Antibacterial anti-fuzzing fabric and processing method thereof

Abstract

The invention relates to an antibacterial and anti-fuzzing fabric and a processing method thereof, in particular to the technical field of fabric processing, and the processing method comprises the following steps: (1) immersing textile yarns into starch size for sizing and finishing; (2) performing primary desizing treatment on the textile yarns subjected to sizing treatment in the step (1), then washing with water, drying with hot air, and controlling the desizing rate of the primary desizing treatment to be 50-70%; (3) treating the textile yarns subjected to primary desizing treatment in the step (2) by adopting a composite biological polishing enzyme preparation; (4) performing secondary desizing treatment on the textile yarns subjected to the biological enzyme polishing treatment in the step (3), then washing with water, drying with hot air, and controlling the desizing rate of the secondary desizing treatment to be 90-100%; and (5) taking the textile yarns obtained in the step (4) as warps and wefts, and weaving to obtain the antibacterial and anti-fuzzing fabric. The fabric obtained by using the processing method provided by the invention has more excellent anti-pilling performance, and meanwhile, the antibacterial property is also improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric processing, and in particular relates to an antibacterial and anti-pilling fabric and a processing method thereof. Background Art

[0002] During use, fabrics are constantly subjected to friction from various external forces. Especially during washing, there is intense friction between fabrics. After multiple washes, the fabric surface will become fuzzy, and some will even form small balls on the surface of the fabric, thus affecting the comfort and aesthetics of the fabric during use.

[0003] In order to improve the performance and surface quality of fabrics, they are usually polished with bio-enzyme, i.e., a finishing process in which cellulase is used to remove the fuzz on the surface of cellulose products, so as to achieve a lasting surface finish, anti-pilling and softness. However, after cellulase treatment, the physical properties of the fabrics will change, such as transverse fiber fractures, resulting in strong damage to the fabrics. These conditions will affect the service life of the fabrics. In this regard, the present invention provides an antibacterial and anti-pilling fabric and a processing method thereof. Summary of the invention

[0004] The purpose of the present invention is to provide an antibacterial and anti-pilling fabric and a processing method thereof in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] As a first aspect of the present invention, the present invention provides a method for processing an antibacterial and anti-pilling fabric, comprising the following steps:

[0007] (1) immersing the textile yarn in a starch slurry for sizing and finishing;

[0008] (2) performing a desizing treatment on the textile yarn after sizing in step (1), and then washing with water and drying with hot air, wherein the desizing rate of the desizing treatment is controlled to be 50-70%;

[0009] (3) treating the textile yarn that has been desized once in step (2) with a composite bio-polishing enzyme preparation;

[0010] (4) performing a secondary desizing treatment on the textile yarn treated by the bio-enzyme polishing in step (3), and then washing and hot air drying the yarn, wherein the desizing rate of the secondary desizing treatment is controlled to be 90-100%;

[0011] (5) The antibacterial and anti-pilling fabric is obtained by weaving the textile yarn obtained in step (4) as warp and weft.

[0012] As a further optimization scheme of the present invention, in the step (1), the process parameters of sizing finishing are specifically: sizing temperature is 80-100°C, sizing vehicle speed is 300-450r / min, and the number average molecular weight of the starch slurry is 1000-3000.

[0013] As a further optimization scheme of the present invention, the process conditions of hot air drying in steps (2) and (4) are a wind speed of 3-5 m / s and a drying temperature of 30-60°C.

[0014] As a further optimization scheme of the present invention, in step (2) and step (4), the primary desizing treatment and the secondary desizing treatment both use amylase at a concentration of 5-10 g / L, and the primary desizing treatment and the secondary desizing treatment are both at 50-80°C.

[0015] As a further optimization scheme of the present invention, the textile yarn is polyester-cotton blended yarn or acrylic-cotton blended yarn.

[0016] As a further optimization scheme of the present invention, in the step (3), the composite biological polishing enzyme preparation includes, by mass percentage, 20-30% horseradish peroxidase, 20-30% acid cellulase, 1-5% sodium chloride, 1-5% penetrant, and the balance is deionized water, wherein the enzyme activity of the horseradish peroxidase is 5000-10000 IU / mL, and the enzyme activity of the acid cellulase is 10000-20000 IU / mL.

