Production process of antibacterial fabric

Abstract

The invention relates to the technical field of antibacterial fabrics, and discloses a production process of an antibacterial fabric, which comprises the following steps: 1) opening picking: carrying out 2-4 opening picking and cotton carding procedures on polyester-cotton blended fibers and bamboo fibers; (2) sizing, namely waxing after sizing on the basis of strictly executing a sizing process; (3) weaving: adopting a 28-ring rubber temple device in production, and additionally arranging a bottom lamp below a cloth cover of a weaving machine; (4) dyeing and finishing, wherein the production materials are subjected to cloth turning and end sewing, deoiling and refining, pre-shaping, alkali deweighting treatment, dyeing and soft shaping. According to the production process of the antibacterial fabric, the polyester-cotton blended fibers and the nandina fibers are uniformly mixed according to the proportion of 85% to 15%, the processed fabric can have good antibacterial property, the knitted fabric product is rich in color, stuffy and wet feelings are eliminated, the wearing comfort is high, and in addition, the antibacterial fabric is soft in hand feeling, comfortable to wear and good in antibacterial effect. And the fabric can become an ideal antibacterial fabric.

Description

Technical Field

[0001] The invention relates to the technical field of antibacterial fabrics, in particular to a production process of antibacterial fabrics. Background Art

[0002] With the improvement of people's living standards, people are not only satisfied with the basic requirements of clothing such as beauty, comfort and warmth, but also pursue antibacterial properties of clothing. Therefore, in the textile industry, antibacterial textile fabrics are increasingly widely used to make clothing.

[0003] The antibacterial textile fabrics in the prior art have the defect of unsatisfactory antibacterial performance. Moreover, the production process of the existing antibacterial textile fabrics has the defects of complex production process and high production cost. At the same time, the antibacterial treatment of fabrics in the prior art is to add or impregnate antibacterial agents into the fabrics. This method still has the disadvantages of not being environmentally friendly and healthy and having a short antibacterial effect. Therefore, a production process of antibacterial fabrics is proposed to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a production process for antibacterial fabrics, which has the advantages of good antibacterial effect, etc., and solves the problem that the antibacterial treatment of fabrics in the prior art is to add or impregnate antibacterial agents into the fabrics. This method has the problems of being not environmentally friendly and healthy and having a short antibacterial effect.

[0005] To achieve the above object, the present invention provides the following technical solution: a production process of antibacterial fabric, comprising the following steps: 1) Opening and cleaning the cotton: the polyester-cotton blended fiber (60% cotton and 40% polyester) and the bamboo fiber are evenly mixed in a ratio of 85% and 15%, and then go through 2-4 opening and cleaning and carding processes; 2) Sizing, choose the appropriate sizing material. During the sizing process, the sizing tank temperature should be controlled at 90-95℃ to ensure that the viscosity of the sizing tank slurry is maintained at 8s. The sizing yarn enhancement rate can reach 27.8%, the number of broken warps per loom per hour is only 0.55, and the loom efficiency reaches 87%. On the basis of strictly implementing the sizing process, waxing is adopted after sizing, and the waxing amount is 0.4%; 3) Weaving, a 28-ring rubber side support device is used in production, and a bottom light needs to be installed under the loom cloth surface; 4) Dyeing and finishing, turning over the seams of the production materials, degreasing and scouring, pre-forming, alkali reduction treatment, dyeing and softening and shaping; 5) Inspection and packaging: during production, the product needs to be in the form of rolls, which can be completed by a weaving and rolling machine.

[0006] Furthermore, the selection of the sizing agent in step 2) should adopt the process principles of high pressure, low viscosity and medium concentration, and should consider increasing the strength of the warp yarn and fitting the hairiness, while also considering that the viscosity of the sizing agent should not be too large to avoid secondary hairiness.

