阅读说明：本技术 一种高灰分瓦楞原纸及其制备方法 (High-ash corrugated base paper and preparation method thereof ) 是由 朱跃民 张彩伟 成生喜 庞钱 蒋少云 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种高灰分瓦楞原纸及其制备方法,该高灰分瓦楞原纸是由下列重量份配比成份组成:韧皮纤维7-21份、玻璃纤维8-15份、木浆100-155份、丙纶短纤维5-10份、过氯乙烯5-8份、硅酸钠1.5-3份、增刚剂1-2份、滑石粉0.5-1份、冰晶石粉3-5份、涤纶粘结剂0.5-4份、分散剂3-7份、羧甲基纤维素钠0.7-3份、硫酸盐1-7份、清水150-185份、石蜡11-24份、聚苯二烯丁二烯1-7份、氯丁二烯3-12份和二氟醋酸铬2-4份。本发明高灰分瓦楞原纸备时采用韧皮纤维、玻璃纤维、木浆为纤维结构主体；涤纶粘结剂、羧甲基纤维素钠和分散剂的添加能有效的提高瓦楞纸的强度；丙纶短纤维、过氯乙烯、硅酸钠、增刚剂、滑石粉、冰晶石粉为填充剂,提高了原纸的灰分度。(The invention discloses a high-ash corrugated base paper and a preparation method thereof, wherein the high-ash corrugated base paper comprises, by weight, 7-21 parts of bast fibers, 8-15 parts of glass fibers, 155 parts of wood pulp 100-. The high-ash corrugated base paper adopts bast fiber, glass fiber and wood pulp as main fiber structure bodies during preparation; the strength of the corrugated paper can be effectively improved by adding the polyester adhesive, the sodium carboxymethyl cellulose and the dispersing agent; the polypropylene short fiber, the perchloroethylene, the sodium silicate, the stiffening agent, the talcum powder and the cryolite powder are used as filling agents, so that the ash content of the base paper is improved.)

1. A high ash corrugated medium is characterized in that: the high-ash corrugated base paper comprises, by weight, 7-21 parts of bast fibers, 8-15 parts of glass fibers, 155 parts of wood pulp 100-containing materials, 5-10 parts of polypropylene short fibers, 5-8 parts of perchloroethylene, 1.5-3 parts of sodium silicate, 1-2 parts of a stiffening agent, 0.5-1 part of talcum powder, 3-5 parts of cryolite powder, 0.5-4 parts of a polyester binder, 3-7 parts of a dispersing agent, 0.7-3 parts of sodium carboxymethylcellulose, 1-7 parts of sulfate, 185 parts of clear water 150-containing materials, 11-24 parts of paraffin, 1-7 parts of polydiene butadiene, 3-12 parts of chloroprene and 2-4 parts of chromium difluoroacetate.

2. A method for preparing the high ash corrugating medium of claim 1, comprising: the method comprises the following steps:

1) extracting 7-21 parts of bast fiber, 8-15 parts of glass fiber, 155 parts of wood pulp and 185 parts of clear water according to the weight part ratio, uniformly mixing, and then starting to grind;

2) 3-7 parts of dispersing agent, 5-10 parts of polypropylene short fiber, 5-8 parts of perchloroethylene, 1.5-3 parts of sodium silicate, 1-2 parts of stiffening agent, 0.5-1 part of talcum powder and 3-5 parts of cryolite powder are added into the beating slurry pool in the step 1 and are uniformly stirred;

3) adding 0.5-4 parts of polyester binder, 0.7-3 parts of sodium carboxymethylcellulose and 1-7 parts of sulfate into a beaten pulp pond to prepare pulp with the pH value of 5.0-6.5 and the mass concentration of 4-5%;

4) diluting the slurry obtained in the step (3) and surfing the net;

5) pressing and drying the base paper formed in the step 4;

6) extracting 11-24 parts of paraffin, 1-7 parts of polyphenylenebutadiene, 3-12 parts of chloroprene and 2-4 parts of chromium difluoroacetate according to the weight part ratio, and mixing to prepare a soaking solution;

7) putting the paper board pressed and dried in the step 5 into a soaking solution with the temperature of 90-100 ℃ for soaking for 5-10S;

8) placing the paperboard soaked in the step 7 in a baking chamber at the temperature of 110-130 ℃ to slowly move so that the soaking solution can permeate into the paperboard;

9) and (4) cooling the paper board baked in the step (8) at normal temperature to obtain the finished high-ash corrugated base paper.

