CN102230297B - Plant paper pulp fiber modifying method, and filter paper and preparation method thereof - Google Patents
Plant paper pulp fiber modifying method, and filter paper and preparation method thereof Download PDFInfo
- Publication number
- CN102230297B CN102230297B CN 201110157294 CN201110157294A CN102230297B CN 102230297 B CN102230297 B CN 102230297B CN 201110157294 CN201110157294 CN 201110157294 CN 201110157294 A CN201110157294 A CN 201110157294A CN 102230297 B CN102230297 B CN 102230297B
- Authority
- CN
- China
- Prior art keywords
- pulp
- paper
- plant
- pulp fiber
- filter paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Paper (AREA)
Abstract
The invention relates to a modifying method of a plant paper pulp fiber modifying, and filter paper and a preparation method thereof, belonging to the fields of modification of plant paper pulp fiber and preparation of filter paper. The invention aims to solve the problem of failure to implement modification of plant paper pulp fiber since no plant paper pulp fiber modifying agent and modifying method exist in the prior art, and the problem of high cost in the prepared filter paper in the prior art, or that the prepared filter paper can not have small pore size on the premise of ensuring high air permeability. The plant paper pulp fiber modifying method comprises the following steps: 1. preparing the modifying agent; and 2. modifying. The filter paper is prepared from the following components in parts by weight: 15-45 parts of plant paper pulp fiber modified sulfate softwood pulp, 5-15 parts of sulfate hardwood pulp and 45-75 parts of plant paper pulp fiber modified mercerized sulfate softwood pulp. The invention is used for modifying plant paper pulp fiber and preparing filter paper.
Description
Technical field
The present invention relates to the modification of plant paper pulp fiber and the preparation field of filter paper.
Background technology
Filter paper have efficient height, volume little, lightweight, easy to use, be convenient to the advantages such as cleaning, have widely development space in industries such as auto industry, drinks, medicine, chemical industry.
String is classics and the main raw material of papermaking, and its paper of manufacturing paper with pulp not only has good strength character, also has good permeability simultaneously.But as filtering material, the processing mode of common paper pulp fibres routine and papermaking process have again less aperture when being difficult to make filter paper to keep higher air permeability.For example: hardwood pulp fiber finer and lacking, the Unit Weight number of fiber is many, and the crosspoint is many, and reaction is exactly that tightness is little, the aperture is little, air permeability is low in the filtering paper structure performance; Softwood pulp then in contrast, fiber is thick and grow, the Unit Weight radical is few, the crosspoint is few, so the tightness of paper and maximum diameter of hole are all large, and voidage is lower; Although the cotton linter pulp fiber is long, and width is less, and length-width ratio is very large, and the part fiber is the distortion form in addition, becomes paper structure tightness less, and maximum diameter of hole and voidage are relatively large, are good filter paper raw materials, and price is too high.
Prior art mainly is to adopt alkali mercerizedization method and mechanical beating method to the processing mode of string filter paper raw material.For example needle is starched body paper average pore size 25 μ m ~ 50 μ m, the air permeability 120 ~ 170L/m that manufacture paper with pulp
2S has lower strainability, can guarantee the body paper higher-strength; Mercerization needle through alkali treatment is starched manufacture paper with pulp body paper average pore size 60 ~ 90 μ m, air permeability 900 ~ 1300L/m
2S, although the raising of the mercerization needle of alkali treatment slurry air permeability is very obvious, the aperture obviously increases; Equally take the needle slurry as raw material, take making beating to process to its fiber, the different beating degrees of comparative analysis are to the Filter paper filtering performance impact, when beating degree is by 12 ° of SR to 19 ° of SR of original pulp beating degree as a result, air permeability and the aperture of its filter paper of manufacturing paper with pulp progressively descend, and namely air permeability is by original 120L/m
2S drops to 20L/m
2S, average pore size drops to 26 μ m by 43 original μ m, and the decline of the simultaneous air permeability that the aperture reduces seriously influences the speed of filtration.
There are not plant pulp fiber modilication medicament and method of modifying in the processing mode of prior art to string filter paper raw material, so can not be from realizing in essence the modification of plant paper pulp fiber, and the filter paper cost of prior art preparation is high, perhaps the filter paper of preparation can not have again the problem of smaller aperture due when guaranteeing high air permeability, so the filter paper that a kind of cost of demand is low and have again smaller aperture due when having than high-air-permeability becomes the problem that people pay close attention to.
Summary of the invention
The present invention will solve in the processing mode of prior art to string filter paper raw material not have plant pulp fiber modilication medicament and method of modifying, so can't realize the modification of plant paper pulp fiber, and the filter paper cost of prior art preparation is high, perhaps the filter paper of preparation can not have again the problem of smaller aperture due when guaranteeing high air permeability, and plant pulp fiber modilication method and filter paper and the preparation method of preparation filter paper are provided.
