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A kind of manufacturing process of colored water-absorbing backing paper

A manufacturing process and backing paper technology, which is applied in special paper, paper, papermaking, etc., can solve the problems of expensive imported colored water-absorbing backing paper, the inability to quickly spread liquid around, and failure to meet market demand, etc., to increase wet tensile strength Strength, maintaining flatness, and increasing the effect of bonding force

Active Publication Date: 2016-03-16
WEIFANG HENGLIAN LANCEL HYGIENE PROD LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the domestically produced colored water-absorbent backing paper adopts surface dyeing or dip dyeing process, and the products still have defects. First, the wet tensile strength is low, and it is easy to break after absorbing liquid. Second, the absorption performance is poor, and the liquid cannot quickly flow around after absorbing liquid. Diffusion, the third is the phenomenon of discoloration, which was positive after water and n-hexane decolorization test
Imported color absorbent backing paper is expensive, far from meeting market demand

Method used

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  • A kind of manufacturing process of colored water-absorbing backing paper
  • A kind of manufacturing process of colored water-absorbing backing paper
  • A kind of manufacturing process of colored water-absorbing backing paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A manufacturing process of colored water-absorbent backing paper, including wood pulp disintegration, beating, pulping, color matching, screening and purification, net forming, vacuum dehydration, press dehydration, drying cylinder drying, scraper wrinkling, coiling, rewinding and slitting , Packaging made finished products. The detailed steps are as follows:

[0025] Wood pulp disintegration: First, mix the long-fiber wood pulp with a fiber length of 2.5mm and the short-fiber wood pulp with a fiber length of 0.7mm according to the ratio of 75:25 by weight, and add a concentration of 12.5%. The amount of paper is 0.35kg of fiber modifying enzyme, and then the fiber is disintegrated by a hydropulper.

[0026] Beating: Then the fibers are beaten through a beater with a beating degree of 23oSR, and finally the beating concentration is controlled at 3.2% to obtain pulp.

[0027] Pulping: Add biopolymer to the prepared pulp at a speed of 3000L / min and stir until uniform. A...

Embodiment 2

[0039] A manufacturing process of colored water-absorbent backing paper, including wood pulp disintegration, beating, pulping, color matching, screening and purification, net forming, vacuum dehydration, press dehydration, drying cylinder drying, scraper wrinkling, coiling, rewinding and slitting , Packaging made finished products. The detailed steps are as follows:

[0040] Wood pulp disintegration: First, mix the long-fiber wood pulp with a fiber length of 2.6mm and the short-fiber wood pulp with a fiber length of 0.8mm according to the ratio of 78:22 by weight, and add a concentration of 12%. The paper weight is 0.4kg of fiber modifying enzymes, and then the fibers are broken down by a hydropulper.

[0041] Beating: Then the fibers are beaten through a beater with a beating degree of 25oSR, and finally the beating concentration is controlled at 3.0% to obtain pulp.

[0042] Pulping: Add biopolymer to the prepared pulp at a speed of 3000L / min and stir until uniform. After ...

Embodiment 3

[0054] A manufacturing process of colored water-absorbent backing paper, including wood pulp disintegration, beating, pulping, color matching, screening and purification, net forming, vacuum dehydration, press dehydration, drying cylinder drying, scraper wrinkling, coiling, rewinding and slitting , Packaging made finished products. The detailed steps are as follows:

[0055] Wood pulp disintegration: First, mix the long-fiber wood pulp with a fiber length of 2.7mm and the short-fiber wood pulp with a fiber length of 0.9mm according to the ratio of 80:20 by weight, and add a concentration of 13%. 0.5kg of fiber-modifying enzyme was used, and then the fiber was disintegrated by a hydropulper.

[0056] Beating: Then the fibers are beaten through a beater with a beating degree of 26oSR, and finally the beating concentration is controlled at 3.5% to obtain pulp.

[0057] Pulping: Add biopolymer to the prepared pulp at a speed of 3000L / min and stir until uniform. After an interval...

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Abstract

The invention provides a color water-absorbing interleaving paper production process which comprises the steps of wood pulp degradation in size, beating, proportioning, color matching, screening and purifying, charging on a net and forming, vacuum dehydration, squeezing dehydration, drying in a drying cylinder, wrinkling by a scraper, winding and rewinding and slitting and packaging to obtain a finished product, wherein in the step of wood pulp degradation in size, the long-fiber wood pulp with fiber length of 2.5-2.7mm and short-fiber wood pulp with fiber length of 0.7-0.9mm are subjected to fiber degradation in size at a weight ratio of (75-80):(25-20); in the wood pulp degradation in size, 0.3-0.5kg of 12-13% fiber modifying enzyme is added for each ton of paper; in proportioning, 5-8kg of 25-30% biopolymer, 10-15kg of 24-26%wet strength agent and 1-3kg of 10-15% color fixing agent are added for each ton of paper and uniformly stirred; and in the process of charging on a net and forming, a dispersant solution is added, and the dosage of the dispersant is 0.4-0.8kg per ton. The process provided by the invention has the advantages of high wet tensile strength and good absorbability and no fading.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a direction of colored water-absorbing paper, in particular to a manufacturing process of colored water-absorbing backing paper. Background technique [0002] As we all know, with the development of social economy and the continuous improvement of people's material and cultural living standards, the demand for various health care products is expanding, such as baby diapers, pull-up pants, adult diapers, pet sanitary pads and medical sanitary mattresses, etc. . In the production process of sanitary care products, water-absorbent paper is used to cover fluff pulp and polymer water-absorbent resin. Today, in the pursuit of personalization, water-absorbent paper has also changed the original single white face, and colored water-absorbent paper has emerged as the times require. [0003] At present, most of the domestically produced colored water-absorbent backing paper adopts sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/00D21C3/22D21D1/02
Inventor 栾勇赵学杰陈子明张玉娟于丽霞
Owner WEIFANG HENGLIAN LANCEL HYGIENE PROD LTD
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