005] CN110965243A discloses a processing method for imitation peach skin velvet fabric. This method uses a brushing method to achieve a velvety finish, which lacks the delicate feel of the open fiber method. At the same time, brushing finishing methods affect the fabric's poor pilling and strength.

[0006] CN102978959A discloses a processing method for ultra-soft home textile fabrics, which involves blending, pretreatment of greige fabric, primary fibrillation, enzyme treatment, dyeing, secondary fibrillation, softening and resin finishing. The fibrillation process is relatively complex and requires high-temperature treatment, and the process is long and energy-intensive.

[0007] CN104746263A discloses a processing method for polyester peach skin fabric, which includes desizing → mercerizing → alkali reduction → air washing → setting → carbon brush brushing → pre-shrinking → fabric stacking. Desizing uses a dewaxing agent to remove oil from the fabric surface; mercerizing uses an alkali concentration of 170-200 g / L and a machine speed of 50-70 m / min; alkali reduction uses caustic soda at a dosage of 5 g / L, a treatment time of 1 hour, and a reduction rate controlled at 5.0%; the air washing process uses a fan speed of 2200 r / min and a treatment time of 30 minutes; the setting process is carried out at a temperature of 170℃, and a nano-moisture-absorbing and quick-drying finishing agent is applied to improve the fabric's moisture absorption.

[0008] CN112981803A discloses a high-count peach skin cotton fabric, its preparation method and application. The fabric is subjected to desizing, mercerizing, multiple raising, singeing and washing processes to effectively improve the softness of the cotton fabric.

[0009] CN102041685A discloses a finishing method for fiber products that do not require detergent washing. The process includes singeing, desizing, enzyme stacking, mercerizing, liquid ammonia, pretreatment, stretching, baking, and pre-shrinking. The textiles have multiple functions such as stain resistance, easy stain removal, moderate oil resistance, and excellent water absorption, breathability, washability, and antistatic properties.

[0010] The above methods mainly achieve the peach skin velvet style effect through brushing or high-temperature alkaline washing, but the velvet effect is poor or the process is too long and the production cost is high. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a finishing method for peach skin velvet style fabric. The process is short, the wastewater generation is small, and the resulting fabric has good drape and resilience, and a good hand feel.

[0012] The finishing method for peach skin velvet style fabric of the present invention includes the following finishing processes: singeing of greige fabric → desizing → low alkali mercerizing → liquid ammonia → enzyme washing → inactivation → water washing → loose drying → stretching → pre-shrinking;

[0013] The fabric is made of regenerated cellulose fibers.

[0014] Furthermore, the fiber content of both the warp and weft yarns of the greige fabric is greater than 65%.

[0015] Furthermore, the singeing process employs a alternating positive and negative singeing method, selecting the flame opening positions for opposite singeing, with a flame intensity of 8–12 mbar and a vehicle speed of 95–100 m / min.

[0016] Furthermore, the desizing process uses biological enzymes for desizing. The concentration of desizing enzyme in the desizing solution is 25-30 g / L, the concentration of penetrant is 2-3 g / L, the concentration of refining agent is 10-15 g / L, and the remainder is water. In the desizing process, the steaming temperature is 95-100℃, the washing temperature is 90-95℃, the machine speed is 70-90 m / min, and the fabric stacking time is 5-10 min.

[0017] Furthermore, the low-alkali mercerizing process uses a straight roller mercerizing machine to mercerize the fabric. The fabric is then subjected to multiple dips and rolls in NaOH alkaline solution using multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 35-70 g / L, and the temperature of the NaOH alkaline solution is 25-40℃.

[0018] Furthermore, the liquid ammonia process has a running speed of 20–40 m / min and a pH value of 5–6.

[0019] Furthermore, the enzyme washing process is carried out in an overflow dyeing machine, with cellulase dosage at 2% of fabric weight, solution volume at 600–1000 L, temperature at 45–50 °C, and treatment time at 30–60 min.

