CN105568737A - White board with high tensile strength and manufacture method thereof - Google Patents
White board with high tensile strength and manufacture method thereof Download PDFInfo
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- CN105568737A CN105568737A CN201510954015.6A CN201510954015A CN105568737A CN 105568737 A CN105568737 A CN 105568737A CN 201510954015 A CN201510954015 A CN 201510954015A CN 105568737 A CN105568737 A CN 105568737A
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- white board
- blended fiber
- making beating
- bleaching
- high anti
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 239000000835 fiber Substances 0.000 claims abstract description 70
- 239000000284 extract Substances 0.000 claims abstract description 35
- 235000004936 Bromus mango Nutrition 0.000 claims abstract description 15
- 235000014826 Mangifera indica Nutrition 0.000 claims abstract description 15
- 235000009184 Spondias indica Nutrition 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 7
- 239000011425 bamboo Substances 0.000 claims abstract description 7
- 244000269722 Thea sinensis Species 0.000 claims abstract 6
- 240000007228 Mangifera indica Species 0.000 claims abstract 3
- 244000082204 Phyllostachys viridis Species 0.000 claims abstract 2
- 238000010009 beating Methods 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 49
- 238000004061 bleaching Methods 0.000 claims description 38
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 30
- 239000003054 catalyst Substances 0.000 claims description 28
- 239000002002 slurry Substances 0.000 claims description 24
- 239000007844 bleaching agent Substances 0.000 claims description 17
- 229940089401 xylon Drugs 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 241000124033 Salix Species 0.000 claims description 11
- 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 description 11
- 244000166541 Plumeria alba Species 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 10
- 239000012467 final product Substances 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 230000015556 catabolic process Effects 0.000 claims description 8
- 238000006731 degradation reaction Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 241000870644 Drypetes diversifolia Species 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 5
- 238000004821 distillation Methods 0.000 claims description 5
- 238000004108 freeze drying Methods 0.000 claims description 5
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 12
- 238000007639 printing Methods 0.000 abstract description 3
- 229920002522 Wood fibre Polymers 0.000 abstract 3
- 239000002025 wood fiber Substances 0.000 abstract 3
- 241000219000 Populus Species 0.000 abstract 2
- 240000005636 Dryobalanops aromatica Species 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- 241001122767 Theaceae Species 0.000 description 24
- 241001093152 Mangifera Species 0.000 description 12
- 239000000123 paper Substances 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
Abstract
The invention discloses a white board with high tensile strength and a manufacture method thereof. The white board is manufactured from the following raw materials in parts by weight: 100-105 parts of mixed fibers, 6-8 parts of a tea extract, and 10-15 parts of mango leaf extract, wherein the 100-105 parts of mixed fibers comprise poplar wood fibers, bamboo fibers and kapur wood fibers in a mass ratio of (15-16):(2-3):10, and the poplar wood fibers are 0.98mm long and 0.02mm wide. The white board with high tensile strength has low formaldehyde content, is free of the disadvantage of flexibility of an existing white board with high tensile strength, and is less prone to fluffing and high in smoothness, and printing ink can attach to the white board with high tensile strength easily.
Description
Technical field
The present invention relates to field of papermaking.More particularly, the present invention relates to a kind of production technology of high anti-tensile white board.
Background technology
White board due to fibr tissue relatively even, superficial layer has the composition of filler and sizing material, and surface scribbles certain coating, and through multi-roller rolling process, so the quality of cardboard is relatively closely, thickness is also more even.Its paper is generally all pure whiter and level and smooth, has more uniform absorbency, and surperficial shedding is with to fall mao phenomenon less, papery is more tough and have good folding strength, but its moisture is higher, generally about 10%, there is certain retractility, this can bring certain impact to printing.White board and the difference between art paper, offset paper, typographic printing paper are that paper gram is spent heavily, paper is more abundant and positive and negative color is different, and white board is the grey colourless of one side, also claims grey primary coat cloth white.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of high anti-tensile white board, and its content of formaldehyde is low, solves retractility that existing high anti-tensile white board exists and the low drawback of tensile factor.High anti-tensile white board of the present invention not easily fluffs, smoothness is high, and ink is easily attached on high anti-tensile white board simultaneously.