[0007] Further, the detailed process of dyeing and finishing in step 5) is: 1) When turning over the seam head and unwinding the cloth, pay attention to check the smoothness, wrinkles and oil stains of the cloth surface, whether the width of the grey cloth is uniform, whether there are warp and weft defects, and pay attention to the alignment and flatness of the seam head; 2) Degreasing and refining can remove impurities such as oil and sizing agents left on the yarn during weaving, so that the stress inside the fabric can be fully released in a relaxed state; 3) Pre-shaping, in order to improve the size and shape stability of the fabric, reduce wrinkles and wrinkle marks, make the fabric structure clearer and denser, and take into account the particularity of the fabric yarn shape structure to achieve the ideal effect; 4) Alkali reduction: In order to improve the wearing performance of moisture-wicking fibers and improve the hygroscopicity, air permeability and drape of knitted fabrics, alkali reduction treatment is required to make the fabric soft, smooth and elastic. After alkali reduction treatment, it is necessary to fully wash and neutralize to reduce alkali spots and avoid color defects such as color spots during dyeing. 5) Dyeing: The dyeing temperature of the knitted fabric is 115-120℃, which is 10-20℃ lower than that of ordinary polyester to ensure the functionality of the fabric; 6) Softening and shaping: In order to improve the stability of product size, give the fabric a fuller, smoother, softer feel and good drape, and increase the added value of the product, appropriate softeners must be used for processing after dyeing.

[0008] Furthermore, the scouring process conditions are as follows: NaOH 5-10 g / L, degreasing scouring agent 2-5 g / L, temperature 100°C, time 20-30 min, the pre-setting treatment should be preferably 180-190°C, time 30 s, and vehicle speed 40-45 m / min.

[0009] Furthermore, the process conditions of alkali weight reduction are: NaOH 25-75g / L, weight reduction accelerator 0.5-1.5g / L, temperature 95°C, time 15-30min, and the process conditions of soft shaping are: fluffy softener 10-20g / L, hydrophilic softener 10-20g / L, shaping temperature 190-200°C, time 30-45s, and vehicle speed 30-40m / min. Beneficial Effects

[0010] Compared with the prior art, the present invention provides a production process for antibacterial fabrics, which has the following beneficial effects: The production process of the antibacterial fabric comprises the following steps: uniformly mixing polyester-cotton blended fibers (60% cotton and 40% polyester) and bamboo fibers in a ratio of 85% and 15%, and the processed fabric has good antibacterial properties. Meanwhile, after dyeing and finishing, the knitted fabric product has rich colors and good drape, eliminates the feeling of stuffiness and dampness, and is comfortable to wear. In addition, the antibacterial fabric produced by the present application has a soft hand feel and can become an ideal antibacterial fabric. DETAILED DESCRIPTION

[0011] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] Embodiment 1: A production process of an antibacterial fabric comprises the following steps: 1) Opening and cleaning the cotton: the polyester-cotton blended fiber (60% cotton and 40% polyester) and the bamboo fiber are evenly mixed in a ratio of 85% and 15%, and then go through two opening and cleaning and carding processes; 2) Sizing: Choose the right size. During the sizing process, the temperature of the sizing tank should be controlled at 90°C to ensure that the viscosity of the sizing tank slurry is maintained at 8s. The sizing enhancement rate can reach 27.8%, the number of broken warps per loom per hour is only 0.55, and the loom efficiency reaches 87%. On the basis of strictly implementing the sizing process, waxing is used after sizing, and the waxing amount is 0.4% to make the yarn surface smoother; 3) Weaving: A 28-ring rubber temple device is used in production. This temple accessory has no needle puncture, so it causes less damage to the fabric. In addition, a bottom light needs to be installed under the fabric of the loom to facilitate operators to check fabric defects in a timely manner. 4) Dyeing and finishing, turning over the seams of the production materials, degreasing and scouring, pre-forming, alkali reduction treatment, dyeing and softening and shaping; 5) Inspection and packaging: As bamboo fiber is brittle and not suitable for folding and packaging, otherwise creases will appear on the surface of the fabric. Therefore, it needs to be packaged in rolls during production, which can be completed by a weaving and rolling machine.

