Process for producing mint fiber antibacterial knitted underwear fabric

Abstract

The invention discloses a process for producing a mint fiber antibacterial knitted underwear fabric. The invention uses modal and mint fiber to perform weft plain knitting to obtain a single-sided weft plain knitted fabric; then, after pretreatment, dyeing, soaping, shaping, and rolling, the mint fiber antibacterial knitted underwear fabric is obtained; the sulfhydryl group and isopentenyl flavonoid provided by the ficin of the invention undergo an addition reaction under the catalytic action of an amino group, open the C=C bond of isopentenyl flavonoid, and react with the sulfhydryl group in the ficin to form a sulfhydryl-alkane bond; through the above reaction, the surface of the fabric is modified with a complex of protein and flavonoid, which not only changes the surface properties of the fabric, but also enhances its antibacterial performance; the mint fiber antibacterial knitted underwear fabric prepared by the invention has a high tensile elastic recovery rate, a low water absorption rate, and a high evaporation rate, so that it has better comfort and durability; at the same time, it also has an excellent antibacterial rate.

Description

Technical Field

[0001] The invention relates to the field of underwear fabrics, in particular to a process for producing mint fiber antibacterial knitted underwear fabrics. Background Art

[0002] With the development of social economy, my country has put forward new requirements for the development of textile industry. High-performance fiber, intelligent products and green production have become important guidelines for building a textile power. Consumers have put forward higher requirements for the comfort, functionality and environmental protection of clothing. Mint fiber is an antibacterial functional viscose fiber made of natural mint plant as raw material and blended with viscose spinning solution. It is a green fiber that conforms to the trend of green environmental protection.

[0003] Chinese patent CN114032637B: Provides a comfortable, breathable, cool, quick-drying, antibacterial knitted underwear fabric, which is a weft knitted fabric, which is sequentially connected with a first textile layer, a second textile layer, a supporting textile thread, a second textile layer, a connecting textile thread and a third textile layer, wherein the first textile layer, the second textile layer and the supporting textile thread are all made of long-lasting cool nylon fiber, which has outstanding fatigue resistance, is not easy to deform, has good waterproof performance, is moisture-proof, and is long-lasting cool; the third textile layer and the connecting textile thread are made of long-lasting deodorizing spandex, making the fabric naturally skin-friendly, anti-pilling, light and breathable, warm overall, and feels wide, suitable for and other functions. In the preparation process, an antibacterial agent is added to give it good antibacterial properties.

[0004] Chinese patent CN102845842A: discloses a multi-functional underwear fabric, which consists of a surface layer and an inner layer. The surface layer fabric is a multi-component fiber blended fabric, which is a blend of nano-silver polyester, modal fiber and spandex. The inner layer fabric uses milk protein fiber, and the surface layer and the inner layer of the fabric are woven using a water jet loom.

[0005] Chinese patent CN102429326A: discloses an elastic healthy underwear fabric, including: the fabric is interwoven by warp yarn and weft yarn, the warp yarn includes bamboo charcoal fiber, polyester fiber, spandex filament, the spandex filament is a spandex composite yarn composed of 3 single yarns, and the ratio of the bamboo charcoal fiber, polyester fiber, and spandex filament is 15-35:25-55:30-40.

[0006] However, the underwear fabrics prepared by the patent and the prior art have the disadvantages of low tensile elastic recovery rate, poor moisture absorption and perspiration discharge, poor antibacterial property, and unsatisfactory wearing comfort.

[0007] To this end, the method proposes a process for producing mint fiber antibacterial knitted underwear fabrics. Summary of the invention

[0008] The technical task of the present invention is to address the above shortcomings and provide a process for producing mint fiber antibacterial knitted underwear fabric. Modal and mint fiber are knitted by weft plain knitting to obtain single-sided weft plain knitted fabric; and then the mint fiber antibacterial knitted underwear fabric is obtained through pretreatment, dyeing, soaping, shaping and curling.

