Apparatus and method for manufacturing an absorbent core

An absorbent core and equipment technology, applied in the field of manufacturing absorbent cores, can solve the problems of blocking ventilation devices and sucking out of the core, etc., and achieves the effects of reducing air flow, reducing losses, and reducing the shutdown of cleaning machines

Active Publication Date: 2007-02-14
ESSITY HYGIENE & HEALTH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This could allow the SAP particles to penetrate deeper into the underlying first pulp fiber layer and even get sucked out of the core and block the breather, or escape into the second suction box 5 and cause problems with the vacuum generating equipment

Method used

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  • Apparatus and method for manufacturing an absorbent core
  • Apparatus and method for manufacturing an absorbent core

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Embodiment Construction

[0033] Several embodiments of the invention will be presented below with the support of the included figures.

[0034] exist figure 2 In, there is disclosed an apparatus for manufacturing an absorbent core for a liquid-absorbent product according to aspects of the present invention. From a defibration unit (not shown), the pulp fibers 11 are conveyed by means of air flow into forming chambers 12a, 12b here called air ducts. A forming wheel 13 for forming the core of an absorbent product is arranged to rotate under the downstream opening of the air ducts 12a, 12b and is in sealing connection with said air ducts. The forming wheel 13 rotates in the direction indicated by the arrow 13a. In the embodiment according to the figure, the device is provided with two air ducts 12a, 12b. Facing each duct opening, a non-rotating first suction box 14 is arranged inside the forming wheel 13 . Breathing means are arranged along the circumference of the forming wheel 13 to allow air from...

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PUM

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Abstract

An apparatus and a method for manufacturing an absorbent core for an absorbent product containing a first material and a second material dispersed throughout at least a portion of said first material, comprising a rotating forming wheel (13) for producing said absorbent core in a mold provided on its circumferential surface and said forming wheel (13) having a rotating air pervious belt (21) along at least a part of said circumferential surface for keeping fibres and particles of said formed layer or layers in place on the wheel (13).

Description

technical field [0001] The present invention relates to a method and apparatus for making an absorbent core comprising particles of a second material, such as superabsorbent polymer (SAP), dispersed within a first absorbent material. More specifically, the present invention relates to the manufacture of absorbent cores with the aim of reducing the loss of secondary material during manufacture. Background technique [0002] Absorbent products such as diapers, toilet training pants, sanitary napkins, incontinence pads and the like contain an absorbent core which typically comprises soft, bulky materials such as comminuted wood pulp fibers. Various auxiliary materials are often included in the absorbent fluff, such as particles of superabsorbent polymer (SAP), heat-activated bonding fibers or odor-absorbing materials. Superabsorbent materials are polymers that have the ability to absorb many times their weight in water and body fluids. The superabsorbent material is either mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15D21H27/30D04H1/72D04H1/70D04H1/732D21H
CPCA61F13/15626D04H1/732D04H1/70
Inventor G·福什布林G·拉松
Owner ESSITY HYGIENE & HEALTH AB
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