[0013] It should be noted that the selection of the slurry in step 2) needs to adopt the process principles of high pressure, low viscosity and medium concentration, and it is necessary to consider increasing the strength of the warp yarn and fitting the hairiness, and it is also necessary to consider that the viscosity of the slurry should not be too large to avoid secondary hairiness. Among them, the slurry formula is: 25kg starch GR-1297, 50kg phosphate starch A-696, 37.5kg modified starch CD-DF330, 3kg wax flakes, 3kg antistatic agent, 10kg LE glue, prepared into 740L slurry, which can effectively ensure the smoothness of the yarn and reduce the friction of the yarn.

[0014] At the same time, the detailed process of dyeing and finishing in step 5) is: 1) When turning over the seam head and unwinding the cloth, pay attention to check the smoothness, wrinkles and oil stains of the cloth surface, whether the width of the grey cloth is uniform, whether there are warp and weft defects, and pay attention to the alignment and flatness of the seam head; 2) Degreasing and scouring can remove impurities such as oil and sizing agents left on the yarn during weaving, so that the stress inside the fabric can be fully released in a relaxed state. The scouring process conditions are: NaOH 5g / L, degreasing and scouring agent 2g / L, temperature 100℃, time 20min; 3) Pre-forming: In order to improve the size and shape stability of the fabric, reduce wrinkles and wrinkle marks, make the fabric surface structure clearer and denser, and take into account the particularity of the fabric yarn shape structure to achieve the ideal effect, the pre-forming treatment should be 180℃, 30s, and 40m / min; 4) Alkali reduction: In order to improve the wearing performance of moisture-wicking fibers and improve the hygroscopicity, air permeability and drape of knitted fabrics, the alkali reduction process should be used to make the fabric soft, smooth and elastic. During the alkali reduction process, the mass concentration of sodium hydroxide, the mass concentration of the reduction accelerator, the reduction temperature and time and other process factors should be controlled to ensure that the fiber performance is not lost and the fabric strength is not significantly damaged. After the alkali reduction treatment, sufficient water washing and neutralization should be carried out to reduce the alkali spot phenomenon to avoid color defects such as color flowers during dyeing. The process conditions of alkali reduction are: NaOH 25g / L, reduction accelerator 0.5g / L, temperature 95℃, time 15min; 5) Dyeing: The dyeing temperature of the knitted fabric is 115°C, which is 10°C lower than that of ordinary polyester to ensure the functionality of the fabric; 6) Softening and shaping: In order to improve the dimensional stability of the product, give the fabric a fuller, smoother, softer feel and good drape, and increase the added value of the product, appropriate softeners are required for processing after dyeing. The process conditions for softening and shaping are: fluffy softener 10g / L, hydrophilic softener 10g / L, shaping temperature 190℃, time 30s, and vehicle speed 30m / min.

[0015] Embodiment 2: A production process of an antibacterial fabric comprises the following steps: 1) Opening and cleaning the cotton: the polyester-cotton blended fiber (60% cotton and 40% polyester) and the bamboo fiber are evenly mixed in a ratio of 85% and 15%, and then go through 4 opening and cleaning and carding processes; 2) Sizing: Choose the right sizing agent. During the sizing process, the sizing tank temperature should be controlled at 95°C to ensure that the viscosity of the sizing tank slurry is maintained at 8s. The sizing enhancement rate can reach 27.8%, the number of broken warps per loom per hour is only 0.55, and the loom efficiency reaches 87%. On the basis of strictly implementing the sizing process, waxing is used after sizing, and the waxing amount is 0.4% to make the yarn surface smoother; 3) Weaving: A 28-ring rubber temple device is used in production. This temple accessory has no needle puncture, so it causes less damage to the fabric. In addition, a bottom light needs to be installed under the fabric of the loom to facilitate operators to check fabric defects in a timely manner. 4) Dyeing and finishing, turning over the seams of the production materials, degreasing and scouring, pre-forming, alkali reduction treatment, dyeing and softening and shaping; 5) Inspection and packaging: Bamboo fiber is brittle and not suitable for folding and packaging, otherwise creases will appear on the surface of the fabric. It needs to be packaged in rolls during production, which can be completed by a weaving and rolling machine.

