CN113062146A - Antibacterial cultural paper and manufacturing method thereof - Google Patents
Antibacterial cultural paper and manufacturing method thereof Download PDFInfo
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- CN113062146A CN113062146A CN202110418713.XA CN202110418713A CN113062146A CN 113062146 A CN113062146 A CN 113062146A CN 202110418713 A CN202110418713 A CN 202110418713A CN 113062146 A CN113062146 A CN 113062146A
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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
-
- 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
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- 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
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
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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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
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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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
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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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Pest Control & Pesticides (AREA)
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Abstract
The invention relates to the technical field of papermaking, and provides antibacterial cultural paper and a manufacturing method thereof, wherein the method comprises the following steps: s1, mixing the bleached sulfate chemical pulp and the alkaline hydrogen peroxide bleached mechanical pulp; the alkaline hydrogen peroxide bleaching mechanical pulp contains more than 10 wt% of camphorwood raw materials; s2, adding a cation fixing agent after the pulp is prepared, and making paper to obtain wet paper; and S3, drying the wet paper and performing surface sizing, wherein the surface sizing is performed by adopting a solution containing copper zinc sulfide pyridine to obtain the antibacterial cultural paper. In the present invention, the antibacterial cultural paper contains camphor cation immobilizers and copper zinc pyrithione components. The invention mainly aims at the antibacterial cultural paper, can meet the basic requirements of printing and notebook paper, and has excellent antibacterial and antivirus effects. The product of the invention has large potential market and very good production and development values.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to antibacterial cultural paper and a manufacturing method thereof.
Background
With the continuous improvement of the living standard of the people in China, no matter the living paper or the industrial paper, bacteria or viruses can be resisted and removed in many occasions. Among them, some papers for writing and printing such as valuable documents, diaries, books, and accounts are generally easily destroyed by mold during the collection process. If the paper itself has the function of resisting bacteria, the preservation of documents, paintings and calligraphy, securities and the like has higher insurance coefficient. During the epidemic period of some infectious diseases, some products such as books, books and magazines, which are exposed to bacteria and viruses, may cause the risk of infection of readers, and if the paper itself is antibacterial and antivirus, the circulation link of the infectious diseases can be controlled to a certain extent.
Paper having an antibacterial effect may be referred to as antibacterial paper, and generally contains an antibacterial component. At present, the antibacterial property and safety of the existing antibacterial paper are still to be improved.
Disclosure of Invention
In view of the above, the present invention aims to provide an antibacterial cultural paper and a manufacturing method thereof, wherein the antibacterial cultural paper has excellent antibacterial and antivirus effects, can meet basic requirements for printing and notebook use, and has good application safety.
The invention provides antibacterial cultural paper, which is prepared by taking bleached sulfate chemical pulp and alkaline hydrogen peroxide bleached mechanical pulp as fiber raw materials, wherein the alkaline hydrogen peroxide bleached mechanical pulp contains more than 10 wt% of camphorwood raw materials; the antibacterial cultural paper contains camphor cation fixings and pyridine sulfur copper zinc components.
The invention provides a manufacturing method of antibacterial cultural paper, which comprises the following steps:
s1, mixing the bleached sulfate chemical pulp and the alkaline hydrogen peroxide bleached mechanical pulp; the alkaline hydrogen peroxide bleaching mechanical pulp contains more than 10 wt% of camphorwood raw materials;
s2, adding a cation fixing agent after the pulp is prepared, and making paper to obtain wet paper;
and S3, drying the wet paper and performing surface sizing, wherein the surface sizing is performed by adopting a solution containing copper zinc sulfide pyridine to obtain the antibacterial cultural paper.
In embodiments of the present invention, the bleached sulfate chemical pulp is bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp;
the alkaline hydrogen peroxide bleaching mechanical pulp adopts 10-40% of camphorwood raw material and 60-90% of poplar raw material.
