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Preparation method of environment-friendly and waterproof corrugated case

A corrugated box, environmental protection technology, applied in papermaking, paper coating, textiles and papermaking, etc., can solve the problems of difficult degradation of waterproof coating, inapplicability of corrugated box, and degradation of various performances, and achieve excellent anti-mold performance and improve waterproof performance , the effect of increasing the penetration speed

Pending Publication Date: 2017-11-07
HEFEI LONGFA PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of corrugated cartons is extremely easy to absorb water, and the performance of corrugated cartons after being damp is greatly reduced, and even unusable.
At present, the common carton waterproof coating on the market has a certain waterproof effect, but it contains heavy toxic substances, which is not suitable for some food packaging corrugated boxes, and the waterproof coating on the surface of discarded corrugated boxes is difficult. degradation, causing serious pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing an environmentally friendly waterproof corrugated box, comprising the following steps: uniformly apply a waterproof coating to a cardboard, and use it as a face paper after drying, wherein the waterproof coating is made of the following components in parts by weight: starch 75 1 part, 1 part of dispersant, 2 parts of thickener, 1 part of sodium ethylenediaminopropane sulfonate, 6 parts of N,N-dioctylaminoethylglycine hydrochloride, 3 parts of ethyltrichlorosilane, palm 4 parts of isooctyl esters, 17 parts of Fructus Rosa, 25 parts of poplar bark, and 20 parts of camphor bark.

[0016] Specifically, the waterproof coating is made by the following method: add starch to water three times its weight, mix and stir evenly, then add hydrogen peroxide with a volume fraction of 35% equal to the weight of starch, and mix the mixture heated to 55°C, and heat-preserved for 2 hours to obtain oxidized starch; after pulverizing Rosa rosae, poplar bark, and camph...

Embodiment 2

[0022] A method for preparing an environmentally friendly waterproof corrugated box, comprising the following steps: uniformly apply a waterproof coating to the cardboard, and use it as a face paper after drying, wherein the waterproof coating is made of the following components in parts by weight: starch 78 1 part, 1 part of dispersant, 3 parts of thickener, 2 parts of sodium ethylenediaminopropane sulfonate, 7 parts of N,N-dioctylaminoethylglycine hydrochloride, 4 parts of ethyl trichlorosilane, palm 6 parts of isooctyl esters, 18 parts of Fructus Rosa, 30 parts of poplar bark, and 22 parts of camphor bark.

[0023] Specifically, the waterproof coating is made by the following method: add starch to water three times its weight, mix and stir evenly, then add hydrogen peroxide with a volume fraction of 35% equal to the weight of starch, and mix the mixture heated to 55°C, and heat-preserved for 2 hours to obtain oxidized starch; after pulverizing Rosa rosae, poplar bark, and c...

Embodiment 3

[0029] A method for preparing an environmentally friendly waterproof corrugated box, comprising the following steps: uniformly apply a waterproof coating to a cardboard, and use it as a face paper after drying, wherein the waterproof coating is made of the following components in parts by weight: starch 80 Parts, 2 parts of dispersant, 4 parts of thickener, 3 parts of sodium ethylenediaminopropane sulfonate, 8 parts of N,N-dioctylaminoethylglycine hydrochloride, 5 parts of ethyl trichlorosilane, palm 7 parts of isooctyl esters, 20 parts of Fructus Rosa, 35 parts of poplar bark, 24 parts of camphor bark.

[0030] Specifically, the waterproof coating is made by the following method: add starch to water three times its weight, mix and stir evenly, then add hydrogen peroxide with a volume fraction of 35% equal to the weight of starch, and mix the mixture heated to 55°C, and heat-preserved for 2 hours to obtain oxidized starch; after pulverizing Rosa roxburghii, poplar bark, and ca...

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PUM

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Abstract

The invention discloses a preparation method of an environment-friendly and waterproof corrugated case. The preparation method comprises operating steps as follows: case boards are uniformly coated with a waterproof coating and are taken as surface paper after the waterproof coating is dried, wherein the waterproof coating is prepared from components in parts by weight as follows: 75-80 parts of starch, 1-2 parts of a dispersing agent, 2-4 parts of a thickening agent, 1-3 parts of sodium ethylenediamine propanesulphonate, 6-8 parts of 2-[bis[2-(octylamino)ethyl]amino]acetic acid, hydrochloride, 3-5 parts of trichloroethylsilane, 4-7 parts of iso-octyl palmitate, 17-20 parts of Rosa laevigata, 25-35 parts of poplar bark and 20-24 parts of camphor tree bark. The corrugated case prepared with the method is excellent in mechanical property, water resistance and anti-mold property and high in strength, besides, the waterproof coating is low-toxicity, environment-friendly and easy to degrade and cannot be harmful to packaged products and the environment, and the quality of the corrugated case is greatly improved.

Description

technical field [0001] The invention belongs to the field of corrugated carton preparation, and in particular relates to a method for preparing an environment-friendly and waterproof corrugated carton. Background technique [0002] Corrugated cardboard is a kind of paper composite board, which is a non-metallic interlayer material with visco-elasticity and plasticity. It is made of corrugated corrugated core paper and inner and outer paper. Pads, paper corner protectors, display stands, paper furniture, paper toys, lightweight building materials, etc. The products show a trend of diversification, and the industrial application prospects are broad. The basic structure of corrugated cardboard is illustrated with a single corrugated cardboard as an example. Single corrugated cardboard, that is, three-layer corrugated cardboard, is made of face paper, inner paper and a layer of corrugated core paper. Corrugated box is a paper container made of corrugated cardboard. It is an id...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/14
CPCD21H19/14
Inventor 林悦敏
Owner HEFEI LONGFA PACKING CO LTD
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