[0016] It should be noted that the selection of the slurry in step 2) needs to adopt the process principles of high pressure, low viscosity and medium concentration, and it is necessary to consider increasing the strength of the warp yarn and fitting the hairiness, and it is also necessary to consider that the viscosity of the slurry should not be too large to avoid secondary hairiness. Among them, the slurry formula is: 25kg starch GR-1297, 50kg phosphate starch A-696, 37.5kg modified starch CD-DF330, 3kg wax flakes, 3kg antistatic agent, 10kg LE glue, prepared into 740L slurry, which can effectively ensure the smoothness of the yarn and reduce the friction of the yarn.

[0017] At the same time, the detailed process of dyeing and finishing in step 5) is: 1) When turning over the seam head and unwinding the cloth, pay attention to check the smoothness, wrinkles and oil stains of the cloth surface, whether the width of the grey cloth is uniform, whether there are warp and weft defects, and pay attention to the alignment and flatness of the seam head; 2) Degreasing and scouring can remove impurities such as oil and sizing agents left on the yarn during weaving, so that the stress inside the fabric can be fully released in a relaxed state. The scouring process conditions are: NaOH 10g / L, degreasing and scouring agent 5g / L, temperature 100℃, time 30min; 3) Pre-forming: In order to improve the size and shape stability of the fabric, reduce wrinkles and wrinkle marks, make the fabric surface structure clearer and denser, and take into account the particularity of the fabric yarn shape structure to achieve the ideal effect, the pre-forming treatment should be 190℃, 30s, and 45m / min; 4) Alkali reduction: In order to improve the wearing performance of moisture-wicking fibers and improve the hygroscopicity, air permeability and drape of knitted fabrics, alkali reduction treatment is required to make the fabric soft, smooth and elastic. During the alkali reduction process, the mass concentration of sodium hydroxide, the mass concentration of the reduction accelerator, the reduction temperature and time and other process factors should be controlled to ensure that the fiber performance is not lost and the fabric strength is not significantly damaged. After the alkali reduction treatment, sufficient water washing and neutralization should be carried out to reduce the alkali spot phenomenon to avoid color defects such as color flowers during dyeing. The process conditions of alkali reduction are: NaOH 75g / L, reduction accelerator 1.5g / L, temperature 95℃, time 30min; 5) Dyeing: The dyeing temperature of the knitted fabric is 120°C, which is 20°C lower than that of ordinary polyester to ensure the functionality of the fabric; 6) Softening and shaping: In order to improve the dimensional stability of the product, give the fabric a fuller, smoother, softer feel and good drape, and increase the added value of the product, appropriate softeners are required for processing after dyeing. The process conditions for softening and shaping are: fluffy softener 20g / L, hydrophilic softener 20g / L, shaping temperature 200℃, time 45s, and vehicle speed 40m / min.

