Viscose-based bamboo charcoal fiber for whitening and skin care as well as preparation method and application of viscose-based bamboo charcoal fiber

Abstract

The invention discloses a viscose-based bamboo charcoal fiber for whitening and skin care and a preparation method and application thereof, and the preparation method comprises the following steps: (1) viscose and bamboo charcoal fiber subjected to high-temperature carbonization treatment are mixed and treated into a fiber web, and the addition proportion of the carbon fiber is 5-10% of the total mass of the fiber; (2) carrying out pre-wetting treatment on the fiber web to compact the fiber web and remove air among fibers; (3) reinforcing the fiber web through a plurality of front and back spunlace processes; and (4) performing dehydration treatment on the reinforced fiber web, and then performing after-treatment and drying shaping to form a final viscose-based bamboo charcoal fiber product for whitening and skin care. The invention provides an effective process method for producing high-performance and environment-friendly mask fiber cloth. The viscose-based bamboo charcoal fiber product is suitable for being widely applied to various whitening and skin care products, and is especially suitable for consumers who pursue an efficient skin care effect.

Description

Technical Field

[0001] The invention relates to the technical field of textile materials, and in particular to a viscose-based bamboo charcoal fiber for whitening and skin care, and a preparation method and application thereof. Background Art

[0002] In the current beauty and skin care field, there is a growing demand for materials with multifunctional skin care effects, especially in whitening, deep cleansing, oil control, pore tightening and moisturizing. Traditional skin care fiber materials, such as cotton and polyester, have good physical properties, but have limitations in skin care effects, and usually need to be enhanced by adding chemical ingredients or functional skin care agents. However, these additives are easily washed off during use, resulting in weakened or ineffective skin care effects, and may cause skin discomfort or environmental pollution. Therefore, the development of a fiber material with natural skin care functions and environmental friendliness has become an important research direction in the field of skin care products. Bamboo charcoal fiber, especially bamboo charcoal fiber treated with high temperature carbonization, has attracted much attention due to its unique porous structure and excellent adsorption capacity. Bamboo charcoal fiber can not only effectively absorb dirt and oil on the skin surface, but also has natural oil control and pore tightening effects. In addition, bamboo charcoal fiber can maintain the moisture balance of the skin and help improve the gloss and texture of the skin. As a fast-growing renewable resource, bamboo has a short growth cycle and requires almost no irrigation or chemical pesticides. In addition, bamboo charcoal fiber has good biodegradability, which meets the current high standards for environmental protection and sustainability.

[0003] Based on the unique properties of bamboo charcoal fiber, such as natural skin care effects, excellent durability and biodegradability, the combination of bamboo charcoal fiber and viscose fiber to prepare a mask fiber cloth with multiple skin care functions such as whitening, deep cleansing, oil control, pore tightening and moisturizing is an ideal choice to meet the needs of the modern skin care market. This not only provides consumers with a better skin care experience, but also contributes to environmental protection and sustainable development. Summary of the invention

[0004] The purpose of the present invention is to provide a viscose-based bamboo charcoal fiber for whitening and skin care, a preparation method and an application thereof, so as to solve the technical problem that traditional skin care fiber materials have limitations in skin care effects.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a method for preparing viscose-based bamboo charcoal fiber for whitening and skin care, comprising the following steps:

[0007] (1) After viscose fiber and bamboo charcoal fiber treated by high temperature carbonization are mixed, a preliminary fiber web structure is formed by an opening machine, wherein the addition ratio of the carbon fiber is 5-10% of the total fiber mass; during the mixing process, the bamboo charcoal fiber is ensured to be evenly distributed in the viscose fiber to achieve the best skin care effect;

[0008] (2) pre-wetting the fiber web to compact the fiber web and remove air between fibers;

[0009] (3) Strengthening the web through multiple front and back spunlacing processes;

[0010] (4) Dehydrating the reinforced fiber web, followed by post-finishing and drying to form the final viscose-based bamboo charcoal fiber product for whitening and skin care. After the spunlace-processed fiber web is dehydrated, it is sent to a dryer for drying and shaping to ensure that the bamboo charcoal fiber and the viscose fiber are tightly combined. This step can ensure the stability of the fiber cloth during use and the skin care effect.

[0011] Furthermore, the tensile strength of the viscose-based bamboo charcoal fiber is not less than 2.0 cN / dtex, and the elongation at break is not less than 10%.

[0012] Furthermore, the bamboo charcoal fiber has a specification of 1.37 dtex and a length of 38 mm. The bamboo charcoal fiber has a rich microporous structure and can effectively absorb dirt, oil and excess keratin on the skin surface, while playing the role of controlling oil and tightening pores.

