Papermaking and composite processing technology for composite liquid absorbing material and equipment thereof

Abstract

The invention discloses a papermaking and composite processing technology of a composite liquid absorbing material. The technology comprises the steps of composite layer upper paper papermaking, composite layer lower paper papermaking, compounding and rewinding processing. The invention further discloses papermaking and composite processing equipment for the composite liquid absorbing material, the papermaking and composite processing equipment comprises a first rotary screen forming mechanism, a second rotary screen forming mechanism, a drying cylinder drying mechanism, a composite drying cylinder drying mechanism and a novel adjustable tension rewinding mechanism, and the first rotary screen forming mechanism and the second rotary screen forming mechanism are symmetrically arranged and are opposite in rotating direction; a squeezing composite mechanism is installed under the composite drying cylinder drying mechanism, and a powder scattering mechanism is installed under the squeezingcomposite mechanism; the process for adding the high-molecular water-absorbent resin is simple and convenient to operate, and the total adding amount is easy to control; the water absorption speed, the water locking performance and the comfort level of the liquid absorption material are improved; the water absorption rate is increased to 50 times or above, and the diffusion and permeation width can be adjusted as required; continuous production is realized; and powder spraying process is uniform.

Description

technical field [0001] The invention relates to a papermaking and composite processing technology and equipment, in particular to a papermaking and composite processing technology and equipment for composite liquid-absorbing materials, and belongs to the technical field of liquid-absorbing materials. Background technique [0002] Composite absorbent materials are extremely useful in the preparation of absorbent articles which absorb fluids and retain washing fluids. Such as women's sanitary napkins, paper diapers, disposable diapers in sanitary and medical supplies, fresh-keeping agents and vegetable moisture preservation agents for agriculture and forestry, it can also be used as sanitary liners, such as breastfeeding liners, and children's beds Pads, mattresses for incontinent patients, hemorrhoid patients and surgical pads. [0003] Composite liquid-absorbent materials currently on the market generally have a three-layer structure, namely the surface layer, core layer, a...

AI Technical Summary

Problems solved by technology

[0010] (1) The process operation when adding polymer water-absorbing resin is not easy, which is not conducive to controlling the total amount of polymer water-absorbing resin;

[0011] (2) Liquid-absorbing materials have slow water absorption speed, poor water-locking performance, poor softness, and poor comfort;

[0012] (3) The water absorption rate of the liquid-absorbent material needs to be improved, and the expansion width is not easy to adjust according to the demand;

[0013] (4) The processing equipment for liquid-absorbing materials cannot achieve continuous production, the production efficiency needs to be improved, and there are many paper breaks, resulting in unstable final product quality;

[0014] (5) The material spreading device for polymer water-absorbent resin, the material spreading process is likely to cause uneven thickness of the polymer particle layer, thick in the middle and thin on both sides, which affects the composite effect

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