[0017] As a further optimization scheme of the present invention, in the step (3), the bath ratio of the textile yarn to the composite bio-polishing enzyme preparation is 1:20-30, the treatment temperature is 50-60°C, and the treatment time is 30-60min.

[0018] As a second aspect of the present invention, the present invention further provides an antibacterial and anti-pilling fabric obtained by using any of the above-mentioned processing methods for antibacterial and anti-pilling fabrics.

[0019] The beneficial effects of the present invention are:

[0020] (1) The present invention combines horseradish peroxidase and acid cellulase for bioenzyme polishing of textile yarns, and studies and explores the appropriate ratio of the two in combination, so that the prepared fabric can reduce its own strength loss and have better anti-pilling performance. At the same time, the antibacterial property of the fabric is also improved.

[0021] (2) The present invention further explores the processing method and finds that performing desizing treatment and controlling the desizing rate before the composite bio-polishing enzyme preparation treatment can ensure that the fabric obtains better anti-pilling performance while further reducing the strength loss of the fabric, thereby ensuring the service life of the fabric. DETAILED DESCRIPTION

[0022] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] 1. Materials and Methods

[0024] In the following examples, any method not specified may be carried out according to conventional methods, and the materials, reagents, etc. used may be obtained through commercial channels unless otherwise specified.

[0025] Among them, horseradish peroxidase, with an enzyme activity of 5000-10000 IU / mL, was purchased from Pandex (Shanghai) International Trade; acid cellulase, with an enzyme activity of 10000-20000 IU / mL, was purchased from Chongqing Tianrun Biological Products; the permeabilizing agent was fatty alcohol polyoxyethylene ether, purchased from Shandong Jubang Chemical; and catalase was purchased from Shandong Xinxiong Biotechnology. 2. Specific embodiments

[0027] Example 1

[0028] This embodiment provides a method for processing an antibacterial and anti-pilling fabric, comprising the following steps:

[0029] (1) immersing the polyester-cotton blended yarn in a starch slurry for sizing finishing, the sizing temperature is 80° C., the sizing speed is 300 r / min, and the number average molecular weight of the starch slurry is 3000;

[0030] (2) the polyester-cotton blended yarn subjected to the sizing treatment in step (1) is subjected to a desizing treatment at 50° C. using amylase at a concentration of 5 g / L, followed by water washing and hot air drying at a wind speed of 3 m / s and a drying temperature of 60° C., wherein the desizing rate of the desizing treatment is controlled to be 50%;

[0031] (3) treating the polyester-cotton blended yarn that has been desized once in step (2) with a composite bio-polishing enzyme preparation, with a bath ratio of 1:20, a treatment temperature of 50° C., and a treatment time of 60 min. The composite bio-polishing enzyme preparation comprises, by weight percentage, 20% horseradish peroxidase, 20% acid cellulase, 5% sodium chloride, 5% penetrant, and the balance being deionized water;

[0032] (4) performing a secondary desizing treatment on the textile yarn treated by the bio-enzyme polishing in step (3), and then washing it with water, drying it with hot air, using amylase with a concentration of 5 g / L, performing a secondary desizing treatment at 50° C., and then washing it with water, drying it with hot air at a wind speed of 3 m / s and a drying temperature of 60° C., and controlling the desizing rate of the secondary desizing treatment to be 100%;

[0033] (5) The antibacterial and anti-pilling fabric is obtained by weaving the textile yarn obtained in step (4) as warp and weft.