[0020] Furthermore, after enzyme washing, the inactivation process is carried out directly in the overflow staining machine by adding 5-8 g / L of Na2CO3, raising the temperature to 60-70°C, and the time to 5-10 min.

[0021] Furthermore, the washing process is carried out in an overflow dyeing machine, with 2-3 g / L of hydrophilic softener aqueous solution added, the solution volume being 400-600 L, and the washing time being 10-15 min; the loose drying temperature is 110-120℃, and the machine speed is 15-20 m / min; the stretching process uses 20-30 g / L of hydrophilic softener.

[0022] Furthermore, the pre-shrinking process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being laid out. The temperature of the rubber blanket is 100-110℃ and the temperature of the felt blanket is 110-120℃.

[0023] Specifically, the finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0024] The greige fabric is made from regenerated cellulose fibers, specifically lyocell and / or modal. Both the warp and weft yarns of the greige fabric contain more than 65% fiber.

[0025] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected to be opposite, the flame intensity is 8-12 mbar, and the machine speed is 95-100 m / min.

[0026] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 25-30 g / L, the concentration of penetrant is 2-3 g / L, the concentration of refining agent is 10-15 g / L, and the remainder is water. In the desizing process, the steaming temperature is 95-100℃, the water washing temperature is 90-95℃, the machine speed is 70-90 m / min, and the stacking time is 5-10 min.

[0027] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 35-70 g / L and the temperature of the NaOH alkaline solution is 25-40℃.

[0028] (4) Liquid ammonia: vehicle speed is 20-40 m / min, pH value is 5-6.

[0029] (5) Enzyme washing: carried out in an overflow dyeing machine, the amount of cellulase is 2% of the fabric weight, the solution volume is 600-1000L, the temperature is 45-50℃, and the treatment time is 40-60min.

[0030] (6) Inactivation: After enzyme washing, add 5-8 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 60-70℃, and the time is 5-10 min.

[0031] (7) Washing: The washing is carried out in an overflow dyeing machine. Add 2-3 g / L of hydrophilic softener aqueous solution, the solution volume is 400-600 L, and the washing time is 10-15 min.

[0032] (8) Loose drying: The drying temperature is 110~120℃, and the speed is 15~20m / min;

[0033] (9) Tensioning: Use 20-30g / L of hydrophilic softener.

[0034] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 100-110℃ and the temperature of the felt blanket is 110-120℃.

[0035] The finishing method of peach skin velvet style fabric of the present invention uses greige fabric containing regenerated cellulose fibers such as lyocell and modal as raw material. The finishing process mainly includes the following steps: singeing → desizing → low alkali mercerizing → liquid ammonia → enzyme washing → inactivation → water washing → loose drying → stretching → pre-shrinking.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] (1) The finishing method of the peach skin velvet style fabric of the present invention can be carried out at room temperature or medium temperature for low alkali mercerizing, enzyme washing and other related fiber opening processes, without the need for long-term high temperature treatment, and the process flow is short, which reduces production time, saves energy and reduces production costs.

[0038] (2) The finishing method of the peach skin velvet style fabric of the present invention does not involve the addition of strong acid and alkali or oxidizing agents such as caustic soda and H2O2 in the relevant fiber opening process, thereby reducing the cost of finishing wastewater treatment and potential environmental risks.

[0039] (3) The peach skin style fabric prepared by the finishing method of the present invention can achieve a fine and uniform peach skin style on the fabric surface, and the fabric has good drape and elasticity, and a good hand feel. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the appearance features of the finished fabric in Example 1.

[0041] Figure 2 This is a schematic diagram of the appearance characteristics of the finished fabric in Comparative Example 1.

[0042] Figure 3 This is a schematic diagram of the appearance characteristics of the finished fabric in Comparative Example 2. Detailed Implementation

[0043] The present invention will be further described below with reference to specific embodiments.

