Surface-coated roof type packaging paper and production process thereof

A surface-coating and roof-type technology, applied in the field of papermaking, can solve the problems of difficult printing of exquisite patterns, poor visual experience, and lower sensory levels, etc., to achieve good economic and environmental benefits, high degree of closed cycle, pH value Improved effect

Pending Publication Date: 2022-05-10
ASIA SYMBOL SHANDONG PULP & PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the pps coarseness of the roof-top packaging paper is much higher than that of ordinary packaging paper such as "Tetra Pak" and "Combibloc", it is difficult to print a single c

Method used

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  • Surface-coated roof type packaging paper and production process thereof
  • Surface-coated roof type packaging paper and production process thereof
  • Surface-coated roof type packaging paper and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] according to figure 2 The process flow shown prepares roof-top packaging paper, and the specific process is as follows:

[0062] Add bleached coniferous wood chemical pulp into the pulper, the pulp concentration is 5.5wt%, and pump it to the unloading tower after disintegration, and then pump it to the double disc refiner for refining treatment through the knocking pool; Leaf wood chemical pulp, pulp concentration 5.2wt%, pumped to the unloading tower after disintegration, and then pumped to the double disc refiner for refining treatment through the knocking pool; bleached thermomechanical pulp was added to the pulper, pulp concentration 5.3 wt%, crushed and pumped to the unloading tower, and then pumped to the double disc mill through the knocking pool for refining treatment.

[0063]The pulp after the disc grinding treatment is mixed according to the technical requirements to obtain the surface layer pulp, the core layer pulp and the bottom layer pulp respectively. ...

Embodiment 2

[0072] according to figure 2 The process flow shown prepares roof-top packaging paper, and the specific process is as follows:

[0073] Add bleached coniferous wood chemical pulp into the pulper, the pulp concentration is 5.5wt%, and pump it to the unloading tower after disintegration, and then pump it to the double disc refiner for refining treatment through the knocking pool; Leaf wood chemical pulp, with a pulp concentration of 5.3wt%, is crushed and pumped to the unloading tower, and then pumped to the double disc refiner for refining treatment through the knocking pool; bleached thermomechanical pulp is added to the pulper, and the pulp concentration is 5.2 wt%, crushed and pumped to the unloading tower, and then pumped to the double disc mill through the knocking pool for refining treatment.

[0074] The pulp after the disc grinding treatment is mixed according to the technical requirements to obtain the surface layer pulp, the core layer pulp and the bottom layer pulp...

Embodiment 3

[0083] according to figure 2 The process flow shown prepares roof-top packaging paper, and the specific process is as follows:

[0084] Add bleached coniferous wood chemical pulp into the pulper, the pulp concentration is 5.4wt%, and pump it to the unloading tower after disintegration, and then pump it to the double disc refiner for refining treatment through the knocking pool; Leaf wood chemical pulp with a pulp concentration of 5.4wt%, which is pumped to the unloading tower after crushing, and then pumped to the double disc refiner for refining treatment through the knocking pool; bleached thermomechanical pulp is added to the pulper with a pulp concentration of 5.1 wt%, crushed and pumped to the unloading tower, and then pumped to the double disc mill through the knocking pool for refining treatment.

[0085] The pulp after the disc grinding treatment is mixed according to the technical requirements to obtain the surface layer pulp, the core layer pulp and the bottom laye...

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Abstract

The invention belongs to the field of papermaking, and particularly relates to surface-coated roof type packaging paper and a production process thereof. The roof type packaging paper provided by the invention comprises a paper base material as well as a pre-coating layer and a surface coating layer which are sequentially coated on the surface of a surface layer of the paper base material in a stacked manner, the pre-coating layer comprises the following components in parts by weight: 80-90 parts of calcium carbonate, 10-20 parts of porcelain clay and 10-18 parts of latex; and the surface coating comprises the following components in parts by weight: 80-90 parts of calcium carbonate, 10-20 parts of porcelain clay and 12-20 parts of latex. According to the roof type packaging paper provided by the invention, the surface of the paper is coated and modified, so that the paper is finer and smoother, and the printability of the roof type packaging paper is greatly improved. Besides, when the paper provided by the invention is produced, a neutral-alkaline wet-process papermaking process is preferably adopted, so that the paper has good economic benefits and environmental benefits, and the finished paper is high in strength and not easy to turn yellow.

Description

technical field [0001] The invention belongs to the field of papermaking, in particular to a surface-coated roof-top packaging paper and a production process thereof. Background technique [0002] The roof-top carton has a history of less than 30 years since it appeared in our country, but it has been nearly 80 years since its appearance. In the early days of its appearance, the impermeability of the cardboard was mainly improved by coating both sides of the cardboard with edible wax. However, because edible wax is easy to fall off, it is not resistant to high temperature, and it will affect the flavor of the product. After continuous research and improvement by professionals in the papermaking and packaging industries, today's roof-top packaging paper not only meets long-distance transportation, high temperature and humidity, and harsh distribution conditions, but also ensures the natural nutrition, freshness and uniqueness of packaged drinks. taste. At the same time, it...

Claims

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Application Information

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IPC IPC(8): D21H27/10D21H27/30D21H19/82D21H19/38D21H19/40D21H21/14D21F11/00B32B29/00B32B33/00
CPCD21H27/10D21H27/30D21H19/822D21H19/385D21H19/40D21H21/14D21F11/00B32B29/005B32B33/00B32B2255/12B32B2255/20B32B2307/746
Inventor 钱凯锋贾明昊夏继钢丁鹏翔王晶晶陈明芬
Owner ASIA SYMBOL SHANDONG PULP & PAPER
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