Polylactic acid fiber non-woven fabric used for hygienic material

A polylactic acid fiber and hygienic material technology, applied in the field of hygienic materials, can solve the problems of non-antibacterial function, white pollution, cross-infection, etc., and achieve the effect of increasing medicinal properties and improving the hard feeling

Inactive Publication Date: 2016-01-13
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the non-woven fabrics used in disposable sanitary products such as diapers and sanitary napkins are mainly based on polyolefin resins, which have been degraded in the natural environment for hundreds of years, resulting in serious "white pollution".
Moreover, with the improvement of human living sta

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The polylactic acid fiber non-woven fabric used for sanitary materials is made of pure polylactic acid fiber. The process flow is as follows: slice drying→slice feeding→melt extrusion→spinning→cooling and drawing→splitting and laying→ Fiber web hot-rolled and reinforced → trimming and winding. During the fiber web reinforcement process, negative ions or traditional Chinese medicine ingredients can be added between different layers of fiber webs, so that the formed non-woven fabric has the function of negative ion generation or specific medicinal effects.

[0016] The weight of the finished polylactic acid fiber non-woven fabric is 15-60 mm.

[0017] The polylactic acid fiber non-woven fabric has the following advantages: 1), using polylactic acid fiber as a raw material, has the advantages of pure natural antibacterial and non-allergenicity, and its plant source fiber has smooth, breathable, perspiration, anti-itch, Antibacterial and antibacterial, skin-friendly and sk...

Embodiment 2

[0019] The polylactic acid fiber non-woven fabric used for sanitary materials is made of 70% polylactic acid fiber and 30% chitosan fiber. The web forming process of the polylactic acid fiber and chitosan fiber is as follows: slicing drying → slicing Feeding→melt extrusion→spinning→cooling and drawing→splitting and laying; after the production of the fiber web is completed, the corresponding fiber web is laid according to the above weight percentage, and then reinforced by spunlace or needle punching to form polylactic acid fiber non-woven fabric. The weight of the formed non-woven fabric is 15-60g.

[0020] The non-woven fabric formed by blending chitosan fiber and polylactic acid fiber has the skin-friendly antibacterial and degradable properties of polylactic acid fiber and the health care performance of chitosan fiber.

Embodiment 3

[0022] The polylactic acid fiber non-woven fabric used for sanitary materials is made of 85% polylactic acid fiber and 15% bamboo fiber. The web forming process of polylactic acid fiber and bamboo fiber is as follows: slice drying → slice feeding → melting Extrusion→spinning→cooling and drafting→splitting and laying; after the production of the fiber mesh is completed, the corresponding fiber mesh is laid according to the above weight percentage, and the fiber mesh is hot-rolled and reinforced. During the fiber mesh reinforcement process, different layers of fiber Negative ion powder or traditional Chinese medicine ingredients are added between the nets, so that the formed non-woven fabric has the function of generating negative ions or specific medicinal effects.

[0023] Bamboo fiber has a strong ability to absorb and decompose, can absorb moisture and dry, deodorize and antibacterial, and has the properties of negative ion penetration. The non-woven fabric formed by blendin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a polylactic acid fiber non-woven fabric used for a hygienic material, belongs to the technical field of hygienic materials, and solves the problem that the present non-woven fabrics are single in function. The polylactic acid fiber non-woven fabric used for the hygienic material is by a pure polylactic acid fiber or a mixture of a polylactic acid fiber and a non-petroleum based fiber, the mixture comprises 50 to 100 % of polylactic acid fiber and 0 to 50 % non-petroleum based fiber. The polylactic acid fiber is used as the raw material of the polylactic acid fiber non-woven fabric, the polylactic acid fiber non-woven fabric is pure natural, bacteriostatic without sensitization, the plant source fiber is smooth, bacteriostatic, and can ventilate, drain sweat, relief itch and care skin. The non-petroleum based fiber is used for blending, natural characteristics of the polylactic acid fiber cannot be influenced, and defects of hydrophobicity and hard handfeel of the polylactic acid fiber can be overcome. Negative ions and traditional Chinese medicines are added in the non-woven fabric, special medical performances of the product can be increased, a medical need of the non-woven fabric used for the hygienic material can be met.

Description

technical field [0001] The invention belongs to the technical field of hygienic materials, and relates to a nonwoven fabric for hygienic materials, in particular to a degradable polylactic acid fiber nonwoven fabric with natural antibacterial ability. Background technique [0002] With the strengthening of social environmental awareness, the development and application of biodegradable polymers has attracted great attention. Polylactic acid (PLA) is a representative of chemically synthesized biodegradable lipopolyester. It has good biocompatibility and safety, is non-toxic and harmless to the human body, and gradually degrades in the body and in the natural environment, and finally becomes carbon dioxide and water. The monomer of polylactic acid is lactic acid, which is fermented by probiotics from renewable resource starch (extracted from corn, cassava and plant straw), and the source of raw materials is very rich. [0003] At present, the non-woven fabrics used in dispos...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04H1/435D04H1/4382
Inventor 尚佳
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