Method for producing starch glue by low-temperature fast enzymatic conversion

An enzyme-converting starch and production method technology, applied in the directions of adding water repellents, paper, textiles and papermaking, etc., can solve the problems of unsatisfactory enhancement effect, low conversion efficiency, high starch consumption, shorten production time, reduce dosage, The effect of reducing energy consumption

Inactive Publication Date: 2010-02-17
DONGGUAN NINE DRAGONS PAPER IND
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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing surface sizing starch, such as unsatisfactory enhancement effect, high starch consumption and low conversion efficiency, the present invention p

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  • Method for producing starch glue by low-temperature fast enzymatic conversion
  • Method for producing starch glue by low-temperature fast enzymatic conversion
  • Method for producing starch glue by low-temperature fast enzymatic conversion

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Embodiment Construction

[0018] In order to overcome the shortcomings of the existing surface sizing starch, such as unsatisfactory enhancement effect, high starch consumption and low conversion efficiency, the present invention provides a low-temperature rapid enzymatic conversion starch glue production method. The conversion rate of the method is easy to control and reduces energy consumption. Consumption, reducing economic costs.

[0019] The technical solution adopted by the present invention to solve its technical problems is: the low-temperature rapid enzyme conversion starch glue production method, the process steps of the method are as follows: figure 1 :

[0020] 1) Transport the starch raw material to the starch storage tank through the unloading trough and the air pump. When preparing the starch slurry, turn on the air pump under the starch storage tank to transport the starch raw material to the starch slurry preparation tank, and prepare the starch slurry in proportion. Add clear water t...

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Abstract

The invention discloses a method for producing starch glue by low-temperature fast enzymatic conversion, which comprises the following process steps: 1) starch size mixing: adding clear water in the starch, adjusting the concentration of the starch to 20% to 30% by weight; 2) carrying out enzymolysis on the adjusted starch size, adding 0.003%-0.015% of alpha-amylase of dry basis weight of the starch into the starch size for enzymolysis; 3) carrying out high-temperature enzyme inactivation on the starch after enzymolysis, and simultaneously carrying out gelatinization; and 4) placing the starchafter gelatinization into a starch paste storage tank for standby. The process of the invention shortens production time, reduces energy consumption, greatly improves the viscosity of the product; the product is used in surface sizing of paper, which improves the stiffness of the paper, enhances the ability of compression resistance and tension resistance and reduces the dosage of the starch glue, thus reducing manufacturing cost, and ensuring the competitiveness of enterprises.

Description

technical field [0001] The invention relates to a low-temperature rapid enzymatically converted starch glue production method, in particular suitable for the preparation process of surface sizing starch for papermaking. Background technique [0002] With the upgrading of the quality of paper products, surface sizing is widely used in cultural paper and packaging paper. The purpose of use is to prevent liquid penetration, and to improve the surface bonding strength performance; third, to improve the internal strength performance. In order to reduce production costs, most enterprises use native starch directly after cooking in paper production workshops. The conversion and cooking methods commonly used for native starch are: excess steam method, enzymatic conversion method and thermochemical conversion method. There are two ways of preparation: continuous cooking and batch cooking. Among them, the excess steam method needs to use 125-300% of the steam used to heat the starch...

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Application Information

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IPC IPC(8): D21H21/16D21H17/28C12P19/14
Inventor 曹良文南岳君张成飞林新阳
Owner DONGGUAN NINE DRAGONS PAPER IND
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