CN103132394A - Filtration paper, preparation method and application thereof - Google Patents
Filtration paper, preparation method and application thereof Download PDFInfo
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- CN103132394A CN103132394A CN2011103793548A CN201110379354A CN103132394A CN 103132394 A CN103132394 A CN 103132394A CN 2011103793548 A CN2011103793548 A CN 2011103793548A CN 201110379354 A CN201110379354 A CN 201110379354A CN 103132394 A CN103132394 A CN 103132394A
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Abstract
The present invention discloses filtration paper, a preparation method and an application thereof. The method comprises the following steps: uniformly mixing 10-35% by mass of plant fibers and 65-90% by mass of man-made fibers to obtain a fiber raw material pulp, wherein the plant fibers are sequentially subject to ease for 10-20 min and pulping for 20-40 min, the man-made fibers are subject to ease for 30-40 min, a fiber length of the man-made fibers is 3-15 mm, and a size is 3-10 dtex; uniformly mixing the fiber raw material pulp, a dispersant and water to obtain a pulp; conveying the pulp to a papermaking machine to prepare base paper; and applying an adhesive on the base paper, drying and rolling to obtain the finished product. The prevent invention further discloses the filtration paper prepared by the method, and applications of the filtration paper as edible oil filtration paper. The filtration paper has characteristics of uniform texture, good pore size distribution, high dry and wet strength, no toxicity, no odor, safety, health, rapid edible oil filtration, and good effect.
Description
Technical field
The present invention relates to a kind of filter paper and its preparation method and application.
Background technology
The filtering material that in prior art, edible oil filters generally has two kinds: dry-laid nonwovens or whole plant fiber filter paper.Dry-laid nonwovens, though gas permeability is good, pore-size distribution is uneven, affect the filter efficiency that essence after the edible oil coarse filtration is filtered operation.And whole plant fiber filter paper, because wet strength is low, easily break, fiber tends to split away off, and affects the safety and sanitation of edible oil, although existing some whole plant fibrous material is after the PROCESS FOR TREATMENT such as impregnation are improved, wet strength improves a lot, but the quantitative height of papery, paper is very thick, and filter efficiency is poor.This present situation needs to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is to have overcome that the edible oil filtering material pore-size distribution of prior art is uneven affect the filter efficiency that essence after the edible oil coarse filtration is filtered operation, perhaps wet strength low, easily break, fiber tends to come off and affects the safety and sanitation of edible oil, the perhaps quantitative height of papery, paper is very thick, the defective of the poor grade of filter efficiency, provide that a kind of papery is even, pore-size distribution is good, do that wet strength is high, nonpoisonous and tasteless, safety and sanitation, but filter paper of fast filtering edible oil and its preparation method and application.
The preparation method of filter paper of the present invention comprises the steps:
(1) will be after discongesting 10min～20min and the string of the 20min～40min that pulls an oar, evenly be mixed to get the fibrous raw material slurry with the artificial fibre of discongesting 30min～40min; Wherein, described string consumption is 10%～35%, and described artificial fibre consumption is 65%～90%, and percentage accounts for respectively the mass percent of fibrous raw material total amount for each fiber, the fibre length of described artificial fibre is 3mm～15mm, fibre number 3dtex～10dtex;
(2) fibrous raw material slurry, dispersant and water evenly are mixed to get slurry;
(3) slurry is inputted paper machine and make body paper;
(4) with body paper applying glue stick, dry, batch and get final product.
Below, further each step of preparation method of filtration of the present invention described in detail:
(1) will be after discongesting 10min～20min and the string of the 20min～40min that pulls an oar, evenly be mixed to get the fibrous raw material slurry with the artificial fibre of discongesting 30min～40min; Wherein, described string consumption is 10%～35%, and described artificial fibre consumption is 65%～90%, and percentage accounts for respectively the mass percent of fibrous raw material total amount for each fiber, the fibre length of described artificial fibre is 3mm～15mm, fibre number 3dtex～10dtex.
In the present invention, described string is the conventional string that uses in this area, one or more that better is in cotton fiber, bamboo fibre and flax fibre.
In the present invention, what described artificial fibre was better is tencel fiber and/or viscose.
