Paper pulp for paper pulp molding fruit tray product

A fruit tray and pulp molding technology, which is applied in the pulp field of pulp molded product fruit trays, can solve problems affecting the formability of pulp molded products, achieve good adhesion performance, reduce wood pulp ratio, and reduce pulp cost effect

Inactive Publication Date: 2011-09-14
HANGZHOU LVBAO PAPER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additives greatly affect the formability of pulp molded products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The raw materials of the pulp of the pulp molded product fruit tray include raw wood pulp board or waste paper, alkyl ketene polymer, corn starch and dehydration synergist, wherein the dehydration synergist includes NaOH, H 2 o 2 And borax, in terms of mass percentage content, the pulp formula of pulp molded product fruit tray is: 92% of raw wood pulp board or waste paper, 1.5% of alkyl ketene polymer, 5.8% of cornstarch, and 0.18% of NaOH , H 2 o 2 0.17% for borax and 0.35% for borax.

Embodiment 2

[0016] The raw materials of the pulp of the pulp molded product fruit tray include raw wood pulp board or waste paper, alkyl ketene polymer, corn starch and dehydration synergist, wherein the dehydration synergist includes NaOH, H 2 o 2 And borax, in terms of mass percentage content, the pulp formula of pulp molded product fruit tray is: 91% of raw wood pulp board or waste paper, 2% of alkyl ketene polymer, 6.3% of corn starch, and 0.17% of NaOH , H 2 o 2 It is 0.19% and borax is 0.34%.

Embodiment 3

[0018] The raw materials of the pulp of the pulp molded product fruit tray include raw wood pulp board or waste paper, alkyl ketene polymer, corn starch and dehydration synergist, wherein the dehydration synergist includes NaOH, H 2 o 2 And borax, in terms of mass percentage content, the pulp formula of pulp molded product fruit tray is: 91.5% of raw wood pulp board or waste paper, 2.5% of alkyl ketene polymer, 5.23% of cornstarch, and 0.15% of NaOH , H 2 o 2 0.2% for borax and 0.42% for borax.

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PUM

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Abstract

The invention discloses a paper pulp for a paper pulp molding fruit tray product. The paper pulp comprises the following raw materials in percentage by mass: 89-94% of virgin wood sheet pulp or waste paper, 1-3% of alkyl ketene polymer, 5-8% of corn starch and dewatering synergist, wherein the dewatering synergist comprises the following components in percentage by mass: 0.15-0.25% of NaOH, 0.16-0.23% of H2O2 and 0.2-0.48% of borax; and the alkyl ketene polymer is an AKD (Alkyl Ketene Dimer) waterproofing agent. The paper pulp formula for a paper pulp molding fruit tray product ensures the forming performance of the pulp, reduces the wood-pulp mixture ratio, and causes less environment pollution; and the product has good strength, water resistance, breathability and other properties.

Description

technical field [0001] The invention relates to a kind of pulp, in particular to a kind of pulp for fruit trays of molded pulp products. Background technique [0002] The pulp molding technology that began to emerge in the 1990s has now matured. With the continuous deepening of my country's reform and opening up and the sustainable development of the economy, the fruit market has also shown a multi-level and multi-variety development pattern, and exports have also increased relatively rapidly. Therefore, the corresponding fruit inner packaging, under the pressure of today's market demand and the severe situation of environmental protection, fruit trays of pulp molded products have developed rapidly. In addition to the strength and toughness of general paper products, pulp molded products can also be made into various shapes according to requirements to meet the requirements of the packaged objects for carrying, positioning and cushioning, and can completely replace foam pac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/00D21H17/28D21H21/16D21H21/18
Inventor 辛慧玲邹贵明徐晓燕
Owner HANGZHOU LVBAO PAPER PROD
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