[0013] Furthermore, the water-jet method in (3) is specifically:

[0014] a. For surface density of 50-70g / m 2 The water spunlace pressures of the fiber webs were 40, 55, 55, and 65 bar, respectively, and the web conveying speed was 2.5 m / min to ensure the tightness of the fiber structure.

[0015] b. For facial mask fabrics that need to further enhance the cleaning and moisturizing effects, the hydroentanglement pressure can be adjusted to 50, 70, 70, 80 bar, or 60, 85, 85, 95 bar, and the corresponding screen speed is maintained at 2.5 m / min;

[0016] c. To accelerate production needs, the spunlace pressure can be adjusted to 30, 40, 40, 50 bar, and the screen conveying speed can be increased to 5.0m / min or 7.5m / min to improve production efficiency.

[0017] 5. The method for preparing viscose-based bamboo charcoal fibers for whitening and skin care according to claim 1, characterized in that the pre-humidification treatment in (2) compacts the fluffy fiber web and removes the air in the fiber web, thereby improving the distribution uniformity of the bamboo charcoal fibers and the skin care performance of the fiber cloth.

[0018] The present invention also provides a viscose-based bamboo charcoal fiber prepared by the preparation method for viscose-based bamboo charcoal fiber for whitening and skin care. The viscose-based bamboo charcoal fiber product has excellent adsorption capacity and air permeability, can effectively absorb dirt and excess oil on the skin surface, while maintaining the moisture balance of the skin and improving the skin luster.

[0019] The present invention also provides an application of viscose-based bamboo charcoal fibers in cleaning products, and the cleaning products include facial masks and wet wipes.

[0020] Based on the above technical solution, the embodiments of the present invention can at least produce the following technical effects:

[0021] (1) The viscose-based bamboo charcoal fiber product prepared by the present invention will be tested for whitening, deep cleansing, oil control, pore tightening and moisturizing properties to ensure that it meets the predetermined usage standards. Through the natural properties of bamboo charcoal, it can not only effectively improve skin brightness, but also improve skin quality, control oil secretion, and provide deep moisturizing for the skin.

[0022] (2) Not only does it achieve uniform distribution of bamboo charcoal fibers in viscose-based bamboo charcoal fiber products, it also gives full play to the skin care function of bamboo charcoal, providing an effective process for producing high-performance, environmentally friendly facial mask fiber cloths. The viscose-based bamboo charcoal fiber is suitable for being widely used in various whitening and skin care products, especially for consumers who pursue efficient skin care effects. DETAILED DESCRIPTION

[0023] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as limiting the present invention, but should be understood as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0024] It should be understood that the terms described in the present invention are only for describing special embodiments and are not intended to limit the present invention. In addition, for the numerical range in the present invention, it should be understood that each intermediate value between the upper and lower limits of the scope is also specifically disclosed. Each smaller range between the intermediate value in any stated value or stated range and any other stated value or intermediate value in the described range is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded in the scope.

[0025] Unless otherwise indicated, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art. Although the present invention describes only preferred methods and materials, any methods and materials similar or equivalent to those described herein may also be used in the implementation or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials associated with the documents. In the event of a conflict with any incorporated document, the content of this specification shall prevail.

[0026] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments of the present invention description without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention description will be apparent to the skilled artisan. The present invention description and examples are exemplary only.

[0027] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0028] Example 1

[0029] 1. Raw material preparation:

[0030] Viscose fiber: Use high-quality wood pulp or cotton pulp as raw material to ensure the softness and skin-friendliness of the mask fabric.

[0031] Bamboo charcoal particles: After fine grinding, the particle size is uniform and free of impurities, and the addition ratio is 5-10% to enhance its adsorption and skin care effects.

[0032] 2. Preparation of viscose-based bamboo charcoal fiber:

[0033] Preparation of spinning solution: Dissolve the viscose fiber pulp in an appropriate amount of alkaline solution to form a uniform spinning solution.

[0034] Addition of bamboo charcoal particles: Add bamboo charcoal particles into the spinning solution in proportion, and use high-speed stirring and ultrasonic dispersion technology to ensure that the bamboo charcoal particles are evenly distributed.

[0035] Spinning: Using wet spinning technology, the spinning solution is extruded through a spinneret and enters a coagulation bath to form primary fibers.

[0036] 3. Preparation of whitening skin care mask fabric by spunlace:

[0037] Fiber web formation: The prepared viscose-based bamboo charcoal fiber is mixed with other functional fibers to form a uniform fiber web.

[0038] Spunlace processing: Use spunlace equipment for high-pressure water flow treatment. The spunlace pressure is adjusted to 50, 70, 70, 80 bar, or 60, 85, 85, 95 bar. The corresponding mesh curtain speed is maintained at 2.5 m / min to fully entangle the fibers and form a dense mask fabric.

