Hyaluronic acid moisturizing antibacterial knitted fabric as well as production process and application thereof

By using a shaping machine and a highly efficient oil degreasing agent prepared by modified carboxymethyl chitosan in the knitted fabric production process, the problem of waste liquid generation in the pretreatment process is solved, and the effects of process simplification, waste liquid reduction and fabric performance improvement are achieved.

CN119593206APending Publication Date: 2025-03-11TONGXIANG YINGYUE CLOTHING CO LTD
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Patent Information

Application Number
CN202411565723.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

The prior art generates a large amount of waste liquid in the pretreatment process of knitted fabrics, resulting in increased complexity and cost of subsequent wastewater treatment.

Method used

The degreasing and dry cloth treatment are completed in one step using a shaping machine, and the efficient degreasing agent prepared by modified carboxymethyl chitosan is used to reduce waste liquid generation and simplify the process flow.

Benefits of technology

It significantly reduces waste liquid emissions, simplifies the production process, reduces the cost of subsequent wastewater treatment, and improves the color fastness of the fabric and the absorption capacity of the antibacterial finishing solution.

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Abstract

The invention discloses a hyaluronic acid moisturizing antibacterial knitted fabric and a production process and application thereof, and belongs to the technical field of fabrics, the hyaluronic acid moisturizing antibacterial knitted fabric comprises a basic fabric layer, an efficient degreaser and an antibacterial finishing liquid; the base fabric layer is prepared by blending hyaluronic acid modified fibers and cereal protein modified functional fibers. The integrated operation of one-stop oil removal and dry cloth treatment is realized by utilizing the boarding machine, so that the production process is obviously simplified, the discharge amount of waste liquid is greatly reduced, the cost is effectively reduced in the subsequent wastewater treatment link, and the dual improvement of environmental protection and economic benefits is embodied. The efficient degreasing agent is successfully developed by modifying carboxymethyl chitosan, the degreasing agent shows excellent performance in the aspect of removing stubborn oil stains and other impurities on the surface of the fabric, the fabric can be effectively purified, the color fastness can be remarkably improved, and the subsequent absorption capacity of the fabric to antibacterial finishing liquid is remarkably improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of fabrics, and in particular to a hyaluronic acid moisturizing and antibacterial knitted fabric and a production process and application thereof. Background Art

[0002] By compounding hyaluronic acid with fiber, hyaluronic acid can be evenly distributed inside the fiber, has good durability, can improve the comfort of the fabric, and can give the fiber antibacterial effect.

[0003] For example, Chinese patent CN115874328B discloses a hyaluronic acid skin-friendly moisturizing knitted fabric and its production process, including weaving, embryo setting, singeing, pretreatment, dyeing, in-cylinder antibacterial treatment, drying and finalizing finishing. The dye uses Huntsman EC-type active dyes to achieve good homochromaticity and even dyeing of modal cotton. Singeing and light polishing in the cylinder are used to ensure the gloss of the fabric. The hyaluronic acid functional finishing makes the fabric rich in hyaluronic acid molecules and has a good moisturizing effect. On the basis of making full use of the respective characteristics of modal / cotton fibers, the fabric is given antibacterial and moisturizing, moisture absorption and perspiration, soft and smooth characteristics through hyaluronic acid function, moisture absorption and perspiration, and hand finishing, making it comfortable, soft, beautiful and excellent wearing performance.

[0004] However, the pre-treatment process for oil and impurity removal in the above patent is not only cumbersome in operation steps, but also produces a large amount of waste liquid in the process; this side effect undoubtedly increases the complexity and cost of subsequent wastewater treatment. Therefore, optimizing the pre-treatment process to reduce waste liquid generation and simplify the operation steps has become the key to improving overall environmental protection benefits and efficiency.

