CN100580180C - Paperboard thickening agent and manufacturing method and application thereof - Google Patents
Paperboard thickening agent and manufacturing method and application thereof Download PDFInfo
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- CN100580180C CN100580180C CN200710113954A CN200710113954A CN100580180C CN 100580180 C CN100580180 C CN 100580180C CN 200710113954 A CN200710113954 A CN 200710113954A CN 200710113954 A CN200710113954 A CN 200710113954A CN 100580180 C CN100580180 C CN 100580180C
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- Prior art keywords
- cardboard
- thickening agent
- wood powder
- paper
- paperboard
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- 239000002562 thickening agent Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000011087 paperboard Substances 0.000 title abstract description 10
- 239000002023 wood Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 19
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000011111 cardboard Substances 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 11
- 239000002956 ash Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 5
- 239000010893 paper waste Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 19
- 229920001131 Pulp (paper) Polymers 0.000 description 14
- 229920005610 lignin Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004537 pulping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 241000511964 Tabernaemontana Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- -1 ironware Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229940089401 xylon Drugs 0.000 description 1
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Abstract
The invention relates to a thickening agent applied to paperboard production, a manufacturing method and application thereof. In order to adapt to the change of imported waste paper fiber raw materials, save the fiber cost of paperboard production, improve the indexes such as the thickness and the stiffness of the paperboard and the like, the invention develops the paperboard thickening agent with simple production process, low price and obvious effect by utilizing the waste materials of wood processing or furniture production, such as wood powder, wood chips and the like, and carrying out modification treatment on the talcum powder. The paper board thickening agent is applied to the production of paper boards, the thickness of the paper boards can be effectively improved, and compared with secondary fiber raw materials, the thickening agent has a very obvious cost advantage.
Description
Technical field
The present invention relates to a kind of intensifier and manufacture method and application that is applied to the field of papermaking production.
Background technology
In recent years, along with China's rapid economy development, for the annual maintenance of the demand double-digit growth of papermaking product especially cardboard.Because the production of cardboards such as coated duplex board with grey back, boxboard, corrugated paper, craft paper all needs to use a large amount of secondary stocks, cause the price of imported waste paper constantly soaring, and a lot of waste paper even reuse are crossed four or five times, the quality of waste paper descends to some extent, and such fibrous raw material has brought very big difficulty for high-quality production.Wherein Zui Da problem is exactly that the thickness index of cardboard is poor, the usual method of paper plant be increase cardboard quantitatively, with thickness and the index of correlation that reaches expectation, so just increased the consumption of fibrous raw material, increased production cost.The intensifier that a kind of high molecular polymer class of chemical synthesis is arranged in the prior art, but because its cost is higher, can't in, apply in the low-grade board product, and its raw material relies on petrochemicals, exists certain problem of environmental pollution in the process of production.
The paper pulp that is used to make cardboard in the prior art divides from pulping process and mainly contains two kinds.
A kind of is chemical pulp, is that the lignin in the string is removed by chemical method, isolates the purpose that fiber is used for papermaking to reach.Chemical pulp has good physical strength, helps improving the indexs such as folding strength, tensile strength and ring crush intensity of cardboard, but because in pulping process, has removed lignin in large quantities, and chemical pulp there is no advantage to indexs such as the thickness that improves cardboard and deflections.
The traditional intensifier that uses in producing is at present formed by the chemical method manufacturing, and content of ashes has only 20%, and it is unsatisfactory to thicken effect, and price is higher, and 30,000 yuan of needs per ton have greatly increased production cost.
Another kind is a mechanical pulp, is with mechanical method plant material to be separated into paper pulp.This pulping process has kept lignin basically fully, and adapted part mechanical pulp in the chemical pulp helps improving indexs such as the thickness of cardboard and deflection, but unfavorable to other intensity index.
Summary of the invention
After the present invention aims to provide a kind of waste material to Wood Processing and carries out modification processing, the technical scheme of producing cardboard thickening agent, the indexs such as thickness that the described cardboard thickening agent production technology of this programme is simple, with low cost, can significantly improve cardboard.
The present invention is achieved through the following technical solutions:
A kind of cardboard thickening agent, its raw material includes wood powder and talcum powder in forming, and constituent content is wood powder 70-75 part, talcum powder 25-30 part.
The content of ashes of this intensifier is 25%-30% (weight %), and density is 0.8-1.0.Can reach the purpose of well mixing with paper pulp.If ash content is too low, density is less than normal, causes " laitance " phenomenon easily; If ash content is too high, density is bigger than normal, then causes " heavy slurry " phenomenon easily.