The medicament of plant pulp fiber modilication is comprised of inorganic salts, distilled water and absolute ethyl alcohol; Wherein the mol ratio of inorganic salts and distilled water is 1:(10 ~ 15), the mol ratio of absolute ethyl alcohol and distilled water is 1:(10 ~ 15).
Zinc chloride has the effect of dissolving in the improved chemical of the present invention's preparation to paper pulp fiber, ethanol can accelerate medicament the fiber finer cell wall is permeated, simultaneously the metal ion in the medicament can with fiber on carboxyl etc. form the ionic bond coordination, for the modification of paper pulp fiber provides good prerequisite and basis.
The method of modifying of plant paper pulp fiber is finished according to the following steps: one, configuration improved chemical: inorganic salts, distilled water and absolute ethyl alcohol are mixed with improved chemical, inorganic salts in the wherein said improved chemical and the mol ratio of distilled water are 1:(10 ~ 15), the mol ratio of absolute ethyl alcohol and distilled water is 1:(10 ~ 15); Two, modifying process: first paper pulp is discongested, then will discongest rear paper pulp and put into the improved chemical of step 1 preparation, be under 40 ~ 70 ℃ in temperature, proportion is that 20kHz ~ 25kHz, power are 400W ~ 600W ultrasonic wave Aided Modification 20 ~ 60min, namely finishes the modification of plant paper pulp fiber; Paper pulp described in the step 2 is kp softwood pulp, mercerization kp softwood pulp, sulfate hardwood pulp, sulfate process straw pulp or soda processes straw pulp.
The method of modifying of plant paper pulp fiber provided by the invention can destroy the cellulose fibre crystal structure, make the cellulose crystallite dislocation, destroys Hydrogenbond between fiber, makes cellulose fibre generation depolymerization, profit, curling, minute fine, plays corrasion; Make fiber divide fine fibrillation, increase fibre structure relax level and porous, reduce fluid by resistance, make under the identical prerequisite in filter paper aperture, the air permeability of filter paper improves greatly.
Filter paper of the present invention is to be made by the mercerization kp softwood pulp of the kp softwood pulp of 15 ~ 45 parts of plant pulp fiber modilications, 5 ~ 15 parts of sulfate hardwood pulps and 45 ~ 75 parts of plant pulp fiber modilications by weight; The filter paper air permeability is greater than 700L/m
2S and aperture are 30 ~ 50 μ m, and the mercerization kp softwood pulp of the plant pulp fiber modilication of described adding and the kp softwood pulp of plant pulp fiber modilication are that the method for modifying of the above-mentioned plant paper pulp fiber of foundation carries out modification.
The method for preparing filter paper is finished according to the following steps: one, slurry mixes: the ratio of paper pulp in the mercerization kp softwood pulp of the kp softwood pulp of 15 ~ 45 parts of plant pulp fiber modilications, 5 ~ 15 parts of sulfate hardwood pulps and 45 ~ 75 parts of plant pulp fiber modilications mixed, form mixed pulp; Two, making beating: mixed pulp is discongested 6 ~ 10min in defiberizing machine, then the paper pulp after will discongesting changes over to and continues in the trough-style pulp beater to discongest, disperse, and carry out light beating, keep between 10 ~ 18 ° of SR of former paper pulp beating degree, the quality percentage composition of paper pulp is controlled between 2 ~ 3% as far as possible; Three, copy paper: the quality percentage composition of paper pulp is diluted to 0.02 ~ 0.06% after will pulling an oar, and the paper pulp that dilutes is joined manufacture paper with pulp into low cost, air permeability in the page handshcet former greater than 700L/m
2S and aperture are at 30 ~ 50 μ m, 106 ~ 110g/m
2Filter paper.
The filter paper of the present invention preparation has been realized low-cost and has been had again the characteristic of smaller aperture due when keeping high air permeability.
Description of drawings
Fig. 1 is the electron-microscope scanning figure of the mercerization kp softwood pulp of the specific embodiment 11 modifications.Fig. 2 is the electron-microscope scanning figure of the mercerization kp softwood pulp of the specific embodiment 11 non-modified.Fig. 3 is the electron-microscope scanning figure of the kp softwood pulp of the specific embodiment 12 modifications.Fig. 4 is the electron-microscope scanning figure of the kp softwood pulp of the specific embodiment 12 non-modified.
