阅读说明：本技术 一种竹纤维、红豆杉复合纤维的制备方法及其应用 (Preparation method and application of bamboo fiber and taxus chinensis composite fiber ) 是由 张欢 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种竹纤维、红豆杉复合纤维的制备方法包括如下原料制备而成：红豆杉、茶多酚、竹纤维,所述的制备方法包括以下步骤：步骤1,将红豆杉与茶多酚按照比例混合,制备混合浆液；步骤2,将混合浆液与天然竹纤维浆粕按照比例混合,制备纺丝原液；步骤3,将所述纺丝原液经过纺丝、水洗、烘干,得到竹纤维加入红豆杉的复合纤维；采用本发明复合纤维制成的面层的卫生巾体感舒适,又能有效保护女性的生殖道健康。(The invention discloses a preparation method of bamboo fiber and Chinese yew composite fiber, which comprises the following steps: the preparation method comprises the following steps: step 1, mixing taxus chinensis and tea polyphenol according to a proportion to prepare mixed pulp; step 2, mixing the mixed pulp with natural bamboo fiber pulp according to a proportion to prepare a spinning solution; step 3, spinning, washing and drying the spinning stock solution to obtain composite fibers of bamboo fibers and taxus chinensis; the sanitary towel with the surface layer made of the composite fiber is comfortable in body feel and can effectively protect the health of female genital tracts.)

1. A preparation method of bamboo fiber and Chinese yew composite fiber comprises the following steps: the preparation method comprises the following steps:

step 1, mixing taxus chinensis and tea polyphenol according to a proportion to prepare mixed pulp;

step 2, mixing the mixed pulp with natural bamboo fiber pulp according to a proportion to prepare a spinning solution;

step 3, spinning, washing and drying the spinning stock solution to obtain composite fibers of bamboo fibers and taxus chinensis;

in the step 1, the raw material powder of the taxus chinensis and the raw material powder of the tea polyphenol are mixed according to the weight ratio of 1: 1 mixing, adding water, and grinding into mixed slurry with solid content of 10-15%;

in the step 2, the weight ratio of the mixed pulp to the natural bamboo fiber pulp is 1: 200.

2. the method of claim 1, wherein the yew raw material powder comprises yew branch dry powder, yew leaf powder, and yew root powder.

3. The method according to claim 2, wherein a dispersant is further added in step 1, and the amount of the dispersant added is 0.5% by weight of the mixed raw material powders of taxus chinensis and tea polyphenol.

4. The method according to claim 3, wherein the dispersant is a fatty acid monoglyceride.

5. The preparation method according to claim 4, wherein the step 1 is specifically: dissolving tea polyphenol and dispersant in water, adding the raw powder of the taxus chinensis under stirring, and stirring uniformly to obtain mixed slurry containing the taxus chinensis and the tea polyphenol.

6. The preparation method according to claim 5, wherein the step 2 is specifically that the mixed pulp and the natural bamboo fiber pulp are mixed according to the proportion, 5% sodium hydroxide solution is added for stirring reaction, and the reaction is carried out at room temperature for 2-3 hours to obtain the spinning solution.

7. The preparation method according to claim 6, wherein the step 3 is specifically: and (3) washing the spinning solution obtained in the step (2) with ethanol to be neutral, filtering, spinning the spinning solution, stretching and drying to obtain the composite fiber.

8. The composite fiber containing bamboo fiber, taxus chinensis and tea polyphenol as the multiple elements prepared by the method of any one of claims 1 to 7, is characterized in that the linear density of the composite fiber is filaments of 100.7 to 166.7dtex/96 to 120F.

9. A method for preparing a sanitary napkin facing layer, comprising spinning the composite fiber according to any one of claims 1 to 7 into a yarn and then weaving the yarn into a facing material.

10. A multi-element sanitary napkin containing bamboo fiber comprises a surface layer made of composite fiber fabric.

Technical Field

The invention belongs to the technical field of sanitary napkins, and particularly relates to a preparation method of a composite fiber with bamboo fiber added with taxus chinensis and application of the composite fiber in the field of sanitary napkins.

Background

The sanitary napkin is an absorbent material, mainly made of cotton, non-woven fabric, paper pulp or high molecular polymer and high molecular polymer synthetic paper made of the above materials, and is used for absorbing menstrual blood flowing out from vagina when women have menstrual flow.

The sanitary towel directly contacts with the mucous membrane tissue of the human body to absorb menstrual blood, and the menstrual blood contains rich nutrient substances and is easy to become a culture medium for breeding bacteria. The sanitary towel provided in the existing market mostly adopts materials such as non-woven fabrics or plastic perforated films as surface layers, an absorption layer is arranged below the surface layers, the surface layers cannot enable the surface of the sanitary towel to be more breathable and dry, and the sanitary towel does not have the antibacterial property of breathable fabrics, so that the female feels dysphoria and uneasy during menstrual periods, the working efficiency and the life quality are affected, particularly, the female feels moist and stuffy at the pudendum and is very uncomfortable by using the sanitary towel with poor breathability and dryness, and the breeding of various bacteria can be accelerated, thereby causing gynecological diseases.

