CN109137625B - Method for manufacturing cellulose paper with special structure - Google Patents
Method for manufacturing cellulose paper with special structure Download PDFInfo
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- CN109137625B CN109137625B CN201811033344.7A CN201811033344A CN109137625B CN 109137625 B CN109137625 B CN 109137625B CN 201811033344 A CN201811033344 A CN 201811033344A CN 109137625 B CN109137625 B CN 109137625B
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- pulp
- paper
- chemical fiber
- special
- special structure
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Classifications
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- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/14—Making cellulose wadding, filter or blotting paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
- D21G3/04—Doctors for drying cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G7/00—Damping devices
-
- 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
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
Abstract
The invention discloses a method for manufacturing cellulose paper with a special structure, which comprises the following specific steps: weighing a certain amount of bleached sulfate wood pulp, cotton pulp and chemical fiber; then disintegrating, pulping the bleached sulfate wood pulp, the cotton pulp and the chemical fiber respectively; blending the pulped bleached sulfate wood pulp, cotton pulp and chemical fiber into a pulp blending bin, mixing, adding a chemical auxiliary agent, and uniformly mixing to obtain mixed pulp; wet papermaking and forming the mixed slurry by an inclined wire former, forming a paper surface with a special structure in a large cylinder, humidifying, and cutting into finished products; and humidifying the paper sheets before cutting by using an ultrasonic atomization humidifier. The special embossing groove made by the invention enlarges the specific surface area, changes the advancing route of the smoke in the groove filter stick, and improves the inertial collision and diffusion deposition of the smoke particle phase object in the groove filter stick, thereby having good filtering effect on the smoke particle phase object and effectively reducing the tar content in the cigarette smoke.
Description
Technical Field
The invention belongs to the field of fiber paper manufacturing, and relates to a manufacturing method of special-structure cellulose paper.
Background
The filter stick (filter tip) for cigarette is a cigarette matching product and occupies an extremely important position in cigarette manufacture. The smoke generated by burning the tobacco shreds contains harmful substances such as tar and nicotine, so that the tar and the harm are reduced, and the smoking safety is improved, thereby becoming a common important subject in the tobacco industry of China. The application of the grooved filter stick is one of the most effective technical measures for greatly reducing the tar harm of the cigarette.
The groove filter stick is made by wrapping an acetate fiber tow filter core by combining cellulose paper and filter stick forming paper after the cellulose paper is grooved by a special embossing wheel, and meanwhile, the existing paper can be broken when passing through a metal embossing groove sheave, and the groove shape is unstable.
Disclosure of Invention
The invention aims to provide a manufacturing method of special-structure cellulose paper, which enlarges the specific surface area of a special embossing groove made of the special-structure cellulose paper, changes the advancing route of smoke in a groove filter stick, and improves the inertial collision and diffusion deposition of smoke particulate matters in the groove filter stick, thereby having very good filtering effect on the smoke particulate matters, effectively reducing the tar content in the cigarette smoke, and being a very effective selective harm reduction means.
The special-structure cellulose paper prepared by the invention has higher strength, air permeability and tear resistance, the embossing groove does not break, the groove has good stiffness, the groove shape of the formed groove filter stick is clear, the cut is parallel and level, the surface is clean and smooth, no wrinkle exists, the lap is firm, and the groove is neat and has no raised edge.
The paper surface special structure prepared by the invention can ensure that paper sheets play a role of buffering when passing through the metal embossing groove pulley, and the pressed groove can not be broken, thereby solving the problems that the paper surface of the existing paper has no special structure and the paper sheets can be broken when passing through the metal embossing groove pulley.