In the present invention, that the fibre length of described artificial fibre is better is 6mm～10mm.That the fibre number of described artificial fibre is better is 6dtex～8dtex.
In the present invention, the slurry concentration of described fiber of discongesting is that this area is conventional, and better is 2%～3%, and better is 2.5%, and percentage is the mass percent that slurry material over dry quality accounts for the slurry total amount.Described discongesting comprises that string discongests and the discongesting of artificial fibre.
In the present invention, described discongest and pull an oar be this area routine operation.Wherein, described discongest and pull an oar use equipment used as this area routine, as beater etc.
In the present invention, that the time of described making beating is better is 30min.
In the present invention, that the beating degree (again claim " beating degree ") of described string after making beating is better is 35 ° of SR～70 ° SR; That the weight in wet base of described string after making beating is better is 1g～35g.Described beating degree, weight in wet base are this area routine techniques term.
(2) fibrous raw material slurry, dispersant and water evenly are mixed to get slurry.
In the present invention, the described slurry concentration that is mixed to get slurry is that this area is conventional, and better is 0.06%～0.12%, and better is 0.08%～0.10%, and percentage is the mass percent that slurry material over dry quality accounts for the slurry total amount.
In the present invention, described dispersant is that this area routine is used, and better is polyoxyethylene and/or anion-polyacrylamide, and better is polyoxyethylene.It is described that described polyoxyethylene, anion-polyacrylamide are this area routine.Described polyoxyethylene molecular weight does not have particular determination, and better is that weight average molecular weight is 2,000,000～15,000,000.The consumption of described dispersant is the ability conventional amount used, and better is 0.05%～1.50% of slurry material over dry quality, and better is 0.1%～1.0%.
(3) slurry is inputted paper machine and make body paper.
In the present invention, what described paper machine was better is twin cylinder machine.
In the present invention, that described body paper is quantitatively better is 80g/m
2～100g/m
2
(4) with body paper applying glue stick, dry, batch and get final product.
In the present invention, described applying glue stick uses equipment to use as this area is conventional, and better is application roll.
In the present invention, described adhesive is that this area routine is described, and better is polyvinyl alcohol and/or acrylate, and better is acrylate.It is described that described polyvinyl alcohol, acrylate are this area routine.That described polyvinyl alcohol is better is polyvinyl alcohol 1799D.The working concentration of described adhesive is that this area is conventional, and better is 1.0%～5.5%, and better is 3.0%～4.5%, and percentage is the mass percent that adhesive accounts for adhesive aqueous solution total amount.
In the present invention, the general temperature of described oven dry is 110 ℃～130 ℃, and better is 120 ℃.
In the present invention, on the basis that meets this area general knowledge, each above-mentioned technical characterictic and the optimum condition of formula can any combination obtain preferred embodiments of the present invention.
The invention still further relates to the filter paper that the preparation method of filter paper of the present invention makes.
The invention still further relates to filter paper of the present invention as the application of edible oil filter paper.
Agents useful for same of the present invention and raw material equal commercially available getting except specified otherwise.
Positive progressive effect of the present invention is: filter paper papery of the present invention is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast, nonpoisonous and tasteless, safety and sanitation, and fast filtering edible oil effect is excellent.
The specific embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
In following embodiment, described percentage except specified otherwise, is mass percent as described in summary of the invention.In embodiment, polyoxyethylene, anion-polyacrylamide, polyvinyl alcohol, acrylate etc. are commercially available getting all.
In following embodiment, the detection method of dry tensile strength, wet tensile (strength) and air permeability is all carried out by national standard:
Dry tensile strength (average in length and breadth) examination criteria is GB/T 453-2002;
Wet tensile (strength) (average in length and breadth) examination criteria is GB/T465.2-1989;
The air permeability examination criteria is GB/T 1461-1992.