In order to realize according to these objects of the present invention and other advantage, provide a kind of high anti-tensile white board, the raw material comprising following parts by weight is made:
The mango leaf extract of the blended fiber of 100-105 part, 6-8 part tea extract and 10-15 part;
Wherein, the described blended fiber of 100-105 part comprises willow xylon, bamboo fibre and the San Cheong wood xylon that mass ratio is 15-16:2-3:10, and the length of described willow xylon is 0.98mm, and wide is 0.02mm;
The preparation method of described tea extract is: add refluxing extraction in aqueous acetone solution after being pulverized by drying tea leaves, first time filters after extracting, and filter residue is carried out 2 refluxing extraction again, the filtrate of 3 refluxing extraction is merged, acetone is removed in decompression distillation, after concentrated filtrate, freeze drying and get final product; Wherein, the addition of each acetone is the 3-5 of tea quality doubly.
Preferably, also comprise bleaching agent, described bleaching agent is gas catalyst.
Present invention also offers a kind of method preparing high anti-tensile white board, comprise the following steps:
Step one, in the blended fiber of 100-105 weight portion, add size degradation in the milk tree aqueous solution become the mass fraction of blended fiber to be the blended fiber slurry of 11%-12%; The preparation method of the described milk tree aqueous solution for milk bark is cut taking juice and water in mass ratio for 3-5:100 mix after boil, cool and get final product;
Step 2, in described blended fiber slurry, add the mango leaf extract of 10-15 weight portion and the tea extract of 6-8 weight portion, continuous stirring, stir speed (S.S.) is 350r/min, and passes into the steam that temperature is 100-110 DEG C in blended fiber slurry, continues 40-55min;
Step 3, the described blended fiber slurry through step 2 process is carried out the process of free beating method, material of must pulling an oar, make the freedom of fiber be 810ml-820ml;
Step 4, making beating material is placed in bleaching system, bleaching agent is gas catalyst, wherein said bleaching system comprises the rectangular-shaped case body of sealing, air inlet pipe is provided with above described case body, described case body interior is stretched into and the bottom surface of close described case body in one end of described air inlet pipe, the other end of described air inlet pipe is connected with the gas tank that gas catalyst is housed, described air inlet pipe is provided with the first valve, the top of described case body is provided with escape pipe, described case body is stretched into and the end face of close described case body in one end of described escape pipe, the other end of described escape pipe is connected with gas collector, described escape pipe is provided with vavuum pump and the second valve,
After making beating material is placed in bleaching system, gas catalyst is passed in described air inlet pipe, its intake is that often liter of making beating material passes into 22-25mg gas catalyst, close the first valve and the second valve, heat described bleaching system, make the temperature of described making beating material remain on 46-48 DEG C, after reaction 16-20min, open the second valve and vavuum pump, repeat step 4 3-5 time, making beating material must be bleached;
Step 5, by bleaching making beating material carry out papermaking, dry to obtain described high anti-tensile white board.
Preferably, after repetition step 4 obtains bleaching making beating material for 3-5 time, in bleaching making beating material, also add talcum powder, after mixing, carry out step 5 again; Wherein, the talcum powder added in every kilogram of bleaching making beating material is 40-49 gram.
Preferably, described blended fiber slurry has also carried out removal of impurities process after carrying out step 2, adopts 80 object screen clothes to blended fiber pulp separation, stays screenings, described screenings is carried out step 3.
Preferably, the intake of described gas catalyst is 24mg/L.
Preferably, after drying in step 5, the moisture of described high anti-tensile white board is 5-8.8%.