The purpose of the invention can be realized by the following technical scheme:
a manufacturing method of cellulose paper with a special structure comprises the following specific manufacturing processes:
firstly, weighing a certain amount of bleached sulfate wood pulp, cotton pulp and chemical fiber; wherein the mass ratio of the bleached sulfate wood pulp to the cotton pulp to the chemical fiber is 5: 4: 1, the content of alpha fibers in the cotton pulp is more than 98 percent, the size of viscose fibers in the chemical fibers is 1.0 dX 4mm, wherein d is the abbreviation of a Denier unit of the thickness of the chemical fibers;
secondly, respectively disintegrating the bleached kraft pulp, the cotton pulp and the chemical fiber weighed in the first step, and placing the bleached kraft pulp in an untapped pulp bin A, the cotton pulp in an untapped pulp bin B and the chemical fiber in an untapped pulp bin C after disintegration; wherein the bleached sulfate wood pulp disintegration concentration is 4-4.5%, the cotton pulp disintegration concentration is 5-5.5%, and the chemical fiber disintegration concentration is 1%;
thirdly, pulping the bleached sulfate wood pulp, the cotton pulp and the chemical fiber respectively; wherein the bleached kraft pulp is beaten by a double disc mill, the beating degree is 19-20 degrees SR, the wet weight is 16-17g, the cotton pulp is beaten by a refiner, the beating degree is 25-26 degrees SR, the wet weight is 19-20g, and the chemical fiber is circularly treated for 30min by a high-frequency defibrator;
step four, the bleached sulfate wood pulp, the cotton pulp and the chemical fiber processed in the step three are mixed in a pulp mixing bin, and then the chemical additives are added and mixed uniformly to obtain mixed pulp; wherein the chemical auxiliary agent is prepared by mixing 5% of dry strength agent and 1% of wet strength agent, wherein the dry strength agent is guar gum, and the wet strength agent is polyamide polyepichlorohydrin resin;
fifthly, wet-process papermaking forming is carried out on the mixed slurry prepared in the fourth step through an inclined net forming device, a paper surface with a special structure is formed in a large cylinder, and the paper surface is cut into finished products after humidification treatment; the specific forming process of the paper surface with the special structure comprises the following steps: the paper sheet manufactured and formed by the wet method is formed into small transverse wrinkles at the stripping position of a big cylinder by a special scraper, the wrinkling moisture is 10-12%, the wrinkling rate is 43-45%, the paper sheet is dried by a drying cylinder for 4.5-5% and then is finished by a soft calender (the finishing function is to ensure that the wrinkle height is consistent), the wrinkles are flattened when the moisture is too large, and the finishing function cannot be realized when the moisture is too small and the wrinkles are softened; wherein the special scraper is a movable double-airbag DSP scraper and a stainless steel blade, the thickness is 1.2mm, the width is 115mm, the edge angle of the scraper is 18 degrees, and the included angle between the scraper and a drying cylinder is 26 degrees; the special structure of the paper surface can play a role of buffering when the paper passes through the metal embossing groove sheave, and the pressed groove cannot crack (the paper surface has no special structure and can crack when passing through the metal embossing groove sheave);
sixthly, humidifying the paper sheets before cutting by using an ultrasonic atomization humidifier, and controlling the moisture of the finished paper to be 7-8%; because the temperature of the groove filter stick embossing groove wheel is 160-200 ℃, the groove shape deformation amount is small after the groove pressed by the cellulose paper subjected to humidification treatment is shaped at high temperature, the groove shape of the formed groove filter stick is clear, and the stiffness is good.
The invention has the beneficial effects that:
the special embossing groove made of the special structure cellulose paper enlarges the specific surface area, changes the traveling route of smoke in the groove filter stick, and improves the inertial collision and diffusion deposition of smoke particulate matters in the groove filter stick, so the special embossing groove has a very good filtering effect on the smoke particulate matters, can effectively reduce the tar content in the cigarette smoke, and is a very effective selective harm reduction means.
The special-structure cellulose paper prepared by the invention has higher strength, air permeability and tear resistance, the embossing groove does not break, the groove has good stiffness, the groove shape of the formed groove filter stick is clear, the cut is parallel and level, the surface is clean and smooth, no wrinkle exists, the lap is firm, and the groove is neat and has no raised edge.
The paper surface special structure prepared by the invention can play a role of buffering when paper passes through the metal embossing groove sheave, and the pressed groove can not be broken, thereby solving the problem that the paper surface of the paper has no special structure and the paper can be broken when the paper passes through the metal embossing groove sheave.