[0009] The technical solution of the present invention is achieved in this way:

[0010] A process for producing mint fiber antibacterial knitted underwear fabric, the operating steps of which are as follows:

[0011] S1: 60-70 parts of modal and 20-30 parts of mint fiber are fed into a single-sided circular knitting machine for weft plain knitting to obtain a single-sided weft plain knitted fabric;

[0012] S2: put 30-40 parts of the single-sided plain knitted fabric treated with S1 into 300-400 parts of deionized water, add 1-5 parts of sodium carbonate, 1-5 parts of scouring agent, 1-5 parts of detergent, and 1-5 parts of penetrant, heat to 90-98°C, soak for 40-60 minutes, cool to 40-50°C, add 0.1-1 parts of glacial acetic acid, continue to soak for 5-10 minutes, fish out, and dry;

[0013] S3: put 30-40 parts of the single-sided plain knitted fabric treated with S2 into 300-400 parts of deionized water, add 0.05-0.8 parts of ficin CAS No.: 9001-33-6, heat to 50-60°C, add 15-20 parts of sodium carbonate, 70-90 parts of sodium sulfate, and 1-5 parts of dye, soak for 40-60 minutes, remove and dry;

[0014] S4: plasma treatment of the single-jersey plain knit fabric treated with S3;

[0015] S5: Add 1-3 parts of soaping agent to 30-40 parts of single-sided plain knitted fabric treated with S4, heat to 85-95°C, soap for 5-10 minutes, cool to 40-50°C, wash with water for 10-20 minutes, remove and dry;

[0016] S6: The single-sided plain weft knitted fabric is fed into a setting machine, set at 150-160° C. for 40-60 seconds, cooled to room temperature, and rolled to obtain a mint fiber antibacterial knitted underwear fabric.

[0017] Wherein, the scouring agent is one of fatty alcohol polyoxyethylene ether, lauryl alcohol polyoxyethylene ether sulfate, secondary alkyl sodium sulfate, alkyl polysaccharide, fatty acid methyl ester sulfonate, and tea saponin.

[0018] Wherein, the cleaning agent is one of cleaning agent AR-815, cleaning agent AR-812 and cleaning agent 6501.

[0019] Wherein, the penetrant is one of penetrant JFC, J penetrant FC-1, penetrant JFC-2 and penetrant JFC-E.

[0020] Wherein, the soaping agent is Albatex AD, Albatex DS, Albatex AB-45, Albatex AB-55.

[0021] The plasma treatment parameters are as follows: the power frequency is set to 13.56 MHz radio frequency, the power range is 100-150 watts, the operating pressure is 100-150 mTorr, and the treatment time is 10-30 minutes.

[0022] The mixed gas for plasma treatment has a volume ratio of ammonia to isopentenyl flavonoid vapor of 1:0.03-0.07 and a flow rate of 30-50 ml / min.

[0023] Reaction mechanism

[0024] 1. Plasma treatment introduces amino groups: Ammonia is used as part of the plasma treatment to introduce amino groups onto the fabric surface. These amino groups provide the necessary active sites for subsequent chemical addition reactions.

[0025] 2. Thiol-olefin addition reaction: The thiol (-SH) provided by ficin and isopentenyl flavonoids (an olefin-containing compound) undergo an addition reaction under the catalytic action of the amino group. This reaction involves opening the C=C bond of isopentenyl flavonoids and reacting with the thiol in ficin to form a sulfhydryl-alkane bond.

[0026] 3. Formation of protein-flavonoid adducts: Through the above reaction, the surface of the fabric is modified with a complex of protein and flavonoids, which not only changes the surface properties of the fabric, but also enhances its antibacterial properties.

[0027] 4. Improvement of fabric functionality: The introduction of this protein-flavonoid adduct improves its antibacterial properties and may enhance its antioxidant properties.

[0028] Technical Effects

[0029] Compared with the prior art, the advantages and positive effects of the present invention are:

[0030] 1. Destroy bacterial cell membrane: Protein-flavonoid adducts can interact with bacterial cell membranes, destroy their structural integrity, and lead to bacterial death.

[0031] 2. Inhibit the activity of enzymes related to bacterial growth: Flavonoids have the ability to inhibit enzymes necessary for the growth of certain bacteria, so this fabric can effectively inhibit the growth of bacteria.

[0032] 3. Provide lasting protection: Through the combination of physical and chemical methods, the antibacterial layer formed by protein-flavonoid adducts on the surface of the fabric is not easily washed off, providing long-term antibacterial protection.

[0033] 4. Enhance the functionality of fabrics: In addition to antibacterial properties, the introduction of this protein-flavonoid adduct improves other functional properties of fabrics, including better comfort and durability. DETAILED DESCRIPTION

[0034] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description in combination with embodiments and comparative examples:

[0035] 1. Tensile elastic recovery rate: refer to FZ / T70006-2004 "Test method for tensile elastic recovery rate of knitted fabrics" for testing;

[0036] 2. Moisture absorption and quick-drying property: refer to GB / T21655.1-2008 "Evaluation of moisture absorption and quick-drying property of textiles Part 1: Single combination test method" to test water absorption rate and evaporation rate;

[0037] 3. Antibacterial rate: Tested with reference to the oscillation method of FZ / T73023-2006 "Antibacterial knitwear".