The specific embodiment
The specific embodiment one: present embodiment provides the medicament of plant pulp fiber modilication:
The medicament of plant pulp fiber modilication is comprised of inorganic salts, distilled water and absolute ethyl alcohol; Wherein the mol ratio of inorganic salts and distilled water is 1:(10 ~ 15), the mol ratio of absolute ethyl alcohol and distilled water is 1:(10 ~ 15).
Zinc chloride has the effect of dissolving in the improved chemical of present embodiment preparation to paper pulp fiber, ethanol can accelerate medicament the fiber finer cell wall is permeated, simultaneously the metal ion in the medicament can with fiber on carboxyl etc. form the ionic bond coordination, for the modification of paper pulp fiber provides good prerequisite and basis.
The specific embodiment two: the difference of present embodiment and the specific embodiment one is: described inorganic salts are zinc chloride, calcium nitrate, magnesium chloride or calcium chloride perhaps are zinc chloride and calcium nitrate 1:(0.5 ~ 2 in molar ratio) mixture that mixes, zinc chloride and magnesium chloride be 1:(0.5 ~ 2 in molar ratio) mixture that mixes, zinc chloride and calcium chloride is 1:(0.5 ~ 2 in molar ratio) mixture that mixes, magnesium chloride and calcium nitrate is 1:(0.5 ~ 2 in molar ratio) mixture that mixes, calcium chloride and calcium nitrate are 1:(0.5 ~ 2 in molar ratio) mixture that mixes or calcium chloride and magnesium chloride 1:(0.5 ~ 2 in molar ratio) mixture that mixes.Other is identical with the specific embodiment one.
The specific embodiment three: present embodiment and one of the specific embodiment one or two difference are: the inorganic salts in the modification liquid described in the step 1 and the mol ratio of distilled water are 1:12, and the mol ratio of absolute ethyl alcohol and distilled water is 1:12.Other is identical with the specific embodiment one or two.
The specific embodiment four: one of present embodiment and specific embodiment one to three difference is: the inorganic salts in the modification liquid described in the step 1 and the mol ratio of distilled water are 1:14, and the mol ratio of absolute ethyl alcohol and distilled water is 1:14.Other is identical with the specific embodiment one or three.
The specific embodiment five: present embodiment provides the method for modifying of a Plants paper pulp fiber to finish according to the following steps
One, configuration improved chemical: inorganic salts, distilled water and absolute ethyl alcohol are mixed with improved chemical, inorganic salts in the wherein said improved chemical and the mol ratio of distilled water are 1:(10 ~ 15), the mol ratio of absolute ethyl alcohol and distilled water is 1:(10 ~ 15); Two, modifying process: first paper pulp is discongested, then will discongest rear paper pulp and put into the improved chemical of step 1 preparation, be under 40 ~ 70 ℃ in temperature, proportion is that 20kHz ~ 25kHz, power are 400W ~ 600W ultrasonic wave Aided Modification 20 ~ 60min, namely finishes the modification of plant paper pulp fiber; Paper pulp described in the step 2 is kp softwood pulp, mercerization kp softwood pulp, sulfate hardwood pulp, sulfate process straw pulp or soda processes straw pulp.
Adopt improved chemical and ultrasonic wave to the modification of mercerization fiber by present embodiment, make it keep the characteristics such as the mercerization fiber is smooth, mellow and full, the distortion fluid resistance is little simultaneously, make again fiber generation sub-wire and etching, make fiber better reduce fluid friction property and miniaturization, its filter paper of manufacturing paper with pulp can keep good air permeability simultaneously, the aperture that can keep again filter paper.
Present embodiment is destroyed fibrous crystal structure in the cellulose, makes crystallite dislocation in the cellulose, destroys Hydrogenbond between fiber, makes fiber generation depolymerization in the cellulose, profit, the variation such as curling and minute fine, plays corrasion; Make at last fiber divide fine fibrillation, increase fibre structure relax level and porous, reduce fluid by resistance, make under the identical prerequisite in filter paper aperture, the air permeability of filter paper improves greatly.
Its air permeability of filter paper that does not have the mercerization paper pulp after present embodiment method fibre modification to manufacture paper with pulp through the filter paper contrast that the mercerization paper pulp after the present embodiment method fibre modification is manufactured paper with pulp can improve 20% ~ 30%, and the filter paper strength character also can be increased; Although the filter paper contrast of manufacturing paper with pulp through the kp softwood pulp of present embodiment method fibre modification does not improve 10% ~ 14% through the filter paper filter paper aperture that the kp softwood pulp of present embodiment method fibre modification is manufactured paper with pulp, air permeability improves 60% ~ 80%.
