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A friction-resistant and anti-lint and dust-proof wet-pressed pulp tray and preparation method thereof

A pulp and wet pressing technology, applied in pulp raw material addition process, papermaking, paper and other directions, can solve problems such as affecting packaging effect, inconsistency of high-end brand environmental protection packaging concepts, polluting the internal space environment of packaging, etc. Effect

Active Publication Date: 2019-01-18
东莞市美之兰环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the fact that the existing wet-pressed pulp tray will vibrate and rub against the product during the packaging and transportation test and actual application, resulting in scratches and lint, which will cause the pulp tray to dye the packaged goods, pollute the internal space environment of the packaging, and high-end brand environmental protection packaging The concept of the problem is not coordinated, which seriously affects the packaging effect and other problems. The invention provides a wet-pressed pulp tray which is resistant to friction and prevents lint and dust and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides a wet-pressed pulp tray and a preparation method thereof, the preparation method comprising the following steps:

[0058] (1) The raw material and clear water are sequentially subjected to beating, pulping and molding treatment according to the solid-to-liquid ratio of 2:1000 to obtain wet embryos;

[0059] (2) After the wet embryo obtained in step (1) is dried, an aqueous solution of a water-based oil mixture with a concentration of 50wt% is artificially sprayed to form a protective coating, wherein the water-based oil mixture is mainly composed of synthetic resin, acrylic acid emulsion, and wax additives. , absolute ethanol and water, wherein the content of synthetic resin is 45wt%, the content of acrylic acid emulsion is 40wt%, the content of absolute ethanol is 3wt%, the content of wax additive is 4wt%, and the balance is water; The spray nozzle and the surface to be sprayed are at 90°, the uniformity of the protective coating obtained by sp...

Embodiment 2

[0062] This embodiment provides a wet-pressed pulp tray and a preparation method thereof, the preparation method comprising the following steps:

[0063] (1) The raw material and circulating water are sequentially subjected to beating, pulping and molding treatment according to the solid-to-liquid ratio of 1.5:1000. During the pulping process, toner and auxiliary agents are added, and the auxiliary agent is a binder to obtain a wet embryo;

[0064] (2) the aqueous solution of the water-based oil mixture of 40wt% is formed protective coating through mechanical spraying concentration through the wet embryo that step (1) makes, and wherein, described water-based oil mixture is mainly made of synthetic resin, acrylic acid emulsion, wax additive, no Water ethanol and water and other substances are mixed and deployed; the content of synthetic resin is 40wt%, the content of acrylic emulsion is 38wt%, the content of absolute ethanol is 2wt%, the content of wax additive is 3wt%, and the...

Embodiment 3

[0067] This embodiment provides a wet-pressed pulp tray and a preparation method thereof, the preparation method comprising the following steps:

[0068] (1) The raw material and circulating water are sequentially subjected to beating, pulping and molding treatment according to the solid-to-liquid ratio of 3:1000. During the pulping process, toner and auxiliary agents are added, and the auxiliary agent is a foaming agent to obtain wet embryos;

[0069] (2) the aqueous solution of water-based varnish of 60wt% is formed protective coating through mechanical spraying concentration on the wet embryo that step (1) makes, wherein, described water-based oil mixture is mainly made of synthetic resin, acrylic acid emulsion, wax additive, without Water ethanol and water and other materials are mixed and deployed; the content of synthetic resin is 50wt%, the content of acrylic emulsion is 45wt%, the content of absolute ethanol is 5wt%, the content of wax additive is 6wt%, and the balance ...

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Abstract

The invention provides a friction, hair-falling and dust-falling resistant wet pressure paper pulp holder and a production method thereof. The method comprises the following steps: 1, sequentially carrying out beating, pulp formation and molding treatment on a raw material and water to produce a wet blank; 2, spraying a protection coating on the wet blank; and 3, carrying out hot pressing and subsequent treatment on the protection coating sprayed wet blank to obtain the finished wet pressure paper pulp holder. A spraying technology is carried out in the production process of the wet pressure paper pulp holder to form the smooth and wear-resistant protection coating on the surface of the wet pressure paper pulp holder, so scratches, hair-falling and other phenomena of the paper pulp are avoided in the packaging transportation test and practical transportation process, the problem of pollution of dusts caused by friction and disengagement of plant fibers from a paper pulp holder main body to packaged internal space environment is solved, and fault, damage or discard risks caused by invasion of the dusts and the plant fibers are effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of pulp technology, and relates to a wet-pressed pulp tray and a preparation method thereof, in particular to a wet-pressed pulp tray which is resistant to friction and prevents lint and dust from falling off, and a preparation method thereof. Background technique [0002] Pulp tray, also known as pulp molding, is made of carton scraps, newsprint and white pure wood pulp as raw materials, after pulping and blending into a certain proportion of slurry, on the customized CNC mold according to product design, after vacuum Environmentally friendly paper products of different types and uses formed by adsorption molding and post-drying. [0003] Through decades of development, pulp trays have been widely used in packaging applications, and the technology is relatively mature, including dry-pressed pulp trays and wet-pressed pulp trays. The dry-pressed pulp tray itself is relatively rough. In terms of packaging ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/50D21J5/00D21H19/18D21H19/20
CPCD21H19/18D21H19/20D21H23/50D21J5/00
Inventor 钟同苏王治军
Owner 东莞市美之兰环保科技有限公司
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