The used wood powder of the present invention is for gathering the waste material from Wood Processing or furniture production, through the wood powder or the wood fragments bits of Screening Treatment.(consumption is pressed dry weight basis.)
The used talcum powder of the present invention is for gathering from the talcum mine, through the talcum powder of grinding, Screening Treatment.(consumption is pressed dry weight basis.)
The manufacture method of cardboard thickening agent of the present invention may further comprise the steps:
(1) optimize wood powder: common wood powder carries out homogeneous, thinning processing through grinder, and the wood powder mass dryness fraction requires must not contain big hard impurities such as ironware, stone more than 85%.
(2) carry out Screening Treatment through 80 mesh sieves;
(3) add the above talcum powder of 325 orders in the wood powder after the Screening Treatment, enter stock chest, obtain cardboard thickening agent through mixing in the screw extrusion blender and after regulating its ash.
In the actual production process,, regulate ash content by adjustment wood powder, talcum powder ratio according to different production needs.
Above-mentioned cardboard thickening agent is used in actual production process in the following manner:
(1) under the normal temperature, 15-20 part cardboard thickening agent is evenly mixed in mixing pit with 40-45 part water, add water move to concentration and be 10% pulpous state;
(2) above-mentioned cardboard is thickened slurry and pour pressurized screen, screening and removing impurities matter into;
(3) intensifier (weight %) that adds 8-15% in the cardboard core slurry that in the double plate mill, flows out.The core slurry that adds intensifier finally enters the paper machine through core slurry mill after-bay, paper machine after copying forebay, fan pump again.
Cardboard thickening agent of the present invention is controlled at about 8-15% in the addition of back flow liner.Addition is too low, thickens DeGrain; Addition is too high, and hypertrichiasis then may to cause the low and cut paper end face paper of cardboard internal bond strength, influences the printing and the use of cardboard.
The beneficial effect of this programme: can learn according to the narration to such scheme, contain a large amount of lignin in the cardboard thickening agent of the present invention, when making cardboard, its action effect is equivalent to add mechanical pulp.In addition, because this intensifier is produced with the dry grinding method, so the section of Hainan Ervatamia Root fiber edge is more neat, thereby the hydroxyl that comes out seldom, this makes xylon and the paper pulp of producing cardboard not have hydrogen bonded basically, can play the filling effect that is similar to the paper grade (stock) filler to a certain extent, that is to say, make cardboard become more loose, the thickness of cardboard can improve 2-5%.In addition, because the raw material of this intensifier comes from the waste material that Wood Processing or furniture are made, its cost is very cheap, only be equivalent to chemical pulp 1/11 and mechanical pulp 1/8 and secondary stock about 1/4, thereby have fairly obvious cost advantage.
The specific embodiment
The present invention will be further described below in conjunction with concrete instance.
Embodiment 1
(1) common wood powder carries out homogeneous, thinning processing through grinder, and the wood powder mass dryness fraction is 88%, does not contain hard impurity.
(2) carry out Screening Treatment through 80 mesh sieves;
(3) add 325 order talcum powder in the wood powder after the Screening Treatment, enter stock chest, obtain cardboard thickening agent through mixing in the screw extrusion blender and after regulating its ash.
Embodiment 2
(1) under the normal temperature, 15 parts of cardboard thickening agents is evenly mixed in mixing pit with 40 parts of water, add water move to concentration and be 10% pulpous state;
(2) above-mentioned cardboard is thickened slurry and pour pressurized screen, screening and removing impurities matter into;
(3) intensifier (weight %) of adding 15% in the cardboard core slurry that in the double plate mill, flows out.The core slurry that adds intensifier finally enters the paper machine through core slurry mill after-bay, paper machine after copying forebay, fan pump again.
To produce 250g/m
2The coating coated duplex board with grey back is an example, under the constant situation of other condition, uses the intensifier among the present invention, and the relative core slurry of used weight weight is 10% o'clock, becomes paper thickness can improve about 5 μ m.
Under the situation of same one-tenth paper thickness, can save paper pulp and be about 4.2g/m
2
For an annual production is 100,000 tons paperboard mill, can save 2,500,000 yuans of fibrous raw material costs every year.
Choose the several embodiment in numerous Example formulations below, further specify beneficial effect of the present invention.
