Preparation method of Chinese herbal medicine yarn with antibacterial and antipruritic effects

Abstract

The invention relates to the field of spinning, and discloses a preparation method of Chinese herbal medicine yarn with antibacterial and antipruritic effects, which comprises the following steps: preparing Chinese herbal medicine microcapsules; preparing Chinese herbal medicine water-soluble fibers; antibacterial and itching-relieving functional yarns are manufactured; composite yarns are manufactured; and performing functional finishing on the yarns. The nylon, the chitin fiber and the semi-water-soluble Chinese herbal medicine fiber serve as a yarn center inner wrapping layer, the chitin and the lyocell fiber are wound outside the yarn center inner wrapping layer to form the yarn, and in each washing process of a product, the yarn is formed along with dissolution of part of the water-soluble fiber. When the antibacterial antipruritic fabric is worn, part of the Chinese herbal medicine microcapsules in the antibacterial antipruritic fabric is released and transferred into the swollen chitin and lyocell fibers, the microcapsules are broken along with friction in the wearing process, the Chinese herbal medicine components are released, and finally the continuous antibacterial antipruritic effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of textiles, and in particular to a method for preparing Chinese herbal medicine yarn with antibacterial and antipruritic effects. Background Art

[0002] With the continuous improvement of living standards, people's demand for safe and healthy health care clothing and apparel is also increasing, especially for functional textiles for some skin problems. At present, health care fabrics on the market are very popular, but the realization of their yarns is mainly through directly adding Chinese herbal medicines to fibers and impregnating and coating various functional additives on the yarns. However, when using viscose, lyocell, nylon, and polyester as substrates to add Chinese herbal medicine products, the Chinese herbal medicine components cannot be released during use. Even if a part is released after wearing and abrasion, it is very limited. And using impregnation and coating greatly affects the flexibility and air permeability of the fabric, and it is easy to fall off during weaving or use. Summary of the Invention

[0003] The technical problem to be solved by the present invention is the technical problem proposed in the above background art, and a method for preparing Chinese herbal medicine yarn with antibacterial and antipruritic effects is provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is:

[0005] A method for preparing Chinese herbal medicine yarn with antibacterial and antipruritic effects, the method includes making Chinese herbal medicine microcapsules, making Chinese herbal medicine water-soluble fibers, making antibacterial and antipruritic functional yarns, making composite yarns, and performing functional finishing on the yarns. The specific steps are as follows:

[0006] S1: Extracting active ingredients from Chinese herbal medicines by extraction method to make essential oils;

[0007] S2: Coating the Chinese herbal medicine essential oil with microcapsules to form Chinese herbal medicine microcapsules;

[0008] S3: Dissolving 8-14% of Chinese herbal medicine microcapsules, 10-18% of water-soluble polymer, and 1-3% of water-soluble thermoplastic polymer in water to prepare a spinning dope;

[0009] S4: Heating the dope to 100-105°C, keeping the pressure at 0.05-0.06 MPa, fully stirring to dissolve it, and then entering the spinning process after filtration and degassing;

[0010] S5: Spraying the dope from the small holes of the spinneret into the coagulation bath, the temperature of the coagulation bath is 60-70°C, and fully mixing in the coagulation bath for 1-2 h after spraying to obtain virgin fibers;

[0011] S6: Subject the native fiber to wet heat primary stretching at 140 - 170°C, perform heat setting at 70°C - 180°C, and finally carry out a hot water crimping process to obtain the Chinese herbal medicine semi - water - soluble fiber;

[0012] S7: Produce the antibacterial and antipruritic functional yarn;

[0013] S8: Produce the composite yarn;

[0014] S9: Immerse the composite yarn in an aqueous solution composed of chitosan, Chinese herbal medicine microcapsules, and aqueous polyurethane;

[0015] S10: Bake and cure the aqueous solution to complete the functional finishing of the yarn.

[0016] Preferably, the Chinese herbal medicine microcapsules include a core material and a wall material that wraps the core material. The core material is composed of Chinese herbal medicine essential oil, and the wall material is a mixture of hydroxypropyl cellulose and porous starch prepared by an enzymatic method in a mass ratio of 2 - 3:1.

[0017] Preferably, the Chinese herbal medicine essential oil is one or more of tea tree essential oil, wormwood essential oil, peppermint essential oil, honeysuckle essential oil, clove essential oil, patchouli essential oil, sophora flavescens essential oil, and cnidium monnieri essential oil.

[0018] Preferably, the antibacterial and antipruritic functional yarn contains the following components:

[0019] 30 - 40% of Chinese herbal medicine semi - water - soluble fiber, 10 - 15% of chitin fiber, and 45 - 60% of nylon.

[0020] Preferably, the composite yarn is formed by taking the Chinese herbal medicine yarn as the central main yarn, and one chitin and lyocell blended yarn and one nylon yarn are wound around the main yarn line and twisted with each other.