[0038] Example 1

[0039] A process for producing mint fiber antibacterial knitted underwear fabric, the operating steps of which are as follows:

[0040] S1: 60g of modal and 20g of mint fiber are fed into a single-sided circular knitting machine for weft plain knitting to obtain a single-sided weft plain knitted fabric;

[0041] S2: 30g of the single-sided plain knitted fabric treated with S1 was placed in 300g of deionized water, and 1g of sodium carbonate, 1g of scouring agent, 1g of detergent, and 1g of penetrant were added. The temperature was raised to 90°C, and the fabric was soaked for 40min. The temperature was then lowered to 40°C, and 0.1g of glacial acetic acid was added. The fabric was soaked for another 5min, and then the fabric was removed and dried.

[0042] S3: put 30g of the single-sided plain knitted fabric treated with S2 into 300g of deionized water, add 0.05g of ficin CAS No.: 9001-33-6, heat to 50°C, add 15g of sodium carbonate, 70g of sodium sulfate, and 1g of dye, soak for 40min, remove and dry;

[0043] S4: plasma treatment of the single-jersey plain knit fabric treated with S3;

[0044] S5: Add 1 g of soaping agent to 30 g of the single-sided plain knitted fabric treated with S4, heat to 85°C, soap for 5 min, cool to 40°C, wash with water for 10 min, remove and dry;

[0045] S6: The single-sided plain weft knitted fabric is fed into a setting machine, set at 150° C. for 40 seconds, cooled to room temperature, and rolled to obtain a mint fiber antibacterial knitted underwear fabric.

[0046] The scouring agent is fatty alcohol polyoxyethylene ether.

[0047] The cleaning agent is cleaning agent AR-815.

[0048] The penetrant is JFC.

[0049] The soaping agent is Albatex AD.

[0050] The plasma treatment parameters are: the power frequency is set to 13.56 MHz radio frequency, the power range is 100 watts, the operating pressure is 100 mTorr, and the treatment time is 10 minutes.

[0051] The mixed gas for the plasma treatment has a volume ratio of ammonia to isopentenyl flavonoid vapor of 1:0.03 and a flow rate of 30 ml / min.

[0052] Example 2

[0053] A process for producing mint fiber antibacterial knitted underwear fabric, the operating steps of which are as follows:

[0054] S1: 63g of modal and 23g of mint fiber are fed into a single-sided circular knitting machine for weft plain knitting to obtain a single-sided weft plain knitted fabric;

[0055] S2: 33g of the single-sided plain knitted fabric treated with S1 was placed in 340g of deionized water, and 2g of sodium carbonate, 2g of scouring agent, 2g of detergent, and 2g of penetrant were added. The temperature was raised to 92°C, and after soaking for 45min, the temperature was lowered to 45°C, 0.5g of glacial acetic acid was added, and the fabric was soaked for another 6min, and then the fabric was fished out and dried.

[0056] S3: 33g of the single-sided plain knitted fabric treated with S2 was placed in 340g of deionized water, and 0.2g of ficin (CAS No.: 9001-33-6) was added. After heating to 55°C, 16g of sodium carbonate, 75g of sodium sulfate, and 2g of dye were added. After soaking for 45min, the fabric was removed and dried.

[0057] S4: plasma treatment of the single-jersey plain knit fabric treated with S3;

[0058] S5: Add 2g of soaping agent to 33g of the single-sided plain knitted fabric treated with S4, heat to 88°C, soap for 6min, cool to 45°C, wash with water for 15min, remove and dry;

[0059] S6: The single-sided plain weft knitted fabric is fed into a setting machine, set at 155°C for 45 seconds, cooled to room temperature, and rolled to obtain a mint fiber antibacterial knitted underwear fabric.

[0060] The scouring agent is lauryl alcohol polyoxyethylene ether sulfate.

[0061] The cleaning agent is cleaning agent AR-812.

[0062] The penetrant is J penetrant FC-1.

[0063] The soaping agent is Albatex DS.

