CN1063132A - The manufacture method of bleached wood pulp base paper - Google Patents
The manufacture method of bleached wood pulp base paper Download PDFInfo
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- CN1063132A CN1063132A CN 91106237 CN91106237A CN1063132A CN 1063132 A CN1063132 A CN 1063132A CN 91106237 CN91106237 CN 91106237 CN 91106237 A CN91106237 A CN 91106237A CN 1063132 A CN1063132 A CN 1063132A
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- wood pulp
- beating
- paper
- bleached wood
- body paper
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Abstract
A kind of manufacture method of bleached wood pulp base paper.With bleached wood pulp is main raw material, adds some wet strength agents through making beating, mixes, desanding, surfs the Net, dehydrates and make high-quality decorative paper.The quality of bleached wood pulp is: 15.0～18.0 ° of SR of magma beating degree, fiber wet weight 14.0～22g.
Description
The present invention relates to the manufacture method of lamination insulation board with body paper.
Quite high in the modern high-grade electrical equipment (as electronic computer, automation system control colour TV etc.) to the requirement of employed wiring board (insulating laminated sheet), not only require its good insulation preformance of resin of dipping usefulness, and the requirement of body paper to dipping usefulness also is very strict, needs very even as fibr tissue; Thickness with quantitatively to stablize; Draw paper intensity and wet strength to want high; Absorbency will wait well.Decorative paper has two kinds at present: a kind of is the cotton pulp body paper, and another kind is the wood pulp body paper.Cotton pulp body paper water absorbing properties is good, but has scratched distortion easily after the strong moulding of reining in property of fiber, and is influential to using, and should not use on high-grade electrical equipment.And wood pulp body paper fiber is short, become plate smooth but the machine hand plants complexity, be difficult for satisfying customer requirements.
The production technology that the purpose of this invention is to provide a cover bleached wood pulp insulation impregnating body paper, required decorative paper in the high-grade electrical equipment of energy steady production.
Technological process provided by the invention as shown in drawings.The raw material that adopts is a bleached wood pulp, and the beating degree of magma is 15～18 ° of SR, and its fiber wet weight is 14～22g, whiteness＞80%.In beater, beating consistency is 2～5%, and pH value is controlled at 6～7.The making beating terminal point is controlled with beating degree and fiber wet weight, and its index is 15～20 ° of SR of beating degree, fiber wet weight 10～15g.Copy the two net twin-tub paper machines of paper, net wherein is to use 80 purpose nylon wires, following current hanging net cage, two survey time material.Carry out two sections desanding with two tapered desanders.Before online, add chemical assistants such as wet strength agent, dispersant at twice.The kind and the amount (is 100 with bleached wood pulp) that add chemical assistant are:
PPE 0.0～1.0%
Melamine resin 0.0～1.0%
Powder 0.0～1.0% is decided in modification
PEO 0.0～0.05%
Its machine hand's skill condition is:
Copy more than the fast 18m/min
Blending bin concentration 2.5～3.5%
16～20 ° of SR of blending bin beating degree
Steady water tank concentration 0.5～0.7%
White water consistency 0.2～0.4%
Go out to dry by the fire narrow-necked earthen jar moisture content＜7%
Its quantitative and even of the body paper of copying (error for ± 3g/m), thickness evenly (± 0.02mm) the tensile strength height (vertically 〉=2.5KN/m, laterally 〉=1.4KN/m), the wet strength height (vertically 〉=0.5KN/m, laterally 〉=0.4KN/m), capillary imbibition degree height (vertical 85+15mm/10min, horizontal 80+15mm/min), whiteness＞80 °, frequency breakdown voltage height (＞800V/ layer), dust is few.
Characteristics of the present invention are to go out high-quality insulation stain with a kind of comparatively simple technology and rational formulation to soak body paper.