[0044] Example 1

[0045] The finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0046] Fabric structure: 1 / 1; warp and weft yarn count: LYOCELLCPT50*LYOCLELCPT50; warp and weft density: 140 threads / inch * 90 threads / inch; fabric fiber blend: 100% Lyocell.

[0047] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 10mbar, and the speed is 100m / min.

[0048] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 27g / L, the concentration of penetrant is 2.5g / L, the concentration of refining agent is 12g / L, and the remainder is water. In the desizing process, the steaming temperature is 95℃, the water washing temperature is 92℃, the machine speed is 80m / min, and the stacking time is 8min.

[0049] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 50g / L and the temperature of the NaOH alkaline solution is 30℃.

[0050] (4) Liquid ammonia: vehicle speed is 30m / min, pH value is 5-6.

[0051] (5) Enzyme washing: The washing is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 800L, the temperature is 50℃, and the treatment time is 50min.

[0052] (6) Inactivation: After enzyme washing, add 7 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 65℃, and the time is 8 min.

[0053] (7) Washing: The washing is carried out in an overflow dyeing machine. Add 2.5 g / L of hydrophilic softener aqueous solution, the solution volume is 500 L, and the washing time is 12 min.

[0054] (8) Loose drying: The drying temperature is 110℃ and the vehicle speed is 20m / min;

[0055] (9) Tensioning: Use 25g / L of hydrophilic softener.

[0056] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 100℃ and the temperature of the felt blanket is 110℃.

[0057] Example 2

[0058] The finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0059] Fabric structure: 1 / 1; warp and weft yarn count: LYOCELLCPT60*LYOCLELCPT60; warp and weft density: 150 threads / inch * 100 threads / inch; fabric fiber blend: 100% Lyocell.

[0060] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 8mbar, and the speed is 100m / min.

[0061] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 25g / L, the concentration of penetrant is 2g / L, the concentration of refining agent is 10g / L, and the remainder is water. In the desizing process, the steaming temperature is 95℃, the water washing temperature is 90℃, the machine speed is 90m / min, and the stacking time is 5min.

[0062] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 35g / L and the temperature of the NaOH alkaline solution is 25℃.

[0063] (4) Liquid ammonia: vehicle speed is 40m / min, pH value is 5-6.

[0064] (5) Enzyme washing: carried out in an overflow dyeing machine, the amount of cellulase used is 2% of the fabric weight, the solution volume is 1000L, the temperature is 50℃, and the treatment time is 40min.

[0065] (6) Inactivation: After enzyme washing, add 6 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 65℃, and the time is 8 min.

[0066] (7) Washing: The washing process is carried out in an overflow dyeing machine. Add 2 g / L of hydrophilic softener aqueous solution, the solution volume is 400 L, and the washing time is 10 min.

[0067] (8) Loose drying: The drying temperature is 110℃ and the vehicle speed is 20m / min;

[0068] (9) Tensioning: Use 20g / L of hydrophilic softener.

[0069] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 105℃ and the temperature of the felt blanket is 115℃.

[0070] Example 3

[0071] The finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0072] Fabric structure: 1 / 1; warp and weft yarn count: MODALCPT40*MODALCPT40; warp and weft density: 120 threads / inch*80 threads / inch; fabric fiber blend: 100% Modal.

[0073] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 10mbar, and the machine speed is 95m / min.

[0074] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 30g / L, the concentration of penetrant is 2.5g / L, the concentration of refining agent is 12g / L, and the remainder is water. In the desizing process, the steaming temperature is 95℃, the water washing temperature is 90℃, the machine speed is 80m / min, and the stacking time is 8min.

[0075] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 70g / L and the temperature of the NaOH alkaline solution is 35℃.

[0076] (4) Liquid ammonia: vehicle speed is 20m / min, pH value is 5-6.

[0077] (5) Enzyme washing: The washing is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 600L, the temperature is 50℃, and the treatment time is 60min.

[0078] (6) Inactivation: After enzyme washing, add 8 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 65℃, and the time is 8 min.