Embodiment 1
Getting 30 weight portion cotton fibers puts into beater and first discongests 20min (slurry concentration of discongesting fiber is 2.5%), descend again cutter making beating 30min, beating degree reaches 35 ° of SR～45 ° SR, weight in wet base is 20g～28g, then (8.0dtex * 8mm) evenly mixes in the with slurry pond with the 70 weight portion tencel fibers of discongesting 40min (slurry concentration of discongesting fiber is 2.5%) with it, add again the polyacrylamide of slurry material over dry quality 1.0%, then adding water, to be stirred into slurry concentration be 0.08% slurry; Slurry is inputted twin cylinder machine make quantitative 80g/m
2Body paper; Body paper is executed the 1799D polyvinyl alcohol of concentration 4.0% through application roll, get final product through batching after 120 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 3.6kN/m, wet tensile (strength) (average in length and breadth) 2.1kN/m, air permeability 1150L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Embodiment 2
Getting 20 weight portion bamboo fibres puts into beater and first discongests 20min (slurry concentration of discongesting fiber is 2.5%), descend again cutter making beating 30min, beating degree reaches 45 ° of SR～55 ° SR, weight in wet base is 8g～16g, then (8.0dtex * 8mm) evenly mixes in the with slurry pond with the 80 weight portion viscoses of discongesting 40min (slurry concentration of discongesting fiber is 2.5%) with it, add again the polyacrylamide of slurry material over dry quality 1.0%, then adding water, to be stirred into slurry concentration be 0.10% slurry; Slurry is inputted twin cylinder machine make quantitative 85g/m
2Body paper; Body paper is executed the acrylate of concentration 4.0% through application roll, get final product through batching after 120 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 3.8kN/m, wet tensile (strength) (average in length and breadth) 2.4kN/m, air permeability 1280L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Embodiment 3
Getting 15 weight portion flax fibres puts into beater and first discongests 20min (slurry concentration of discongesting fiber is 2.5%), descend again cutter making beating 30min, beating degree reaches 30 ° of SR～40 ° SR, weight in wet base is 15g～25g, then (6.0dtex * 8mm) evenly mixes in the with slurry pond with the 85 weight portion tencel fibers of discongesting 40min (slurry concentration of discongesting fiber is 2.5%) with it, add again the polyoxyethylene of slurry material over dry quality 1.0%, then adding water, to be stirred into slurry concentration be 0.08% slurry; Slurry is inputted twin cylinder machine make quantitative 80g/m
2Body paper; Body paper is executed the acrylate of concentration 4.5% through application roll, get final product through batching after 120 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 4.1kN/m, wet tensile (strength) (average in length and breadth) 2.9kN/m, air permeability 1360L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Embodiment 4
Getting 10 weight portion cotton fibers puts into beater and first discongests 10min (slurry concentration of discongesting fiber is 2%), descend again cutter making beating 20min, beating degree reaches 60 ° of SR～70 ° SR, weight in wet base is 1g～10g, then (10dtex * 3mm) evenly mixes in the with slurry pond with the 90 weight portion tencel fibers of discongesting 40min (slurry concentration of discongesting fiber is 2%) with it, add again the polyacrylamide of slurry material over dry quality 0.05%, then adding water, to be stirred into slurry concentration be 0.06% slurry; Slurry is inputted twin cylinder machine make quantitative 80g/m
2Body paper; Body paper is executed the 1799D polyvinyl alcohol of concentration 1.0% through application roll, get final product through batching after 120 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 3.6kN/m, wet tensile (strength) (average in length and breadth) 2.2kN/m, air permeability 1200L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Embodiment 5
Getting 35 weight portion cotton fibers puts into beater and first discongests 20min (slurry concentration of discongesting fiber is 3%), descend again cutter making beating 40min, beating degree reaches 55 ° of SR～65 ° SR, weight in wet base is 25g～35g, then (3dtex * 15mm) evenly mixes in the with slurry pond with the 65 weight portion tencel fibers of discongesting 30min (slurry concentration of discongesting fiber is 3%) with it, add again the polyacrylamide of slurry material over dry quality 1.5%, then adding water, to be stirred into slurry concentration be 0.12% slurry; Slurry is inputted twin cylinder machine make quantitative 100g/m