[0005] Based on this, the present invention has designed this embodiment to provide a hyaluronic acid moisturizing and antibacterial knitted fabric and its production process and application to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a hyaluronic acid moisturizing and antibacterial knitted fabric and its production process and application.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A hyaluronic acid moisturizing and antibacterial knitted fabric, comprising a base fabric layer, a high-efficiency degreasing agent and an antibacterial finishing liquid;

[0009] The base fabric layer is made of a blend of hyaluronic acid modified fiber and grain protein modified functional fiber;

[0010] The high-efficiency degreasing agent contains the following raw materials in parts by weight: 7-12 parts of 2-carboxyethyl phosphoric acid, 7-8 parts of sodium hypophosphite, 3-6 parts of ethylene dichloride, 6-7 parts of modified carboxymethyl chitosan, 0.5-0.8 parts of defoaming agent and 45-60 parts of water;

[0011] The modified carboxymethyl chitosan contains the following raw materials in parts by weight: 6-7 parts of carboxymethyl chitosan powder, 6-7 parts of NaIO4, 2-3 parts of anhydrous calcium chloride and 100-200 parts of water with a pH of 3-4;

[0012] The antibacterial finishing liquid contains the following raw materials in parts by weight: 15-34 parts of tris(2-carboxyethyl)phosphine hydrochloride, 1-3 parts of cetyl alcohol polyoxyethylene ether, 6-9 parts of picoxystrobin, and 40-48 parts of water.

[0013] A production process of the hyaluronic acid moisturizing and antibacterial knitted fabric comprises the following steps:

[0014] Step 1: Preparation of the base fabric layer: blended with 60-78% hyaluronic acid modified fiber and 22-40% grain protein modified functional fiber;

[0015] Step 2: preparing a highly efficient degreasing agent;

[0016] A. Add 2-carboxyethyl phosphoric acid, sodium hypophosphite and ethylene dichloride to water in sequence and stir to obtain a mixture A;

[0017] B. Modified carboxymethyl chitosan: add carboxymethyl chitosan powder to water with a pH of 3-4, stir until dissolved, add NaIO4, react under light-proof conditions, add anhydrous calcium chloride to remove iodide ions in the solution, filter to remove precipitates, precipitate in anhydrous ethanol and freeze-dry to obtain white powder, which is modified carboxymethyl chitosan;

[0018] C. Add defoamer and modified carboxymethyl chitosan to mixture A and continue stirring to obtain a high-efficiency degreasing agent;

[0019] Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent;

[0020] Step 4: dilute the antibacterial finishing liquid with water; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove, and then dehydrate it through the rolling roller;

[0021] Step 5: Preheat the impregnated base fabric layer and dry it to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0022] Furthermore, step A is specifically as follows: 7-12 parts of 2-carboxyethyl phosphoric acid, 7-8 parts of sodium hypophosphite and 3-6 parts of ethylene dichloride are added to 45-60 parts of water in sequence, and stirred for 3-5 minutes to obtain mixture A.

[0023] Furthermore, step B is specifically as follows: 6-7 parts of carboxymethyl chitosan powder are added to 100-200 parts of water with a pH of 3-4, stirred until dissolved, 6-7 parts of NaIO4 are added, reacted at 34-40°C in the dark for 15-20 minutes, 2-3 parts of anhydrous calcium chloride are added to remove iodide ions in the solution, filtered to remove the precipitate, precipitated in anhydrous ethanol and freeze-dried to obtain a white powder, which is the modified carboxymethyl chitosan.

[0024] Furthermore, step C is specifically as follows: adding 0.5-0.8 parts of defoaming agent and modified carboxymethyl chitosan to mixture A, and continuing stirring for 10-15 minutes to obtain a high-efficiency degreasing agent.

[0025] Furthermore, in the step three, the degreasing temperature is 60-65°C, the rolling rate is 40%, the drying temperature is 180-185°C, and the vehicle speed is 12-15m / min.

[0026] Furthermore, step four is specifically as follows: diluting the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 3-4:1; adding the diluted finishing agent into the rolling groove of the setting machine, and then completely immersing the base fabric layer in the solution of the rolling groove for 2-3 minutes, and then dehydrating it through the rolling roller.