Detailed Description
A manufacturing method of cellulose paper with a special structure comprises the following specific manufacturing processes:
step one, according to the mass ratio of 5: 4: 1 weighing bleached sulfate wood pulp, cotton pulp and chemical fiber; wherein the content of methyl fiber in the cotton pulp is more than 98 percent, the size of viscose fiber in the chemical fiber is 1.0 dX 4mm, wherein d is the abbreviation of Denier of the unit of fineness of the chemical fiber, and bleached sulfate wood pulp is Canada produced North wood pulp;
secondly, respectively disintegrating the bleached kraft pulp, the cotton pulp and the chemical fiber weighed in the first step, and placing the bleached kraft pulp in an untapped pulp bin A, the cotton pulp in an untapped pulp bin B and the chemical fiber in an untapped pulp bin C after disintegration; wherein the bleached sulfate wood pulp disintegration concentration is 4-4.5%, the cotton pulp disintegration concentration is 5-5.5%, and the chemical fiber disintegration concentration is 1%;
thirdly, beating the bleached kraft pulp by using a double disc mill, wherein the beating degree is 19-20 DEG SR, the wet weight is 16-17g, beating the cotton pulp by using a refiner, the beating degree is 25-26 DEG SR, the wet weight is 19-20g, and the chemical fiber is circularly treated for 30min by a high-frequency defibrator;
step four, the bleached sulfate wood pulp, the cotton pulp and the chemical fiber processed in the step three are mixed in a pulp mixing bin, and then the chemical additives are added and mixed uniformly to obtain mixed pulp; wherein the chemical auxiliary agent is prepared by mixing 5% of dry strength agent and 1% of wet strength agent, wherein the dry strength agent is guar gum, and the wet strength agent is polyamide polyepichlorohydrin resin;
fifthly, wet-process papermaking forming is carried out on the mixed slurry prepared in the fourth step through an inclined net forming device, a paper surface with a special structure is formed in a large cylinder, and the paper surface is cut into finished products after humidification treatment; the specific forming process of the paper surface with the special structure comprises the following steps: the paper sheet manufactured and formed by the wet method is formed into small transverse wrinkles at the stripping position of a big cylinder by a special scraper, the wrinkling moisture is 10-12%, the wrinkling rate is 43-45%, the paper sheet is dried by a drying cylinder for 4.5-5% and then is finished by a soft calender (the finishing function is to ensure that the wrinkle height is consistent), the wrinkles are flattened when the moisture is too large, and the finishing function cannot be realized when the moisture is too small and the wrinkles are softened; wherein the special scraper is a movable double-airbag DSP scraper and a stainless steel blade, the thickness is 1.2mm, the width is 115mm, the edge angle of the scraper is 18 degrees, and the included angle between the scraper and a drying cylinder is 26 degrees; the special structure of the paper surface can play a role of buffering when the paper passes through the metal embossing groove sheave, and the pressed groove cannot crack (the paper surface has no special structure and can crack when passing through the metal embossing groove sheave);
sixthly, humidifying the paper sheets before cutting by using an ultrasonic atomization humidifier, and controlling the moisture of the finished paper to be 7-8%; because the temperature of the groove filter stick embossing groove wheel is 160-200 ℃, the groove shape deformation amount is small after the groove pressed by the cellulose paper subjected to humidification treatment is shaped at high temperature, the groove shape of the formed groove filter stick is clear, and the stiffness is good.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A method for manufacturing cellulose paper with a special structure is characterized by comprising the following specific manufacturing processes:
firstly, weighing a certain amount of bleached sulfate wood pulp, cotton pulp and chemical fiber;
secondly, respectively disintegrating the bleached kraft pulp, the cotton pulp and the chemical fiber weighed in the first step, and placing the bleached kraft pulp in an untapped pulp bin A, the cotton pulp in an untapped pulp bin B and the chemical fiber in an untapped pulp bin C after disintegration;
thirdly, pulping the bleached sulfate wood pulp, the cotton pulp and the chemical fiber respectively;
step four, the bleached sulfate wood pulp, the cotton pulp and the chemical fiber processed in the step three are mixed in a pulp mixing bin, and then the chemical additives are added and mixed uniformly to obtain mixed pulp;
fifthly, wet-process papermaking forming is carried out on the mixed slurry prepared in the fourth step through an inclined net forming device, a paper surface with a special structure is formed in a large cylinder, and the paper surface is cut into finished products after humidification treatment;
sixthly, humidifying the paper sheets before cutting by using an ultrasonic atomization humidifier, and controlling the moisture of the finished paper to be 7-8%;
the specific forming process of the special structure paper surface in the fifth step is as follows: forming small transverse wrinkles on paper sheets manufactured and formed by a wet method at a large cylinder stripping position by a special scraper, wherein the wrinkling moisture is 10-12%, the wrinkling rate is 43-45%, and the paper sheets are finished by a soft calender after being dried by a drying cylinder for 4.5-5% moisture;
the special scraper is a movable double-air-bag DSP scraper and is a stainless steel blade, the thickness of the special scraper is 1.2mm, the width of the special scraper is 115mm, and the edge angle of the special scraper is 18 DEGoDoctor to dryer angle 26o。
2. The method of producing a special structural cellulose paper as claimed in claim 1, characterized in that the mass ratio of bleached kraft pulp, cotton pulp and chemical fiber in the first step is 5: 4: 1.
