Absorbent article

一种吸收性、物品的技术，应用在吸收垫、医药科学、卫生巾等方向，能够解决倒流量增多、易保持体液、后漏、侧漏等问题，达到减少倒流量的效果

Active Publication Date: 2019-01-04
DAIO PAPER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the invention described in the above-mentioned Patent Document 1, since the skin-contacting surface of the topsheet is used as a waterproof layer, body fluids may be transferred on the surface of the topsheet when sleeping on the back or sideways, causing back leakage. ,F
In addition, since the non-skin-contacting surface of the top sheet is used as a hydrophilic layer, there is concern that bodily fluids are likely to be retained in the hydrophilic layer, making it difficult to transfer bodily fluids to the absorber, and increasing the amount of backflow.
In addition, in the invention described in the above-mentioned Patent Document 2, since both the first layer and the second layer of the topsheet are hydrophilic, bodily fluids may be easily retained in the topsheet, and the bodily fluids may be difficult to transfer to the absorber, and the flow rate may be reversed. increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] Using the sanitary napkin 1 in which the upper nonwoven fabric 20 has hydrophilic properties and the lower nonwoven fabric 21 has water repellency, and the existing sanitary sanitary napkin in which both the upper nonwoven fabric and the lower nonwoven fabric have hydrophilic properties are used. Towel, a comparative test of reverse flow was carried out. In the reverse flow test, when 3cc of artificial menstrual blood at 37°C was injected 5 times at three-minute intervals, one minute after the fifth injection of artificial menstrual blood, a filter paper with a previously measured weight was placed and loaded with 5g / cm 2 Load the heavy object for five minutes. After loading, measure the weight of the filter paper again, and calculate the flow rate (g) according to the weight difference before and after loading.

[0060] In addition, for the aforementioned artificial menstrual blood, 100 ml of glycerin, 4.6 g of CMC (sodium carboxymethylcellulose), 875 ml of purified wa...

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PUM

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Abstract

A liquid permeable surface sheet (3) comprises an upper layer non-woven fabric (20) which is provided at the skin side, and which is hydrophilic, and a lower layer non-woven fabric (21) which is provided at the non-skin side, and which is water repellent. A plurality of openings (22) are formed which pass through the upper layer non-woven fabric and the lower layer non-woven fabric. Accordingly, body fluid transfers smoothly through the openings to an absorbent body. The upper layer non-woven fabric at the skin side is made to be hydrophilic such that body fluid readily permeates therethrough.The lower layer non-woven fabric at the non-skin side is made to be water repellent such that the body fluid which has passed through is not readily absorbed again. Accordingly, the amount of returning body fluid can be reduced.

Description

technical field [0001] The present invention mainly relates to absorbent articles used in sanitary napkins, secretion pads, incontinence pads, cosmetic appliances, etc., and specifically relates to a liquid-permeable topsheet made of a non-woven fabric having a double structure. absorbent article. Background technique [0002] Conventionally, as absorbent articles such as panty liners, sanitary napkins, and incontinence pads, absorbent articles are known in which a polyethylene sheet or a polyethylene sheet is laminated with a liquid-impermeable back sheet such as a non-woven fabric and a non-woven fabric. Alternatively, an absorber made of cotton pulp or the like is interposed between liquid-permeable top sheets such as liquid-permeable plastic sheets. [0003] In particular, in so-called nighttime absorbent articles worn during bedtime, the above-mentioned liquid-permeable top sheet is required to have an absorption speed performance that quickly transfers body fluids suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/512A61F13/537
CPCA61F13/5116A61F13/5125A61F13/513A61F2013/51178A61F13/4704A61F13/511A61F13/53747A61F13/539A61F2013/4708A61F2013/530145A61F2013/53782A61F2013/53908
Inventor 铃木阳子
Owner DAIO PAPER CORP
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