The specific embodiment six: the difference of present embodiment and the specific embodiment five is: the inorganic salts described in the step 1 are zinc chloride, calcium nitrate, magnesium chloride or calcium chloride perhaps are zinc chloride and calcium nitrate 1:(0.5 ~ 2 in molar ratio) mixture that mixes, zinc chloride and magnesium chloride be 1:(0.5 ~ 2 in molar ratio) mixture that mixes, zinc chloride and calcium chloride is 1:(0.5 ~ 2 in molar ratio) mixture that mixes, magnesium chloride and calcium nitrate is 1:(0.5 ~ 2 in molar ratio) mixture that mixes, calcium chloride and calcium nitrate are 1:(0.5 ~ 2 in molar ratio) mixture that mixes or calcium chloride and magnesium chloride 1:(0.5 ~ 2 in molar ratio) mixture that mixes.Other is identical with the specific embodiment five.
The specific embodiment seven: present embodiment and one of the specific embodiment five or six difference are: the inorganic salts in the modification liquid described in the step 1 and the mol ratio of distilled water are 1:12, and the mol ratio of absolute ethyl alcohol and distilled water is 1:12.Other is identical with the specific embodiment five or six.
The specific embodiment eight: one of present embodiment and specific embodiment five to seven difference is: the inorganic salts in the modification liquid described in the step 1 and the mol ratio of distilled water are 1:14, and the mol ratio of absolute ethyl alcohol and distilled water is 1:14.Other is identical with the specific embodiment five or seven.
The specific embodiment nine: one of present embodiment and specific embodiment five to eight difference is: adopt ultrasonic wave auxiliary in the step 2, modification 30min under 45 ℃ of conditions namely finishes the modification of paper pulp fiber; Described ultrasonic wave frequency when work is that 20kHz, power are 400W.Other is identical with the specific embodiment five or eight.
The specific embodiment ten: one of present embodiment and specific embodiment five to nine difference is: adopt ultrasonic wave auxiliary in the step 2, modification 40min under 60 ℃ of conditions namely finishes the modification of paper pulp fiber; Described ultrasonic wave frequency when work is that 25kHz, power are 600W.Other is identical with the specific embodiment five or nine.
The specific embodiment 11: the concrete operation step of present embodiment is as follows:
One, configuration improved chemical: zinc chloride, distilled water, absolute ethyl alcohol mol ratio are mixed with improved chemical, and wherein the mol ratio of the zinc chloride in inorganic salts, the described improved chemical and distilled water is 1:12, and the mol ratio of absolute ethyl alcohol and distilled water is 1:12; Two, ultrasonically-modified: the improved chemical of the mercerization kp softwood pulp being put into the step 1 preparation, be that 20kHz, power are that the ultrasonic wave of 400W is auxiliary lower in frequency, modification 30min under 45 ℃ of conditions is through filtering, wash and be drying to obtain the mercerization kp softwood pulp through fibre modification.
Its performance indications of filter paper that the mercerization kp softwood pulp of the fibre modification of employing present embodiment preparation is manufactured paper with pulp are as follows: air permeability 1569.9L/m
2S, maximum diameter of hole 61.2 μ m, average pore size 58.7 μ m.
Adopt the mercerization kp softwood pulp identical with the present embodiment step 2, but do not pass through fibre modification, its performance indications of the filter paper of manufacturing paper with pulp are as follows: air permeability 1250.0L/m
2S, maximum diameter of hole 54.3 μ m, average pore size 49.1 μ m.
By contrast as can be known, air permeability improves 25.6%, and the maximum diameter of hole improves 12.7%, and average pore size improves 19.6%.
The mercerization kp softwood pulp carries out fibre modification electron-microscope scanning picture afterwards as shown in Figure 1 by this enforcement.
The mercerization kp softwood pulp by the electron-microscope scanning picture that do not adopt this enforcement and carry out fibre modification as shown in Figure 2.
Contrast as can be known by Fig. 1 and Fig. 2, adopt the fiber in the mercerization kp softwood pulp that the present embodiment fibre modification crosses obviously very thin than not adopting this enforcement to carry out in the mercerization kp softwood pulp of fibre modification fiber, and there are many tiny bifurcateds, this explanation fibre structure has produced lax, further sub-wire, form porous, can reduce fluid and pass through resistance.
The specific embodiment 12: the concrete operation step of present embodiment is as follows:
One, configuration improved chemical: zinc chloride, calcium chloride, distilled water, absolute ethyl alcohol mol ratio are mixed with improved chemical, wherein the mol ratio of the zinc chloride in inorganic salts, the described improved chemical and distilled water is 1:14, and the mol ratio of absolute ethyl alcohol and distilled water is 1:14; Two, ultrasonically-modified: the improved chemical of kp softwood pulp being put into the step 1 preparation, be that 25kHz, power are that the ultrasonic wave of 600W is auxiliary lower in frequency, modification 40min under 60 ℃ of conditions is through filtering, wash and be drying to obtain the kp softwood pulp of fibre modification; The mol ratio of the zinc chloride described in the step 1 and calcium chloride is 2:1.
