A beating and stirring device for baking base paper

A stirring device and baking technology, applied in the pulp beating method, papermaking, paper, etc., can solve the problems that food and baking paper cannot be completely peeled off, uneven distribution of stripping agent, uneven drying of paper, etc., to achieve smooth surface, size The effect of good stability and high tightness

Active Publication Date: 2021-12-07
ZHEJIANG KAIFENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality of the baking base paper directly determines the quality of the baking paper. In order to reduce the penetration of the stripping agent in the subsequent processing, the baking base paper needs to have a higher degree of tightness. The beating degree of the pulp is generally higher, which is easy to cause uneven drying of the paper and the appearance of seersucker , and then the amount of stripping agent used in subsequent processing increases, the cost increases, the distribution of stripping agent is uneven, food and baking paper cannot be completely stripped, and the aesthetics is affected. In addition, excessive use of stripping agent also has potential safety hazards, difficult degradation, and environmental pollution.

Method used

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  • A beating and stirring device for baking base paper
  • A beating and stirring device for baking base paper
  • A beating and stirring device for baking base paper

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1: The bleached softwood pulp and hardwood pulp that are 1:2 are disintegrated into a pulp liquid with a concentration of 3% in a calculator with a CaCO filler, and the CaCO filler addition is the total amount of dry pulp. 5% of the mass, the CaCO3 filler is 70-grade light calcium carbonate, the CaCO3 content is 97.7%, the whiteness is 94.1%, and the sedimentation degree is 77 cells / 15min; the prepared pulp is processed to separate the wood pulp fibers , control the slurry degree of pulp after beating treatment to be 25 ° SR, and the wet weight of fiber is 2.0g; add 0.2% PAE wet strength agent of the total mass of dry pulp in the pulp solution after beating treatment to control the PAE wet strength aid The viscosity of the agent is 40mpa.s at 25°C, and the pH value is 4 at 21°C; the stirred pulp is purified and dried by fourdrinier forming in multiple cylinders. In the middle of drying, apply water-soluble special polyester emulsion Mix it with a softener at ...

Embodiment 2

[0028] Disintegrate the bleached softwood pulp and hardwood pulp with a ratio of 1:3 into a pulp liquid with a concentration of 4% in a calderator with CaCO3 filler, and the amount of CaCO3 filler added is 7% of the total mass of dry pulp , the CaCO3 filler is 70-grade light calcium carbonate, the CaCO3 content is 97.7%, the whiteness is 95%, and the sedimentation degree is 77 grids / 15min; the prepared pulp liquid is subjected to beating treatment to separate the wood pulp fibers, and the beating process is controlled. The pulp size after beating is 27°SR, and the wet weight of fiber is 2.5g; 1.0% PAE wet strength agent is added to the pulp after beating treatment, and the PAE wet strength agent is controlled at 25°C The viscosity is 60mpa.s, and the pH value is 5 at 21°C; the stirred paper pulp is purified and dried by fourdrinier forming in multiple cylinders. In the middle of drying, water-soluble special polyester emulsion and softener are applied according to the The rati...

Embodiment 3

[0030] Disintegrate the bleached softwood pulp and hardwood pulp with a ratio of 1:4 into a pulp liquid with a concentration of 4% in a calderator with CaCO3 filler, and the amount of CaCO3 filler added is 10% of the total mass of dry pulp , the CaCO3 filler is 70-grade light calcium carbonate, the CaCO3 content is 97.7%, the whiteness is 95%, and the sedimentation degree is 77 grids / 15min; the prepared pulp liquid is subjected to beating treatment to separate the wood pulp fibers, and the beating process is controlled. The paper pulp slurry degree after beating is 30 ° SR, and the wet weight of fiber is 3.0g; Add the PAE wet-strength agent of 2.0% of the absolute dry pulp total mass in the pulp liquor after beating treatment, control PAE wet-strength additive at 25 The viscosity at ℃ is 100mpa.s, and the pH value at 21℃ is 6; the stirred pulp is purified and dried by fourdrinier forming in multiple cylinders. In the middle of drying, water-soluble special polyester emulsion an...

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Abstract

The invention discloses a beating and stirring device for baking base paper. The prepared baking base paper effectively improves paper seersucker paper disease, and the prepared baking base paper has high tightness, good strength, good dimensional stability, high transparency, flat and smooth surface, and absorbs It can effectively reduce the amount of stripping agent used in subsequent processing. Using this device can not only improve the beating quality, but also show the physical properties of the base paper. At the same time, the refining tank can be omitted, and the pulping process from the refining tank to the pulp mixing tank can be avoided fundamentally. loss and cost savings.

Description

technical field [0001] The invention relates to the technical field of special paper, in particular to a beating and stirring device for baking base paper. Background technique [0002] Baking paper, commonly known as silicone oil paper, is widely used in food baking, food barbecue, food microwave and food packaging. Baking paper is prepared from baking base paper with surface sizing or coating with release agent, which is low in cost and environmentally friendly. With the improvement of material living standards, people's awareness of self-care and environmental protection has been continuously enhanced. At the same time, the development of the baking industry has also increased the demand for baking paper. [0003] Baking base paper production technology started earlier in foreign countries, but there are few domestic researches on it. The quality of the baking base paper directly determines the quality of the baking paper. In order to reduce the penetration of the relea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/02D21B1/34D21D1/02D21H11/02D21H17/29D21H17/36D21H21/16D21H21/20
CPCD21B1/342D21B1/345D21D1/02D21F11/02D21H11/02D21H17/29D21H17/36D21H21/16D21H21/20
Inventor 计皓张琦何红梅邱慈祥安田田刘佳文李亮飞
Owner ZHEJIANG KAIFENG NEW MATERIAL CO LTD
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