A kind of polylactic acid fiber guide layer material and preparation method thereof

The technology of polylactic acid fiber and guide layer is applied in the field of polylactic acid fiber guide layer material and its preparation, which can solve the problems of obstruction, poor guide effect and good instantaneous suction, so as to avoid liquid reverse osmosis backflow, increase The effect of flow conductivity and good stiffness

Active Publication Date: 2019-06-25
CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent has the characteristics of instant absorption and multiple absorption, it cannot realize the longitudinal flow guide along the product well, and the liquid coming down from the funnel-shaped guide layer will gather locally in the absorbing layer, hindering the flow of other materials in the absorbing layer. Exercising the absorption capacity of SAP (Super Absorbent Polymer) in the region
[0008] To sum up, the existing patents related to the diversion layer of disposable sanitary products have the problems of complex processing technology, difficulty in batch production, and good instantaneous suction but poor drainage.
In order to overcome the deficiencies of the existing common diversion layer, such as poor diversion performance, inability to store liquid, and the poor diversion effect, complicated process, and difficulty in mass production of the diversion layer mentioned in the above data, the present invention provides a Polylactic acid fiber diversion layer material prepared by polylactic acid fiber with diversion, moisture vapor permeability, temporary liquid storage, fast instantaneous suction speed, ecological antibacterial and biodegradable and preparation method thereof

Method used

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  • A kind of polylactic acid fiber guide layer material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) The antistatic agent solution is prepared according to the ratio of antistatic agent to water of 4-8:92-96. A kind of polylactic acid fiber is sprayed, and the amount of spraying of the antistatic agent solution is respectively 10-16% of the weight of the two kinds of polylactic acid fibers, and the two kinds of polylactic acid fibers after the spraying treatment are piled up for 2-4 hours , so that the moisture regain of the two polylactic acid fibers reaches 8-12%.

[0041] (2) Mix the two polylactic acid fibers according to the ratio of 20-35:65-80 between the polylactic acid fiber with a specification of 3D×51mm and the polylactic acid fiber with a specification of 6-9D×51-65mm, and then After loosening process and carding process, the grammage is 33-57.4g / m 2 The polylactic acid fiber web, the described opening process adopts three opening processes, the main process parameters of the described opening process are: the first opening beater speed is 520-610 r / m...

Embodiment 2

[0056] 1. Selection of fiber raw materials and workshop temperature and humidity

[0057] Two kinds of hydrophilic polylactic acid fibers with different thickness specifications of 3D×51mm, crimp of 10 / 25mm and 6D×51mm, and crimp of 20 / 25mm were selected respectively. Among them, the surface of the two kinds of polylactic acid fibers was hydrophilic and oily. The additive content is 0.5%, and the workshop temperature is controlled at 25°C and the humidity is 65% when producing the two polylactic acid fiber diversion layer materials.

[0058] 2. Preparation of polylactic acid fiber diversion layer material

[0059] 1) Pretreatment of polylactic acid fibers

[0060] Firstly, the antistatic agent solution is prepared according to the ratio of antistatic agent to water of 4:96, and then the antistatic agent solution is used to treat two kinds of polylactic acid fibers with specifications of 3D×51mm and 6-9D×51-65mm respectively. Spraying treatment, the spraying amount is 10% of ...

Embodiment 3

[0072] 1. Selection of fiber raw materials and workshop temperature and humidity

[0073] Two kinds of hydrophilic polylactic acid fibers with different thickness specifications of 3D×51mm, crimp of 11 / 25mm and 7D×65mm, and crimp of 21 / 25mm were selected respectively. Among them, the surface of the two kinds of polylactic acid fibers was hydrophilic and oily. The additive content is 1.2%, and the workshop temperature is controlled at 26°C and the humidity is 68% when producing the two polylactic acid fiber guide layers.

[0074] 2. Preparation of polylactic acid fiber diversion layer material

[0075] 1) Pretreatment of polylactic acid fiber

[0076] Firstly, the antistatic agent solution is prepared according to the ratio of antistatic agent to water of 6:94, and then the antistatic agent solution is used to treat two kinds of polylactic acid fibers with specifications of 3D×51mm and 6-9D×51-65mm respectively. Spraying treatment, the spraying amount is 14% of the weight of ...

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Abstract

The invention discloses a polylactic acid fiber diversion layer material and a preparing method thereof, and relates to the field of disposable hygienic products. The preparing method of the polylactic acid fiber diversion layer material comprises the steps of choosing polylactic acid fiber with different thicknesses and different crimpness, reasonably matching hydrophilic polylactic acid fiber and hydrophilic foam adhesive, reasonably exerting two technologies of hydrophilic foam adhesion and water repellency layer treatment, and well controlling fiber web hot air drying and contact type heat setting processing technological parameters. Therefore, the technical problems of the diversion layer material are solved that the diversion performance is poor, the liquid storage capability is low and the preparing technology is complicated, the effects are achieved that the prepared polylactic acid fiber diversion layer material has comprehensive performance of excellent diversion, moisture vapor transmission, instantaneous adsorption, good stiffness, an antibacterial activity, biodegradation and the like, and the functional requirements of the diversion layer material adopted by the disposable hygienic products for comprehensive diversion, instantaneous adsorption, obstruction and temporary storage for liquid are fully met.

Description

technical field [0001] The invention relates to the field of disposable sanitary products, in particular to a polylactic acid fiber diversion layer material and a preparation method thereof. Background technique [0002] With the accelerating pace of modern life, the use of disposable sanitary products is growing rapidly. According to the statistics of the Household Paper Professional Committee of China Paper Association [Jiang Manxia, ​​Sun Jing, Zhang Yulan, etc. China's disposable sanitary products industry 2014 Annual overview and market outlook [J]. Paper Information, 2015, (12): 25-29.] In 2014, the consumption of sanitary napkins in China has reached 77.64 billion pieces per year, the market penetration rate has reached 91.5%, and the pads are 37.2 billion Sheets, sanitary napkins and sanitary pads total factory sales of about 27.93 billion yuan; the market size is about 34.85 billion yuan (according to the retail markup rate of 40%), an increase of 7.6% over the prev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/435D04H1/587D04H1/4382D04H1/655D04H1/68D06N3/00
CPCD04H1/435D04H1/4382D04H1/587D04H1/655D04H1/68D06N3/0011D06N3/005D06N3/0077D06N3/0088D06N2209/142D06N2211/24
Inventor 钱程
Owner CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS
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