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Composite paper making pulp substrate and manufacturing method thereof

A substrate and pulping technology, which is applied in the field of pulping and pulp-based pulping, can solve problems such as product properties, textures, and differences in use, and achieve lower chemical oxygen consumption, good filtration, and good finish. Effect

Active Publication Date: 2014-06-04
苏州吉臣日用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, pulp is only an intermediate product of the papermaking process, and there are great differences in product properties, textures, uses, etc.

Method used

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  • Composite paper making pulp substrate and manufacturing method thereof
  • Composite paper making pulp substrate and manufacturing method thereof
  • Composite paper making pulp substrate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] As shown in the above process steps, the bamboo fiber slurry, sugarcane slurry, and coal cinder are subjected to pulping, slurry mixing, high-concentration sand removal, low-concentration sand removal, sieving, and pulping to obtain the core surface layer slurry. The bamboo fiber pulp and the sugarcane pulp are pulped, blended, high-concentration desanding, low-concentration desanding, sieving, and pulping to obtain surface layer and bottom layer pulp.

[0079] The surface layer, the core layer slurry, and the bottom bamboo fiber slurry are compositely made by a three-layer laminated wire making machine.

[0080] The slurry of the core layer is 20-60wt%, the bamboo fiber slurry of the surface layer is 30-60wt%, and the bamboo fiber slurry of the bottom layer is 10-20wt%. The change in thickness of each layer is mainly controlled by increasing or decreasing the flow rate of the pulp. Normally, the core layer and the surface layer are stable, and the pulp in the bottom la...

Embodiment 2

[0083] Experiments have shown that the liquid that needs to be filtered is different in its physical form, such as suspended solids concentration, particulate matter concentration, chromaticity, etc., and its chemical form, such as chemical oxygen demand (COD), is different, and the object of removal is different, such as removing liquid Organic and inorganic impurities in the In this regard, in addition to adjusting the content of the above-mentioned bamboo fiber slurry, sugarcane slurry, and cinder, according to the direction of the filtered liquid, the structure of the core layer, surface layer, and bottom layer can also be adjusted to form a coarse to fine filter layer. It is conducive to the graded filtration of impurities in the liquid from large particles, small particles, and fine particles, and keeps the liquid flowing smoothly and filtered step by step. Surface layer density 0.4±0.05g / cm 3 , the core density is about 0.35±0.05g / cm 3 , the density of the bottom laye...

Embodiment 3

[0085] For some liquids with low concentration of suspended matter, particle concentration and turbidity, relatively high requirements for chromaticity and brightness, such as beer filtration in food processing, etc., the core layer can also be put at the lowest value of cinder ratio or even Without cinder, the bamboo fiber slurry and sugarcane slurry are mixed as the core layer, and the bamboo fiber slurry is used as the surface layer and the bottom layer, or the bamboo fiber slurry and sugarcane slurry are mixed as the core layer, and the sugarcane slurry is used as the surface layer , the bamboo fiber pulp is the bottom pulp substrate structure. ( Figure 4 with Figure 5 )

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Abstract

The invention provides a composite paper making pulp substrate and a manufacturing method of the composite paper making pulp substrate. The composite paper making pulp substrate comprises, by weight, 30% to 60% of a surface layer, 20% to 60% of a core layer and 10% to 20% of a bottom layer. The surface layer is made of bamboo fibers and / or cane syrup fibers, the core layer is made of the bamboo fibers or the cane syrup fibers or coal residues or a mixture of the bamboo fibers, the cane syrup fibers and the coal residues, and the bottom layer is made of the bamboo fibers and / or the cane syrup fibers. The manufacturing method includes the steps of repulping, pulp mixing, high concentration desanding, low concentration desanding, pressure screening, slushing, composite paper making, drying and the like. The composite paper making pulp substrate and the manufacturing method have the advantages that the pulp substrate is formed by waste generated through bamboo product processing and food processing and the coal residues discharged by fire coal; when being used as a filtering material, the composite paper making pulp substrate has the good filtering effect on water suspended matter and particulate mater, and can remove organic matter particles and insoluble inorganic matter impurities and reduce the effect of chemical oxygen consumption; no waste water is drained in the process steps, and required water can be recycled.

Description

technical field [0001] The invention relates to the technical field of pulp production, in particular to the technical field of pulp production of a pulp substrate. Background technique [0002] Various pulp papermaking composites and multi-layer laminated net papermaking are mostly limited to the technical field of papermaking. [0003] CN101225627B discloses a "method for preparing gas-phase antirust paper from industrial solid waste fibers" (application number 200810017337.8), which involves the preparation of surface pulp and core pulp. It adopts one-step copying method. The method is to send the batter into the upper and lower fourdrinier headboxes of the three-fold wire to form the upper layer and the lower layer, and at the same time integrate the core pulp into the inclined wire headbox to form. The diamond-shaped mesh cloth woven by the weaving machine is integrated into the inclined wire part through the inclined wire headbox to form a core layer. The base materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/04D21H11/12D21H17/01D21H27/30B32B29/00
Inventor 郑明伟张晖王伟君王翠
Owner 苏州吉臣日用品有限公司
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