White board with high tensile strength and manufacture method thereof

A white board paper, high-resistance technology, applied in the field of papermaking, can solve the problems of low stretchability, low tensile coefficient, and low formaldehyde content, and achieve the effects of increasing tensile index, low transparency, and improving stretchability

Active Publication Date: 2016-05-11
周庆芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Another object of the present invention is to provide a high-strength whiteboard with low formaldehyde

Method used

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  • White board with high tensile strength and manufacture method thereof

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Comparison scheme
Effect test

Embodiment 1

[0031] A high-strength white board paper is made of the following raw materials in parts by weight: 100 parts of mixed fiber, 6 parts of tea extract and 10 parts of mango leaf extract. Wherein, 100 parts of the mixed fibers include poplar wood fiber, bamboo fiber and camphor wood fiber with a mass ratio of 15:2:10, and the length of the poplar wood fiber is 0.98mm and the width is 0.02mm.

[0032] The preparation method of the tea extract is as follows: drying and pulverizing the tea leaves, adding them to an aqueous acetone solution for reflux extraction, filtering after the first extraction, performing 2 reflux extractions on the filter residue, combining the filtrates from 3 reflux extractions, and depressurizing The acetone is removed by distillation, the filtrate is concentrated, and freeze-dried to obtain the product; wherein, the amount of acetone added each time is 3 times the quality of the tea leaves.

[0033] The high-strength white board paper also includes a bleac...

Embodiment 2

[0044] A high-strength whiteboard is made from the following raw materials in parts by weight: 105 parts of mixed fiber, 8 parts of tea extract and 15 parts of mango leaf extract. Wherein, 105 parts of the mixed fibers include poplar wood fiber, bamboo fiber and camphor wood fiber with a mass ratio of 16:3:10, and the length of the poplar wood fiber is 0.98 mm and the width is 0.02 mm.

[0045]The preparation method of the tea extract is as follows: drying and pulverizing the tea leaves, adding them to an aqueous acetone solution for reflux extraction, filtering after the first extraction, performing 2 reflux extractions on the filter residue, combining the filtrates from 3 reflux extractions, and depressurizing The acetone is removed by distillation, the filtrate is concentrated, and freeze-dried to obtain the product; wherein, the amount of acetone added each time is 5 times the quality of the tea leaves.

[0046] The high-strength white board paper also includes a bleaching...

Embodiment 3

[0057] A high-strength whiteboard is made of the following raw materials in parts by weight: 102 parts of mixed fiber, 7 parts of tea extract and 12 parts of mango leaf extract. Wherein, 102 parts of the mixed fibers include poplar wood fiber, bamboo fiber and camphor wood fiber with a mass ratio of 15:2:10, and the length of the poplar wood fiber is 0.98 mm and the width is 0.02 mm.

[0058] The preparation method of the tea extract is as follows: drying and pulverizing the tea leaves, adding them to an aqueous acetone solution for reflux extraction, filtering after the first extraction, performing 2 reflux extractions on the filter residue, combining the filtrates from 3 reflux extractions, and depressurizing The acetone is removed by distillation, the filtrate is concentrated and freeze-dried to obtain the product; wherein, the amount of acetone added each time is 4 times the quality of the tea leaves.

[0059] The high-strength white board paper also includes a bleaching a...

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Abstract

The invention discloses a white board with high tensile strength and a manufacture method thereof. The white board is manufactured from the following raw materials in parts by weight: 100-105 parts of mixed fibers, 6-8 parts of a tea extract, and 10-15 parts of mango leaf extract, wherein the 100-105 parts of mixed fibers comprise poplar wood fibers, bamboo fibers and kapur wood fibers in a mass ratio of (15-16):(2-3):10, and the poplar wood fibers are 0.98mm long and 0.02mm wide. The white board with high tensile strength has low formaldehyde content, is free of the disadvantage of flexibility of an existing white board with high tensile strength, and is less prone to fluffing and high in smoothness, and printing ink can attach to the white board with high tensile strength easily.

Description

technical field [0001] The present invention relates to the field of papermaking. More specifically, the present invention relates to a production process of high tensile white board paper. Background technique [0002] Due to the relatively uniform fiber structure of white board paper, the surface layer has filler and rubber components, and the surface is coated with a certain amount of paint, and has been processed by multi-roller calendering, so the texture of the cardboard is relatively tight and the thickness is relatively uniform. The paper surface is generally whiter and smoother, with more uniform ink absorption, less dusting and hair loss on the surface, stronger paper quality and better folding resistance, but its water content is higher , generally around 10%, there is a certain degree of flexibility, which will have a certain impact on printing. The difference between whiteboard paper and coated paper, offset paper, and letterpress paper lies in the weight of t...

Claims

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Application Information

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IPC IPC(8): D21H11/00D21H17/21D21C3/22
CPCD21C3/22D21H11/00D21H17/21
Inventor 邓绍敏陈体勇古胜军
Owner 周庆芬
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