[0027] Furthermore, the antibacterial finishing liquid contains the following raw materials in parts by weight: 21-25 parts of tris(2-carboxyethyl)phosphine hydrochloride, 1.5-2 parts of cetyl alcohol polyoxyethylene ether, 7-8 parts of picoxystrobin, and 42-46 parts of water.

[0028] Furthermore, step five is specifically as follows: preheating the impregnated base fabric layer at 70-80°C, and then drying and cross-linking and curing at 95-100°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0029] A use of the hyaluronic acid moisturizing and antibacterial knitted fabric in the preparation of clothing or household textiles.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention utilizes a shaping machine to realize the integrated operation of one-stop oil removal and dry cloth treatment, which not only significantly simplifies the production process, making it more efficient and smooth, but also greatly reduces the discharge of waste liquid, thereby achieving effective cost compression in the subsequent wastewater treatment link, reflecting the dual improvement of environmental protection and economic benefits.

[0032] The present invention successfully developed a high-efficiency degreasing agent by modifying carboxymethyl chitosan. The degreasing agent shows excellent performance in removing stubborn oil stains and other impurities on the surface of fabrics. It can not only effectively purify the fabrics, but also significantly improve the color fastness. This dual optimization effect significantly improves the subsequent absorption capacity of the fabrics for antibacterial finishing liquids, and opens up a more efficient and high-quality path for the post-processing process of fabric processing.

[0033] The hyaluronic acid antibacterial and moisturizing knitted fabric prepared by the present invention gradually releases hyaluronic acid factors while contacting the surface of human skin, which can maintain the moisture content of the skin and repair it, so that the skin can achieve the effect of continuous moisturizing and nourishing. As a natural substance rich in the human body itself, it can be in contact with the human body for a long time without irritation. While effectively antibacterial, it can deepen the health care effect of the body to a greater extent. Combined with the softness and breathability of the fiber, it can be applied to many fields such as clothing and home textiles. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are 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.

[0035] Embodiment 1

[0036] This embodiment provides a production process of hyaluronic acid moisturizing and antibacterial knitted fabric, comprising the following steps:

[0037] Step 1: Preparation of the base fabric layer: blended with 78% hyaluronic acid modified fiber and 22% grain protein modified functional fiber;

[0038] Step 2: preparing a highly efficient degreasing agent;

[0039] A. Add 12 kg of 2-carboxyethyl phosphoric acid, 8 kg of sodium hypophosphite and 6 kg of ethylene dichloride to 60 kg of water in sequence and stir for 5 min to obtain a mixture A;

[0040] B. Modified carboxymethyl chitosan: 7 kg of carboxymethyl chitosan powder was added into 200 kg of water with a pH of 4, stirred until dissolved, 7 kg of NaIO4 was added, reacted at 40°C in the dark for 20 min, 3 kg of anhydrous calcium chloride was added to remove iodide ions in the solution, filtered to remove the precipitate, precipitated in anhydrous ethanol and freeze-dried to obtain a white powder, namely the modified carboxymethyl chitosan;

[0041] C. Add 0.8 kg of defoamer and modified carboxymethyl chitosan to the mixture A and continue stirring for 15 min to obtain a high-efficiency degreasing agent;

[0042] Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent; degreasing temperature is 65°C, rolling rate is 40%, dry fabric temperature is 185°C, and vehicle speed is 15m / min;

[0043] Step 4: dilute the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 4:1; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove for 3 minutes, and then dehydrate it through the rolling roller;

[0044] The antibacterial finishing liquid contains the following raw materials in parts by weight: 34 kg of tris(2-carboxyethyl)phosphine hydrochloride, 3 kg of cetyl alcohol polyoxyethylene ether, 9 kg of picoxystrobin, and 48 kg of water;

[0045] Step 5: Preheat the impregnated base fabric layer at 80°C, and then dry and cross-link and solidify at 100°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0046] The picoxystrobin was purchased from Hubei Huiheyuan Chemical Co., Ltd.