The spunlace non-woven fabric made of natural bamboo fibers is applied to a sanitary towel as a surface layer in the market at present, the surface layer of the sanitary towel with the bamboo fiber surface layer in the common structure is hard and not soft enough, and has poor skin-friendly property and air permeability when in use, and does not have the effects of eliminating peculiar smell, resisting bacteria and sterilizing, or the function of the sanitary towel is increased by processing the bamboo fiber non-woven fabric with an antibacterial and sterilizing material, so that the inclusion property is poor, and the material is easy to run off so as to reduce the sterilizing function.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a preparation method of bamboo fiber and taxus chinensis composite fiber for a surface layer of a sanitary towel, which solves the problems that the surface layer is poor in skin-friendly property and cannot effectively resist and inhibit bacteria when the conventional sanitary towel is used.

The invention provides a preparation method of bamboo fiber and Chinese yew composite fiber, which comprises the following steps: the preparation method comprises the following steps:

step 1, mixing taxus chinensis and tea polyphenol according to a proportion to prepare mixed pulp;

step 2, mixing the mixed pulp with natural bamboo fiber pulp according to a proportion to prepare a spinning solution;

step 3, spinning, washing and drying the spinning stock solution to obtain composite fibers of bamboo fibers and taxus chinensis;

in the step 1, the raw material powder of the taxus chinensis and the raw material powder of the tea polyphenol are mixed according to the weight ratio of 1: 1 mixing, adding water, and grinding into mixed slurry with solid content of 10-15%;

in the step 2, the weight ratio of the mixed pulp to the natural bamboo fiber pulp is 1: 200.

preferably, the raw material powder of yew comprises dry branch powder, leaf powder and root powder of yew.

Preferably, a dispersing agent is further added in the step 1, and the adding amount of the dispersing agent is 0.5% of the weight of the mixed taxus chinensis raw material powder and tea polyphenol raw material powder.

Preferably, the dispersant is a fatty acid monoglyceride.

Preferably, the step 1 specifically comprises: dissolving tea polyphenol and dispersant in water, adding the raw powder of the taxus chinensis under stirring, and stirring uniformly to obtain mixed slurry containing the taxus chinensis and the tea polyphenol.

Preferably, the step 2 is to specifically mix the mixed pulp and the natural bamboo fiber pulp according to the ratio, add 5% sodium hydroxide solution, stir and react, and react at room temperature for 2-3 hours to obtain the spinning solution.

Preferably, the step 3 specifically comprises: and (3) washing the spinning solution obtained in the step (2) with ethanol to be neutral, filtering, spinning the spinning solution, stretching and drying to obtain the composite fiber, wherein the linear density of the composite fiber is 100.7-166.7dtex/96-120F filament.

The invention also aims to provide application of the composite fiber as a surface layer of a sanitary towel, and particularly relates to a surface material woven by spinning the composite fiber into yarns and used as the surface layer material of the sanitary towel after being cut.

The invention also provides a sanitary towel which comprises a surface layer and a water locking layer woven by the composite fibers, wherein a sanitary towel chip is arranged between the surface layer and the water locking layer.

The blended fabric of the taxus chinensis, the tea polyphenol and the bamboo fiber composite fiber can be prepared into blended yarn by adopting a method which is universal in the industry, and the blended yarn is woven after being blended into yarn.

In the technical scheme, the taxus chinensis, the tea polyphenol and the bamboo fiber pulp are all purchased from the market. The yew contains a large amount of tannin, and the substances have the effects of inhibiting bacteria, astringing toxin, and disinfecting and expelling toxin. Modern researches find that the taxus chinensis plant contains various compounds such as taxane and the like and has anticancer activity; the tea polyphenol is a full-natural antioxidant food extracted from tea leaves, and has the characteristics of strong antioxidant capacity, no toxic or side effect, no peculiar smell and the like; scientific research shows that the active substances such as tea polyphenol and the like have the functions of detoxification, strong elimination of harmful free radicals, anti-aging, inhibition on cancer cells, antibiosis, sterilization and inhibition on AIDS virus; the bamboo fiber fabric has strong water absorption and air permeability and strong antibacterial and bacteriostatic effects, and the bamboo fiber is a natural green environment-friendly material and is easy to degrade.

The invention adopts equipment and process for producing viscose functional long fiber, spins yew and tea polyphenol mixed viscose fiber: feeding materials according to the weight of fibers to be spun, selecting natural bamboo fiber pulp as a raw material, mixing, heating, melting, extruding and spinning the calculated input amount of the taxus chinensis and tea polyphenol mixed pulp to obtain the taxus chinensis and tea polyphenol mixed viscose fiber, which has good flexibility and is easy to spin, and solves the problems of large bamboo fiber rigidity, low spinnability and line density and length in the production process;

the Chinese yew, tea polyphenol and bamboo fiber blended surface layer sanitary towel provided by the invention is soft and comfortable, has good air permeability and good moisture absorption and release performance, and the sanitary towel with the surface layer has the functions of antibiosis, health care, environmental protection and the like.

Detailed Description

The present invention will be further described with reference to the following specific examples.