[0079] (7) Washing: The washing is carried out in an overflow dyeing machine. Add 2.5 g / L of hydrophilic softener aqueous solution, the solution volume is 500 L, and the washing time is 15 min.

[0080] (8) Loose drying: The drying temperature is 115℃ and the speed is 15m / min;

[0081] (9) Tensioning: Use 20g / L of hydrophilic softener.

[0082] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 105℃ and the temperature of the felt blanket is 115℃.

[0083] Example 4

[0084] The finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0085] Fabric structure: 2 / 2 plain weave; warp and weft yarn count: LYOCELL / POLYCPT50*LYOCELL / POLYCPT50; warp and weft density: 130 threads / inch * 100 threads / inch; fabric fiber blend: 70% lyocell 30% polyester.

[0086] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 10mbar, and the speed is 100m / min.

[0087] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 27g / L, the concentration of penetrant is 2.5g / L, the concentration of refining agent is 12g / L, and the remainder is water. In the desizing process, the steaming temperature is 95℃, the water washing temperature is 92℃, the machine speed is 80m / min, and the stacking time is 8min.

[0088] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 50g / L and the temperature of the NaOH alkaline solution is 30℃.

[0089] (4) Liquid ammonia: vehicle speed is 30m / min, pH value is 5-6.

[0090] (5) Enzyme washing: The washing is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 800L, the temperature is 50℃, and the treatment time is 50min.

[0091] (6) Inactivation: After enzyme washing, add 7 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 65℃, and the time is 8 min.

[0092] (7) Washing: The washing process is carried out in an overflow dyeing machine. Add 2 g / L of hydrophilic softener aqueous solution, the solution volume is 400 L, and the washing time is 12 min.

[0093] (8) Loose drying: The drying temperature is 110℃ and the vehicle speed is 20m / min;

[0094] (9) Tensioning: Use 20g / L of hydrophilic softener.

[0095] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 105℃ and the temperature of the felt blanket is 115℃.

[0096] Example 5

[0097] The finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0098] Fabric structure: 2 / 2 weft-weight plain weave; warp and weft yarn count: LYOCELLCPT30*P150D; warp and weft density: 140 threads / inch * 75 threads / inch; fabric fiber blend: 68% lyocell and 32% polyester.

[0099] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 10mbar, and the speed is 100m / min.

[0100] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 30g / L, the concentration of penetrant is 3g / L, the concentration of refining agent is 15g / L, and the remainder is water. In the desizing process, the steaming temperature is 100℃, the water washing temperature is 95℃, the machine speed is 75m / min, and the fabric stacking time is 10min.

[0101] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 60g / L and the temperature of the NaOH alkaline solution is 35℃.

[0102] (4) Liquid ammonia: vehicle speed is 20m / min, pH value is 5-6.

[0103] (5) Enzyme washing: The washing is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 600L, the temperature is 50℃, and the treatment time is 60min.

[0104] (6) Inactivation: After enzyme washing, add 8 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 65℃, and the time is 8 min.

[0105] (7) Washing: The washing process is carried out in an overflow dyeing machine. Add 2 g / L of hydrophilic softener aqueous solution, the solution volume is 600 L, and the washing time is 10 min.

[0106] (8) Loose drying: The drying temperature is 120℃ and the vehicle speed is 15m / min;

[0107] (9) Tensioning: Use 30g / L of hydrophilic softener.

[0108] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 110℃ and the temperature of the felt blanket is 120℃.

[0109] Example 6

[0110] The finishing method for the peach-skin velvet style fabric includes the following finishing processes:

[0111] Fabric structure: 2 / 2 weft-weight plain weave; warp and weft yarn count: LYOCELLCPT32*LYOCELLCPT32; warp and weft density: 140 threads / inch * 75 threads / inch; fabric fiber blend: 100% Lyocell.

[0112] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 12mbar, and the machine speed is 95m / min.