[0034] Example 2

[0035] This embodiment provides a method for processing an antibacterial and anti-pilling fabric, comprising the following steps:

[0036] (1) immersing the polyester-cotton blended yarn in a starch slurry for sizing finishing, the sizing temperature is 100° C., the sizing speed is 450 r / min, and the number average molecular weight of the starch slurry is 3000;

[0037] (2) the polyester-cotton blended yarn after sizing in step (1) is subjected to a desizing treatment at 80° C. using amylase at a concentration of 10 g / L, followed by water washing and hot air drying at a wind speed of 5 m / s and a drying temperature of 30° C., wherein the desizing rate of the desizing treatment is controlled to be 70%;

[0038] (3) treating the polyester-cotton blended yarn that has been desized once in step (2) with a composite bio-polishing enzyme preparation, with a bath ratio of 1:20, a treatment temperature of 50° C., and a treatment time of 60 min. The composite bio-polishing enzyme preparation comprises, by weight percentage, 30% horseradish peroxidase, 30% acid cellulase, 1% sodium chloride, and 1% penetrant, with the remainder being deionized water;

[0039] (4) performing a secondary desizing treatment on the textile yarn treated by the bio-enzyme polishing in step (3), and then washing it with water, drying it with hot air, using amylase with a concentration of 10 g / L, performing a secondary desizing treatment at 50° C., and then washing it with water, drying it with hot air at a wind speed of 5 m / s and a drying temperature of 30° C., and controlling the desizing rate of the secondary desizing treatment to be 100%;

[0040] (5) The antibacterial and anti-pilling fabric is obtained by weaving the textile yarn obtained in step (4) as warp and weft.

[0041] Example 2

[0042] This embodiment provides a method for processing an antibacterial and anti-pilling fabric, comprising the following steps:

[0043] (1) immersing the polyester-cotton blended yarn in a starch slurry for sizing finishing, the sizing temperature is 80° C., the sizing speed is 400 / min, and the number average molecular weight of the starch slurry is 3000;

[0044] (2) the polyester-cotton blended yarn after sizing in step (1) is subjected to a desizing treatment at 80° C. using amylase at a concentration of 5 g / L, followed by water washing and hot air drying at a wind speed of 5 m / s and a drying temperature of 30° C., wherein the desizing rate of the desizing treatment is controlled to be 60%;

[0045] (3) treating the polyester-cotton blended yarn that has been desized once in step (2) with a composite bio-polishing enzyme preparation, with a bath ratio of 1:30, a treatment temperature of 60° C., and a treatment time of 30 min. The composite bio-polishing enzyme preparation comprises, by weight percentage, 20% horseradish peroxidase, 30% acid cellulase, 5% sodium chloride, 5% penetrant, and the balance being deionized water;

[0046] (4) performing a secondary desizing treatment on the textile yarn treated by the bio-enzyme polishing in step (3), and then washing it with water, drying it with hot air, using amylase with a concentration of 10 g / L, performing a secondary desizing treatment at 80° C., and then washing it with water, drying it with hot air at a wind speed of 5 m / s and a drying temperature of 30° C., and controlling the desizing rate of the secondary desizing treatment to be 90%;

[0047] (5) The antibacterial and anti-pilling fabric is obtained by weaving the textile yarn obtained in step (4) as warp and weft.

[0048] Verification test

[0049] 1. In order to explore the effect of the composition of the composite bio-polishing enzyme preparation on the performance of the fabric, the composition of the composite bio-polishing enzyme preparation was adjusted according to Table 1.

[0050] Table 1. Component formulation design of composite bio-polishing enzyme preparation

[0051]

[0052]

[0053] The enzyme preparations AF given in Table 1 were sequentially applied to the processing method disclosed in Example 1 to prepare fabrics, which were recorded as fabric AF. In addition, polyester-cotton blended yarns that had not been treated in any way were used as warp and weft threads, and the fabrics obtained by weaving were used as blank control groups. Fabrics AF and the blank control group were prepared using the same weaving process.

[0054] First, test the anti-pilling performance of the fabric. The specific method is:

[0055] For fabrics AF, 5 circular specimens with a diameter of 12 cm were cut respectively, and the pilling performance was tested on a YG501 pilling tester according to GB / T 4802.1-1997 "Circular Locus Method for Pilling Test of Textile Fabrics". Evaluation grading: Grade 5 - no pilling; Grade 4 - a small amount of pilling; Grade 3 - a moderate amount of pilling; Grade 2 - severe pilling.