[0047] The defoamer is defoamer B-503, purchased from Guangdong Zhonglianban Fine Chemical Co., Ltd.

[0048] The degreasing device uses Monfongs 328Twin-Air8F shaping machine;

[0049] The hyaluronic acid modified fiber is taken from Chinese patent CN110549696B;

[0050] The cereal protein modified functional fiber is taken from Chinese patent CN107164828A;

[0051] The knitted fabric prepared by the present invention was tested for performance and found to be in compliance with national standards;

[0052] Anti-pilling performance: Level 3 (GB / T 4802.1-2008);

[0053] Antistatic performance: Class B durable type (GB / T 12703.1—2008).

[0054] Embodiment 2

[0055] This embodiment provides a production process of hyaluronic acid moisturizing and antibacterial knitted fabric, comprising the following steps:

[0056] Step 1: Preparation of the base fabric layer: blended with 60% hyaluronic acid modified fiber and 40% grain protein modified functional fiber;

[0057] Step 2: preparing a highly efficient degreasing agent;

[0058] A. Add 7 kg of 2-carboxyethyl phosphoric acid, 7 kg of sodium hypophosphite and 3 kg of ethylene dichloride to 45 kg of water in sequence and stir for 3 min to obtain a mixture A;

[0059] B. Modified carboxymethyl chitosan: 6 kg of carboxymethyl chitosan powder was added into 100 kg of water with a pH of 3, stirred until dissolved, 6 kg of NaIO4 was added, reacted at 34°C in the dark for 15 min, 2 kg of anhydrous calcium chloride was added to remove iodide ions in the solution, filtered to remove the precipitate, precipitated in anhydrous ethanol and freeze-dried to obtain a white powder, which is the modified carboxymethyl chitosan;

[0060] C. Add 0.5 kg of defoamer and modified carboxymethyl chitosan to the mixture A and continue stirring for 10 min to obtain a high-efficiency degreasing agent;

[0061] Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent; degreasing temperature is 60°C, rolling rate is 40%, dry fabric temperature is 180°C, and vehicle speed is 12m / min;

[0062] Step 4: dilute the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 3:1; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove for 2 minutes, and then dehydrate it through the rolling roller;

[0063] The antibacterial finishing liquid contains the following raw materials in parts by weight: 15 kg of tris(2-carboxyethyl)phosphine hydrochloride, 1 kg of cetyl alcohol polyoxyethylene ether, 6 kg of picoxystrobin, and 40 kg of water;

[0064] Step 5: Preheat the impregnated base fabric layer at 70°C, and then dry and cross-link at 95°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0065] Embodiment 3

[0066] This embodiment provides a production process of hyaluronic acid moisturizing and antibacterial knitted fabric, comprising the following steps:

[0067] Step 1: Preparation of the base fabric layer: blended with 70% hyaluronic acid modified fiber and 30% grain protein modified functional fiber;

[0068] Step 2: preparing a highly efficient degreasing agent;

[0069] A. Add 9 kg of 2-carboxyethyl phosphoric acid, 7.6 kg of sodium hypophosphite and 5 kg of ethylene dichloride to 52 kg of water in sequence and stir for 4 min to obtain a mixture A;

[0070] B. Modified carboxymethyl chitosan: 6.2 kg of carboxymethyl chitosan powder was added to 120 kg of water with a pH of 3, stirred until dissolved, 6.8 kg of NaIO4 was added, reacted at 38°C in the dark for 17 min, 2.6 kg of anhydrous calcium chloride was added to remove iodide ions in the solution, filtered to remove the precipitate, precipitated in anhydrous ethanol and freeze-dried to obtain a white powder, which is the modified carboxymethyl chitosan;

[0071] C. Add 0.6 kg of defoamer and modified carboxymethyl chitosan to the mixture A and continue stirring for 12 min to obtain a high-efficiency degreasing agent;