[0113] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 30g / L, the concentration of penetrant is 3g / L, the concentration of refining agent is 15g / L, and the remainder is water. In the desizing process, the steaming temperature is 100℃, the water washing temperature is 95℃, the machine speed is 75m / min, and the fabric stacking time is 10min.

[0114] (3) Low-alkali mercerizing: The fabric is mercerized by a straight roller mercerizing machine. The fabric is immersed and rolled in NaOH alkaline solution by multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 70g / L and the temperature of the NaOH alkaline solution is 40℃.

[0115] (4) Liquid ammonia: vehicle speed is 20m / min, pH value is 5-6.

[0116] (5) Enzyme washing: The washing is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 600L, the temperature is 50℃, and the treatment time is 60min.

[0117] (6) Inactivation: After enzyme washing, add 8 g / L of Na2CO3 directly in the overflow staining machine, raise the temperature to 65℃, and the time is 8 min.

[0118] (7) Washing: The washing process is carried out in an overflow dyeing machine. Add 2 g / L of hydrophilic softener aqueous solution, the solution volume is 600 L, and the washing time is 10 min.

[0119] (8) Loose drying: The drying temperature is 120℃ and the vehicle speed is 15m / min;

[0120] (9) Tensioning: Use 30g / L of hydrophilic softener.

[0121] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 110℃ and the temperature of the felt blanket is 120℃.

[0122] Comparative Example 1

[0123] A method for finishing a fabric, comprising the following finishing processes:

[0124] Fabric structure: 1 / 1; warp and weft yarn count: LYOCELLCPT50*LYOCLELCPT50; warp and weft density: 140 threads / inch * 90 threads / inch; fabric fiber blend: 100% Lyocell.

[0125] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 10mbar, and the speed is 100m / min.

[0126] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 27g / L, the concentration of penetrant is 2.5g / L, the concentration of refining agent is 12g / L, and the remainder is water. In the desizing process, the steaming temperature is 95℃, the water washing temperature is 92℃, the machine speed is 80m / min, and the stacking time is 8min.

[0127] (3) Liquid ammonia: vehicle speed is 30m / min, pH value is 5-6.

[0128] (4) Alkali washing: carried out in an overflow dyeing machine, with NaOH dosage of 3g / L, solution volume of 500L, temperature of 65℃, and time of 40min.

[0129] (5) Enzyme washing: carried out in an overflow dyeing machine, the amount of cellulase is 2% of the fabric weight, the solution volume is 800L, the temperature is 50℃, and the treatment time is 50min.

[0130] (6) Inactivation: The inactivation was carried out in an overflow staining machine with a Na2CO3 dosage of 8 g / L, a solution volume of 600 L, a temperature of 65 °C, and a time of 10 min.

[0131] (7) Washing: The washing is carried out in an overflow dyeing machine. Add 2.5 g / L of hydrophilic softener aqueous solution, the solution volume is 500 L, and the washing time is 12 min.

[0132] (8) Loose drying: The drying temperature is 110℃ and the vehicle speed is 20m / min;

[0133] (9) Tensioning: Use silicone oil softener 25g / L.

[0134] (10) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 100℃ and the temperature of the felt blanket is 110℃.

[0135] Comparative Example 2

[0136] A method for finishing a fabric, comprising the following finishing processes:

[0137] Fabric structure: 1 / 1; warp and weft yarn count: LYOCELLCPT50*LYOCLELCPT50; warp and weft density: 140 threads / inch * 90 threads / inch; fabric fiber blend: 100% Lyocell.

[0138] (1) Singeing of the fabric: The singeing method is adopted with one positive and one negative direction. The flame position is selected as opposite burning, the flame intensity is 10mbar, and the speed is 100m / min.

[0139] (2) Desizing: Bio-enzyme desizing is adopted. The concentration of desizing enzyme in the desizing solution is 27g / L, the concentration of penetrant is 2.5g / L, the concentration of refining agent is 12g / L, and the remainder is water. In the desizing process, the steaming temperature is 95℃, the water washing temperature is 92℃, the machine speed is 80m / min, and the stacking time is 8min.

