Unbleached tissue packing paper and production method thereof

A wrapping paper and thin sheet technology, applied in wrapping paper, wrapping paper, packaging, etc., can solve the problems of not finding the preparation method of thin sheet wrapping paper, affecting the speed and productivity of the paper machine, and prolonging the beating time, so as to reduce refining Energy consumption, improved water filtration performance, and low beating degree

Pending Publication Date: 2015-03-25
SHANDONG TRALIN PAPER
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the high beating degree of pulp has the following problems: first, increasing the beating degree of straw pulp will lead to prolonged beating time, increased power consumption, and reduced production capacity; Squeeze rollers and sticky cylinders will cause paper sheets to break and increase paper defects, which directly affect the speed and productivity of the paper machine; thirdly, d

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The wheat straw raw material is steamed and boiled by a conventional method, and then squeezed, washed and decomposed. Pump the straw pulp with a concentration of 10% obtained after thawing to the oxygen delignification reaction tower for oxygen delignification treatment. Magnesium sulfate with a pulp volume of 5% is mixed with 4% lye in terms of sodium hydroxide for the absolute dry pulp volume, and steam is fed into the pipeline to add the slurry to raise the temperature. Afterwards, the pulp enters the oxygen delignification reaction tower after being fully mixed in the mixing chamber. The temperature at the inlet of the reaction tower is 90°C and the pressure is 0.9Mpa. The temperature is 100°C and the pressure is maintained at 0.3Mpa. After the treatment is completed, the pulp is sprayed into the pulp tank and diluted to obtain the unbleached straw pulp. The degree of beating of the unbleached straw pulp is 34°SR.

[0064] The unbleached wood pulp and the unblea...

Embodiment 2

[0077] The bagasse raw material is steamed and boiled by a conventional method, and then squeezed, washed and decomposed. Pump the straw pulp with a concentration of 8% obtained after thawing to the oxygen delignification reaction tower for oxygen delignification treatment. Magnesium sulfate with a pulp volume of 3% is mixed with 3% lye in terms of sodium hydroxide for the absolute dry pulp volume, and steam is introduced into the pipeline to add the slurry to raise the temperature. Afterwards, the pulp enters the oxygen delignification reaction tower after being fully mixed in the mixing chamber. The temperature at the inlet of the reaction tower is 95°C and the pressure is 0.9Mpa. The temperature is 100°C and the pressure is maintained at 0.4Mpa. After the treatment is completed, the pulp is sprayed into the pulp tank and diluted to obtain the unbleached straw pulp. The beating degree of the unbleached straw pulp is 36°SR.

[0078] The unbleached wood pulp and the unbleac...

Embodiment 3

[0091] The Arundis raw material is steamed and boiled by a conventional method, and then squeezed, washed and decomposed. Pump the straw pulp with a concentration of 13% obtained after thawing to the oxygen delignification reaction tower for oxygen delignification treatment. Magnesium sulfate with a pulp volume of 4% is mixed with 2% lye in terms of sodium hydroxide for the absolute dry pulp volume, and steam is introduced into the pipeline to add the slurry to heat up. Afterwards, the pulp enters the oxygen delignification reaction tower after being fully mixed in the mixing chamber. The temperature at the inlet of the reaction tower is 100°C and the pressure is 1.02Mpa. The temperature is 105°C and the pressure is maintained at 0.4Mpa. After the treatment is completed, the pulp is sprayed into the pulp tank and diluted to obtain the unbleached straw pulp. The degree of beating of the unbleached straw pulp is 35°SR.

[0092] The unbleached wood pulp and the unbleached stra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Tightnessaaaaaaaaaa
Tightnessaaaaaaaaaa
Tearaaaaaaaaaa
Login to view more

Abstract

The invention relates to an unbleached tissue packing paper and a production method thereof, and belongs to the field of tissue packing paper in the papermaking industry. The whiteness of the unbleached tissue packing paper is 35-50%, a pulp used in the production of the unbleached tissue packing paper comprises 20-30% of wood pulp and 70-80% of unbleached straw pulp, and the beating degree of the unbleached straw pulp is 42-53DEG SR. The unbleached straw pulp with low beating degree is mainly used by the unbleached tissue packing paper, so a technical prejudice that the production of tissue packing paper needs the straw pulp with high beating degree is overcome; the produced paper has the advantages of high strength, low cost, environmental protection, no toxic substances, wide application range; the production method overcomes the problem of high difficulty of the production of the tissue packing paper from the straw pulp; and the produced tissue packing paper has also has uniform quality, good transparency and high physical strength.

Description

technical field [0001] The invention relates to an unbleached thin-leaf wrapping paper, which belongs to the field of thin-leaf wrapping paper in the papermaking industry, in particular to an unbleached thin-leaf wrapping paper produced by using wood pulp and unbleached paper pulp and a preparation method thereof. Background technique [0002] Tissue wrapping paper, also known as Sydney paper, has a weight of 22g / m 2 The following types of wrapping paper are collectively referred to as packaging paper for fruit, clothing, shoes, leather goods, hardware, porcelain, wine, and handicrafts. With the development of the economy and the improvement of people's living standards, enterprises pay more and more attention to product packaging. Tissue wrapping paper is widely used and closely related to daily consumer goods, and the consumption demand for tissue wrapping paper is gradually expanding. [0003] Tissue wrapping paper is a kind of high-grade packaging paper that is very di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D21H27/10D21H11/00
Inventor 毕衍金李洪法宋明信齐根望赵淑晶闫俊钦
Owner SHANDONG TRALIN PAPER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap