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Special paper for medical protective film and production method of paper

A production method and film-coating technology, applied in pulp beating method, pulp beating/refining method, paper, etc., can solve the problems of non-woven fabrics that cannot be degraded, environmental pollution, etc., achieve fine and thick hand feeling, improve stiffness and thickness Feel, high wet pull effect

Pending Publication Date: 2021-05-14
上海东冠纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its natural advantages such as toughness, durability, and non-wear resistance, nonwoven fabrics are basically occupied by nonwoven fabrics in traditional medical protection products. However, since most of the raw materials of nonwoven fabrics are chemical particles such as PP, PET, and PE, they Some non-woven fabrics are non-degradable, which will cause a series of environmental pollution problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A production method of special paper for low-quantity medical protective peritoneum, the method comprises the following process steps:

[0042] (1) North American softwood pulp and Brazilian hardwood pulp were put into the long-fiber and short-fiber pulpers respectively, and after adding water to a concentration of 6.45wt%, they were crushed respectively for 12 minutes, and then pumped into the long-fiber and short-fiber pulpers respectively. front pulp pool;

[0043] (2) North American coniferous wood pulp is added to the pulp tank before the long fiber tap to adjust the concentration to about 4.55wt% and passes through the refiner. Pulp pond after long fiber tapping;

[0044] (3) Brazilian hardwood pulp is added water to adjust the concentration to about 4.64wt% from the pulp tank before the short fiber is tapped, and passes through the deflaker, the gap between the teeth of the deflaker is adjusted to 0.26mm, and pumped into the short fiber pulp tank after the fiber...

Embodiment 2

[0050] A method for producing high-quantity medical protective peritoneal special paper, the method comprising the following process steps:

[0051] (1) North American softwood pulp and Brazilian hardwood pulp were put into long-fiber and short-fiber pulpers respectively, and after adding water to a concentration of 6.15wt%, they were disintegrated for 14 minutes, and then pumped into long-fiber and short-fiber pulpers respectively. front pulp pool;

[0052] (2) North American coniferous wood pulp is added to the pulp tank before the long fiber tap to adjust the concentration to about 4.13wt% and passes through the refiner. Pulp pond after long fiber tapping;

[0053](3) Brazilian hardwood pulp is added water to adjust concentration to 4.26wt% from short fiber beating front pulp pond; through deflagging machine, the gap between the teeth of deflaking machine is adjusted to 0.25mm, pumped into short fiber pulp pond after fiber deflaking;

[0054] (4) The ratio of 48% North Am...

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Abstract

The invention relates to special paper for a medical protective film and a production method of the paper. The production method comprises the following steps: firstly, respectively feeding North American softwood pulp and Brazil hardwood pulp into a long-fiber pulper and a short-fiber pulper for pulping; then pumping into a long-fiber before-pulping pulp tank and a short-fiber before-pulping pulp tank; adjusting the concentration of the North American softwood pulp, performing grinding, feeding into a long-fiber after-pulping pulp tank, adjusting the concentration of the Brazil hardwood pulp, performing defibering, and feeding into a short-fiber after-pulping pulp tank; pumping the two into a pulp mixing tank according to a ratio, adjusting the concentration, grinding into pulp, and entering a pulp forming tank; and performing diluting, adding a wet strength agent at an outlet of the pulp forming tank, and pumping to a paper machine to obtain a target product. Compared with the prior art, the product provided by the invention is degradable, has more advantages in price, can meet basic medical protection requirements, does not cause environmental pollution, and is cheap, practical and environment-friendly.

Description

technical field [0001] The invention relates to a paper product, in particular to a special paper for medical protective coating and a production method thereof. Background technique [0002] Tissue paper is a traditional industry, and people's daily life is inseparable from tissue paper. Although it belongs to fast-moving consumer goods, as far as the current market is concerned, the production capacity of tissue paper has shown a saturated state. Although its rigid demand continues to grow, its growth rate is far lower than the growth rate of investment in tissue paper production capacity. This has led to a state of excess production capacity of tissue paper, and the operating rate of its enterprises has continued to decrease. Coupled with the high concentration of tissue paper base paper production enterprises, the competition of traditional tissue paper has become increasingly fierce. [0003] The competitive pressure of traditional household paper is becoming more and...

Claims

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Application Information

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IPC IPC(8): D21H11/00D21D1/02D21D1/20D21H17/55D21H21/20
CPCD21H11/00D21D1/02D21D1/20D21H21/20D21H17/55
Inventor 莫建新洪增源戈玮玮
Owner 上海东冠纸业有限公司