Degradable high-moisture-retention skin-friendly antibacterial mask base cloth and preparation method thereof

Abstract

The invention discloses degradable high-moisture-retention skin-friendly antibacterial mask base cloth and a preparation method thereof, and belongs to the field of non-woven cloth. The mask base cloth is prepared by mixing cellulose acetate fibers, chitosan fibers, silk fibers and wood pulp fibers. The mask base cloth sequentially comprises an antibacterial elastic base cloth lining layer and a high-moisture-retention skin-friendly atomizing layer from bottom to top. The antibacterial elastic base cloth lining layer is prepared from cellulose acetate fibers and chitosan fibers through an air laying method, and the high-moisture-retention skin-friendly atomizing layer is prepared from silk fibers and wood pulp fibers through a wet laying method. The high-moisture-retention skin-friendly atomizing layer is laid on the antibacterial elastic base cloth lining layer to form a whole, the whole is subjected to 2-4 spunlace reinforcement, and finally, the reinforced mask base cloth is dried in a hot rolling mill and hot air combined mode. The raw materials of the mask base cloth are all degradable, the mask base cloth has an antibacterial function while the tensile elasticity of the mask base cloth is improved, the skin-friendly performance and the liquid carrying rate can be greatly improved by adding the silk fibers, the problem of skin allergy caused by long application time is solved, and the mask base cloth has high environmental protection performance.

Description

Technical Field

[0001] The invention relates to a medical cosmetic facial mask technology, and in particular to a degradable, highly moisturizing, skin-friendly and antibacterial facial mask base fabric and a preparation method thereof. Background Art

[0002] With the rapid development of the beauty industry, facial masks, as fast-moving consumer goods, continue to see a growing market demand. The increasing demand for natural and safe skin care products has driven in-depth research on the materials and technologies of facial mask base fabrics. Currently, there are various materials for facial mask base fabrics on the market, including non-woven fabrics, silk fabrics, Tencel fabrics, etc. Each material has its own characteristics in terms of thickness, softness, breathability, etc., which directly determine the texture, efficacy and comfort of the facial mask. In order to improve the performance of facial mask base fabrics, composite processing technology is often used, such as mixing different fibers, and using processing methods such as spunlace technology to improve the shortcomings of the product and achieve performance complementarity. At the same time, there are also studies dedicated to the development of new fibers, such as seaweed fibers and lyocell fibers, for the production of facial mask base fabrics. The safety of facial mask base fabrics is also an important concern, and it is necessary to ensure that the limits of non-toxic and harmful substances are within a safe range to protect the health of consumers.

[0003] At present, polyester spunlace nonwoven materials are widely used as carriers of facial mask base fabrics, but in actual use, they have problems such as poor skin affinity, heavy environmental pollution, low nutrient solution transfer rate, low elasticity and difficulty in fitting facial contours. High-quality facial mask base materials that overcome these external factors are often expensive and unaffordable. Therefore, it is of great significance to study a facial mask base material with low cost, excellent performance and self-contained antibacterial function. Summary of the invention

[0004] Purpose of the invention: to improve the liquid carrying rate of the mask base fabric, enhance the tensile elasticity and applicability of the mask base fabric, achieve antibacterial and antimicrobial functions, and at the same time provide a degradable, highly moisturizing, skin-friendly and antibacterial mask base fabric and its preparation method.

[0005] Technical solution: The degradable, highly moisturizing, skin-friendly, and antibacterial facial mask base fabric described in the present invention comprises, from bottom to top, an antibacterial elastic base fabric lining layer and a highly moisturizing, skin-friendly, and insulating layer.

[0006] Preferably, the antibacterial elastic base fabric lining layer is made by mixing acetate fiber with a length of 35-45 mm and chitosan fiber with a length of 10-15 mm and then air-laying, wherein the mass fraction of acetate fiber is 30-65%, the mass fraction of chitosan fiber is 35-70%, the fineness of acetate fiber is 90-125 dtex, and the surface density of the elastic base fabric lining layer is 15-25 g / m 2 .

[0007] Preferably, the highly moisturizing and skin-friendly layer is made by mixing silk fibers with a length of 10-25 mm and wood pulp fibers with a length of 15-20 mm and then wet-forming the mixture, the wood pulp is ground into a precipitated fiber shape by a special beating device, and then evenly mixed with the silk fibers, wherein the mass fraction of the silk fibers is 40-65%, the mass fraction of the wood pulp fibers is 35-60%, and the density of the prepared highly moisturizing and skin-friendly layer is 25-30 g / m 2 .

[0008] Preferably, the highly moisturizing skin-friendly layer is laid flat on the antibacterial elastic base fabric lining layer.