The present invention at least comprises following beneficial effect:
1, general fibre length remains on more than 340um would not have impact to the intensity of paper, the willow xylon of employing, and fibre length is 0.98mm, lower than the price of wastepaper as raw material and long fiber trees, and the white board harmful components obtained reduce greatly; The quality that a small amount of bamboo fibre improves paper product is added in blended fiber, there is effect that certain deodorizing is fungi-proofing, strengthen the burst index of white board simultaneously, in blended fiber, add San Cheong wood xylon as natural formaldehyde eliminating agent, the environment protecting of white board can be improved.
2, by milk water aqueous solution size degradation blended fiber, the tensile index of white board can be improved.
3, vapours acceleration tea extract and mango leaf extract is utilized to be evenly distributed in blended fiber slurry, tea extract and mango leaf extract is made to be embedded in the fiber holes of slurry, make to contain tea extract and mango leaf extract in the finished product in later stage, the harmful substances such as the formaldehyde around white board can be adsorbed on and also there is certain bactericidal effect simultaneously.
4, adopt free beating method can save the consumption of paper pulp, the white board density simultaneously obtained is little, and transparency is low, the problem that improves existing white board retractility, and ink easily adheres to simultaneously.
5, in bleaching making beating material, add talcum powder and there is the effect improving white board smoothness.
6, bleaching agent adopts gas catalyst, can not only bleach white board, can also remove the toxic gas such as formaldehyde, benzene homologues simultaneously, paper be had to the effect of sterilization, eliminate the operation of later stage sterilization finished paper, reduce labour intensity.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
Embodiment 1
A kind of high anti-tensile white board, the raw material comprising following parts by weight is made: the mango leaf extract of the blended fiber of 100 parts, 6 parts of tea extracts and 10 parts.Wherein, the described blended fiber of 100 parts comprises willow xylon, bamboo fibre and the San Cheong wood xylon that mass ratio is 15:2:10, and the length of described willow xylon is 0.98mm, and wide is 0.02mm.
The preparation method of described tea extract is: add refluxing extraction in aqueous acetone solution after being pulverized by drying tea leaves, first time filters after extracting, and filter residue is carried out 2 refluxing extraction again, the filtrate of 3 refluxing extraction is merged, acetone is removed in decompression distillation, after concentrated filtrate, freeze drying and get final product; Wherein, the addition of each acetone is 3 times of tea quality.
Described high anti-tensile white board also comprises bleaching agent, and described bleaching agent is gas catalyst.
Prepare the method for high anti-tensile white board in the present embodiment, comprise the following steps:
Step one, add in the blended fiber of 100 weight portions milk tree the aqueous solution in size degradation become the mass fraction of blended fiber be 11% blended fiber slurry; The preparation method of the described milk tree aqueous solution for milk bark is cut taking juice and water in mass ratio for 3:100 mix after boil, cool and get final product.
Step 2, in described blended fiber slurry, add the mango leaf extract of 10 weight portions and the tea extract of 6 weight portions, constantly stir, stir speed (S.S.) is 350r/min, and passes into the steam that temperature is 100-110 DEG C in blended fiber slurry, continues 40min.
Step 3, described blended fiber slurry have also carried out removal of impurities process after carrying out step 2, adopt 80 object screen clothes to blended fiber pulp separation, stay screenings.
Step 4, screenings is carried out the process of free beating method, material of must pulling an oar, make the freedom of fiber be 810ml.
Step 5, making beating material is placed in bleaching system, bleaching agent is gas catalyst, wherein said bleaching system comprises the rectangular-shaped case body of sealing, air inlet pipe is provided with above described case body, described case body interior is stretched into and the bottom surface of close described case body in one end of described air inlet pipe, the other end of described air inlet pipe is connected with the gas tank that gas catalyst is housed, described air inlet pipe is provided with the first valve, the top of described case body is provided with escape pipe, described case body is stretched into and the end face of close described case body in one end of described escape pipe, the other end of described escape pipe is connected with gas collector, described escape pipe is provided with vavuum pump and the second valve.