Technical Field

The invention relates to a high-ash corrugated base paper and a preparation method thereof.

Background

With the progress of society, the express delivery industry develops rapidly. The demand of the carton for the outer package of the articles also rises at a rapid speed, the corrugated base paper is a key material for producing the carton, the demand also rises, and the quality of the base paper plays a decisive role in the quality of the finished carton. The corrugated board has better mechanical strength, can bear certain pressure from the plane, has elasticity and good buffering effect, can be made into liners or containers with various shapes and sizes according to requirements, is simpler, more convenient and quicker than plastic buffering materials, is less influenced by temperature, has good light shading property, is not deteriorated by illumination, but is not suitable for being used in a high-humidity environment for a long time and can influence the strength. The existing high-strength corrugated paper has the phenomenon of moisture absorption and softening after being placed for a long time, so that the strength index of the base paper is reduced, and the pressure resistance of the produced carton is reduced. Therefore, the existing corrugated paper generally has the defects of insufficient moisture resistance due to raw materials, production process and the like, and the strength of the corrugated paper is greatly reduced after moisture absorption, so that the requirements of various environments on the corrugated paper cannot be met.

Disclosure of Invention

The invention aims to solve the technical problem of providing the high-ash corrugated base paper which has long service life and is suitable for a humid environment.

In order to solve the problems, the invention is realized by the following technical scheme: 7-21 parts of bast fiber, 8-15 parts of glass fiber, 155 parts of wood pulp, 5-10 parts of polypropylene short fiber, 5-8 parts of perchloroethylene, 1.5-3 parts of sodium silicate, 1-2 parts of stiffening agent, 0.5-1 part of talcum powder, 3-5 parts of cryolite powder, 0.5-4 parts of polyester binder, 3-7 parts of dispersing agent, 0.7-3 parts of sodium carboxymethylcellulose, 1-7 parts of sulfate, 185 parts of clear water 150-doped fibers, 11-24 parts of paraffin, 1-7 parts of polydiene butadiene, 3-12 parts of chloroprene and 2-4 parts of chromium difluoroacetate.

Another technical problem to be solved by the present invention is to provide a method for preparing a high ash corrugated medium,

the invention is realized by the following technical scheme: the preparation process of the high-ash corrugated base paper comprises the following steps:

1) extracting 7-21 parts of bast fiber, 8-15 parts of glass fiber, 155 parts of wood pulp and 185 parts of clear water according to the weight part ratio, uniformly mixing, and then starting to grind;

2) 3-7 parts of dispersing agent, 5-10 parts of polypropylene short fiber, 5-8 parts of perchloroethylene, 1.5-3 parts of sodium silicate, 1-2 parts of stiffening agent, 0.5-1 part of talcum powder and 3-5 parts of cryolite powder are added into the beating slurry pool in the step 1 and are uniformly stirred;

3) adding 0.5-4 parts of polyester binder, 0.7-3 parts of sodium carboxymethylcellulose and 1-7 parts of sulfate into a beaten pulp pond to prepare pulp with the pH value of 5.0-6.5 and the mass concentration of 4-5%;

4) diluting the slurry obtained in the step (3) and surfing the net;

5) pressing and drying the base paper formed in the step 4;

6) extracting 11-24 parts of paraffin, 1-7 parts of polyphenylenebutadiene, 3-12 parts of chloroprene and 2-4 parts of chromium difluoroacetate according to the weight part ratio, and mixing to prepare a soaking solution;

7) putting the paper board pressed and dried in the step 5 into a soaking solution with the temperature of 90-100 ℃ for soaking for 5-10S;

8) placing the paperboard soaked in the step 7 in a baking chamber at the temperature of 110-130 ℃ to slowly move so that the soaking solution can permeate into the paperboard;

9) and (4) cooling the paper board baked in the step (8) at normal temperature to obtain the finished high-ash corrugated base paper.

The high-ash corrugated base paper has the beneficial effects that: the high-ash corrugated base paper is prepared by adopting bast fibers, glass fibers and wood pulp as a fiber structure main body; the strength of the corrugated paper can be effectively improved by adding the polyester adhesive, the sodium carboxymethyl cellulose and the dispersing agent; polypropylene short fibers, perchloroethylene, sodium silicate, a stiffening agent, talcum powder and cryolite powder are used as filling agents, so that the ash content of the base paper is improved; the corrugated paper after soaking treatment not only has good waterproof and moistureproof performance, but also has obviously improved compressive strength by adopting paraffin, polydiene butadiene, chloroprene and chromium difluoroacetate as soaking liquid.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.