[0009] Preferably, the wood pulp fiber is coniferous wood pulp.

[0010] A method for preparing a degradable, highly moisturizing, skin-friendly, and antibacterial facial mask base fabric comprises the following steps: firstly, an antibacterial elastic base fabric lining layer is prepared by an air-laid method, and then a highly moisturizing, skin-friendly, and insulating layer is prepared by a wet-laid method. The highly moisturizing, skin-friendly, and insulating layer is laid flat on the antibacterial elastic base fabric lining layer as a whole, and the whole is reinforced by a hydroentanglement method. The surface density of the prepared facial mask base fabric is 35-55 g / m2. The specific steps are as follows:

[0011] (1) Evenly mixing acetate fibers with a mass fraction of 30-65% and a length of 35-45 mm and chitosan fibers with a mass fraction of 35-70% and a length of 10-15 mm, and then air-laying the mixture to form a stretch base fabric lining with a surface density of 15-25 g / m2;

[0012] (2) Silk fibers with a mass fraction of 40-65% and a length of 10-25 mm and wood pulp fibers with a mass fraction of 35-60% and a length of 15-20 mm are uniformly mixed and then wet-laid to form a high-moisturizing skin-friendly layer with a surface density of 25-30 g / m2;

[0013] (3) Lay the highly moisturizing and skin-friendly layer flat on the antibacterial elastic base fabric lining as a whole, and perform hydroentanglement reinforcement on the whole:

[0014] The hydroentanglement process is that high-pressure water is formed into high-pressure water needles through the water spray plate, and the fiber web is densely sprayed, causing the fibers in the fiber web to shift and entangle. The highly moisturizing skin-friendly lining layer and the antibacterial elastic base fabric lining layer enter the laying curtain as a whole, and enter the flat net hydroentanglement area with the movement of the laying curtain. In the flat net hydroentanglement reinforcement process, the fiber web and the water needle are kept perpendicular, the hydroentanglement pressure is 25-75MPa, and the number of hydroentanglement passes is 2-4; when entering the drum hydroentanglement area, the fiber web is tightly attached to the drum, the outer layer of the fiber web is loose, the hydroentanglement effect is good, and the inner layer is contracted by pressure, which is conducive to fiber entanglement. Finally, the hydroentangled base fabric is led away from the drum surface, and the excess water is removed by negative pressure suction and squeezing roller pressing;

[0015] (4) Use hot rolling mill and hot air to dry the base fabric:

[0016] The hot rolling mill heats the mask base fabric to a high temperature through a special hot rolling process, and then processes it under the extrusion of a pair of rollers. The surface of the rollers has been specially treated to better contact with the mask base fabric and make the mask base fabric reach a predetermined thickness and shape. Under the action of high temperature and high pressure, the mask base fabric becomes more uniform and tight, thereby improving the quality and performance of the mask base fabric. Hot air drying is the process of the fiber web being dried on the drying equipment, using hot air to penetrate the fiber web, evaporating the moisture in the fiber web to achieve a drying effect. The temperature of the hot air oven is 60-90°C, and the hot air drying time is 30 minutes.

[0017] Compared with the prior art, the present invention has the following beneficial effects: all raw materials of the mask base fabric are degradable, and while improving the tensile elasticity of the mask base fabric, it has its own antibacterial and antimicrobial functions; the addition of silk fiber can greatly improve skin affinity and liquid-carrying rate, solve the problem of skin allergies caused by long application time, and has high environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural cross-sectional view of the present invention;

[0019] 1. Antibacterial elastic base fabric lining 2. Highly moisturizing skin-friendly layer. DETAILED DESCRIPTION

[0020] like Figure 1 A degradable, highly moisturizing, skin-friendly, and antibacterial facial mask base fabric is shown, wherein the facial mask base fabric comprises, from bottom to top, an antibacterial elastic base fabric lining layer 1 and a highly moisturizing, skin-friendly, and insulating layer 2.

[0021] In this example, the antibacterial elastic base fabric lining layer 1 is made of acetate fibers with a length of 35-45 mm and chitosan fibers with a length of 10-15 mm, which are mixed and then air-laid, wherein the mass fraction of acetate fibers is 30-65%, the mass fraction of chitosan fibers is 35-70%, and the fineness of acetate fibers is 90-125 dtex. The surface density of the elastic base fabric lining layer 1 is 15-25 g / m 2 .

[0022] In this example, the highly moisturizing skin-friendly layer 2 is made by mixing silk fibers with a length of 10-25 mm and wood pulp fibers with a length of 15-20 mm and then wet-forming the mesh. The wood pulp is ground into a precipitated fiber by a special pulping device and then evenly mixed with the silk fibers. The mass fraction of the silk fibers is 40-65%, and the mass fraction of the wood pulp fibers is 35-60%. The surface density of the highly moisturizing skin-friendly layer 2 is 25-30 g / m 2 .

