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High-strength corrugated board adhesive and production method thereof

A corrugated cardboard and production method technology, used in corrugated cardboard adhesives and high-strength corrugated cardboard adhesives in corrugated line production, can solve the problem of short storage time, generally about 24 hours, high tightness, poor glue permeability, etc. question

Inactive Publication Date: 2010-11-24
福建泉州群发包装纸品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing adhesive is not stable, the kinematic viscosity of the glue drops rapidly, and the storage time is short, and it usually begins to deteriorate after about 24 hours. The root-top-shaped glue nails are formed in the center, and the backing paper and the flute peaks are effectively bonded together by glue nails
High-strength corrugated cardboard has good paper quality and high tightness. The capillary pores on the surface are blocked by sizing. Generally, the glue has poor permeability and is prone to quality problems such as false sticking, foaming, and degumming.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: a kind of high-strength corrugated cardboard adhesive, its formula is as follows

[0035] A. Cooked glue preparation:

[0036] Water 300kg Starch 55kg Caustic soda 6.5kg Stir for 20 minutes

[0037] B. Raw pulp formula:

[0038] ①Water 800kg, nickel sulfate 1.5kg, starch 305kg, stir for 30 minutes

[0039] ②Add 3kg of caustic soda to 20kg of water and stir to dissolve, then put into ① evenly, and stir for 5 minutes

[0040] ③Add 5kg of borax to 10kg of water to dissolve and put it into ②.

[0041] C. Mixing slurry:

[0042] The cooked glue and the raw pulp are mixed and stirred evenly, and the kinematic viscosity is measured for 50-60 seconds in 6 cups.

[0043] Above-mentioned caustic soda is 96% sodium hydroxide (NaOH), and described starch is cornstarch, and the cohesive strength of binder reaches 7.61n / cm 2 , each layer of starch is 3.5g / m when the adhesive is bonded to corrugated cardboard 2 .

[0044] The above formula has been tested through...

Embodiment 2

[0045] Embodiment 2: a kind of high-strength corrugated cardboard adhesive, single-facer use, its formula is as follows:

[0046] A. Cooked glue preparation:

[0047] 300kg of water, 40kg of starch, and 5.5kg of caustic soda were stirred and reacted for 20 minutes

[0048] B. Raw pulp preparation:

[0049] a) 800kg of water, 1.5kg of nickel sulfate, and 320kg of starch were stirred and reacted for 30 minutes.

[0050] b) Add 4kg of caustic soda to 20kg of water and stir to dissolve, then evenly put into a), and stir for 5 minutes to react.

[0051] c) 10kg of water is added into 4kg of borax to dissolve and then put into b).

[0052] C. Mixing slurry:

[0053] Mix cooked glue and raw pulp evenly, measure the kinematic adhesion and apply 6 cups, 25-35 seconds is qualified.

Embodiment 2

[0054] The formula in Example 2 is used by a cardboard corrugating machine. After testing throughout the year, the adhesive strength reaches 7.8n / cm2, and the edge pressure strength and other properties exceed about 25-35% of ordinary adhesives. It can be stored for 7 days in summer and autumn. Deterioration, it can be stored for 14 days in spring and winter without deterioration, the amount of glue used when bonding corrugated cardboard paper: 3.5g / m for each layer 2 .It can solve the problem of paper foaming in grammage, and can be used in high-speed machines above 250 m / min to solve quality problems such as degumming, false sticking, and warping of cardboard. The characteristics of this formula are low gelatinization temperature and high bonding strength. 7.8n / cm 2 , Due to the reduction in the amount of glue used, the cost is saved by about 30%. In the above cases, a patent for high-strength corrugated molding machine adhesive is specially applied.

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Abstract

The invention discloses a high-strength corrugated board adhesive and a production method thereof. The adhesive is prepared in such a way that starch, flake caustic soda, water, borax, a catalyst, a reducing agent and the like are subjected to chemical synthetic reaction under certain temperature. The prepared adhesive glue is stable. Right amount of cured starch paste with high viscosity and poor liquidity is accurately and uniformly smeared on the corrugated crest lines and satisfies the adhesion mechanism of the high-strength corrugated boards. The adhesive can solve the problems of rib lines such as exposed marks of low-weight boards and the quality problems such as adhesive failure, foam formation, pseudo adhesion, warping, etc of the boards.

Description

technical field [0001] The invention discloses a high-strength corrugated cardboard adhesive and a production method thereof, belongs to the technical field of adhesive manufacturing according to the International Patent Classification (IPC), and in particular relates to an adhesive applied to corrugated cardboard in corrugated line production. Background technique [0002] At present, the adhesive of corrugated cardboard in the production of tile line mainly uses starch glue adhesive. We know that the peel strength standard of the existing starch adhesive is 5.88n / m 2 , its production process is one-step glue making and two-step glue making, and glue making is divided into two methods: cold glue making and hot glue making. Performance is better. However, the existing adhesive is not stable, the kinematic viscosity of the glue drops rapidly, and the storage time is short, and it usually begins to deteriorate after about 24 hours. The root-top-shaped glue nails are formed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J11/04B31F1/20
Inventor 吴海林俞振兴
Owner 福建泉州群发包装纸品有限公司
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