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Device for manufacturing absorbing body and method of manufacturing gas permeable member

A technology for manufacturing equipment and absorbers, applied to absorbent pads, chemical instruments and methods, clothing, etc., can solve problems such as fatigue fractures, and achieve the effect of deformation suppression

Active Publication Date: 2012-02-15
UNI CHARM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If external forces in directions opposite to each other repeatedly act on the textile screen cloth 50, the textile screen cloth 50 may be prone to fatigue fracture

Method used

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  • Device for manufacturing absorbing body and method of manufacturing gas permeable member
  • Device for manufacturing absorbing body and method of manufacturing gas permeable member
  • Device for manufacturing absorbing body and method of manufacturing gas permeable member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0073]

[0074] figure 1 is a sectional view of an example of the manufacturing apparatus 10 of the absorbent body 1 , here, the apparatus 10 is sectioned at its center along its longitudinal direction.

[0075] This absorbent body 1 manufacturing apparatus 10 is a so-called fiber depositing apparatus in which the absorbent body 1 is formed by depositing pulp fibers 2 as a liquid absorbent material. The main structure of the manufacturing apparatus 10 includes, for example: (1) a rotating drum 20 that continuously rotates around a horizontal axis C20 in one direction (circumferential direction Dc, such as a clockwise direction); 20a distributes and supplies a supply pipe 31 of mixed air 3 containing pulp fibers 2 (corresponding to air), the supply port 31a is provided at a predetermined position (corresponding to the first position) on the circumferential direction Dc of the drum 20; and (3 ) Adsorption transfer device 41 provided downstream of the supply pipe 31 in the cir...

no. 1 approach

[0097] Figures 5A to 5C A first embodiment of the air-permeable member 50 and the reinforcement member 60 is illustrated. Figure 5A is a plan view of the air-permeable member 50 whose illustration is partially omitted; Figure 5B and 5C respectively in Figure 5A B-B cross-section and C-C cross-section taken in .

[0098] The air-permeable member 50 according to the first embodiment is a mesh formed by weaving third threads 53 and fourth threads 54 crossing each other, more specifically, a plain weave cloth. Its mesh serves as the aforementioned air vent 51 . On the other hand, the reinforcing member 60 is a plain weave cloth formed by weaving the first wire 61 and the second wire 62 having a diameter larger than that of the third wire 53 and the fourth wire 54 . In this example, both woven screen cloths are made of metal wire such as stainless steel wire (SUS304 in this example), but non-metal such as resin, etc. can also be used if the plate has suitable rigidity and ...

no. 2 approach

[0121] Figures 8A to 8C A second embodiment of the air-permeable member 50a and the reinforcement member 60 is illustrated. Figure 8A is a plan view of the ventilation member 50a whose illustration is partially omitted; Figure 8B and 8C respectively in Figure 8A B-B cross-section and C-C cross-section taken in . exist Figure 8B and 8C In the figure, the ventilation hole 51a of the ventilation member 50a is omitted to avoid the complexity of these drawings.

[0122] In the first embodiment, a woven mesh is used as the air-permeable member 50 . This second embodiment differs therefrom in using a plate-shaped member, but is basically the same in other points. Therefore, the same reference numerals are used for the same configurations, and descriptions thereof are omitted.

[0123] The air-permeable member 50a is a metal plate such as a stainless steel plate (SUS304 in this example) having a predetermined thickness (0.3 mm thick here). A non-metallic plate such as a ...

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Abstract

A device (10) for manufacturing an absorbing body (1) relating to an absorptive article, the device (10) manufacturing the absorbing body (1) by causing gas (3) which contains a liquid absorptive raw material (2) to pass through a gas permeable member (50), which covers the opening (27a) of a mold member (27), in the thickness direction thereof to layer the liquid absorptive raw material (2) on the gas permeable member (50). The device (10) has a reinforcing member (60) superposed on the gas permeable member (50) in the thickness direction to reinforce the gas permeable member (50). The reinforcing member (60) is a meshed body formed by first wires (61) and second wires (62) in such a manner that each of the first wires (61) and each of the second wires (62) intersect each other at the intersection (CP60) at which the first and second wires (61, 62) are connected together. At the intersections (CP60), the reinforcing member (60) is joined to the gas permeable member (50).

Description

technical field [0001] The present invention relates to a manufacturing apparatus of an absorbent body related to absorbent articles such as disposable diapers, and a method of manufacturing a breathable member used by the manufacturing apparatus to form an absorbent body. Background technique [0002] Disposable diapers, sanitary napkins, etc. are examples of absorbent articles used to absorb exudates such as urine or menstrual blood. These absorbent articles include absorbent bodies formed by forming pulp fibers (an example of a liquid-absorbent material) into a predetermined shape. [0003] Absorbent body 1 is made of fiber deposition equipment 10 in the production line (see figure 1 )form. The fiber deposition apparatus 10 comprises a rotating drum 20 . By rotating the rotary drum 20 in the circumferential direction Dc, the mixed air 3 carrying the pulp fibers 2 therein is supplied to the outer circumferential surface 20 a of the drum, and the pulp fibers 2 are deposi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15A61F13/472A61F13/49
CPCA61F13/15626A61F13/15658A61F13/53B32B37/14
Inventor 石川雅彦
Owner UNI CHARM CORP
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