[0072] Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent; degreasing temperature is 62°C, rolling rate is 40%, dry fabric temperature is 183°C, and vehicle speed is 14m / min;

[0073] Step 4: dilute the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 3:1; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove for 3 minutes, and then dehydrate it through the rolling roller;

[0074] The antibacterial finishing liquid contains the following raw materials in parts by weight: 21 kg of tris(2-carboxyethyl)phosphine hydrochloride, 2 kg of cetyl alcohol polyoxyethylene ether, 7 kg of picoxystrobin, and 44 kg of water;

[0075] Step 5: Preheat the impregnated base fabric layer at 75°C, and then dry and cross-link at 97°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0076] Comparative Example 1: The difference between this comparative example and Example 3 is that the carboxymethyl chitosan is not modified;

[0077] This comparative example provides a production process for a hyaluronic acid moisturizing and antibacterial knitted fabric, comprising the following steps:

[0078] Step 1: Preparation of the base fabric layer: blended with 70% hyaluronic acid modified fiber and 30% grain protein modified functional fiber;

[0079] Step 2: preparing a highly efficient degreasing agent;

[0080] A. Add 9 kg of 2-carboxyethyl phosphoric acid, 7.6 kg of sodium hypophosphite and 5 kg of ethylene dichloride to 52 kg of water in sequence and stir for 4 min to obtain a mixture A;

[0081] B. Add 0.6 kg of defoamer and 6.2 kg of carboxymethyl chitosan powder to the mixture A and continue stirring for 12 min to obtain a high-efficiency degreasing agent;

[0082] Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent; degreasing temperature is 62°C, rolling rate is 40%, dry fabric temperature is 183°C, and vehicle speed is 14m / min;

[0083] Step 4: dilute the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 3:1; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove for 3 minutes, and then dehydrate it through the rolling roller;

[0084] The antibacterial finishing liquid contains the following raw materials in parts by weight: 21 kg of tris(2-carboxyethyl)phosphine hydrochloride, 2 kg of cetyl alcohol polyoxyethylene ether, 7 kg of picoxystrobin, and 44 kg of water;

[0085] Step 5: Preheat the impregnated base fabric layer at 75°C, and then dry and cross-link at 97°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0086] Comparative Example 2: The difference between this comparative example and Example 3 is that the oil removal temperature is different;

[0087] This comparative example provides a production process for a hyaluronic acid moisturizing and antibacterial knitted fabric, comprising the following steps:

[0088] Step 1: Preparation of the base fabric layer: blended with 70% hyaluronic acid modified fiber and 30% grain protein modified functional fiber;

[0089] Step 2: preparing a highly efficient degreasing agent;

[0090] A. Add 9 kg of 2-carboxyethyl phosphoric acid, 7.6 kg of sodium hypophosphite and 5 kg of ethylene dichloride to 52 kg of water in sequence and stir for 4 min to obtain a mixture A;

[0091] B. Modified carboxymethyl chitosan: 6.2 kg of carboxymethyl chitosan powder was added to 120 kg of water with a pH of 3, stirred until dissolved, 6.8 kg of NaIO4 was added, reacted at 38°C in the dark for 17 min, 2.6 kg of anhydrous calcium chloride was added to remove iodide ions in the solution, filtered to remove the precipitate, precipitated in anhydrous ethanol and freeze-dried to obtain a white powder, which is the modified carboxymethyl chitosan;

[0092] C. Add 0.6 kg of defoamer and modified carboxymethyl chitosan to the mixture A and continue stirring for 12 min to obtain a high-efficiency degreasing agent;

[0093] Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent; degreasing temperature is 50°C, rolling rate is 40%, dry fabric temperature is 183°C, and vehicle speed is 14m / min;

[0094] Step 4: dilute the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 3:1; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove for 3 minutes, and then dehydrate it through the rolling roller;