Its performance indications of filter paper that the kp softwood pulp of the fibre modification of employing present embodiment preparation is manufactured paper with pulp are as follows: air permeability 276.1L/m
2S, maximum diameter of hole 41.8 μ m, average pore size 35.3 μ m.
Adopt the kp softwood pulp identical with the present embodiment step 2, but do not pass through fibre modification, its performance indications of the filter paper of manufacturing paper with pulp are as follows: air permeability 161.7L/m
2S, maximum diameter of hole 37.5 μ m, average pore size 31.2 μ m.
By contrast as can be known, air permeability improves 70.7%, and the maximum diameter of hole improves 11.5%, and average pore size improves 13.1%.
Kp softwood pulp carries out fibre modification electron-microscope scanning picture afterwards as shown in Figure 3 by this enforcement.
Kp softwood pulp by the electron-microscope scanning picture that do not adopt this enforcement and carry out fibre modification as shown in Figure 4.
Contrast as can be known by Fig. 3 and Fig. 4, adopt the fiber in the kp softwood pulp of present embodiment modification obviously very thin than not adopting this enforcement to carry out in the kp softwood pulp of fibre modification fiber, and there are many tiny bifurcateds, this explanation fibre structure has produced lax, further sub-wire, form porous, can reduce fluid and pass through resistance.
The specific embodiment 13: present embodiment provides a kind of filter paper:
Filter paper is to be made by the mercerization kp softwood pulp of the kp softwood pulp of 15 ~ 45 parts of plant pulp fiber modilications, 5 ~ 15 parts of sulfate hardwood pulps and 45 ~ 75 parts of plant pulp fiber modilications by weight by weight.
Filter paper to the present embodiment preparation detects as can be known, and air permeability is greater than 720L/m
2S, while aperture are at 30 ~ 50 μ m, and these three kinds of wood pulps and cotton linter pulp cost that present embodiment adopts reduce by 40 ~ 60%.
Adopt the filter paper and the contrast of existing filter paper of present embodiment preparation, under the prerequisite that is more or less the same in the aperture, the filter paper air permeability that present embodiment prepares has improved 20 ~ 50%.
The mercerization kp softwood pulp of the plant pulp fiber modilication of the described adding of present embodiment is according to the specific embodiment 11 modifications; The kp softwood pulp of the plant pulp fiber modilication of described adding is according to the specific embodiment 12 modifications.
The specific embodiment 14: present embodiment and the specific embodiment 13 differences are: described filter paper is that the mercerization kp softwood pulp by the kp softwood pulp of 30 parts of plant pulp fiber modilications, 10 parts of sulfate hardwood pulps and 60 parts of plant pulp fiber modilications is prepared from by weight.Other is identical with the specific embodiment 13.
The specific embodiment 15: present embodiment provides a kind of method for preparing filter paper, and concrete operation step is as follows:
One, slurry mixes: the ratio of paper pulp in the mercerization kp softwood pulp of the kp softwood pulp of 15 ~ 45 parts of plant pulp fiber modilications, 5 ~ 15 parts of sulfate hardwood pulps and 45 ~ 75 parts of plant pulp fiber modilications mixed, form mixed pulp; Two, making beating: mixed pulp is discongested 6 ~ 10min in defiberizing machine, then the paper pulp after will discongesting changes over to and continues in the trough-style pulp beater to discongest, disperse, and carry out light beating, keep between 10 ~ 18 ° of SR of former paper pulp beating degree, the quality percentage composition of paper pulp is controlled between 2 ~ 3% as far as possible; Three, copy paper: the quality percentage composition of paper pulp is diluted to 0.02 ~ 0.06% after will pulling an oar, and the paper pulp that dilutes is joined in the page handshcet former manufacture paper with pulp into 106 ~ 110g/m
2Filter paper.
Filter paper to the present embodiment preparation detects as can be known, and air permeability is greater than 720L/m
2S, while aperture are at 30 ~ 50 μ m, and these three kinds of wood pulps and cotton linter pulp cost that present embodiment adopts reduce by 40 ~ 60%.
Adopt the filter paper and the contrast of existing filter paper of present embodiment preparation, under the prerequisite that is more or less the same in the aperture, the filter paper air permeability that present embodiment prepares has improved 20 ~ 50%.