2Body paper; Body paper is executed the 1799D polyvinyl alcohol of concentration 5.5% through application roll, get final product through batching after 110 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 3.9kN/m, wet tensile (strength) (average in length and breadth) 2.3kN/m, air permeability 1250L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Embodiment 6
Getting 30 weight portion cotton fibers puts into beater and first discongests 20min (slurry concentration of discongesting fiber is 2.5%), descend again cutter making beating 30min, beating degree reaches 35 ° of SR～45 ° SR, weight in wet base is 20g～28g, then (8.0dtex * 6mm) evenly mixes in the with slurry pond with the 70 weight portion tencel fibers of discongesting 40min (slurry concentration of discongesting fiber is 2.5%) with it, add again the polyacrylamide of slurry material over dry quality 0.1%, then adding water, to be stirred into slurry concentration be 0.08% slurry; Slurry is inputted twin cylinder machine make quantitative 80g/m
2Body paper; Body paper is executed the 1799D polyvinyl alcohol of concentration 3.0% through application roll, get final product through batching after 130 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 4.0kN/m, wet tensile (strength) (average in length and breadth) 2.5kN/m, air permeability 1300L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Embodiment 7
Getting 30 weight portion cotton fibers puts into beater and first discongests 20min (slurry concentration of discongesting fiber is 2.5%), descend again cutter making beating 30min, beating degree reaches 35 ° of SR～45 ° SR, weight in wet base is 20g～28g, then (8.0dtex * 10mm) evenly mixes in the with slurry pond with the 70 weight portion tencel fibers of discongesting 40min (slurry concentration of discongesting fiber is 2.5%) with it, add again the polyacrylamide of slurry material over dry quality 1.0%, then adding water, to be stirred into slurry concentration be 0.08% slurry; Slurry is inputted twin cylinder machine make quantitative 90g/m
2Body paper; Body paper is executed the 1799D polyvinyl alcohol of concentration 4.0% through application roll, get final product through batching after 120 ℃ of oven dry.
After testing, this filter paper dry tensile strength (average in length and breadth) 3.7kN/m, wet tensile (strength) (average in length and breadth) 2.8kN/m, air permeability 1320L/m
2.S, show that the filter paper papery is even, pore-size distribution is good, do that wet strength is high, good hygroscopicity, oil strain speed are fast.
Be applied to fast filtering edible oil effect excellent.
Claims (10)
1. the preparation method of a filter paper, it is characterized in that: it comprises the steps:
(1) will be after discongesting 10min～20min and the string of the 20min～40min that pulls an oar, evenly be mixed to get the fibrous raw material slurry with the artificial fibre of discongesting 30min～40min; Wherein, described string consumption is 10%～35%, and described artificial fibre consumption is 65%～90%, and percentage accounts for respectively the mass percent of fibrous raw material total amount for each fiber, the fibre length of described artificial fibre is 3mm～15mm, fibre number 3dtex～10dtex;
(2) fibrous raw material slurry, dispersant and water evenly are mixed to get slurry;
(3) slurry is inputted paper machine and make body paper;
(4) with body paper applying glue stick, dry, batch and get final product.
2. preparation method as claimed in claim 1, it is characterized in that: in step (1), described string is one or more in cotton fiber, bamboo fibre and flax fibre; And/or described artificial fibre is tencel fiber and/or viscose; And/or wherein, the fibre length of described artificial fibre is 6mm～10mm; And/or the fibre number of described artificial fibre is 6dtex～8dtex.
3. preparation method as claimed in claim 1, it is characterized in that: in step (1), the slurry concentration of described fiber of discongesting is 2%～3%, and better is 2.5%, percentage is the mass percent that slurry material over dry quality accounts for the slurry total amount.
4. preparation method as claimed in claim 1, it is characterized in that: in step (1), the time of described making beating is 30min; And/or the beating degree of described string after making beating is 35 ° of SR～70 ° SR; And/or the weight in wet base of described string after making beating is 1g～35g.
5. preparation method as claimed in claim 1, it is characterized in that: in step (2), the described slurry concentration that is mixed to get slurry is 0.06%～0.12%, and better is 0.08%～0.10%, and percentage is the mass percent that slurry material over dry quality accounts for the slurry total amount; And/or described dispersant is polyoxyethylene and/or anion-polyacrylamide, and better is the polyoxyethylene of weight average molecular weight 2,000,000～1,500 ten thousand; And/or the consumption of described dispersant is 0.05%～1.50% of slurry material over dry quality, and better is 0.1%～1.0%.