[0056] The results are shown in Table 2.

[0057] Table 2. Statistical table of anti-pilling performance test results

[0058]

[0059] As can be seen from the table, the specific composition of the composite bio-polishing enzyme preparation has an impact on the anti-pilling performance of the fabric. From the comparison between fabric A and fabric F, it can be seen that horseradish peroxidase has a better polishing effect on the surface of textile yarn than the commonly used catalase, making the surface of the prepared fabric smoother and smoother, and improving the anti-pilling performance of the fabric itself. In addition, from the comparison between fabric AC and fabric DE, it can be seen that the effect of horseradish peroxidase combined with acid cellulase is better than using either one alone.

[0060] Then, the antibacterial properties of fabric AF were tested.

[0061] According to GB / T 20944.2-2007 "Evaluation of Antimicrobial Properties of Textiles Part 2: Absorption Method", the test bacteria are Escherichia coli 8099 (Gram-negative bacteria) and Staphylococcus aureus ATCC6538. According to the standard, each fabric sample was cut into 20mm×20mm size and antibacterial test was carried out after 50 washes. The results are shown in Table 3.

[0062] Table 3. Statistical table of antibacterial performance test results

[0063]

[0064] It can be seen from Table 3 that the composition of the composite bio-polishing enzyme preparation has an impact on the antibacterial properties of the fabric. The use of horseradish peroxidase in the composite bio-polishing enzyme preparation can promote the improvement of the antibacterial properties of the fabric, and the antibacterial properties of the fabric are further increased with the increase in the amount used. And by comparing fabric A with fabric F, it can be seen that horseradish peroxidase has certain advantages in promoting the improvement of the antibacterial properties of fabrics compared to the commonly used catalase on the market.

[0065] Finally, the fabric was tested for bursting strength, specifically referring to GB 3923.1-1997 "Textile fabrics - Determination of tensile strength and elongation at break - Strip method" on a HD026N electronic fabric strength tester, and was equilibrated in a constant temperature and humidity chamber for 24 hours before testing.

[0066] The results are shown in Table 4.

[0067] Table 4. Statistics of bursting strength test results

[0068]

[0069] As can be seen from the table, as the amount of horseradish peroxidase used increases, the damage to the fabric strength increases. When the amount of horseradish peroxidase used in the composite bio-polishing enzyme preparation is 20%, the damage to the fabric strength is small. In addition, by comparing fabrics A, C and D, it can be seen that the increase in the amount of acid cellulase used will also affect the fabric strength. Therefore, from the perspective of protecting the mechanical properties of the fabric itself, when the amount of horseradish peroxidase and acid cellulase used in the composite bio-polishing enzyme preparation is 20%, the effect is best.

[0070] 2. In order to explore the influence of processing methods on fabric properties, the following comparative examples are set:

[0071] Comparative Example 1

[0072] The present comparative example provides a method for processing an antibacterial and anti-pilling fabric, which differs from Example 1 only in that: in step (2), the polyester-cotton blended yarn after sizing in step (1) is subjected to a desizing treatment at 50°C using amylase at a concentration of 5 g / L, and then washed with water, and dried with hot air at a wind speed of 3 m / s and a drying temperature of 60°C, and the desizing rate of the desizing treatment is controlled to be 100%; and step (4) is not performed.

[0073] Comparative Example 2

[0074] This comparative example provides a method for processing antibacterial and anti-pilling fabrics, which is different from Example 1 only in that step (2) is not performed.

[0075] Comparative Example 3

[0076] The present comparative example provides a method for processing an antibacterial and anti-pilling fabric, which differs from Example 1 only in that: in step (2), the polyester-cotton blended yarn after sizing in step (1) is subjected to a desizing treatment at 50°C using amylase at a concentration of 5g / L, and then washed with water, and dried with hot air at a wind speed of 3m / s and a drying temperature of 60°C, and the desizing rate of the desizing treatment is controlled to be 60%.

