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Production method of laminated paper

A production method and technology of laminated paper, applied in the direction of layered products, chemical instruments and methods, paper/cardboard layered products, etc., can solve the problem that the weight of the composite paper affects the strength performance of the composite paper, and the strength and water absorption performance are not very good Balance and low lamination strength, etc., to achieve the effect of toughness, good water absorption, and slippery hand feeling

Inactive Publication Date: 2015-12-02
丽水保舒康无纺布有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lamination strength of the existing composite paper is low, the powder will fall off by layering, the hand feel is relatively rough, and the strength and water absorption performance cannot be well balanced; and the grammage of the composite paper also largely affects the strength and Various performances in use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Decompose the wood fiber in the pulper to make a slurry with a concentration of 6% (plus or minus 0.5%). The slurry enters the former of the double cylinder forming wire through the pulp feed tank, and then passes through the homogenizer. The plate fully disperses the slurry, and then evenly distributes the dispersed slurry in the forming area between the two cylinders, superimposes the slurry layers on the surface of the two cylinders, and finally filters out the water to a room with a humidity of 85%. Wood pulp paper; the wood pulp paper is closely bonded to the non-woven fabric with a quantitative 80g / m2, and interplanted and entangled by a spunlace process, the spunlace process is 5 drainage needles, and the pressure is 6-14Mpa; then , the wood pulp cloth is removed with a vacuum suction box until the humidity is 60%; the water-based solvent is used for spraying, the concentration of the first spraying liquid is 10%, and the concentration of the spraying liquid is 10...

Embodiment 2

[0023] The cotton fiber is disintegrated in the pulper to make a slurry with a concentration of 8% (plus or minus 0.5%). The slurry enters the former of the double cylinder forming wire through the slurry feed tank, and then passes through the homogenizer. The plate fully disperses the slurry, and then evenly distributes the dispersed slurry in the forming area between the two cylinders, superimposes the slurry layers on the surface of the two cylinders, and finally filters out the water to a room with a humidity of 82%. Wood pulp paper; the laminated paper is a three-layer composite, and the wood pulp cloth compounding step is to first make the wood pulp paper with a humidity of 82% through a pressing roller and a quantitative 100g / m2 non-woven fabric closely, and let it stand for later use . Then another layer of wood pulp paper with a humidity of 82% is compounded to the surface of the above-mentioned non-woven fabric through the second spunlace, wherein the humidity of the...

Embodiment 3

[0025] The cotton fiber is disintegrated in the pulper to make a slurry with a concentration of 7% (plus or minus 0.5%). The slurry enters the former of the double cylinder forming wire through the slurry inlet tank, and then passes through the homogenizer. The plate fully disperses the slurry, and then evenly distributes the dispersed slurry in the forming area between the two cylinders, superimposes the slurry layers on the surface of the two cylinders, and finally filters out the water to a room with a humidity of 80%. Wood pulp paper; the laminated paper is a three-layer composite wood pulp cloth. The composite step is to closely bond the wood pulp paper with a humidity of 80% to the quantitative 60g / m2 side of the non-woven fabric, and then compound it through the third spunlace. The third spunlace process is double drainage needles, pressure 9MP; dry and ready for use. Then use wood pulp paper with a humidity of 80% and the other side of the composite non-woven fabric to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a production method of laminated paper. The production method of the laminated paper comprises the following steps: carrying out wet process web forming on wood pulp, namely repulping plant fibers in a pulper for obtaining slurry with the concentration of 6-8%, and carrying out double cylinder moulding, so that wood pulp paper with humidity of 80-86% is obtained; compounding the wood pulp paper, namely implanting and entangling the wood pulp paper and quantitative 8-150g / m<2> non-woven fabric each other by adopting a spunlace process, so that wood pulp fabric is obtained, wherein 2-7 needles are adopted during spunlace, and pressure is 6-14MPa; dehydrating, namely removing moisture of the compounded wood pulp fabric by virtue of a vacuum water sucking box until humidity is 50-70%; spraying, namely spraying the surface of the dehydrated wool pulp fabric; and drying, namely drying with the sprayed wood pulp fabric by virtue of a drying oven provided with multiple drying cylinders, so that the laminated paper is obtained.

Description

technical field [0001] This invention relates to a method of producing laminated paper. Background technique [0002] The strength of the existing composite paper becomes worse after absorbing water, and the wet strength of the paper is usually improved by lamination, but the overall water absorption decreases after correspondingly laminating other materials. Generally, facial paper is combined with non-woven non-woven fabric to obtain composite paper. However, the lamination strength of the existing composite paper is low, the powder will fall off by layering, the hand feel is relatively rough, and the strength and water absorption performance cannot be well balanced; and the grammage of the composite paper also largely affects the strength and Various performances in use. Therefore, it is of great significance to explore the production process that can optimize the various properties of the above-mentioned composite paper to improve the market competitiveness of the comp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B32B37/00B32B29/02
CPCB32B37/00B32B29/02
Inventor 方萝成孙理臻
Owner 丽水保舒康无纺布有限公司
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