After making beating material is placed in bleaching system, gas catalyst is passed in described air inlet pipe, its intake is that often liter of making beating material passes into 22mg gas catalyst, close the first valve and the second valve, heat described bleaching system, make the temperature of described making beating material remain on 46 DEG C, after reaction 16min, open the second valve and vavuum pump, repeat step 53 times, making beating material must be bleached.
Step 6, bleaching making beating material in add talcum powder, carry out step 7 again after mixing; Wherein, the talcum powder added in every kilogram of bleaching making beating material is 40 grams.
Step 7, by the bleaching obtained in step 6 making beating material carry out papermaking, dry to obtain described high anti-tensile white board, the moisture of wherein said high anti-tensile white board is 5%.
Embodiment 2
A kind of high anti-tensile white board, the raw material comprising following parts by weight is made: the mango leaf extract of the blended fiber of 105 parts, 8 parts of tea extracts and 15 parts.Wherein, the described blended fiber of 105 parts comprises willow xylon, bamboo fibre and the San Cheong wood xylon that mass ratio is 16:3:10, and the length of described willow xylon is 0.98mm, and wide is 0.02mm.
The preparation method of described tea extract is: add refluxing extraction in aqueous acetone solution after being pulverized by drying tea leaves, first time filters after extracting, and filter residue is carried out 2 refluxing extraction again, the filtrate of 3 refluxing extraction is merged, acetone is removed in decompression distillation, after concentrated filtrate, freeze drying and get final product; Wherein, the addition of each acetone is 5 times of tea quality.
Described high anti-tensile white board also comprises bleaching agent, and described bleaching agent is gas catalyst.
Prepare the method for high anti-tensile white board in the present embodiment, comprise the following steps:
Step one, add in the blended fiber of 105 weight portions milk tree the aqueous solution in size degradation become the mass fraction of blended fiber be 12% blended fiber slurry; The preparation method of the described milk tree aqueous solution for milk bark is cut taking juice and water in mass ratio for 5:100 mix after boil, cool and get final product.
Step 2, in described blended fiber slurry, add the mango leaf extract of 15 weight portions and the tea extract of 8 weight portions, constantly stir, stir speed (S.S.) is 350r/min, and passes into the steam that temperature is 110 DEG C in blended fiber slurry, continues 55min.
Step 3, described blended fiber slurry have also carried out removal of impurities process after carrying out step 2, adopt 80 object screen clothes to blended fiber pulp separation, stay screenings.
Step 4, screenings is carried out the process of free beating method, material of must pulling an oar, make the freedom of fiber be 820ml.
Step 5, making beating material is placed in bleaching system, bleaching agent is gas catalyst, wherein said bleaching system comprises the rectangular-shaped case body of sealing, air inlet pipe is provided with above described case body, described case body interior is stretched into and the bottom surface of close described case body in one end of described air inlet pipe, the other end of described air inlet pipe is connected with the gas tank that gas catalyst is housed, described air inlet pipe is provided with the first valve, the top of described case body is provided with escape pipe, described case body is stretched into and the end face of close described case body in one end of described escape pipe, the other end of described escape pipe is connected with gas collector, described escape pipe is provided with vavuum pump and the second valve.
After making beating material is placed in bleaching system, gas catalyst is passed in described air inlet pipe, its intake is that often liter of making beating material passes into 25mg gas catalyst, close the first valve and the second valve, heat described bleaching system, make the temperature of described making beating material remain on 48 DEG C, after reaction 20min, open the second valve and vavuum pump, repeat step 55 times, making beating material must be bleached.
Step 6, bleaching making beating material in add talcum powder, carry out step 7 again after mixing; Wherein, the talcum powder added in every kilogram of bleaching making beating material is 49 grams.