[0077] Comparative Example 4

[0078] The present comparative example provides a method for processing an antibacterial and anti-pilling fabric, which differs from Example 1 only in that: in step (2), the polyester-cotton blended yarn after sizing in step (1) is subjected to a desizing treatment at 50°C using amylase at a concentration of 5g / L, and then washed with water, and dried with hot air at a wind speed of 3m / s and a drying temperature of 60°C, and the desizing rate of the desizing treatment is controlled to be 70%.

[0079] The fabrics prepared in Comparative Examples 1-4 are recorded as fabrics ad, and the anti-pilling performance and bursting strength performance of fabrics ad are tested.

[0080] The results are shown in Table 5.

[0081] Table 5. Statistical table of test results of anti-pilling performance and bursting strength performance

[0082]

[0083]

[0084] As can be seen from the table, before the textile yarn is treated with bio-enzyme polishing by composite bio-polishing enzyme preparation, a desizing treatment is performed on the textile yarn, which can ensure the effect of bio-enzyme polishing treatment and improve the anti-pilling performance of the fabric. However, it can be seen that the desizing rate in the desizing process will affect the strength of the fabric, and the influence is positively correlated with the desizing rate. It is speculated that after a desizing treatment, the starch slurry retained in the yarn will protect the main body of the yarn, thus reducing the strong damage to the fabric caused by the bio-enzyme polishing process, and the surface of the yarn will obtain a smoother surface through bio-enzyme polishing treatment, which can improve the anti-pilling performance of the final fabric.

[0085] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for processing antibacterial and anti-pilling fabrics, characterized in that: The following steps are involved: (1) immersing the textile yarn in a starch slurry for sizing and finishing; (2) performing a desizing treatment on the textile yarn after sizing in step (1), and then washing with water and drying with hot air, wherein the desizing rate of the desizing treatment is controlled to be 50-70%; (3) treating the textile yarn that has been subjected to the one-time desizing treatment in step (2) with a composite bio-polishing enzyme preparation; (4) performing a secondary desizing treatment on the textile yarn treated by the bio-enzyme polishing in step (3), and then washing it with water and drying it with hot air, wherein the desizing rate of the secondary desizing treatment is controlled to be 90-100%; (5) The antibacterial and anti-pilling fabric is obtained by weaving the textile yarn obtained in step (4) as warp and weft.

2. The method for processing an antibacterial and anti-pilling fabric according to claim 1, characterized in that: In the step (1), the process parameters of sizing finishing are specifically: sizing temperature is 80-100°C, sizing speed is 300-450r / min, and the number average molecular weight of the starch slurry is 1000-3000.

3. The method for processing antibacterial and anti-pilling fabric according to claim 1, characterized in that: The process conditions for hot air drying in steps (2) and (4) are a wind speed of 3-5 m / s and a drying temperature of 30-60°C.

4. The method for processing antibacterial and anti-pilling fabric according to claim 1, characterized in that: In the step (2) and the step (4), the first desizing treatment and the second desizing treatment both use amylase at a concentration of 5-10 g / L, and the first desizing treatment and the second desizing treatment are both at 50-80°C.

5. The method for processing antibacterial and anti-pilling fabric according to claim 1, characterized in that: The textile yarn is polyester-cotton blended yarn or acrylic-cotton blended yarn.

6. The method for processing antibacterial and anti-pilling fabric according to claim 1, characterized in that: In the step (3), the composite bio-polishing enzyme preparation comprises, by weight percentage, 20-30% horseradish peroxidase, 20-30% acid cellulase, 1-5% sodium chloride, 1-5% penetrant, and the balance is deionized water, wherein the enzyme activity of the horseradish peroxidase is 5000-10000 IU / mL, and the enzyme activity of the acid cellulase is 10000-20000 IU / mL.

7. The method for processing antibacterial and anti-pilling fabric according to claim 1, characterized in that: In the step (3), the bath ratio of the textile yarn to the composite bio-polishing enzyme preparation is 1:20-30, the treatment temperature is 50-60°C, and the treatment time is 30-60 minutes.

8. An antibacterial and anti-pilling fabric obtained by using the processing method of the antibacterial and anti-pilling fabric as claimed in any one of claims 1 to 7.

Images