Production process of low-quantitative straw wrapping paper

A production process and packaging paper technology, applied in the field of papermaking, can solve the problems of inability to meet market demand, low tensile strength, low opacity, etc., and achieve the effect of solving the phenomenon of paper breakage, improving tensile strength, and good fiber performance

Inactive Publication Date: 2011-04-06
WELBON SPECIAL MATERIALS CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the general strength of low basis weight paper is much lower than that of high basis weight paper, it is easy to break during use; at the same time, due to low basis weight, the paper has low opacity and low tensile strength, which cannot meet market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The low weight is 18~24g / m 2 Straw wrapping paper production process, the steps are as follows:

[0023] ① Pulping the bleached kraft softwood chemical pulp and adding calcium carbonate for refining;

[0024] ②Pulping the bleached kraft hardwood chemical pulp and adding calcium carbonate for refining;

[0025] ③ Mix and stir the slurry treated in steps ① and ② evenly to dilute the slurry;

[0026] ④ Prepare cationic starch and retention aid as auxiliary materials;

[0027] ⑤ Add the auxiliary materials prepared in step ④ to the diluted slurry described in step ③ respectively, and prepare it as a netting slurry, go through fourdrinier dehydration, press dehydration, drying, surface sizing, drying, finishing, and finally rolling Wrapping paper for straws.

[0028] First, disintegrate the bleached kraft softwood chemical pulp in a hydropulper, add calcium carbonate after pulping, and the mixing ratio is 4-5:1, and then use a double-disc refiner to refine the pulp to Sc...

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PUM

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Abstract

The invention discloses a production process of low-quantitative straw wrapping paper. The process comprises the following steps of: (1) smashing bleached sulphate needle leave wood chemical pulp, adding calcium carbonate, and grinding the mixture; (2) smashing bleached sulphate broad leaf wood chemical pulp, adding calcium carbonate, and grinding the mixture; (3) uniformly blending and stirring the pulp treated in the step (1) and the step (2), and diluting the pulp; (4) preparing auxiliary materials by using cationic starch and a retention aid respectively; and (5) adding the auxiliary materials prepared in the step (4) into the diluted pulp in the step (3) respectively, preparing netting pulp by using the mixture, performing fourdrinier wire dehydration, squeezing dehydration, drying, surface sizing, drying and finishing, and rolling to obtain the straw wrapping paper. The production process has low cost, high opacity, high degree of finish and high flexibility and is environmentally friendly.

Description

technical field [0001] The invention relates to papermaking, in particular to a production process for low-quantity straw wrapping paper. Background technique [0002] Straw wrapping paper is mainly used for beverage straws, dairy product straws, chopsticks packaging, toothpick packaging, etc. It is a high-grade special paper developed in the catering industry in recent years. Advantages, it is gradually replacing plastic packaging and has become a very competitive packaging material. [0003] Straw wrapping paper is the main material of straw packaging, and its performance indicators directly affect the effect of straw packaging. Its main technical indicators include: quantitative, tightness, whiteness, tensile strength, ash, moisture, opacity, etc. [0004] At present, most of the straw packaging paper sold in the domestic market is 28g / m 2 ~32g / m 2 Mainly, the quantity is high, the consumables are many, and resources are wasted, which also increases the production cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10
Inventor 楼钱陈阴杰黄德松杨金桥朱金花赵晓东
Owner WELBON SPECIAL MATERIALS CO LTD
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