[0039] For surface density of 50-70g / m 2 The spunlace pressures for the fiber webs were 40, 55, 55, and 65 bar, respectively, and the web conveying curtain speed was 2.5 m / min;

[0040] To accelerate production needs, the spunlace pressure can be adjusted to 30, 40, 40, 50 bar, and the screen conveying speed can be increased to 5.0m / min or 7.5m / min to improve production efficiency.

[0041] Post-processing: Dry, shape and cut the mask fabric to ensure it is flat and wrinkle-free.

[0042] Application effect:

[0043] Whitening effect: The porous structure of bamboo charcoal fiber can effectively absorb dirt and pigments on the skin surface, and long-term use helps brighten the skin tone.

[0044] Deep Cleansing: The powerful adsorption power of bamboo charcoal can remove oil and impurities from the skin and prevent pores from being clogged.

[0045] Oil control and pore tightening: Bamboo charcoal fiber can not only control oil, but also tighten pores and make the skin firmer.

[0046] Moisturizing effect: The excellent moisture absorption and breathability of viscose fiber help maintain the moisture balance of the skin and enhance the skin's hydration.

[0047] Environmental protection and health:

[0048] The selected raw materials are natural and renewable, the production process is low-pollution, in line with environmental protection concepts, and ensure the safety and environmental friendliness of the mask fabrics.

[0049] Experimental Results

[0050] Determination of skin surface oil content

[0051] The experiment of measuring the oil content on the skin surface found that the mask containing bamboo charcoal fiber showed excellent oil absorption ability. Compared with ordinary mask products without bamboo charcoal fiber, it can obviously absorb the oil secreted by the skin surface, and there is a significant difference. Specifically, the mask containing bamboo charcoal fiber can reduce the oil content on the skin surface by 37%, while the ordinary mask can only reduce the oil content by 15%, which is a significant difference. This result fully proves the significant advantage of bamboo charcoal fiber mask in absorbing oil.

[0052] Determination of skin melanin content

[0053] After the melanin content measurement experiment, it was found that the mask incorporating bamboo charcoal fiber showed excellent melanin absorption ability compared with traditional similar products without bamboo charcoal fiber. The experimental data clearly showed that after using the bamboo charcoal fiber mask, the melanin content on the surface of the skin decreased by an average of about 25%. This remarkable effect formed a sharp contrast with ordinary mask products, fully proving the unique advantages and effectiveness of bamboo charcoal fiber in promoting skin purification and reducing pigmentation.

[0054] Finally, it should be noted that:

[0055] 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 above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing viscose-based bamboo charcoal fiber for whitening and skin care, characterized in that: The following steps are involved: (1) viscose fiber and bamboo charcoal fiber that has been subjected to high temperature carbonization treatment are mixed and processed into a fiber web, wherein the addition ratio of the carbon fiber is 5-10% of the total mass of the fiber; (2) pre-wetting the fiber web to compact the fiber web and remove air between fibers; (3) Strengthening the fiber web through multiple front and back spunlacing processes; (4) The reinforced fiber web is dehydrated, and then post-finished and dried to form the final viscose-based bamboo charcoal fiber product for whitening and skin care.

2. The method for preparing viscose-based bamboo charcoal fiber for whitening and skin care according to claim 1, characterized in that: The tensile strength of the viscose-based bamboo charcoal fiber is not less than 2.0 cN / dtex, and the elongation at break is not less than 10%.

3. The method for preparing viscose-based bamboo charcoal fiber for whitening and skin care according to claim 1, characterized in that: The bamboo charcoal fiber has a specification of 1.37 dtex and a length of 38 mm.

4. The method for preparing viscose-based bamboo charcoal fiber for whitening and skin care according to claim 1, characterized in that: The specific water spunlace in (3) is as follows: the water spunlace pressure is 30-60, 40-85, 40-85, 50-95 bar, and the screen conveying speed is 2.5-7.5 m / min to ensure the compactness of the fiber structure.

5. The method for preparing viscose-based bamboo charcoal fiber for whitening and skin care according to claim 1, characterized in that: The pre-humidification treatment in (2) compacts the fluffy fiber web and removes the air in the fiber web, thereby improving the distribution uniformity of the bamboo charcoal fibers and the skin care performance of the fiber cloth.

6. A viscose-based bamboo charcoal fiber prepared by the preparation method of viscose-based bamboo charcoal fiber for whitening and skin care according to any one of claims 1 to 5, characterized in that: The viscose-based bamboo charcoal fiber product has excellent adsorption capacity and air permeability, and can effectively absorb dirt and excess oil on the skin surface, while maintaining the moisture balance of the skin and improving the skin's radiance.

7. The application of viscose-based bamboo charcoal fiber in cleaning products, characterized in that: The cleaning products include facial masks and wet wipes.