[0140] (3) Alkaline washing: carried out in an overflow dyeing machine, with NaOH dosage of 3 g / L, solution volume of 500 L, temperature of 65 °C, and time of 40 min.

[0141] (4) Enzyme washing: The washing is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 800L, the temperature is 50℃, and the treatment time is 50min.

[0142] (5) Inactivation: The inactivation was carried out in an overflow staining machine with a Na2CO3 dosage of 8 g / L, a solution volume of 600 L, a temperature of 65 °C, and a time of 10 min.

[0143] (6) Washing: The washing process is carried out in an overflow dyeing machine. Add 2.5 g / L of hydrophilic softener aqueous solution, the solution volume is 500 L, and the washing time is 12 min.

[0144] (7) Loose drying: The drying temperature is 110℃ and the vehicle speed is 20m / min;

[0145] (8) Tensioning: Use silicone oil softener 25g / L.

[0146] (9) Pre-shrinking: The process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being dropped into the fabric. The temperature of the rubber blanket is 100℃ and the temperature of the felt blanket is 110℃.

[0147] Of course, the above description is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The present invention is also not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of the present invention should fall within the patent coverage of the present invention.

Claims

1. A method for finishing a peach-skin velvet-style fabric, characterized in that: The finishing process includes the following steps: singeing of greige fabric → desizing → low-alkali mercerizing → liquid ammonia → enzyme washing → inactivation → water washing → loose drying → stretching → pre-shrinking; The fabric is made of regenerated cellulose fibers; The low-alkali mercerizing process uses a straight roller mercerizing machine to mercerize the fabric. The fabric is then subjected to multiple dips and rolls of NaOH alkaline solution on multiple pairs of straight rollers. The concentration of the NaOH alkaline solution is 35-70 g / L, and the temperature of the NaOH alkaline solution is 25-40℃. The liquid ammonia process has a running speed of 20–40 m / min and a pH value of 5–6.

2. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: The fiber content of both the warp and weft yarns of the greige fabric is greater than 65%.

3. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: The singeing process employs a alternating forward and reverse singeing method, selecting the flame opening positions for opposite singeing, with a flame intensity of 8–12 mbar and a vehicle speed of 95–100 m / min.

4. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: The desizing process uses biological enzymes for desizing. The concentration of desizing enzyme in the desizing solution is 25-30 g / L, the concentration of penetrant is 2-3 g / L, the concentration of refining agent is 10-15 g / L, and the remainder is water. In the desizing process, the steaming temperature is 95-100℃, the washing temperature is 90-95℃, the machine speed is 70-90 m / min, and the fabric stacking time is 5-10 min.

5. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: The enzyme washing process is carried out in an overflow dyeing machine. The amount of cellulase used is 2% of the fabric weight, the solution volume is 600-1000L, the temperature is 45-50℃, and the treatment time is 30-60min.

6. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: After enzyme washing, the inactivation process is carried out directly in the overflow staining machine by adding 5-8 g / L of Na2CO3, raising the temperature to 60-70℃, and the time to 5-10 min.

7. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: The washing process is carried out in an overflow dyeing machine, with 2-3 g / L of hydrophilic softener aqueous solution added, the solution volume being 400-600 L, and the washing time being 10-15 min; the loose drying temperature is 110-120℃, and the machine speed is 15-20 m / min; the stretching process uses 20-30 g / L of hydrophilic softener.

8. The finishing method for peach-skin velvet style fabric according to claim 1, characterized in that: The pre-shrinking process is carried out on a pre-shrinking machine. After the fabric is fed in, it is sprayed with moisture. After the rubber blanket is pre-shrinked, it is dried by the felt blanket and then cooled before being laid out. The temperature of the rubber blanket is 100-110℃ and the temperature of the felt blanket is 110-120℃.

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