[0023] In this example, the highly moisturizing skin-friendly protective layer 2 is laid flat on the antibacterial elastic base fabric lining layer 1.

[0024] In this example, the wood pulp fiber is coniferous wood pulp.

[0025] A method for preparing a degradable, highly moisturizing, skin-friendly, and antibacterial facial mask base fabric comprises: firstly preparing an antibacterial elastic base fabric lining layer 1 by an air-laid method, and then preparing a highly moisturizing, skin-friendly, and insulating layer 2 by a wet-laid method; the highly moisturizing, skin-friendly, and insulating layer 2 is laid flat on the antibacterial elastic base fabric lining layer 1 as a whole; and the whole is reinforced by a hydroentanglement method. The surface density of the prepared facial mask base fabric is 35-55 g / m2. The specific steps are as follows:

[0026] (1) Evenly mixing acetate fibers with a mass fraction of 30-65% and a length of 35-45 mm and chitosan fibers with a mass fraction of 35-70% and a length of 10-15 mm, and then air-laying the mixture to form a stretch base fabric lining layer 1 with a surface density of 15-25 g / m2;

[0027] (2) Silk fibers with a mass fraction of 40-65% and a length of 10-25 mm and wood pulp fibers with a mass fraction of 35-60% and a length of 15-20 mm are uniformly mixed and then wet-laid to form a highly moisturizing skin-friendly layer 2 with a surface density of 25-30 g / m2;

[0028] (3) Lay the highly moisturizing and skin-friendly layer 2 on the antibacterial elastic base fabric lining layer 1 as a whole, and perform hydroentanglement reinforcement on the whole:

[0029] The hydroentanglement process is that high-pressure water is formed into high-pressure water needles through the water spray plate, and the fiber web is densely sprayed, causing the fibers in the fiber web to shift and entangle. The highly moisturizing skin-friendly lining layer 2 and the antibacterial elastic base fabric lining layer 1 enter the laying curtain as a whole, and enter the flat net hydroentanglement area with the movement of the laying curtain. In the flat net hydroentanglement reinforcement process, the fiber web and the water needle are kept perpendicular, the hydroentanglement pressure is 25-75MPa, and the number of hydroentanglement passes is 2-4; when entering the drum hydroentanglement area, the fiber web is tightly attached to the drum, the outer layer of the fiber web is loose, the hydroentanglement effect is good, and the inner layer is contracted by pressure, which is conducive to fiber entanglement. Finally, the hydroentangled base fabric is led away from the drum surface, and the excess water is removed by negative pressure suction and squeezing roller pressing;

[0030] (4) Use hot rolling mill and hot air to dry the base fabric:

[0031] The hot rolling mill heats the mask base fabric to a high temperature through a special hot rolling process, and then processes it under the extrusion of a pair of rollers. The surface of the rollers has been specially treated to better contact with the mask base fabric and make the mask base fabric reach a predetermined thickness and shape. Under the action of high temperature and high pressure, the mask base fabric becomes more uniform and tight, thereby improving the quality and performance of the mask base fabric. Hot air drying is the process of the fiber web being dried on the drying equipment, using hot air to penetrate the fiber web, evaporating the moisture in the fiber web to achieve a drying effect. The temperature of the hot air oven is 60-90°C, and the hot air drying time is 30 minutes.