The mercerization kp softwood pulp of the plant pulp fiber modilication of the described adding of present embodiment is according to the specific embodiment 11 modifications; The kp softwood pulp of the plant pulp fiber modilication of described adding is according to the specific embodiment 12 modifications.
The specific embodiment 16: present embodiment and the specific embodiment 15 differences are: the mixed pulp described in the step 1 is mixed by the mercerization kp softwood pulp of the kp softwood pulp of 30 parts of plant pulp fiber modilications, 10 parts of sulfate hardwood pulps and 60 parts of plant pulp fiber modilications.Other is identical with the specific embodiment 15.
The specific embodiment 17: present embodiment and one of the specific embodiment 15 or 16 difference are: paper pulp time of discongesting in defiberizing machine is 8min in the step 2.Other is identical with the specific embodiment 15 or 16.
Adopt its performance indications of filter paper of present embodiment preparation as follows: air permeability 727.25L/m
2S, maximum diameter of hole 47.8 μ m, average pore size 43.2 μ m.
Adopt the filter paper and the contrast of existing filter paper of present embodiment preparation, under the prerequisite that is more or less the same in the aperture, the filter paper air permeability that present embodiment prepares has improved 31.25%.
Claims (6)
1. the method for modifying of plant paper pulp fiber, the method of modifying that it is characterized in that the plant paper pulp fiber is finished according to the following steps: one, configuration improved chemical: inorganic salts, distilled water and absolute ethyl alcohol are mixed with improved chemical, inorganic salts in the wherein said improved chemical and the mol ratio of distilled water are 1:(10 ~ 15), the mol ratio of absolute ethyl alcohol and distilled water is 1:(10 ~ 15); Two, modifying process: first paper pulp is discongested, then will discongest rear paper pulp and put into the improved chemical of step 1 preparation, be under 40 ~ 70 ℃ in temperature, proportion is that 20kHz ~ 25kHz, power are 400W ~ 600W ultrasonic wave Aided Modification 20 ~ 60min, namely finishes the modification of plant paper pulp fiber; Paper pulp described in the step 2 is kp softwood pulp, mercerization kp softwood pulp, sulfate hardwood pulp, sulfate process straw pulp or soda processes straw pulp.
2. the method for modifying of plant paper pulp fiber according to claim 1, it is characterized in that the inorganic salts described in the step 1 are zinc chloride, calcium nitrate, magnesium chloride or calcium chloride perhaps are zinc chloride and calcium nitrate 1:(0.5 ~ 2 in molar ratio) mixture that mixes, zinc chloride and magnesium chloride be 1:(0.5 ~ 2 in molar ratio) mixture that mixes, zinc chloride and calcium chloride is 1:(0.5 ~ 2 in molar ratio) mixture that mixes, magnesium chloride and calcium nitrate is 1:(0.5 ~ 2 in molar ratio) mixture that mixes, calcium chloride and calcium nitrate are 1:(0.5 ~ 2 in molar ratio) mixture that mixes or calcium chloride and magnesium chloride 1:(0.5 ~ 2 in molar ratio) mixture that mixes.
3. the filter paper that utilizes the method for modifying of plant paper pulp fiber claimed in claim 1 to be prepared is characterized in that filter paper is to be made by the mercerization kp softwood pulp of the kp softwood pulp of 15 ~ 45 parts of plant pulp fiber modilications, 5 ~ 15 parts of sulfate hardwood pulps and 45 ~ 75 parts of plant pulp fiber modilications by weight; The filter paper air permeability is greater than 700L/m
2S and aperture are 30 ~ 50 μ m, the preparation method of the mercerization kp softwood pulp of the plant pulp fiber modilication of described adding is as follows: one, configuration improved chemical: zinc chloride, distilled water, absolute ethyl alcohol mol ratio are mixed with improved chemical, wherein the mol ratio of the zinc chloride in inorganic salts, the described improved chemical and distilled water is 1:12, and the mol ratio of absolute ethyl alcohol and distilled water is 1:12; Two, ultrasonically-modified: the improved chemical of the mercerization kp softwood pulp being put into the step 1 preparation, be that 20kHz, power are that the ultrasonic wave of 400W is auxiliary lower in frequency, modification 30min under 45 ℃ of conditions is through filtering, wash and be drying to obtain the mercerization kp softwood pulp of plant pulp fiber modilication; The preparation method of the kp softwood pulp of the plant pulp fiber modilication of described adding is as follows: 1., the configuration improved chemical: zinc chloride, calcium chloride, distilled water, absolute ethyl alcohol mol ratio are mixed with improved chemical, wherein the mol ratio of the zinc chloride in inorganic salts, the described improved chemical and distilled water is 1:14, and the mol ratio of absolute ethyl alcohol and distilled water is 1:14; 2., ultrasonically-modified: the improved chemical of kp softwood pulp being put into the step 1 preparation, be that 25kHz, power are that the ultrasonic wave of 600W is auxiliary lower in frequency, modification 40min under 60 ℃ of conditions is through filtering, wash and be drying to obtain the kp softwood pulp of fibre modification; The zinc chloride of step described in 1. and the mol ratio of calcium chloride are 2:1.
