Paper diaper core, paper diaper core manufacturing technology and viscose spraying technology

Abstract

The invention discloses a paper diaper core, a paper diaper core manufacturing technology and a viscose spraying technology. The paper diaper core comprises an upper wrapping layer, a lower wrapping layer, an absorbing core layer and a viscose layer; the viscose layer is located between the upper wrapping layer and the lower wrapping layer and comprises multiple sets of viscose bodies for bonding the upper wrapping layer with the lower wrapping layer, the viscose bodies are distributed in the width direction or the length direction of the upper wrapping layer and the lower wrapping layers at intervals, and an independent containing space is formed between every two adjacent viscose bodies; the absorbing core layer comprises a plurality of absorbing cores. The viscose spraying technology comprises the steps that a layer to be subjected to viscose spraying is driven by a first conveying device to continuously and forwards move in the direction of a first viscose spraying device, and multiple fifth nozzles, arranged in the width direction of the layer to be subjected to viscose spraying in parallel, of the first viscose spraying device are controlled to spray viscose to a surface to be subjected to viscose spraying of the layer to be subjected to viscose spraying in the continuous and forward moving process, so that the viscose bodies which are uniformly distributed in the width direction of the paper diaper core at intervals are formed, wherein a first preset spacing distance is formed between every two fifth nozzles.

Description

technical field [0001] The invention relates to the field of sanitary products, in particular to a diaper core body, a manufacturing process for the diaper core body and a glue spraying process. Background technique [0002] Diapers are a commonly used sanitary product. Generally speaking, diapers are composed of three main parts: cover layer, absorbent core and base fabric. The surface coating layer can also be called a coating layer or a water-permeable surface layer. The coating layer is close to the user's body, which can promote the rapid penetration of urine and effectively prevent back seepage, so that the surface layer of the diaper can be kept dry. At present, the covering layer of diapers in the domestic market is basically a non-woven surface layer. The breathable non-woven fabric can improve the air permeability inside the diaper, and the water vapor can circulate outside the diaper, and the moisture and heat can be discharged in time, effectively reducing the a...

AI Technical Summary

Problems solved by technology

In the prior art, in the manufacturing process of the absorbent core, the spraying method of the upper adhesive layer is a full spray method, that is, the surface of the absorbent core is fully sprayed by a glue spraying tool. This full spray process cannot Spray evenly on the surface of the absorbent core, there may be cases where the spray glue is thicker in some positions, and thinner in some positions, etc. The spray glue in this way will greatly affect the height below the upper adhesive layer. The water absorption work of water-absorbent resin, even if more super-absorbent resin is added or all the absorbent core layer is replaced with super-absorbent resin, the liquid cannot penetrate into the absorbent core from the water-permeable surface layer very quickly; at the same time, the method of full spray also increases The amount of glue is reduced, which is not conducive to saving costs

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