High-strength corrugated case binder and production method thereof

A corrugated box, adhesive technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problem that the storage time is short, usually about 24 hours, and the kinematic viscosity of the glue decreases. Faster, the adhesive is not stable, etc., to achieve the effect of not easy to separate the water and glue, good bonding performance, and stable product quality

Inactive Publication Date: 2019-06-07
CHUZHOU CIGARETTE MATERIALS FACTORY
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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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  • High-strength corrugated case binder and production method thereof
  • High-strength corrugated case binder and production method thereof
  • High-strength corrugated case binder and production method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0039] The preparation method of described high-strength corrugated box adhesive comprises the steps:

[0040] Step 1. Under constant stirring at 150r / min, use the discharge device to slowly add soybean protein isolate into the NaOH solution. After the addition, gradually raise the temperature of the system to 80°C within 25-30min, keep the temperature for 90min, and then cool down to 50°C, adjust the pH of the system to 9-9.5 with citric acid, and naturally cool to room temperature to obtain a soybean protein degradation solution;

[0041] Step 2. React the soybean protein degradation solution with one-third of the modified phenolic resin at 90°C for 10 minutes, then lower the temperature to 65°C, add the remaining modified phenolic resin and modified lignin, continue the reaction for 20 minutes, and cool naturally to room temperature to prepare the adhesive.

[0042] The discharge device described in step 1, such as Figure 1-3 As shown, including the discharge barrel 1, t...

Embodiment 1

[0046] A high-strength corrugated box adhesive, made of the following raw materials in parts by weight: 30 parts of soybean protein isolate, 10 parts of modified phenolic resin, 6 parts of modified lignin, 150 parts of NaOH aqueous solution, and 9 parts of citric acid;

[0047] The high-strength corrugated box adhesive is made by the following steps:

[0048] Step 1. Slowly add soybean protein isolate into the NaOH solution under constant stirring at 150r / min. After adding, gradually raise the temperature of the system to 80°C within 25 minutes, keep the temperature for 90 minutes, and then cool down to 50°C. Adjust the pH of the system to 9, and naturally cool to room temperature to obtain a soybean protein degradation liquid;

[0049] Step 2. React the soybean protein degradation solution with one-third of the modified phenolic resin at 90°C for 10 minutes, then lower the temperature to 65°C, add the remaining modified phenolic resin and modified lignin, continue the reactio...

Embodiment 2

[0051] A high-strength corrugated box adhesive, made of the following raw materials in parts by weight: 35 parts of soybean protein isolate, 12 parts of modified phenolic resin, 7 parts of modified lignin, 175 parts of NaOH aqueous solution, and 10 parts of citric acid;

[0052] The high-strength corrugated box adhesive is made by the following steps:

[0053] Step 1. Slowly add soybean protein isolate into the NaOH solution under constant stirring at 150r / min. After the addition, gradually raise the temperature of the system to 80°C within 28 minutes, keep the temperature for 90 minutes, and then cool down to 50°C. Adjust the pH of the system to 9.3, and cool naturally to room temperature to obtain a soybean protein degradation liquid;

[0054] Step 2. React the soybean protein degradation solution with one-third of the modified phenolic resin at 90°C for 10 minutes, then lower the temperature to 65°C, add the remaining modified phenolic resin and modified lignin, continue th...

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Abstract

The invention discloses a high-strength corrugated case binder. The high-strength corrugated case binder is produced from the following raw materials of, in parts by weight, 30-40 parts of soybean protein isolate, 10-15 parts of modified phenolic resin, 6-8 parts of modified lignin, 150-200 parts of NaOH aqueous solution and 9-11 parts of citric acid. The invention furthermore discloses a production method of the high-strength corrugated case binder. According to the binder, the soybean protein isolate is adopted as a binder main body, the modified phenolic resin is adopted as a cross-linkingagent of the soybean protein isolate, and degraded soybean protein is linked, so that higher binding strength and better water resistance are obtained; by adding the modified lignin, the contents of free formaldehyde and free cresol in the phenolic resin are reduced; and the produced binder is high in binding strength and good in binding performance, the phenomenon of water and binder separation is not liable to happen, the production method is simple, technology conditions are low, a bound board is high in compressive resistance and high in puncture resistance, and the quality of a produced corrugated case can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a high-strength corrugated carton adhesive and a preparation method thereof. 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 in the center, and the backing paper and the flute peaks are effectively bonded together by glue nails. High-strength corrugated cardboard has better paper qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J161/06C09J11/08C09J11/06C08G8/04
Inventor 杜威范海亮邢连成
Owner CHUZHOU CIGARETTE MATERIALS FACTORY
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