4. filter paper according to claim 3 is characterized in that filter paper is that mercerization kp softwood pulp by the kp softwood pulp of 30 parts of plant pulp fiber modilications, 10 parts of sulfate hardwood pulps and 60 parts of plant pulp fiber modilications is prepared from by weight.
5. the method for preparing the described filter paper of claim 3, the preparation method who it is characterized in that filter paper finishes according to the following steps: one, slurry mixes: the ratio of paper pulp in the mercerization kp softwood pulp of the kp softwood pulp of 15 ~ 45 parts of plant pulp fiber modilications, 5 ~ 15 parts of sulfate hardwood pulps and 45 ~ 75 parts of plant pulp fiber modilications mixed, form mixed pulp; Two, making beating: mixed pulp is discongested 6 ~ 10min in defiberizing machine, then the paper pulp after will discongesting changes over to and continues in the trough-style pulp beater to discongest, disperse, and carry out light beating, keep between 10 ~ 18 ° of SR of former paper pulp beating degree, the quality percentage composition of paper pulp is controlled between 2 ~ 3% as far as possible; Three, copy paper: the quality percentage composition of paper pulp is diluted to 0.02 ~ 0.06% after will pulling an oar, and the paper pulp that dilutes is joined manufacture paper with pulp into low cost, air permeability in the page handshcet former greater than 700L/m
2S and aperture are at 30 ~ 50 μ m, 106 ~ 110g/m
2Filter paper.
6. method according to claim 5 is characterized in that the mixed pulp described in the step 1 is mixed by the mercerization kp softwood pulp of the kp softwood pulp of 30 parts of plant pulp fiber modilications, 10 parts of sulfate hardwood pulps and 60 parts of plant pulp fiber modilications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110157294 CN102230297B (en) | 2011-06-13 | 2011-06-13 | Plant paper pulp fiber modifying method, and filter paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110157294 CN102230297B (en) | 2011-06-13 | 2011-06-13 | Plant paper pulp fiber modifying method, and filter paper and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230297A CN102230297A (en) | 2011-11-02 |
| CN102230297B true CN102230297B (en) | 2013-01-09 |
Family
ID=44842896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110157294 Expired - Fee Related CN102230297B (en) | 2011-06-13 | 2011-06-13 | Plant paper pulp fiber modifying method, and filter paper and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102230297B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995495B (en) * | 2012-10-31 | 2015-04-22 | 蚌埠首创滤清器有限公司 | Modified attapulgite-containing filter paper and preparation method thereof |
| CN102995496B (en) * | 2012-10-31 | 2015-07-22 | 蚌埠首创滤清器有限公司 | Filter paper for gasoline filter and preparation method of filter paper |
| CN102953295B (en) * | 2012-12-08 | 2015-02-25 | 杭州特种纸业有限公司 | Method for preparing high-strength cured filter paper |
| CA2976332A1 (en) * | 2015-02-10 | 2016-08-18 | Gp Cellulose Gmbh | Filter medium and filters made therefrom |
| JP6600777B2 (en) * | 2015-04-23 | 2019-11-06 | サンノプコ株式会社 | Dissolving pulp composition and method for producing viscose rayon |
| CN104878642A (en) * | 2015-05-04 | 2015-09-02 | 杭州特种纸业有限公司 | Quantitative filter paper and preparing method and application thereof |
| CN106812018A (en) * | 2017-03-28 | 2017-06-09 | 广西金桂浆纸业有限公司 | The manufacture craft of energy-conserving and environment-protective cupstock |
| CN106835810A (en) * | 2017-03-28 | 2017-06-13 | 广西金桂浆纸业有限公司 | The manufacture craft of high bulk cupstock |
| CN107044069A (en) * | 2017-03-28 | 2017-08-15 | 广西金桂浆纸业有限公司 | The manufacture craft of cupstock |
| CN106988151A (en) * | 2017-03-28 | 2017-07-28 | 广西金桂浆纸业有限公司 | The manufacture craft of recyclable recycling cupstock |
| CN106988152A (en) * | 2017-03-28 | 2017-07-28 | 广西金桂浆纸业有限公司 | A kind of manufacture craft of cupstock |
| CN109930424A (en) * | 2017-12-15 | 2019-06-25 | 中国制浆造纸研究院有限公司 | A method of improving air paper body paper air permeability |
| CN108797182A (en) * | 2018-06-14 | 2018-11-13 | 华南理工大学 | A method of paper pulp fiber retention and intensity are improved based on fibrillation fiber |