[0032] The present invention discloses a degradable, highly moisturizing, skin-friendly, and antibacterial facial mask base fabric and a preparation method thereof, which belong to the field of non-woven fabrics. The facial mask base fabric is prepared by mixing acetate fiber, chitosan fiber, silk fiber, and wood pulp fiber. The facial mask base fabric comprises, from bottom to top, an antibacterial elastic base fabric lining layer 1 and a highly moisturizing, skin-friendly, and insulating layer 2. The antibacterial elastic base fabric lining layer 1 is made of acetate fiber and chitosan fiber by air-laying, and the highly moisturizing, skin-friendly, and insulating layer 2 is made of silk fiber and wood pulp fiber by wet-laying. The highly moisturizing, skin-friendly, and insulating layer 2 is stacked on the antibacterial elastic base fabric lining layer 1, and as a whole, the whole is subjected to 2-4 hydroentanglement reinforcements, and finally the reinforced facial mask base fabric is dried by a hot rolling mill and hot air combined method. The raw materials of the mask base fabric described in the present invention are all degradable. While improving the tensile elasticity of the mask base fabric, it has its own antibacterial and antimicrobial functions. The addition of silk fiber can greatly improve skin affinity and liquid carrying rate, solve the problem of skin allergies caused by long application time, and has high environmental protection.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A degradable, highly moisturizing, skin-friendly and antibacterial facial mask base fabric, characterized in that: The mask base fabric comprises, from bottom to top, an antibacterial elastic base fabric lining layer and a highly moisturizing skin-friendly compressing layer; The antibacterial elastic base fabric lining layer is made by mixing acetate fibers with a length of 35-45 mm and chitosan fibers with a length of 10-15 mm through an air-laid method, wherein the mass fraction of acetate fibers is 30-65%, the mass fraction of chitosan fibers is 35-70%, the fineness of acetate fibers is 90-125 dtex, and the surface density of the elastic base fabric lining layer is 15-25 g / m 2 ; The highly moisturizing and skin-friendly layer is made by mixing silk fibers with a length of 10-25 mm and wood pulp fibers with a length of 15-20 mm through a wet web forming method, wherein the wood pulp is ground into a precipitated fiber form by a pulping device and then uniformly mixed with the silk fibers, wherein the mass fraction of the silk fibers is 40-65%, the mass fraction of the wood pulp fibers is 35-60%, and the density of the prepared highly moisturizing and skin-friendly layer is 25-30 g / m 2 .

2. A degradable, highly moisturizing, skin-friendly, antibacterial facial mask base fabric according to claim 1, characterized in that: The highly moisturizing and skin-friendly compressing layer is laid flat on the antibacterial elastic base fabric lining layer.

3. A degradable, highly moisturizing, skin-friendly and antibacterial facial mask base fabric according to claim 1, characterized in that: The wood pulp fiber is coniferous wood pulp.

4. A method for preparing a degradable, highly moisturizing, skin-friendly and antibacterial facial mask base fabric, characterized in that: First, an antibacterial elastic base fabric lining layer is prepared by air-laid method, and then a highly moisturizing skin-friendly aphrodisiac layer is prepared by wet-laid method. The highly moisturizing skin-friendly aphrodisiac layer is laid flat on the antibacterial elastic base fabric lining layer as a whole, and the whole is reinforced by hydroentanglement. The surface density of the obtained mask base fabric is 35-55 g / m 2 , the specific steps are as follows: (1) Acetate fiber with a mass fraction of 30-65% and a length of 35-45 mm and chitosan fiber with a mass fraction of 35-70% and a length of 10-15 mm are uniformly mixed and then air-laid to form a fiber with a surface density of 15-25 g / m 2 Elastic base fabric lining; (2) Silk fibers with a mass fraction of 40-65% and a length of 10-25 mm and wood pulp fibers with a mass fraction of 35-60% and a length of 15-20 mm are uniformly mixed and wet-laid to form a web with a surface density of 25-30 g / m 2 Highly moisturizing and skin-friendly layer; (3) Lay the highly moisturizing and skin-friendly layer flat on the antibacterial elastic base fabric lining as a whole, and perform hydroentanglement reinforcement on the whole: The hydroentanglement process is that high-pressure water is formed into high-pressure water needles through the water spray plate, and the fiber web is densely sprayed, causing the fibers in the fiber web to shift and entangle. The highly moisturizing skin-friendly lining layer and the antibacterial elastic base fabric lining layer enter the laying curtain as a whole, and enter the flat net hydroentanglement area with the movement of the laying curtain. In the flat net hydroentanglement reinforcement process, the fiber web and the water needle are kept perpendicular, the hydroentanglement pressure is 25-75MPa, and the number of hydroentanglement passes is 2-4; when entering the drum hydroentanglement area, the fiber web is tightly attached to the drum, the outer layer of the fiber web is loose, the hydroentanglement effect is good, and the inner layer is contracted by pressure, which is conducive to fiber entanglement. Finally, the hydroentangled base fabric is led away from the drum surface, and the excess water is removed by negative pressure suction and squeezing roller pressing; (4) Use hot rolling mill and hot air to dry the base fabric: The hot rolling mill heats the mask base fabric to a high temperature, and then processes it under the extrusion of a pair of rollers, which can better contact with the mask base fabric and make the mask base fabric reach a predetermined thickness and shape. Under the action of high temperature and high pressure, the mask base fabric becomes more uniform and tight, thereby improving the quality and performance of the mask base fabric. The hot rolling temperature is 10-120℃. Hot air drying is the fiber web on the drying equipment, using hot air to penetrate the fiber web, and the moisture in the fiber web evaporates to achieve the drying effect. The hot air oven temperature is 60-90℃, and the hot air drying time is 30min.

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