[0018] Embodiment 3: A production process of an antibacterial fabric, comprising the following steps: 1) Opening and cleaning the cotton: the polyester-cotton blended fiber (60% cotton and 40% polyester) and the bamboo fiber are evenly mixed in a ratio of 85% and 15%, and then go through three opening and cleaning and carding processes; 2) Sizing: Choose the right size. During the sizing process, the temperature of the sizing tank should be controlled at 93°C to ensure that the viscosity of the sizing tank slurry is maintained at 8s. The sizing enhancement rate can reach 27.8%, the number of broken warps per loom per hour is only 0.55, and the loom efficiency reaches 87%. On the basis of strictly implementing the sizing process, waxing is used after sizing, and the waxing amount is 0.4% to make the yarn surface smoother; 3) Weaving: A 28-ring rubber temple device is used in production. This temple accessory has no needle puncture, so it causes less damage to the fabric. In addition, a bottom light needs to be installed under the fabric of the loom to facilitate operators to check fabric defects in a timely manner. 4) Dyeing and finishing, turning over the seams of the production materials, degreasing and scouring, pre-forming, alkali reduction treatment, dyeing and softening and shaping; 5) Inspection and packaging: Bamboo fiber is brittle and not suitable for folding and packaging, otherwise creases will appear on the surface of the fabric. It needs to be packaged in rolls during production, which can be completed by a weaving and rolling machine.

[0019] It should be noted that the selection of the slurry in step 2) needs to adopt the process principles of high pressure, low viscosity and medium concentration, and it is necessary to consider increasing the strength of the warp yarn and fitting the hairiness, and it is also necessary to consider that the viscosity of the slurry should not be too large to avoid secondary hairiness. Among them, the slurry formula is: 25kg starch GR-1297, 50kg phosphate starch A-696, 37.5kg modified starch CD-DF330, 3kg wax flakes, 3kg antistatic agent, 10kg LE glue, prepared into 740L slurry, which can effectively ensure the smoothness of the yarn and reduce the friction of the yarn.

[0020] At the same time, the detailed process of dyeing and finishing in step 5) is: 1) When turning over the seam head and unwinding the cloth, pay attention to check the smoothness, wrinkles and oil stains of the cloth surface, whether the width of the grey cloth is uniform, whether there are warp and weft defects, and pay attention to the alignment and flatness of the seam head; 2) Degreasing and scouring can remove impurities such as oil and sizing agents left on the yarn during weaving, so that the stress inside the fabric can be fully released in a relaxed state. The scouring process conditions are: NaOH 7g / L, degreasing and scouring agent 3g / L, temperature 100℃, time 25min; 3) Pre-forming: In order to improve the size and shape stability of the fabric, reduce wrinkles and wrinkle marks, make the fabric surface structure clearer and denser, and take into account the particularity of the fabric yarn shape structure to achieve the ideal effect, the pre-forming treatment should be 185℃, 30s, and 43m / min; 4) Alkali reduction: In order to improve the wearing performance of moisture-wicking fibers and improve the hygroscopicity, air permeability and drape of knitted fabrics, the alkali reduction process should be used to make the fabric soft, smooth and elastic. During the alkali reduction process, the mass concentration of sodium hydroxide, the mass concentration of the reduction accelerator, the reduction temperature and time and other process factors should be controlled to ensure that the fiber performance is not lost and the fabric strength is not significantly damaged. After the alkali reduction treatment, sufficient water washing and neutralization should be carried out to reduce the alkali spot phenomenon to avoid color defects such as color flowers during dyeing. The process conditions of alkali reduction are: NaOH 50g / L, reduction accelerator 1g / L, temperature 95℃, time 23min; 5) Dyeing: The dyeing temperature of the knitted fabric is 117°C, which is 15°C lower than that of ordinary polyester to ensure the functionality of the fabric; 6) Softening and shaping: In order to improve the dimensional stability of the product, give the fabric a fuller, smoother, softer feel and good drape, and increase the added value of the product, appropriate softeners should be used for processing after dyeing. The process conditions for softening and shaping are: fluffy softener 15g / L, hydrophilic softener 15g / L, shaping temperature 195℃, time 38s, and vehicle speed 35m / min.