| CN110113695A (en) * | 2019-05-20 | 2019-08-09 | 东莞市韵源电子有限公司 | Drum paper trunk molding machine |
| CN114182574B (en) * | 2020-09-14 | 2023-11-10 | 杭州特种纸业有限公司 | Ultrafast qualitative filter paper and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109125A (en) * | 1994-09-10 | 1995-09-27 | 朱国华 | Manufacture of neutral adhesive-applied fiber of alkyl ketene dipolymer |
| CN101545231A (en) * | 2009-05-07 | 2009-09-30 | 金东纸业（江苏）股份有限公司 | Functionalized paper pulp, manufacture method and application thereof |
| CN101613977A (en) * | 2009-07-15 | 2009-12-30 | 金东纸业（江苏）股份有限公司 | Fortifying fibre for making paper and its production and application |
| CN102002887A (en) * | 2010-08-20 | 2011-04-06 | 北京联创佳艺影像新材料技术有限公司 | Treating fluid for special medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20031904A (en) * | 2003-12-23 | 2005-06-24 | Kemira Oyj | Process for modifying a lignocellulosic product |
-
2011
- 2011-06-13 CN CN 201110157294 patent/CN102230297B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109125A (en) * | 1994-09-10 | 1995-09-27 | 朱国华 | Manufacture of neutral adhesive-applied fiber of alkyl ketene dipolymer |
| CN101545231A (en) * | 2009-05-07 | 2009-09-30 | 金东纸业（江苏）股份有限公司 | Functionalized paper pulp, manufacture method and application thereof |
| CN101613977A (en) * | 2009-07-15 | 2009-12-30 | 金东纸业（江苏）股份有限公司 | Fortifying fibre for making paper and its production and application |
| CN102002887A (en) * | 2010-08-20 | 2011-04-06 | 北京联创佳艺影像新材料技术有限公司 | Treating fluid for special medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102230297A (en) | 2011-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102230297B (en) | Plant paper pulp fiber modifying method, and filter paper and preparation method thereof | |
| CN107722338B (en) | Preparation method of nano-cellulose aerogel and nano-cellulose aerogel | |
| RU2530067C2 (en) | Method of producing nano-fibrillar cellulose gels | |
| CN110130136A (en) | A kind of preparation method of lignocellulosic nanofiber | |
| JP5857881B2 (en) | Fine fibrous cellulose and method for producing the same, non-woven fabric | |
| CN102080346A (en) | Application of cation nano microcrystalline cellulose as paper reinforcing agent | |
| EP2616589B1 (en) | Method for improving the removal of water | |
| CN102080343B (en) | Application of anion nano microcrystalline cellulose as paper reinforcer | |
| CN110067158B (en) | Paper and preparation method and application thereof | |
| CN106867042A (en) | The tape casting prepares nano-cellulose/chitosan/polyvinyl alcohol composite membrane and its application in biological antibiotic film | |
| CN108085766B (en) | Cellulose nano fibril reinforced acrylic fiber and preparation method and application thereof | |
| CN104562823A (en) | Synchronization method for preparing microfibrillated cellulose and application of microfibrillated cellulose in strengthening of paper | |
| Khiari et al. | Efficiency of cellulose carbonates to produce cellulose nanofibers | |
| CN103726379A (en) | Application of modified nano-microcrystalline cellulose serving as papermaking strengthening agent | |
| Wang et al. | Fabrication of optically transparent and strong nanopaper from cellulose nanofibril based on corncob residues | |
| CN108484782A (en) | A kind of nano cellulose crystal and preparation method thereof that carboxylated is modified | |
| CN103321080A (en) | ECF bleaching technology of fast growing poplar by sulfate pulp bio-chemical method | |
| JPH0418186A (en) | Production of fibrillated pulp | |
| CN107653723A (en) | A kind of achievable chemi-mechanical pulp microfibril and the method for strengthening paper physical intensity | |
| CN114481681B (en) | Cellulose/polylactic acid fiber composite paper and preparation method thereof | |
| CN113278172B (en) | Preparation method of cellulose/aramid nano-fiber in-situ composite fiber | |
| JP6691278B1 (en) | Method for analyzing structure containing fibers and inorganic particles | |
| JP2015021210A (en) | Method for manufacturing porous sheet | |
| Dasong | Hemp nanocellulose: fabrication, characterisation and application | |
| CN106087562A (en) | Paper strengthening agent and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20180613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |