Online composite process system and composite core product

Abstract

The invention discloses an online composite process system and a composite core product. The online composite process system comprises a composite drum device, a first semifinished product and a highmolecular material are composited at a first composite position of the composite drum device, a second semifinished product is formed after compositing, and a high molecular material supply device isarranged at a material receiving position of the composite drum device; a clamping and pressing roller is arranged at a downstream workstation of a second composite position of the composite drum device, a third semifinished product is arranged between the clamping and pressing roller and the composite drum device, and a coating device is arranged at a downstream workstation of the clamping and pressing roller and coats the third semifinished product to form a composite core. The composite core product comprises coating nonwoven cloth, fluffy nonwoven cloth, a high molecular material and a covering layer sequentially from bottom layer to surface layer. The online composite process system is high in production efficiency, negative pressure in the composite drum device can be utilized to suck macromolecule granules into the fluffy nonwoven cloth to be sufficiently mixed with the same, and product thickness is lowered effectively; the product prepared by the system is free of faultage, humping and hardening when expanding and high in quality and wearing comfort.

Description

technical field [0001] The invention belongs to the technical field of sanitary product manufacturing equipment, in particular to the fields of sanitary napkins, paper diapers, pull-up pants, sanitary pants, etc., and specifically relates to an online composite process system and a composite core product. Background technique [0002] In the prior art, the composite absorbent core without fluff pulp is generally a layered structure, and its structure is mainly composed of dust-free paper, polymer water-absorbing resin (granular, referred to as polymer or SAP or SAP) from top to bottom. Polymer material), non-woven fabric, polymer and dust-free paper, the polymer is placed on the upper and lower sides of the non-woven fabric in the middle, and the materials are bonded by hot melt adhesive. Since polymers can absorb liquids hundreds or even thousands of times their own weight, and firmly lock the liquids after absorbing them, most traditional composite cores are double-sided p...

AI Technical Summary

Problems solved by technology

Since polymers can absorb liquids hundreds or even thousands of times their own weight, and firmly lock the liquids after absorbing them, most traditional composite cores are double-sided polymer structures. The structure is relatively complex

Since the composite core has a layered structure, although it does not expand as a whole after absorbing liquid, it is easy to break and delaminate between the non-woven fabric and the polymer after absorbing a large amount of liquid, and the composite core after multiple liquid absorption The absorption speed of the body will slow down, side leakage will occur, and problems such as swelling and hardening will easily occur, which will cause discomfort to the user and even lead to compression or friction of the parts in contact with the body

[0003] The existing composite core body also uses fluffy non-woven fabric as the middle non-woven fabric, but its bulking effect is usually not ideal, so that the amount of polymer entering is small, and the diffusion speed is slow; Pore ​​utilization to accommodate more polymers, then the core structure can be simplified

In the process of making the composite core product, during the transportation of the fluffy non-woven fabric and the compounding process with the polymer, due to the characteristics of the material itself, it is difficult to avoid the problem of tension drafting, resulting in narrowing of the width of the fluffy non-woven fabric. Destroy the porosity structure of the fluffy non-woven fabric itself, and affect the entry of polymers into the fluffy non-woven fabric

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