[0095] The antibacterial finishing liquid contains the following raw materials in parts by weight: 21 kg of tris(2-carboxyethyl)phosphine hydrochloride, 2 kg of cetyl alcohol polyoxyethylene ether, 7 kg of picoxystrobin, and 44 kg of water;

[0096] Step 5: Preheat the impregnated base fabric layer at 75°C, and then dry and cross-link at 97°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

[0097] Experimental example

[0098] The antibacterial performance was tested according to AATCC 100-2019. This test method quantitatively evaluated the antibacterial activity of the fabric after contact with bacteria for 24 hours. After culture, the bacteria were washed off the fabric, and the antibacterial rate was calculated by the percentage of bacterial reduction. The viable bacterial concentration (A0) of the standard blank test sample after 24 hours of oscillation was 2.0×10 5 cfu·mL -1 , the viable bacterial concentration of the antibacterial fabric sample after 24h of oscillation A1 (cfu mL -1 );

[0099] Antibacterial rate % = (1-A1 / A0) × 100%

[0100] The color fastness to washing is measured with reference to AATCC 61-2013 "Color fastness to washing: rapid method"; the color fastness value is 1.0-5.0, and the higher the level, the better the color fastness; the color fastness to washing ≥4.0 is qualified;

[0101] The results are as follows:

[0102] project Embodiment 1 Embodiment 2 Embodiment 3 Comparative Example 1 Comparative Example 2 Live bacteria concentration A1 <100 <100 <100 <![CDATA[8.2×10 3 ]]> <![CDATA[6.4×10 3 ]]> Antibacterial rate% 99.9 99.9 99.9 95.9 96.8 Color fastness Level 5.0 Level 5.0 Level 5.0 Level 3.5 Level 5.0

[0103] The present invention completes the operations of degreasing and drying cloth in one step through a shaping machine, which not only effectively simplifies the process flow, but also greatly reduces the generation of waste liquid and effectively reduces the cost of subsequent wastewater treatment.

[0104] The high-efficiency degreasing agent prepared by modified carboxymethyl chitosan in the present invention has a significant effect on removing impurities such as oil stains on the surface of fabrics, improves the lubricity and bundling of fibers, thereby increasing the subsequent absorption capacity of fabrics for antibacterial finishing liquids and improving color fastness.

[0105] The hyaluronic acid antibacterial and moisturizing knitted fabric prepared by the present invention gradually releases hyaluronic acid factors while contacting the surface of human skin, which can maintain the moisture content of the skin and repair it, so that the skin can achieve the effect of continuous moisturizing and nourishing. As a natural substance rich in the human body itself, it can be in contact with the human body for a long time without irritation. While effectively antibacterial, it can deepen the health care effect of the body to a greater extent. Combined with the softness and breathability of the fiber, it can be applied to many fields such as clothing and home textiles.

[0106] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hyaluronic acid moisturizing and antibacterial knitted fabric, characterized in that: It includes a base fabric layer, a high-efficiency degreaser and an antibacterial finishing liquid; The base fabric layer is made of a blend of hyaluronic acid modified fiber and grain protein modified functional fiber; The high-efficiency degreasing agent contains the following raw materials in parts by weight: 7-12 parts of 2-carboxyethyl phosphoric acid, 7-8 parts of sodium hypophosphite, 3-6 parts of ethylene dichloride, 6-7 parts of modified carboxymethyl chitosan, 0.5-0.8 parts of defoaming agent and 45-60 parts of water; The modified carboxymethyl chitosan contains the following raw materials in parts by weight: 6-7 parts of carboxymethyl chitosan powder, 6-7 parts of NaIO4, 2-3 parts of anhydrous calcium chloride and 100-200 parts of water with a pH of 3-4; The antibacterial finishing liquid contains the following raw materials in parts by weight: 15-34 parts of tris(2-carboxyethyl)phosphine hydrochloride, 1-3 parts of cetyl alcohol polyoxyethylene ether, 6-9 parts of picoxystrobin, and 40-48 parts of water.