[0021] Advantages of the present invention:

[0022] In the present invention, by using nylon, chitin fiber, and semi - water - soluble Chinese herbal medicine fiber as the inner wrapping layer of the yarn center and winding chitin and lyocell fiber outside to form the yarn, during each washing process of the product, as part of the water - soluble fiber dissolves, the internal Chinese herbal medicine microcapsules also release part of the content and transfer to the swollen chitin and lyocell fibers. During the wearing process, the microcapsules rupture with friction and release the Chinese herbal medicine components, ultimately achieving a continuous antibacterial and antipruritic effect. Brief description of the drawings

[0023] Figure 1 is a process flow diagram of the preparation method of the Chinese herbal medicine yarn with antibacterial and antipruritic effects. Detailed implementation manners

[0024] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0025] The present application designs a method for preparing Chinese herbal yarn with antibacterial and antipruritic effects, which includes preparing Chinese herbal microcapsules, preparing Chinese herbal water-soluble fibers, preparing antibacterial and antipruritic functional yarns, preparing composite yarns, and functionally finishing the yarns. The specific steps are as follows:

[0026] S1: Extracting active ingredients from Chinese herbal medicines to make essential oils;

[0027] S2: encapsulating the Chinese herbal essential oil into microcapsules to form Chinese herbal microcapsules;

[0028] S3: dissolving 8-14% of Chinese herbal medicine microcapsules, 10-18% of water-soluble polymers, and 1-3% of water-soluble thermoplastic polymers in water to prepare a spinning solution;

[0029] S4: The stock solution is heated to 100-105°C, stirred at a pressure of 0.05-0.06MPa to dissolve, and then filtered and degassed before entering the spinning process;

[0030] S5: Spray the stock solution from the spinneret hole into the coagulation bath, the temperature of the coagulation bath is 60-70°C, and fully mix it in the coagulation bath for 1-2 hours after spinning to obtain the original fiber;

[0031] S6: initially stretching the raw fiber at 140-170° C., heat setting at 70-180° C., and finally performing a hot water curling process to obtain the Chinese herbal semi-water-soluble fiber;

[0032] S7: Production of antibacterial and antipruritic functional yarn;

[0033] S8: making composite yarn;

[0034] S9: dipping the composite yarn into an aqueous solution consisting of chitosan, Chinese herbal medicine microcapsules, and water-based polyurethane;

[0035] S10: The aqueous solution is baked and solidified to complete the functional finishing of the yarn.

[0036] The Chinese herbal medicine microcapsule comprises a core material and a wall material wrapping the core material, wherein the core material is composed of Chinese herbal medicine essential oil, and the wall material is a mixture of hydroxypropyl cellulose and porous starch prepared by an enzyme method in a mass ratio of 2-3:1.

[0037] The Chinese herbal essential oil is one or more of tea tree essential oil, wormwood essential oil, peppermint essential oil, honeysuckle essential oil, clove essential oil, patchouli essential oil, sophora flavescens essential oil, and cnidium monnieri essential oil. The Chinese herbal essential oil has antibacterial and antipruritic effects.

[0038] The antibacterial and antipruritic functional yarn contains the following components:

[0039] 30 - 40% of Chinese herbal medicine semi - water - soluble fiber, 10 - 15% of chitin fiber, and 45 - 60% of nylon.

[0040] The composite yarn is composed of a Chinese herbal medicine yarn as the main middle yarn, a chitin and lyocell blended yarn, and a nylon yarn twisted around the main yarn. The addition of the chitin and lyocell blended yarn not only increases the antibacterial effect of the yarn, but also, when the final product is washed, due to the swelling effect of viscose - like fibers, the Chinese herbal medicine microcapsules released from the water - soluble fiber in the yarn core will be sealed inside the yarn, reducing the loss of active ingredients during the washing process.

[0041] After the yarn is made, weaving is required. During the weaving process, due to the large friction force on the yarn, it is easy to break and fuzz, so sizing treatment is needed. Using chitosan as the main component for sizing can reduce the problems generated during weaving. At the same time, when the woven fabric undergoes dyeing and finishing, a low - temperature enzyme treatment process can be selected to reduce the loss of Chinese herbal medicine components during dyeing and printing, and it also has a natural antibacterial effect.

[0042] Example 1: 60s antibacterial and antipruritic knitting yarn for underwear

[0043] 1. The components and mass ratios of the Chinese herbal medicine microcapsules: Pogostemon cablin 15%, honeysuckle essential oil 25%, tea tree essential oil 48%, peppermint essential oil 12%. The wall material is coated with a mixture of hydroxypropyl cellulose and starch in a mass ratio of 3:1;

[0044] 2. The spinning dope for fiber preparation is made by dissolving 14% of Chinese herbal medicine microcapsules, 20% of polyvinyl alcohol, and 2% of polyester amide in water to prepare the spinning dope for making Chinese herbal medicine semi - water - soluble fiber;

[0045] 3. The antibacterial and antipruritic functional yarn is composed of 34% of Chinese herbal medicine semi - water - soluble fiber, 12% of chitin fiber, and 54% of nylon by mass ratio;

[0046] 4. The chitin and lyocell blended yarn is blended in a ratio of 1:8.