[0064] The plasma treatment parameters are: the power frequency is set to 13.56 MHz radio frequency, the power range is 110 watts, the operating pressure is 110 mTorr, and the treatment time is 15 minutes.

[0065] The mixed gas for the plasma treatment has a volume ratio of ammonia to isopentenyl flavonoid vapor of 1:0.04 and a flow rate of 35 ml / min.

[0066] Example 3

[0067] A process for producing mint fiber antibacterial knitted underwear fabric, the operating steps of which are as follows:

[0068] S1: 68g of modal and 28g of mint fiber are fed into a single-sided circular knitting machine for weft plain knitting to obtain a single-sided weft plain knitted fabric;

[0069] S2: 38g of the single-sided plain knitted fabric treated with S1 was placed in 380g of deionized water, and 4g of sodium carbonate, 4g of scouring agent, 4g of detergent, and 4g of penetrant were added. The temperature was raised to 96°C, and after soaking for 55min, the temperature was lowered to 45°C, 0.8g of glacial acetic acid was added, and the fabric was soaked for another 8min, and then the fabric was fished out and dried.

[0070] S3: 308g of the single-sided plain knitted fabric treated with S2 was placed in 380g of deionized water, 0.6g of ficin CAS No.: 9001-33-6 was added, and after heating to 55°C, 18g of sodium carbonate, 85g of sodium sulfate, and 4g of dye were added, and the mixture was soaked for 55min, then removed and dried;

[0071] S4: plasma treatment of the single-jersey plain knit fabric treated with S3;

[0072] S5: Add 2g of soaping agent to 38g of the single-sided plain knitted fabric treated with S4, heat to 93°C, soap for 8min, cool to 45°C, wash with water for 18min, remove and dry;

[0073] S6: The single-sided plain weft knitted fabric is fed into a setting machine, set at 155°C for 55 seconds, cooled to room temperature, and rolled to obtain a mint fiber antibacterial knitted underwear fabric.

[0074] The scouring agent is sodium secondary alkyl sulfate.

[0075] The cleaning agent is cleaning agent AR-812.

[0076] The penetrant is JFC-2.

[0077] The soaping agent is Albatex AB-45.

[0078] The plasma treatment parameters are: the power frequency is set to 13.56 MHz radio frequency, the power range is 140 watts, the operating pressure is 1040 mTorr, and the treatment time is 25 minutes.

[0079] The mixed gas for the plasma treatment has a volume ratio of ammonia to isopentenyl flavonoid vapor of 1:0.06 and a flow rate of 45 ml / min.

[0080] Example 4

[0081] A process for producing mint fiber antibacterial knitted underwear fabric, the operating steps of which are as follows:

[0082] S1: 70g of modal and 30g of mint fiber are fed into a single-sided circular knitting machine for weft plain knitting to obtain a single-sided weft plain knitted fabric;

[0083] S2: 40g of the single-sided plain knitted fabric treated with S1 was placed in 400g of deionized water, and 5g of sodium carbonate, 5g of scouring agent, 5g of detergent, and 5g of penetrant were added. The temperature was raised to 98°C, and after soaking for 60min, the temperature was lowered to 50°C, 1g of glacial acetic acid was added, and the fabric was soaked for another 10min, and then the fabric was fished out and dried.

[0084] S3: Put 40g of the single-sided plain knitted fabric treated with S2 into 400g of deionized water, add 0.8g of ficin CAS No.: 9001-33-6, heat to 60°C, add 20g of sodium carbonate, 90g of sodium sulfate, and 5g of dye, soak for 60min, remove and dry;

[0085] S4: plasma treatment of the single jersey knit fabric treated with S3;

[0086] S5: Add 3g of soaping agent to 40g of the single-sided plain knitted fabric treated with S4, heat to 95°C, soap for 10min, cool to 50°C, wash with water for 20min, remove and dry;

[0087] S6: The single-sided plain weft knitted fabric is fed into a setting machine, set at 160° C. for 60 seconds, cooled to room temperature, and rolled to obtain a mint fiber antibacterial knitted underwear fabric.

[0088] The scouring agent is tea saponin.

[0089] The cleaning agent is cleaning agent 6501.

[0090] The penetrant is penetrant JFC-E.

[0091] The soaping agent is Albatex AB-55.

[0092] The plasma treatment parameters are: the power frequency is set to 13.56 MHz radio frequency, the power range is 150 watts, the operating pressure is 150 mTorr, and the treatment time is 30 minutes.

