A kind of manufacturing process of face paper in insulating steel paper

A production process and technology of facial paper, applied in papermaking, paper, papermaking and other directions, can solve problems such as poor evenness, and achieve the effects of improving evenness, increasing specific surface area, and preventing foaming

Active Publication Date: 2021-09-28
新疆源一科创有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention intends to provide a production process of the middle paper of insulating steel paper to solve the problem of poor uniformity of the middle paper of insulating steel paper in the prior art

Method used

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  • A kind of manufacturing process of face paper in insulating steel paper
  • A kind of manufacturing process of face paper in insulating steel paper
  • A kind of manufacturing process of face paper in insulating steel paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment one is basically as attached figure 1 Shown:

[0038] Step 1, soften the slurry: get the unbeaten wood fiber with a degree of polymerization of 1200n-1500n, send the wood fiber into the unbeaten pond, add a softener (quaternary ammonium salt type) that accounts for 0.33% of the total wood fiber in the unbeaten pond Softener), stirring evenly, after stirring for 25 minutes, the untapped wood pulp with a mass concentration of 3.5-4.0% and a wet weight of 17g was prepared.

[0039]Step 2, beating: send the unbeaten wood pulp through step 1 into a disc refiner for beating until the beaten wood pulp with a beating degree of 24-27°SR and a wet weight of 5-8g is obtained; wherein the disc refiner The number is at least two, all disc refiners are connected in series, the first disc refiner that does not enter the wood pulp adopts a cut-off type disc refiner (that is, the disc refiner uses a cut-off type disc refiner), and the rest of the disc refiners The disc refi...

Embodiment 2

[0045] Embodiment two is basically as attached figure 2 As shown, the difference between embodiment two and embodiment one is that embodiment two has also carried out the following improvements:

[0046] There are also step A and step B between step five and step six of embodiment one, specifically as follows:

[0047] Step A, configure polyvinyl alcohol solution: take polyvinyl alcohol with a melting temperature of 100°C, the content of polyvinyl alcohol accounts for 0.9% of the total wood fiber content, dissolve polyvinyl alcohol in water at 100°C, and obtain a mass concentration of 1%. polyvinyl alcohol solution;

[0048] Step B, add polyvinyl alcohol solution: add the polyvinyl alcohol solution that has completed step A to the mixed slurry that has completed step 5; specifically, send the mixed slurry that has completed step 5 into the conical high-level tank, and when the mixed slurry enters In the case of a conical high-level tank, use a metering pump to add the polyv...

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Abstract

The present invention relates to the technical field of steel paper, and specifically discloses a process for making a face paper in insulating steel paper, comprising the following steps: Step 1, softening the slurry: taking unbeaten wood fibers with a degree of polymerization of 1200n-1500n, and mixing the wood fiber Send it into the untapped pond, add the softening agent accounting for 0.3-0.35% of the total wood fiber in the untapped pond, stir evenly, and make the untapped wood pulp with a mass concentration of 3.5-4.0% and a wet weight of 15-19g; Two, beating: beating the uncracked wood pulp to obtain beating degree 24‑27°SR, beating degree 24‑27°SR, wet weight 5‑8g tapped wood pulp; step 3, making reed pulp: take Zhanmu The reed pulp fiber with a total fiber content of 11-18% is sent to the reed pulp tank after the reed fiber is decomposed, and the mass concentration is 3.5-4%, the beating degree is 20-25°SR, and the wet weight is 3.2-3.8g. Untapped reed pulp; step 4, pulp blending: stirring the tapped wood pulp and untapped reed pulp evenly; step 5, surfing the net, dehydrating and drying to obtain facial paper. This solution is used to solve the problem of poor evenness of the face paper in the edge steel paper in the prior art.

Description

technical field [0001] The invention relates to the technical field of steel paper, in particular to a process for making a face paper in insulating steel paper. Background technique [0002] Steel paper base paper is mainly special paper made of plant fiber by paper machine. After layer-by-layer stacking and gelation reaction, steel paper base paper can be made into steel paper. The steel paper is hard and has excellent elasticity. Wear resistance, corrosion resistance, heat resistance, mechanical strength, insulation performance and machining formability, it is very easy to apply to various machining, such as cutting, drilling, bonding, punching and grinding. [0003] The production of insulating steel paper (hereinafter referred to as insulating steel paper) in the prior art includes a surface layer and a sandwich layer. The surface layer is called a face paper, and the sandwich layer is called a sandwich paper. Wood pulp is used as raw material for production. However, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00D21D1/30D21C5/00D21H11/12D21H21/14D21H17/36
CPCD21C5/00D21D1/30D21F11/00D21H11/12D21H17/36D21H21/14
Inventor 胡越段爱琴贾海健
Owner 新疆源一科创有限公司
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