[0047] The 60s yarn spun through the above process is then woven into a 200g / m 2 double - sided knitted plain fabric. After the fabric is washed 20 times in a washing machine, it still retains the Chinese herbal medicine antibacterial and antipruritic components, suitable for making health care underwear and bras.

[0048] Example 2: 40s antibacterial and antipruritic knitting yarn for home clothes

[0049] 1. Ingredients and mass ratios for making Chinese herbal medicine microcapsules: 37% tea tree essential oil, 15% clove essential oil, 15% patchouli essential oil, 24% sophora flavescens essential oil, 9% cnidium monnieri essential oil. The wall material is coated with a mixture of hydroxypropyl cellulose and starch mixed in a mass ratio of 2:1;

[0050] 2. The spinning dope for fiber preparation is composed of 12% Chinese herbal medicine microcapsules, 18% polyvinyl alcohol copolymer, and 3% polyester amide by mass, dissolved in water to prepare a spinning dope for making semi-water-soluble Chinese herbal medicine fibers;

[0051] 3. The antibacterial and antipruritic functional yarn is composed of 38% semi-water-soluble Chinese herbal medicine fibers, 10% chitin fibers, and 52% nylon by mass;

[0052] 4. The chitin and lyocell blended yarn is blended in a ratio of 1:8.

[0053] The 40s yarn spun through the above process is then woven into a 180 g / m 2 single-sided knitted plain fabric. After 10 washes in a washing machine, the fabric still retains the antibacterial and antipruritic components of Chinese herbal medicine, suitable for making health care home clothes and T-shirts.

[0054] The above embodiments are only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

Claims

1. A preparation method of Chinese herbal medicine yarn with antibacterial and antipruritic effects, characterized in that: The method includes preparing Chinese herbal medicine microcapsules, preparing Chinese herbal medicine water-soluble fibers, preparing antibacterial and antipruritic functional yarns, preparing composite yarns, and performing functional finishing on the yarns. The specific steps are as follows: S1: Extracting active ingredients from Chinese herbal medicines to make essential oils; S2: encapsulating the Chinese herbal essential oil into microcapsules to form Chinese herbal microcapsules; S3: dissolving 8-14% of Chinese herbal medicine microcapsules, 10-18% of water-soluble polymers, and 1-3% of water-soluble thermoplastic polymers in water to prepare a spinning solution; S4: The stock solution is heated to 100-105°C, stirred at a pressure of 0.05-0.06MPa to dissolve, and then filtered and degassed before entering the spinning process; S5: Spray the stock solution from the spinneret hole into the coagulation bath, the temperature of the coagulation bath is 60-70°C, and fully mix it in the coagulation bath for 1-2 hours after spinning to obtain the original fiber; S6: initially stretching the raw fiber at 140-170° C., heat setting at 70-180° C., and finally performing a hot water curling process to obtain the Chinese herbal semi-water-soluble fiber; S7: Production of antibacterial and antipruritic functional yarn; S8: making composite yarn; S9: dipping the composite yarn into an aqueous solution consisting of chitosan, Chinese herbal medicine microcapsules, and water-based polyurethane; S10: The aqueous solution is baked and solidified to complete the functional finishing of the yarn.

2. The preparation method of a Chinese herbal medicine yarn with antibacterial and antipruritic effects according to claim 1, characterized in that: The Chinese herbal medicine microcapsule comprises a core material and a wall material wrapping the core material, wherein the core material is composed of Chinese herbal medicine essential oil, and the wall material is a mixture of hydroxypropyl cellulose and porous starch prepared by an enzyme method in a mass ratio of 2-3:

1.

3. The preparation method of a Chinese herbal medicine yarn with antibacterial and antipruritic effects according to claim 1, characterized in that: The Chinese herbal essential oil is one or more of tea tree essential oil, wormwood essential oil, peppermint essential oil, honeysuckle essential oil, clove essential oil, patchouli essential oil, sophora flavescens essential oil, and cnidium monnieri essential oil.

4. A preparation method of a Chinese herbal medicine yarn with antibacterial and antipruritic effects according to claim 1, characterized in that: The antibacterial and antipruritic functional yarn comprises the following ingredients: Chinese herbal semi-water-soluble fiber 30-40%, chitin fiber 10-15%, nylon 45-60%.

5. The preparation method of a Chinese herbal medicine yarn with antibacterial and antipruritic effects according to claim 1, characterized in that: The composite yarn is formed by twisting the Chinese herbal medicine yarn as the middle main yarn, a chitin and lyocell blended yarn and a nylon yarn around the main yarn.

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