[0093] The mixed gas for the plasma treatment has a volume ratio of ammonia to isopentenyl flavonoid vapor of 1:0.07 and a flow rate of 50 ml / min.

[0094] Comparative Example 1

[0095] In this example, no ficin was added, and the other procedures were the same as in Example 1.

[0096] Comparative Example 2

[0097] In this example, no ammonia is added, and the other steps are the same as those in Example 1.

[0098] Comparative Example 3

[0099] In this example, isopentenyl flavonoids were not added, and the other conditions were the same as those in Example 1.

[0100] Test results:

[0101] Tensile elastic recovery rate / % Water absorption % Evaporation rate g / h Antibacterial rate% Example 1 92.5 244 0.36 97.5 Example 2 92.8 241 0.37 98.1 Example 3 93.1 238 0.39 98.4 Example 4 93.4 236 0.40 98.8 Comparative Example 1 80.2 280 0.21 86.6 Comparative Example 2 83.5 271 0.24 88.1 Comparative Example 3 86.1 265 0.26 89.5

[0102] Through the data analysis of the above embodiments and comparative examples, the mint fiber antibacterial knitted underwear fabric prepared by the present invention has a high tensile elastic recovery rate, low water absorption rate, and high evaporation rate, so that it has better comfort and durability; in addition, the mint fiber antibacterial knitted underwear fabric prepared by the present invention has an excellent antibacterial rate.

[0103] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A process for producing mint fiber antibacterial knitted underwear fabric, the operating steps of which are: S1: According to the weight proportion, 60-70 parts of modal and 20-30 parts of mint fiber are fed into a single-sided circular knitting machine for weft plain knitting to obtain a single-sided weft plain knitted fabric; S2: put 30-40 parts of the single-sided plain knitted fabric treated with S1 into 300-400 parts of deionized water, add 1-5 parts of sodium carbonate, 1-5 parts of scouring agent, 1-5 parts of detergent, and 1-5 parts of penetrant, heat to 90-98°C, soak for 40-60 minutes, cool to 40-50°C, add 0.1-1 parts of glacial acetic acid, continue to soak for 5-10 minutes, fish out, and dry; S3: put 30-40 parts of the single-sided plain knitted fabric treated with S2 into 300-400 parts of deionized water, add 0.05-0.8 parts of ficin, heat to 50-60°C, add 15-20 parts of sodium carbonate, 70-90 parts of sodium sulfate, and 1-5 parts of dye, soak for 40-60 minutes, remove and dry; S4: plasma treatment of the single-jersey plain knit fabric treated with S3; S5: Add 1-3 parts of soaping agent to 30-40 parts of single-sided plain knitted fabric treated with S4, heat to 85-95°C, soap for 5-10 minutes, cool to 40-50°C, wash with water for 10-20 minutes, remove and dry; S6: The single-sided plain weft knitted fabric is fed into a setting machine, set at 150-160°C for 40-60s, cooled to room temperature, and rolled to obtain a mint fiber antibacterial knitted underwear fabric; The mixed gas for plasma treatment adopts a volume ratio of ammonia to isopentenyl flavonoid vapor of 1:0.03-0.07 and a flow rate of 30-50 ml / min.

2. The process for producing the mint fiber antibacterial knitted underwear fabric according to claim 1, characterized in that: The scouring agent is one of fatty alcohol polyoxyethylene ether, lauryl alcohol polyoxyethylene ether sulfate, secondary alkyl sodium sulfate, alkyl polysaccharide, fatty acid methyl ester sulfonate and tea saponin.

3. The process for producing the mint fiber antibacterial knitted underwear fabric according to claim 1, characterized in that: The cleaning agent is one of cleaning agent AR-815, cleaning agent AR-812 and cleaning agent 6501.

4. The process for producing the mint fiber antibacterial knitted underwear fabric according to claim 1, characterized in that: The penetrant is one of penetrant JFC, J penetrant FC-1, penetrant JFC-2 and penetrant JFC-E.

5. The process for producing the mint fiber antibacterial knitted underwear fabric according to claim 1, characterized in that: The soaping agent is Albatex AD, Albatex DS, Albatex AB-45 and Albatex AB-55.

6. The process for producing the mint fiber antibacterial knitted underwear fabric according to claim 1, characterized in that: The plasma treatment parameters are: the power frequency is set to 13.56 MHz radio frequency, the power range is 100-150 watts, the operating pressure is 100-150 mTorr, and the treatment time is 10-30 minutes.