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Composite enzyme preparation for beating household paper to promote fiber modification, preparation method and application thereof

A compound enzyme preparation and household paper technology, which is applied in the field of papermaking, can solve the problems of increasing the number of paper machine breakages, prolonging the enzyme reaction time, and affecting the operation of the paper machine, so as to reduce the loss of fine fibers, increase the volume, and increase the tensile force. Effect

Active Publication Date: 2019-01-29
南宁远石生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art beating enzyme has the following defects in the application: 1. In the application process, holes are very likely to occur, which increases the number of paper machine breakages; 2. When the pulp is stored for a long time, the enzyme reaction time is prolonged. Timely adjustment of beating power consumption will cause fluctuations in beating degree and affect the operation of the paper machine; 3. Coarse texture and rough hand feeling of paper affect product quality

Method used

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  • Composite enzyme preparation for beating household paper to promote fiber modification, preparation method and application thereof
  • Composite enzyme preparation for beating household paper to promote fiber modification, preparation method and application thereof
  • Composite enzyme preparation for beating household paper to promote fiber modification, preparation method and application thereof

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preparation example Construction

[0060] The applicant also proposed a preparation method of a composite enzyme preparation for promoting fiber modification by beating household paper, which specifically includes the following steps:

[0061] Step (1): pre-treating the raw enzyme preparations neutral pectinase, neutral xylanase and neutral cellulase respectively;

[0062] Step (2): Mix 25%-40% neutral pectinase, 20%-35% neutral xylanase and 15%-40% neutral cellulase in a mixer. ;

[0063] Step (3): Then add an appropriate amount of preservatives and pass through a diatomaceous earth filter to sterilize, and then prepare a composite enzyme preparation for household paper beating to promote fiber modification after measuring the enzyme activity.

[0064] The application of the above-mentioned composite enzyme preparation in the beating of household paper. In the process of pulping the raw fiber of household paper, the composite enzyme preparation is added at a constant speed through a metering pump, and the water-power...

Embodiment 1

[0072] The specific formula of the compound enzyme preparation is as follows, and the content is the weight percentage of the components: neutral pectinase 40%, neutral xylanase 30%, and neutral cellulase 30%. The preparation method is as follows: the raw enzyme preparations are respectively pre-treated, and then mixed uniformly in a mixer according to the proportion, and then an appropriate amount of preservative is added, sterilized by a diatomaceous earth filter, and then the enzyme activity is measured and quantitatively packaged to become a product.

[0073] Production test in a household paper enterprise in Shantou, Guangdong. From December 4th to January 3rd, 2014, a total of 31 days, 50 tons of paper towels were produced per day, 1.2 tons of raw fiber per tank of water conservancy pulper, 150 enzymes added G, the amount of enzyme added is 0.125‰. The production data is shown in the following table 1-3 (based on 1.2 tons of absolute dry pulp).

[0074] Table 1. Comparison o...

Embodiment 2

[0081] The specific formula of the compound enzyme preparation is as follows, and the content is the components in weight percentage: neutral pectinase 35%, neutral xylanase 25%, and neutral cellulase 40%. The preparation method is as follows: the raw enzyme preparations are respectively pre-treated, and then mixed uniformly in a mixer according to the proportion, and then an appropriate amount of preservative is added, sterilized by a diatomaceous earth filter, and then the enzyme activity is measured and quantitatively packaged to become a product.

[0082] In a household paper company in Luohe, Henan, from October 8, 2015 to now, 60 tons of tissue paper were produced every day, 2.2 tons of raw material fiber was pulped per tank of water conservancy pulper, 300 grams of enzyme was added, and the amount of enzyme added was 0.136‰. The production data are shown in Tables 4 to 6 below (based on 1 ton of absolute dry pulp).

[0083] Table 4. Comparison of energy consumption during be...

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Abstract

The invention discloses a compound enzyme preparation for promoting fiber modification through pulping novel household paper and a preparation method and application thereof. The compound enzyme preparation comprises, by mass, 70% of an alkaline pectic acid disintegrating compound enzyme, 2% of alkaline cellulase, 18% of alkaline xylanase and 10% of laccase. By adopting the technical scheme, in the process of degumming, consumption of bleaching liquid in the process of bleaching flax fibers is reduced by higher than 20%, consumption of caustic soda in the process of bleaching the flax fibers is reduced by higher than 40%, breaking strength of the flax fibers is increased by higher than 5%, fineness is increased by higher than 20%, elongation at break is increased by higher than 30%, the fibers are uniform in strength, and spinnability of the fibers is improved remarkably, so that economic benefit is increased, production cost is lowered, and COD is lowered by higher than 30%.

Description

Technical field [0001] The invention belongs to the technical field of papermaking, and particularly relates to a composite enzyme preparation for beating household paper to promote fiber modification, and a preparation method and application thereof. Background technique [0002] At present, domestic household paper uses traditional technology, which is characterized by high energy consumption, increased paper tension needs to increase the amount of long fiber, and the pulp consumption is not less than 1.05 or even higher. There is an urgent need for energy saving, consumption reduction, and quality improvement products to solve the problem. Beating is a very important process in the papermaking process. The traditional beating process is a physical change. The changes in the fiber structure and colloidal properties of the pulp produced by the beating are all physical changes and do not cause chemical changes or new generation of fibers. It makes the fiber fibrillated, making th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N9/88C12N9/26C12N9/18C12N9/24C12N9/42D01C1/00
CPCC12N9/18C12N9/2408C12N9/2437C12N9/248C12N9/88C12Y301/01011C12Y302/01004C12Y302/01067C12Y402/02002D01C1/00
Inventor 程海泳郝志军庄冉
Owner 南宁远石生物科技有限公司
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