2. A production process of the hyaluronic acid moisturizing and antibacterial knitted fabric as claimed in claim 1, characterized in that: The following steps are involved: Step 1: Preparation of the base fabric layer: blended with 60-78% hyaluronic acid modified fiber and 22-40% grain protein modified functional fiber; Step 2: preparing a highly efficient degreasing agent; A. Add 2-carboxyethyl phosphoric acid, sodium hypophosphite and ethylene dichloride to water in sequence and stir to obtain a mixture A; B. Modified carboxymethyl chitosan: add carboxymethyl chitosan powder to water with a pH of 3-4, stir until dissolved, add NaIO4, react under light-proof conditions, add anhydrous calcium chloride to remove iodide ions in the solution, filter to remove precipitates, precipitate in anhydrous ethanol and freeze-dry to obtain white powder, which is modified carboxymethyl chitosan; C. Add defoamer and modified carboxymethyl chitosan to mixture A and continue stirring to obtain a high-efficiency degreasing agent; Step 3: Degrease the base fabric layer with a high-efficiency degreasing agent; Step 4: dilute the antibacterial finishing liquid with water; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove, and then dehydrate it through the rolling roller; Step 5: Preheat the impregnated base fabric layer and dry it to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

3. The production process according to claim 2, characterized in that: Step A specifically comprises: adding 7-12 parts of 2-carboxyethyl phosphoric acid, 7-8 parts of sodium hypophosphite and 3-6 parts of ethylene dichloride to 45-60 parts of water in sequence, and stirring for 3-5 minutes to obtain a mixture A.

4. The production process according to claim 3, characterized in that: Step B is specifically as follows: 6-7 parts of carboxymethyl chitosan powder are added to 100-200 parts of water with a pH of 3-4, stirred until dissolved, 6-7 parts of NaIO4 are added, reacted at 34-40° C. in the dark for 15-20 minutes, 2-3 parts of anhydrous calcium chloride are added to remove iodide ions in the solution, precipitates are removed by filtration, white powder is obtained by precipitating in anhydrous ethanol and freeze-drying, which is the modified carboxymethyl chitosan.

5. The production process according to claim 4, characterized in that: Step C specifically comprises: adding 0.5-0.8 parts of defoaming agent and modified carboxymethyl chitosan to mixture A, and continuing stirring for 10-15 minutes to obtain a high-efficiency degreasing agent.

6. The production process according to claim 5, characterized in that: In the step 3, the degreasing temperature is 60-65° C., the rolling rate is 40%, the drying temperature is 180-185° C., and the vehicle speed is 12-15 m / min.

7. The production process according to claim 6, characterized in that: Step 4 is as follows: dilute the antibacterial finishing liquid with water, with the volume ratio of water to finishing liquid being 3-4:1; add the diluted finishing agent into the rolling groove of the setting machine, and then completely immerse the base fabric layer in the solution of the rolling groove for 2-3 minutes, and then dehydrate it through the rolling roller.

8. The production process according to claim 7, characterized in that: The antibacterial finishing liquid contains the following raw materials in parts by weight: 21-25 parts of tris(2-carboxyethyl)phosphine hydrochloride, 1.5-2 parts of cetyl alcohol polyoxyethylene ether, 7-8 parts of picoxystrobin, and 42-46 parts of water.

9. The production process according to claim 8, characterized in that: Step five is as follows: preheating the impregnated base fabric layer at 70-80°C, and then drying and cross-linking and curing at 95-100°C to obtain the hyaluronic acid moisturizing and antibacterial knitted fabric.

10. Use of the hyaluronic acid moisturizing and antibacterial knitted fabric as claimed in claim 1 in the preparation of clothing and household textiles.

Citation Information

Patent Citations

  • Preparation method of cereal protein modified functional fibers

    CN107164828A

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    CN110549696B

  • Hyaluronic acid skin-friendly moisturizing knitted fabric and its production process

    CN115874328B