3. the method of producing a cellulose paper of special structure according to claim 1, wherein the bleached sulfate pulp has a pulp disintegration concentration of 4 to 4.5%, a cotton pulp disintegration concentration of 5 to 5.5%, and a chemical fiber disintegration concentration of 1% in the second step.
4. The method for producing a cellulose paper of special structure according to claim 1, characterized in that the bleached kraft pulp in the third step is beaten with a double disc mill with a beating degree of 19 to 20oSR, wet weight 16-17g, beating cotton pulp with refiner, beating degree 25-26oSR, wet weight 19-20g, chemical fiber through high frequency fluffer circulation treatment for 30 min.
5. The method for producing a cellulose paper with a special structure according to claim 1, wherein the auxiliary chemicals in the fourth step are prepared by mixing 5% of dry strength agent and 1% of wet strength agent.
6. The method for producing a cellulose paper with a special structure according to claim 5, wherein the dry strength agent is guar gum and the wet strength agent is polyamide-epichlorohydrin resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033344.7A CN109137625B (en) | 2018-09-05 | 2018-09-05 | Method for manufacturing cellulose paper with special structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033344.7A CN109137625B (en) | 2018-09-05 | 2018-09-05 | Method for manufacturing cellulose paper with special structure |
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| Publication Number | Publication Date |
|---|---|
| CN109137625A CN109137625A (en) | 2019-01-04 |
| CN109137625B true CN109137625B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811033344.7A Active CN109137625B (en) | 2018-09-05 | 2018-09-05 | Method for manufacturing cellulose paper with special structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112761029A (en) * | 2020-12-23 | 2021-05-07 | 浙江华丰纸业科技有限公司 | Raw paper of groove tip rod and production method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158133A (en) * | 2007-11-16 | 2008-04-09 | 中国制浆造纸研究院 | Manufacturing technology of cannelure nozzle rod base paper for cigarette |
| CN102134816A (en) * | 2010-12-06 | 2011-07-27 | 云南玉溪卷烟厂滤嘴棒分厂 | Manufacturing process of coke-reducing molding paper of net groove |
| CN105200843A (en) * | 2015-09-01 | 2015-12-30 | 云南瑞升烟草技术（集团）有限公司 | Drying groove paper for filter rod and preparation method thereof |
| CN106436466A (en) * | 2016-09-30 | 2017-02-22 | 浙江晶鑫特种纸业有限公司 | Preparation process of finely-corrugated pure wood pulp absorbent paper |
| CN106666817A (en) * | 2017-01-07 | 2017-05-17 | 云南中烟工业有限责任公司 | Cigarette paper with crinkled internal surface and preparation method thereof |
-
2018
- 2018-09-05 CN CN201811033344.7A patent/CN109137625B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158133A (en) * | 2007-11-16 | 2008-04-09 | 中国制浆造纸研究院 | Manufacturing technology of cannelure nozzle rod base paper for cigarette |
| CN102134816A (en) * | 2010-12-06 | 2011-07-27 | 云南玉溪卷烟厂滤嘴棒分厂 | Manufacturing process of coke-reducing molding paper of net groove |
| CN105200843A (en) * | 2015-09-01 | 2015-12-30 | 云南瑞升烟草技术（集团）有限公司 | Drying groove paper for filter rod and preparation method thereof |
| CN106436466A (en) * | 2016-09-30 | 2017-02-22 | 浙江晶鑫特种纸业有限公司 | Preparation process of finely-corrugated pure wood pulp absorbent paper |
| CN106666817A (en) * | 2017-01-07 | 2017-05-17 | 云南中烟工业有限责任公司 | Cigarette paper with crinkled internal surface and preparation method thereof |
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| CN109137625A (en) | 2019-01-04 |
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