阅读说明：本技术 玉米淀粉黏合剂一步制胶的制备工艺及配方 (Preparation process and formula of corn starch adhesive for one-step glue making ) 是由 陈志强 管大敏 刘仁旭 赵玉锋 姚振利 吕文吉 于 2019-11-05 设计创作，主要内容包括：本发明属于玉米淀粉黏合剂制备技术领域,公开了玉米淀粉黏合剂一步制胶的制备工艺及配方,其中所述配方依照重量比包括如下组份：水73.2％-73.9％,火碱溶液2.6％-2.7％,淀粉22.7％-23.3％,增强剂0.3％-0.33％,稳定剂0.19％-0.3％,硼砂0.26％-0.3％；所述配方包括夏季执行配方和冬季执行配方,所述夏季执行配方中还包括香精,且香精按照0.1％的重量比进行添加；所述冬季执行配方中还包括胶体糊化,且胶体糊化温度为58-60℃,以此有利于提高淀粉黏合剂的粘性；本发明所提供的配方和制备工艺的制作方式简单,且制备温度仅需控制在36-42℃的范围内；另外,本发明的制备工艺整体生产时间较短,能有效提高淀粉黏合剂的生产效率,并且在此前提下还能使制得的黏合剂胶体具有良好的黏度和稳定性。(The invention belongs to the technical field of preparation of corn starch adhesives, and discloses a preparation process and a formula of a one-step glue of a corn starch adhesive, wherein the formula comprises the following components in parts by weight: 73.2 to 73.9 percent of water, 2.6 to 2.7 percent of caustic soda solution, 22.7 to 23.3 percent of starch, 0.3 to 0.33 percent of reinforcing agent, 0.19 to 0.3 percent of stabilizing agent and 0.26 to 0.3 percent of borax; the formula comprises a summer execution formula and a winter execution formula, wherein the summer execution formula also comprises essence, and the essence is added according to the weight ratio of 0.1%; the winter execution formula also comprises colloid gelatinization, and the colloid gelatinization temperature is 58-60 ℃, so that the viscosity of the starch adhesive is favorably improved; the formula and the preparation process provided by the invention have simple preparation modes, and the preparation temperature is only controlled within the range of 36-42 ℃; in addition, the preparation process of the invention has short overall production time, can effectively improve the production efficiency of the starch adhesive, and can ensure that the prepared adhesive colloid has good viscosity and stability.)

1. The formula for preparing the glue by the corn starch adhesive in one step is characterized by comprising the following components in percentage by weight: 73.2 to 73.9 percent of water, 2.6 to 2.7 percent of caustic soda solution, 22.7 to 23.3 percent of starch, 0.3 to 0.33 percent of reinforcing agent, 0.19 to 0.3 percent of stabilizing agent and 0.26 to 0.3 percent of borax.

2. The formulation of claim 1, wherein the weight ratio of water is 73.7%, the weight ratio of caustic solution is 2.6%, the weight ratio of starch is 22.8%, the weight ratio of the strengthening agent is 0.3%, the weight ratio of the stabilizing agent is 0.3%, and the weight ratio of borax is 0.3%.

3. The formulation of claim 2, further comprising a fragrance, wherein the fragrance is added at a weight ratio of 0.1%.

4. The preparation process of the corn starch adhesive for one-step glue making is characterized by comprising the following steps:

s1, adding water accounting for 66.5-67.4% of the total weight into a tank body, heating to 36-42 ℃, then starting stirring, simultaneously adding water accounting for 6.5-6.7% of the total weight and caustic soda solution accounting for 0.9-1% of the total weight, and continuously stirring for 3 minutes;

s2, adding starch accounting for 22.7-23.3% of the total weight, continuously stirring until the starch is uniformly mixed, then adding a reinforcing agent accounting for 0.3-0.33% of the total weight, and continuously stirring for 2-3 minutes;

s3, slowly adding 1.6-1.7 wt% of caustic soda solution, and synchronously stirring;

s4, checking the colloid prepared by the steps by using a measuring cup, stopping adding the caustic soda solution when the viscosity of the colloid reaches 16s, and sequentially adding 0.19-0.3% of stabilizer and 0.26-0.3% of borax by weight;

s5, measuring the colloid prepared by the steps again until the viscosity of the colloid reaches 26s-32 s.

5. The process according to claim 4, wherein the caustic solution is slowly added for a period of not more than 10 minutes in the steps S3 to S4.

6. The preparation process of claim 4, wherein in the step S5, when the colloid viscosity reaches 26S, the preparation process further comprises colloid gelatinization, and the gelatinization temperature is 58-60 ℃.