6. preparation method as claimed in claim 1, it is characterized in that: in step (3), described paper machine is twin cylinder machine; And/or described body paper is quantitatively 80g/m
2～100g/m
2
7. preparation method as claimed in claim 1, it is characterized in that: in step (4), described applying glue stick uses equipment to be application roll; And/or described bake out temperature is 110 ℃～130 ℃, and better is 120 ℃.
8. preparation method as claimed in claim 1, it is characterized in that: in step (4), described adhesive is polyvinyl alcohol and/or acrylate, and that better is polyvinyl alcohol 1799D; And/or the working concentration of described adhesive is 1.0%～5.5%, and better is 3.0%～4.5%, and percentage is the mass percent that adhesive accounts for adhesive aqueous solution total amount.
9. the filter paper that makes as the preparation method of the described filter paper of claim 1～8 any one.
10. filter paper as claimed in claim 9 is as the application of edible oil filter paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103793548A CN103132394A (en) | 2011-11-23 | 2011-11-23 | Filtration paper, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103793548A CN103132394A (en) | 2011-11-23 | 2011-11-23 | Filtration paper, preparation method and application thereof |
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| CN103132394A true CN103132394A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103793548A Pending CN103132394A (en) | 2011-11-23 | 2011-11-23 | Filtration paper, preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887571A (en) * | 2014-10-23 | 2016-08-24 | 中国制浆造纸研究院 | Oil filtering paper plate containing chemical fibers and production method thereof |
| CN106149472A (en) * | 2016-06-29 | 2016-11-23 | 杭州特种纸业有限公司 | fast qualitative filter paper and preparation method thereof |
| TWI640671B (en) * | 2017-06-14 | 2018-11-11 | 崑山科技大學 | Filter paper having acrylic acid-modified fibers and its preparation method thereof |
| CN108842517A (en) * | 2018-06-15 | 2018-11-20 | 台州市玫瑰纸业股份有限公司 | A kind of edible oil filter paper and preparation method thereof |
| CN110195371A (en) * | 2019-05-31 | 2019-09-03 | 山东仁丰特种材料股份有限公司 | Filter paper Waste paper strip recycling technique |
| CN113293647A (en) * | 2020-02-22 | 2021-08-24 | 杭州特种纸业有限公司 | Seed germination paper and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113135A (en) * | 2005-10-19 | 2007-05-10 | Daifuku Paper Mfg Co Ltd | Filter paper for liquid filtration and method for producing the filter paper for liquid filtration |
| CN102041751A (en) * | 2010-11-25 | 2011-05-04 | 浙江省普瑞科技有限公司 | High-temperature edible oil filter paper and manufacturing method thereof |
-
2011
- 2011-11-23 CN CN2011103793548A patent/CN103132394A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113135A (en) * | 2005-10-19 | 2007-05-10 | Daifuku Paper Mfg Co Ltd | Filter paper for liquid filtration and method for producing the filter paper for liquid filtration |
| CN102041751A (en) * | 2010-11-25 | 2011-05-04 | 浙江省普瑞科技有限公司 | High-temperature edible oil filter paper and manufacturing method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887571A (en) * | 2014-10-23 | 2016-08-24 | 中国制浆造纸研究院 | Oil filtering paper plate containing chemical fibers and production method thereof |
| CN105887571B (en) * | 2014-10-23 | 2018-06-26 | 中国制浆造纸研究院有限公司 | A kind of oily filter board and its production method containing chemical fibre |
| CN106149472A (en) * | 2016-06-29 | 2016-11-23 | 杭州特种纸业有限公司 | fast qualitative filter paper and preparation method thereof |
| TWI640671B (en) * | 2017-06-14 | 2018-11-11 | 崑山科技大學 | Filter paper having acrylic acid-modified fibers and its preparation method thereof |
| CN108842517A (en) * | 2018-06-15 | 2018-11-20 | 台州市玫瑰纸业股份有限公司 | A kind of edible oil filter paper and preparation method thereof |
| CN110195371A (en) * | 2019-05-31 | 2019-09-03 | 山东仁丰特种材料股份有限公司 | Filter paper Waste paper strip recycling technique |
| CN113293647A (en) * | 2020-02-22 | 2021-08-24 | 杭州特种纸业有限公司 | Seed germination paper and preparation method thereof |
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Application publication date: 20130605 |