To produce 250g/m
2The coating coated duplex board with grey back is example (each consumption statistics is at least 50):
Table 1 intensifier consumption and cardboard respectively become the relation of paper index
Intensifier consumption % | 0 | 5 | 8 | 12 | 15 | 18 | 20 |
Paper basis weight g/m 2 | 250.12 | 249.36 | 251.06 | 252.15 | 251.51 | 248.79 | 249.81 |
Become paper thickness μ m | 304.97 | 305.11 | 308.73 | 313.26 | 315.32 | 316.59 | 316.41 |
Become paper bulk cm 3/g | 1.219 | 1.224 | 1.230 | 1.242 | 1.254 | 1.273 | 1.267 |
Become paper tightness g/cm 3 | 0.820 | 0.817 | 0.813 | 0.805 | 0.797 | 0.786 | 0.789 |
Fig. 1 intensifier consumption with become paper thickness relationship figure.
Can see from table 1, Fig. 1, along with the increase of intensifier consumption, become the corresponding increase of thickness of paper. But aborning, if when this intensifier consumption surpassed 15%, hypertrichiasis for the paper that cardboard produces when cutting, and is unfavorable for client's use; And when consumption less than 8% the time, it thickens DeGrain. When consumption during at 8%-15%, both can be thickened preferably effect, other quality of product is also unaffected simultaneously.
Claims (4)
1. cardboard thickening agent, it is characterized in that: the raw material of described cardboard thickening agent is made up of wood powder and talcum powder, and constituent content is pressed dry weight basis wood powder 70--75 part, talcum powder 25--30 part.
2. cardboard thickening agent as claimed in claim 1 is characterized in that: the content of ashes of described cardboard thickening agent is 25%-35% (weight %), and density is 0.8-1.0.
3. the manufacture method of cardboard thickening agent as claimed in claim 1 or 2 may further comprise the steps:
(1) optimize wood powder: common wood powder carries out homogeneous, thinning processing through grinder, and the wood powder mass dryness fraction requires more than 85%, does not contain ironware, hard impurity that stone is big;
(2) carry out Screening Treatment through 80 mesh sieves;
(3) add the above talcum powder of 325 orders in the wood powder after the Screening Treatment, enter stock chest, obtain cardboard thickening agent through mixing in the screw extrusion blender and after regulating its ash content.
4. the application of cardboard thickening agent as claimed in claim 1 is characterized in that:
(1) under the normal temperature, 15-20 part cardboard thickening agent is evenly mixed in mixing pit with 40-45 part water, be adjusted to concentration and be 10% pulpous state;
(2) cardboard is thickened slurry and pour pressurized screen into, impurity is removed in screening;
(3) intensifier that adds 8-15wt% in the cardboard core slurry that in the double plate mill, flows out.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN200710113954A CN100580180C (en) | 2007-10-24 | 2007-10-24 | Paperboard thickening agent and manufacturing method and application thereof |
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CN200710113954A CN100580180C (en) | 2007-10-24 | 2007-10-24 | Paperboard thickening agent and manufacturing method and application thereof |
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CN101161932A CN101161932A (en) | 2008-04-16 |
CN100580180C true CN100580180C (en) | 2010-01-13 |
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CN200710113954A Expired - Fee Related CN100580180C (en) | 2007-10-24 | 2007-10-24 | Paperboard thickening agent and manufacturing method and application thereof |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101362927B (en) * | 2008-09-18 | 2013-01-23 | 张东成 | Additive agent for preparation of artificial board cementing compound and preparation method thereof |
CN105088856A (en) * | 2015-08-10 | 2015-11-25 | 金华盛纸业(苏州工业园区)有限公司 | Method for increasing thickness of cultural paper |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1116147A (en) * | 1964-12-12 | 1968-06-06 | Hoechst Ag | Process for the manufacture of multi-coloured signboards |
JP2000141525A (en) * | 1998-11-16 | 2000-05-23 | Toppan Printing Co Ltd | Decorative board |
CN2551447Y (en) * | 2002-06-03 | 2003-05-21 | 曾启城 | Paper with filler |
CN1473880A (en) * | 2002-08-07 | 2004-02-11 | 欣岱实业股份有限公司 | Method for producing fire-proof board products using waste materials as filling materials |
-
2007
- 2007-10-24 CN CN200710113954A patent/CN100580180C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1116147A (en) * | 1964-12-12 | 1968-06-06 | Hoechst Ag | Process for the manufacture of multi-coloured signboards |
JP2000141525A (en) * | 1998-11-16 | 2000-05-23 | Toppan Printing Co Ltd | Decorative board |
CN2551447Y (en) * | 2002-06-03 | 2003-05-21 | 曾启城 | Paper with filler |
CN1473880A (en) * | 2002-08-07 | 2004-02-11 | 欣岱实业股份有限公司 | Method for producing fire-proof board products using waste materials as filling materials |
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CN101161932A (en) | 2008-04-16 |
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