7. The preparation process according to claim 4, wherein in the step S5, when the viscosity of the colloid reaches 32S, 0.1% of essence in terms of total weight is added to the prepared colloid, and stirring is continued for 5 minutes and then stopped, so as to obtain the pre-prepared colloid.

8. The process according to claim 4, wherein the colloid is prepared with a shelf life of 48-72 hours.

Technical Field

The invention belongs to the technical field of preparation of corn starch adhesives, and particularly relates to a preparation process and a formula of a one-step glue of a corn starch adhesive.

Background

The corn starch adhesive is mainly used in the paper box and paper product industry, the existing preparation method of the corn starch adhesive is obtained by carrying out chemical reaction on corn starch and other components at 50-70 ℃, the production must be carried out in equipment capable of heating and balancing temperature, and the difficulty is brought to production of some small-sized manufacturers. In addition, the existing corn starch adhesive has the problems of long preparation time and unreasonable procedures during preparation, so that the starch adhesive has low glue yield and unstable quality.

Disclosure of Invention

In view of the above, the present invention provides a one-step glue-making formula for corn starch binder and a one-step glue-making preparation process.

1. The formula of the corn starch adhesive for one-step glue making comprises the following components in percentage by weight: 73.2 to 73.9 percent of water, 2.6 to 2.7 percent of caustic soda solution, 22.7 to 23.3 percent of starch, 0.3 to 0.33 percent of reinforcing agent, 0.19 to 0.3 percent of stabilizing agent and 0.26 to 0.3 percent of borax.

Specifically, the method comprises a summer execution formula and a winter execution formula:

executing the formula in summer (the execution time is 5 months 1 day to 10 months 15 days): 73.7% of water, 2.6% of caustic soda solution, 22.8% of starch, 0.3% of reinforcing agent, 0.3% of stabilizing agent and 0.3% of borax;

winter execution formula (execution time is 10 months and 16 days-4 months and 30 days in the next year): 73.2 to 73.9 percent of water, 2.63 to 2.7 percent of caustic soda solution, 22.7 to 23.3 percent of starch, 0.32 to 0.33 percent of reinforcing agent, 0.19 to 0.2 percent of stabilizing agent and 0.26 to 0.27 percent of borax.

Preferably, the summer execution formula further comprises essence, and the essence is added according to the weight ratio of 0.1%.

2. The preparation process of the corn starch adhesive by one step comprises the following steps:

s1, adding water accounting for 66.5-67.4% of the total weight into a tank body, heating to 36-42 ℃, then starting stirring, simultaneously adding water accounting for 6.5-6.7% of the total weight and caustic soda solution accounting for 0.9-1% of the total weight, and continuously stirring for 3 minutes;

s2, adding starch accounting for 22.7-23.3% of the total weight, continuously stirring until the starch is uniformly mixed, then adding a reinforcing agent accounting for 0.3-0.33% of the total weight, and continuously stirring for 2-3 minutes;

s3, slowly adding 1.6-1.7 wt% of caustic soda solution, and synchronously stirring;

s4, checking the colloid prepared by the steps by using a measuring cup, stopping adding the caustic soda solution when the viscosity of the colloid reaches 16s, and sequentially adding 0.19-0.3% of stabilizer and 0.26-0.3% of borax by weight;

s5, measuring the colloid prepared by the steps again until the viscosity of the colloid reaches 26s-32 s.

Preferably, the slow addition time of the caustic solution in the steps S3 to S4 is not more than 10 minutes.

Preferably, based on the summer execution formula, in the step S5, when the viscosity of the colloid reaches 32S, 0.1% by weight of essence is added to the prepared colloid, and stirring is continued for 5 minutes and then stopped, so as to obtain the pre-prepared colloid.

Preferably, based on the winter implementation formula, in step S5, when the viscosity of the colloid reaches 26S, the colloid gelatinization is further included, and the gelatinization temperature is 58-60 ℃, so that the improvement of the viscosity of the starch binder is facilitated, and the stabilizer is added in combination with the borax, so that the production time is shortened, the production efficiency is improved, and the stability of the prepared colloid is improved.

Preferably, the shelf life of the colloid prepared based on the summer executive formula is 48 hours; the shelf life of the gel made based on the winter executive formula was 72 hours.

The invention has the technical effects that:

the formula and the preparation process provided by the invention have simple preparation modes, and the preparation temperature is only controlled within the range of 36-42 ℃;

in addition, the preparation process of the invention has short overall production time, can effectively improve the production efficiency of the starch adhesive, and can ensure that the prepared adhesive colloid has good viscosity and stability.

Drawings

FIG. 1 is a flow chart of a one-step glue preparation process provided by the present invention.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

The formula of the corn starch adhesive for one-step glue making comprises the following components: water, caustic soda solution, starch, reinforcing agent, stabilizing agent and borax.