Step 7, by the bleaching obtained in step 6 making beating material carry out papermaking, dry to obtain described high anti-tensile white board, the moisture of wherein said high anti-tensile white board is 8.8%.
Embodiment 3
A kind of high anti-tensile white board, the raw material comprising following parts by weight is made: the mango leaf extract of the blended fiber of 102 parts, 7 parts of tea extracts and 12 parts.Wherein, the described blended fiber of 102 parts comprises willow xylon, bamboo fibre and the San Cheong wood xylon that mass ratio is 15:2:10, and the length of described willow xylon is 0.98mm, and wide is 0.02mm.
The preparation method of described tea extract is: add refluxing extraction in aqueous acetone solution after being pulverized by drying tea leaves, first time filters after extracting, and filter residue is carried out 2 refluxing extraction again, the filtrate of 3 refluxing extraction is merged, acetone is removed in decompression distillation, after concentrated filtrate, freeze drying and get final product; Wherein, the addition of each acetone is 4 times of tea quality.
Described high anti-tensile white board also comprises bleaching agent, and described bleaching agent is gas catalyst.
Prepare the method for high anti-tensile white board in the present embodiment, comprise the following steps:
Step one, add in the blended fiber of 102 weight portions milk tree the aqueous solution in size degradation become the mass fraction of blended fiber be 11% blended fiber slurry; The preparation method of the described milk tree aqueous solution for milk bark is cut taking juice and water in mass ratio for 4:100 mix after boil, cool and get final product.
Step 2, in described blended fiber slurry, add the mango leaf extract of 12 weight portions and the tea extract of 7 weight portions, constantly stir, stir speed (S.S.) is 350r/min, and passes into the steam that temperature is 105 DEG C in blended fiber slurry, continues 45min.
Step 3, described blended fiber slurry have also carried out removal of impurities process after carrying out step 2, adopt 80 object screen clothes to blended fiber pulp separation, stay screenings.
Step 4, screenings is carried out the process of free beating method, material of must pulling an oar, make the freedom of fiber be 815ml.
Step 5, making beating material is placed in bleaching system, bleaching agent is gas catalyst, wherein said bleaching system comprises the rectangular-shaped case body of sealing, air inlet pipe is provided with above described case body, described case body interior is stretched into and the bottom surface of close described case body in one end of described air inlet pipe, the other end of described air inlet pipe is connected with the gas tank that gas catalyst is housed, described air inlet pipe is provided with the first valve, the top of described case body is provided with escape pipe, described case body is stretched into and the end face of close described case body in one end of described escape pipe, the other end of described escape pipe is connected with gas collector, described escape pipe is provided with vavuum pump and the second valve.
After making beating material is placed in bleaching system, gas catalyst is passed in described air inlet pipe, its intake is that often liter of making beating material passes into 23mg gas catalyst, close the first valve and the second valve, heat described bleaching system, make the temperature of described making beating material remain on 47 DEG C, after reaction 18min, open the second valve and vavuum pump, repeat step 54 times, making beating material must be bleached.
Step 6, bleaching making beating material in add talcum powder, carry out step 7 again after mixing; Wherein, the talcum powder added in every kilogram of bleaching making beating material is 45 grams.
Step 7, by the bleaching obtained in step 6 making beating material carry out papermaking, dry to obtain described high anti-tensile white board, the moisture of wherein said high anti-tensile white board is 7.8%.
Comparative example 1
White board in comparative example 1 is identical with the preparation method of embodiment 3, but only has in raw material: the blended fiber of 102 parts.There is no tea extract and these two kinds of raw materials of mango extract.
Comparative example 2
Comparative example 2 is raw materials used identical with embodiment 3, but in manufacturing process step one adopt be that pure water carries out size degradation, do not use milk set the aqueous solution carry out size degradation, other step is identical with embodiment 3.
The performance test results of the white board of embodiment 1-3 and comparative example 1-2 is in table 1.
The performance test of table 1 white board
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the embodiment described.