Example
Use 100% bleached wood pulp, its quality index is: fiber wet weight 21g, 16 ° of SR of beating degree.Its composition of raw materials is: with bleached wood pulp is 100, brightening agent 0.05%, dispersant PED0.03%, wetting agent modified starch 0.5%, beating process condition: charging concentration 3%, fiber wet weight 12～13g, 17～18 ° of SR of beating degree, pH value 6～7.Machine hand skill: copy paper 19.6m/min, copy wide 1200mm, quantitative 120,126,135g/m ± 3, blending bin concentration 2.5～3.5%, 18～19 ° of SR of blending bin beating degree, steady water tank concentration 0.5～0.7%, white water consistency 0.2～0.4% goes out drying cylinder moisture content 5%.Copy the paper flow process and undertaken by accompanying drawing, the quality of its paper is a following table:
Quantitative g/m 136
Thickness mm 0.266
Anti-vertical 2.35 horizontal strokes 1.70 of intensity KN/m that pass
Wet strength KN/m indulges 0.85 horizontal stroke 0.54
Capillary imbibition height mm/10min indulges 88 horizontal strokes 82
Whiteness % 85.6
Frequency breakdown voltage V/ layer 1000
Dust/m 0
Product is tested with impregnation through producing the colour TV circuit board plant, and every finger meets the demands fully.
Claims (3)
1, utilize bleached wood pulp to be main raw material, add some auxiliary materials through making beating, desanding, surf the Net, copy paper, dehydration, drying and produce the method for insulation impregnating body paper, of the present invention being characterized as:
The beating process condition is:
Beating consistency 2～5%
Fiber wet weight 10～15g
15～20 ° of SR of beating degree
PH value 6～7
Machine hand's skill condition is:
Copy speed 18～22m/min
Blending bin concentration 2.5～3.5%
16～20 ° of SR of blending bin beating degree
Steady water tank concentration 0.5～0.7%
White water consistency 0.2～0.4%
Go out to dry by the fire narrow-necked earthen jar moisture content＜7%
2, the method for producing the insulation impregnating body paper as claimed in claim 1, the quality index that is characterized as its main raw material bleached wood pulp of the present invention is:
15～18 ° of SR of magma beating degree
Fiber wet weight 14.0～22
Whiteness＞80%
3, the method for producing the insulation impregnating body paper as claimed in claim 1, kind and the dosage (is 100 with wood pulp) that is characterized as added auxiliary material in copying paper of the present invention is:
Wet strength agent PPE 0.0～1.0%
Melamine formaldehyde resin 0.0～1.0%
Dispersant PED 0.0～0.05%
Modified starch 0.0～1.0%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106237 CN1022258C (en) | 1991-09-11 | 1991-09-11 | Production method of bleached wood pulp base paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106237 CN1022258C (en) | 1991-09-11 | 1991-09-11 | Production method of bleached wood pulp base paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1063132A true CN1063132A (en) | 1992-07-29 |
| CN1022258C CN1022258C (en) | 1993-09-29 |
Family
ID=4907671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106237 Expired - Fee Related CN1022258C (en) | 1991-09-11 | 1991-09-11 | Production method of bleached wood pulp base paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022258C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033765C (en) * | 1993-07-06 | 1997-01-08 | 李沧海 | Method for mfg. bank-note paper with banana fiber |
| CN101048545B (en) * | 2004-11-05 | 2011-04-27 | 阿克佐诺贝尔公司 | Method for treating cellulose fibres |
| CN102296488A (en) * | 2011-07-07 | 2011-12-28 | 民丰特种纸股份有限公司 | Production method for low-warpage paper base laminating circuit board body paper and paper base laminating circuit board body paper |
| CN113279286A (en) * | 2021-04-06 | 2021-08-20 | 金东纸业（江苏）股份有限公司 | Coated paper and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427681C (en) * | 2004-09-11 | 2008-10-22 | 永州湘江纸业有限责任公司 | Producing mothod for enhancing compound and antislip perforance of compound base paper |
-
1991
- 1991-09-11 CN CN 91106237 patent/CN1022258C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033765C (en) * | 1993-07-06 | 1997-01-08 | 李沧海 | Method for mfg. bank-note paper with banana fiber |
| CN101048545B (en) * | 2004-11-05 | 2011-04-27 | 阿克佐诺贝尔公司 | Method for treating cellulose fibres |
| CN102296488A (en) * | 2011-07-07 | 2011-12-28 | 民丰特种纸股份有限公司 | Production method for low-warpage paper base laminating circuit board body paper and paper base laminating circuit board body paper |
| CN102296488B (en) * | 2011-07-07 | 2013-09-11 | 民丰特种纸股份有限公司 | Production method for low-warpage paper base laminating circuit board body paper and paper base laminating circuit board body paper |
| CN113279286A (en) * | 2021-04-06 | 2021-08-20 | 金东纸业（江苏）股份有限公司 | Coated paper and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1022258C (en) | 1993-09-29 |
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