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Thin Absorbent Articles

An absorbent and article technology, applied in the fields of absorbent pads, medical science, clothing, etc., can solve the problems of easy distortion and high cost, and achieve the effect of not easy to distort

Active Publication Date: 2011-11-30
UNI CHARM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such an absorber is used, there is an advantage that the physical properties do not change greatly even in a wet state, but the cost becomes high (Japanese Patent Laid-Open No. 2003-291234 )
On the other hand, in the case of processing pulverized pulp obtained by defibrating and laminating pulp sheets into a thin absorbent body, although it is cheap, it does not bond the inside of the absorbent body or the surface of the absorbent body with an adhesive or the like. , prone to twisting when wet or when pressure is applied

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

[0053] figure 2 It is a plan view and A-A' line sectional view showing one embodiment of the sanitary napkin of the present invention. exist figure 2 Among them, the extruded grooves 6 are continuously arranged on the central region 5 of the absorber, and are arranged in the front and rear of the central region in a manner of being continuous with the central region in the longitudinal direction, and the point-like extruded parts 7 are arranged at the same interval It is arranged on substantially the entire surface of the absorber 4 . figure 2 The sanitary napkin of is manufactured as follows.

[0054] First, prepare the following parts.

[0055] (1) Absorber 4

[0056] Crushed pulp (basis weight 180g / m 2 ) and superabsorbent polymer (basis weight 30g / m 2 ) roughly evenly dispersed, with a paper towel (basis weight 15g / m 2 ) wrapping, and then punching so that the thickness of almost the entire surface becomes about 2mm. The length of the absorbent body after punchi...

Embodiment 2

[0068] image 3 It is a plan view and A-A' line sectional view showing one embodiment of the sanitary napkin of the present invention. exist image 3 Among them, the extruded grooves 6 are continuously arranged in the central region 5 of the absorber, and are arranged in the front and back of the central region so as to be continuous with the central region in the longitudinal direction. In addition, the dot-shaped pressed portions 7 are arranged on the substantially entire surface of the absorber 4 at intervals that are sparse in the vicinity of the center of the absorber and dense in the front and back regions of the vicinity of the center. exist Figure 4 shown in image 3 An example of a partially enlarged view of the A-A' line section of . exist Figure 4 In this case, the thickness (i.e., distance b) of the part having the point-like pressing part 7 near the center of the absorber is the same as the thickness (i.e., distance b') of the part having the point-like pre...

Embodiment 3

[0073] Figure 5 A top view showing one embodiment of the sanitary napkin of the present invention is shown. exist Figure 5 Among them, the extruded grooves 6 are continuously arranged on the central region 5 of the absorber, and are arranged in the front and rear of the central region in a continuous manner with the central region in the longitudinal direction, and the dot-shaped extruded parts 7 are arranged at the same intervals only It is arrange|positioned in the area|region of the front and rear near the center of an absorber.

[0074] The components used to manufacture the sanitary napkin shown in this embodiment are all the same as those in Embodiment 2.

[0075] Carry out heat embossing processing identically with embodiment 1, in such as Figure 5 Extruded grooves 6 and point-shaped extruded portions 7 are formed at the positions shown. The dotted squeezed portion is formed by compressing 50% to 99% of the thickness of the absorber. The width of the extruded gr...

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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PUM

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Abstract

A relatively thin absorptive article, appropriately fitting to the wearer's body, less likely to curl, and having excellent absorbing properties. An absorptive article having at least a liquid-permeable sheet, a liquid-impermeable sheet, and an absorbing body sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet. In order to integrate the liquid-permeable sheet and the absorbing body together, on the absorptive article on the skin contact side surface thereof, there are arranged compressed grooves at both the longitudinal ends of at least the center region of the absorbing body, and also point-like compressed sections arranged with a spacing between each compressed section.

Description

technical field [0001] The present invention relates to an absorbent article which is used in sanitary napkins, panty liners, incontinence pads, etc., is relatively thin, does not twist even when used for a long time, and has good absorbency. Background technique [0002] In general, sanitary napkins are provided with extruded grooves in order to control desired deformation and harden parts to prevent twisting (Japanese Patent Application Laid-Open No. 9-108262). [0003] On the other hand, thin sanitary napkins are preferred among sanitary napkins. In some thin sanitary napkins, leak-proof grooves are also arranged (Japanese Patent Application Laid-Open No. 2002-65741). The fit to the body is improved by configuring the anti-leakage groove, but in thin sanitary napkins with a total basis weight of materials and a small amount of materials used, the rigidity of the product becomes low, so there is a possibility that distortion will occur after long-term use (affected by De...

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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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15A61F13/49A61F13/53A61F13/539
CPCA61F13/4704A61F13/533A61F13/4756A61F13/551A61F13/539
Inventor 工藤淳桥野央
Owner UNI CHARM CORP
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