Claims (7)
1. a high anti-tensile white board, is characterized in that, the raw material comprising following parts by weight is made:
The mango leaf extract of the blended fiber of 100-105 part, 6-8 part tea extract and 10-15 part;
Wherein, the described blended fiber of 100-105 part comprises willow xylon, bamboo fibre and the San Cheong wood xylon that mass ratio is 15-16:2-3:10, and the length of described willow xylon is 0.98mm, and wide is 0.02mm;
The preparation method of described tea extract is: add refluxing extraction in aqueous acetone solution after being pulverized by drying tea leaves, first time filters after extracting, and filter residue is carried out 2 refluxing extraction again, the filtrate of 3 refluxing extraction is merged, acetone is removed in decompression distillation, after concentrated filtrate, freeze drying and get final product; Wherein, the addition of each acetone is the 3-5 of tea quality doubly.
2. high anti-tensile white board as claimed in claim 1, is characterized in that, also comprise bleaching agent, and described bleaching agent is gas catalyst.
3. prepare a method for high anti-tensile white board as claimed in claim 2, it is characterized in that, comprise the following steps:
Step one, in the blended fiber of 100-105 weight portion, add size degradation in the milk tree aqueous solution become the mass fraction of blended fiber to be the blended fiber slurry of 11%-12%; The preparation method of the described milk tree aqueous solution for milk bark is cut taking juice and water in mass ratio for 3-5:100 mix after boil, cool and get final product;
Step 2, in described blended fiber slurry, add the mango leaf extract of 10-15 weight portion and the tea extract of 6-8 weight portion, continuous stirring, stir speed (S.S.) is 350r/min, and passes into the steam that temperature is 100-110 DEG C in blended fiber slurry, continues 40-55min;
Step 3, the described blended fiber slurry through step 2 process is carried out the process of free beating method, material of must pulling an oar, make the freedom of fiber be 810ml-820ml;
Step 4, making beating material is placed in bleaching system, bleaching agent is gas catalyst, wherein said bleaching system comprises the rectangular-shaped case body of sealing, air inlet pipe is provided with above described case body, described case body interior is stretched into and the bottom surface of close described case body in one end of described air inlet pipe, the other end of described air inlet pipe is connected with the gas tank that gas catalyst is housed, described air inlet pipe is provided with the first valve, the top of described case body is provided with escape pipe, described case body is stretched into and the end face of close described case body in one end of described escape pipe, the other end of described escape pipe is connected with gas collector, described escape pipe is provided with vavuum pump and the second valve,
After making beating material is placed in bleaching system, gas catalyst is passed in described air inlet pipe, its intake is that often liter of making beating material passes into 22-25mg gas catalyst, close the first valve and the second valve, heat described bleaching system, make the temperature of described making beating material remain on 46-48 DEG C, after reaction 16-20min, open the second valve and vavuum pump, repeat step 4 3-5 time, making beating material must be bleached;
Step 5, by bleaching making beating material carry out papermaking, dry to obtain described high anti-tensile white board.
4. the method for the high anti-tensile white board of preparation as claimed in claim 3, is characterized in that, after repetition step 4 obtains bleaching making beating material for 3-5 time, also adds talcum powder, carry out step 5 again after mixing in bleaching making beating material; Wherein, the talcum powder added in every kilogram of bleaching making beating material is 40-49 gram.
5. the method for the high anti-tensile white board of preparation as claimed in claim 3, it is characterized in that, described blended fiber slurry has also carried out removal of impurities process after carrying out step 2, adopts 80 object screen clothes to blended fiber pulp separation, stay screenings, described screenings is carried out step 3.
6. the method for the high anti-tensile white board of preparation as claimed in claim 3, it is characterized in that, the intake of described gas catalyst is 24mg/L.
7. the method for the high anti-tensile white board of preparation as claimed in claim 3, is characterized in that, after drying in step 5, the moisture of described high anti-tensile white board is 5-8.8%.
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