[0021] The beneficial effects of the present invention are: The production process of the antibacterial fabric comprises the following steps: uniformly mixing polyester-cotton blended fibers (60% cotton and 40% polyester) and bamboo fibers in a ratio of 85% and 15%, and the processed fabric has good antibacterial properties. Meanwhile, after dyeing and finishing, the knitted fabric product has rich colors and good drape, eliminates the feeling of stuffiness and dampness, and is comfortable to wear. In addition, the antibacterial fabric produced by the present application has a soft hand feel and can become an ideal antibacterial fabric.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production process for antibacterial fabrics, characterized in that: The following steps are involved: 1) Opening and cleaning the cotton: the polyester-cotton blended fiber (60% cotton and 40% polyester) and the bamboo fiber are evenly mixed in a ratio of 85% and 15%, and then go through 2-4 opening and cleaning and carding processes; 2) Sizing, choose the appropriate sizing material. During the sizing process, the sizing tank temperature should be controlled at 90-95℃ to ensure that the viscosity of the sizing tank slurry is maintained at 8s. The sizing yarn enhancement rate can reach 27.8%, the number of broken warps per loom per hour is only 0.55, and the loom efficiency reaches 87%. On the basis of strictly implementing the sizing process, waxing is adopted after sizing, and the waxing amount is 0.4%; 3) Weaving, a 28-ring rubber side support device is used in production, and a bottom light needs to be installed under the loom cloth surface; 4) Dyeing and finishing, turning over the seams of the production materials, degreasing and scouring, pre-forming, alkali reduction treatment, dyeing and softening and shaping; 5) Inspection and packaging: during production, the product needs to be in the form of rolls, which can be completed by a weaving and rolling machine.

2. The production process of an antibacterial fabric according to claim 1, characterized in that: In the step 2), the selection of the sizing agent should follow the process principles of high pressure, low viscosity and medium concentration, and consideration should be given to increasing the strength of the warp yarn and fitting the hairiness, while also considering that the viscosity of the sizing agent should not be too large to avoid secondary hairiness.

3. The production process of an antibacterial fabric according to claim 1, characterized in that: The detailed process of dyeing and finishing in step 5) is as follows: 1) When turning over the seam head and unwinding the cloth, pay attention to check the smoothness, wrinkles and oil stains of the cloth surface, whether the width of the grey cloth is uniform, whether there are warp and weft defects, and pay attention to the alignment and flatness of the seam head; 2) Degreasing and refining can remove impurities such as oil and sizing agents left on the yarn during weaving, so that the stress inside the fabric can be fully released in a relaxed state; 3) Pre-shaping, in order to improve the size and shape stability of the fabric, reduce wrinkles and wrinkle marks, make the fabric structure clearer and denser, and take into account the particularity of the fabric yarn shape structure to achieve the ideal effect; 4) Alkali reduction: In order to improve the wearing performance of moisture-wicking fibers and improve the hygroscopicity, air permeability and drape of knitted fabrics, alkali reduction treatment is required to make the fabric soft, smooth and elastic. After alkali reduction treatment, it is necessary to fully wash and neutralize to reduce alkali spots and avoid color defects such as color spots during dyeing. 5) Dyeing: The dyeing temperature of the knitted fabric is 115-120℃, which is 10-20℃ lower than that of ordinary polyester to ensure the functionality of the fabric; 6) Softening and shaping: In order to improve the stability of product size, give the fabric a fuller, smoother, softer feel and good drape, and increase the added value of the product, appropriate softeners must be used for processing after dyeing.

4. The production process of an antibacterial fabric according to claim 3, characterized in that: The scouring process conditions are as follows: NaOH 5-10 g / L, degreasing scouring agent 2-5 g / L, temperature 100°C, time 20-30 min, the pre-setting treatment should be preferably 180"-190°C, time 30 s, vehicle speed 40-45 m / min.

5. The production process of an antibacterial fabric according to claim 3, characterized in that: The process conditions of alkali weight reduction are: NaOH 25-75g / L, weight reduction accelerator 0.5-1.5g / L, temperature 95°C, time 15-30min, and the process conditions of softening and shaping are: fluffy softener 10-20g / L, hydrophilic softener 10-20g / L, shaping temperature 190-200°C, time 30-45s, and vehicle speed 30-40m / min.