Further, the weight ratio of the bleached sulfate softwood chemical pulp to the bleached sulfate hardwood chemical pulp to the alkaline hydrogen peroxide bleached mechanical pulp is 10-20%: 20-30%: 50-70%.
In the embodiment of the invention, in step S2, cationic fixing agent of 0.3-1.0kg/t paper is added after the pulp preparation.
In the embodiment of the invention, in the step S2, a mesh cleaning agent is adopted at the mesh part before the pulp enters the mesh in the paper making process, and the dosage is 0.01-0.10kg/t paper.
In the embodiment of the invention, in the step S2, the paper stripping agent of 0.01-0.05kg/t paper is adopted in the press part in the paper making process.
In the embodiment of the invention, in step S3, a cylinder stripper of 0.01-0.05kg/t paper is used for drying.
In an embodiment of the invention, in step S3, the surface sizing is performed using a starch solution containing copper zinc pyrithione, the amount of copper zinc pyrithione added being 1 to 3kg/t of paper.
Further, in step S3, the stirring speed of the copper zinc pyrithione at the time of addition is not less than 60 rpm.
Compared with the prior art, the technical scheme adopted by the invention is that bleached sulfate chemical pulp and alkaline hydrogen peroxide bleached mechanical pulp are used as fiber raw materials for making paper, wherein the alkaline hydrogen peroxide bleached mechanical pulp contains more than 10 wt% of camphor wood raw materials, and as the chemical action of the chemical mechanical pulp is weak, antibacterial components such as camphor in camphor wood are basically reserved, and anionic components such as camphor oil form camphor cation fixings and are fixed on paper, the antibacterial effects of book books, books and the like can be effectively improved. Moreover, the antibacterial cultural paper also contains the components of copper, sulfur and zinc pyridine, so that the antibacterial cultural paper not only has good antibacterial and antivirus effects, but also is nontoxic to human bodies, and the application safety is improved. The invention mainly aims at the antibacterial cultural paper, can meet the basic requirements of printing and notebook paper, and has excellent antibacterial and antivirus effects. The product of the invention has large potential market, high profit and very good production and development values.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a manufacturing method of antibacterial cultural paper, which comprises the following steps:
s1, mixing the bleached sulfate chemical pulp and the alkaline hydrogen peroxide bleached mechanical pulp; the alkaline hydrogen peroxide bleaching mechanical pulp contains more than 10 wt% of camphorwood raw materials;
s2, adding a cation fixing agent after the pulp is prepared, and making paper to obtain wet paper;
and S3, drying the wet paper and performing surface sizing, wherein the surface sizing is performed by adopting a solution containing copper zinc sulfide pyridine to obtain the antibacterial cultural paper.
The paper made by the method has excellent antibacterial and antivirus effects, and can meet the basic requirements of printing and book use; the invention mainly provides antibacterial cultural paper products which are very rare at home and even internationally and have good market prospect.
In order to meet the requirements, the embodiment of the invention adopts the following technical scheme: first, the fiber raw material for paper making in this scheme comes from bleached kraft chemical pulp and alkaline hydrogen peroxide bleached mechanical pulp. Wood pulp is generally classified according to pulp making materials, pulp making methods, uses, and the like, such as chemical pulp such as kraft softwood pulp, mechanical wood pulp, chemical mechanical wood pulp (abbreviated as chemi-mechanical pulp), and the like. The bleached sulfate chemical pulp in the embodiment of the invention is as follows: bleached sulfate softwood chemical pulp (NBKP) and bleached sulfate hardwood chemical pulp (LBKP); the softwood pulp and the hardwood pulp are respectively pulp prepared by taking softwood (such as pine) and hardwood (including eucalyptus, poplar, birch and the like) as raw materials, mainly take chemical pulp types, and only adopt pulp commonly used in the field.
Wherein the alkaline hydrogen peroxide bleaching mechanical pulp is alkaline hydrogen peroxide bleaching disc mill mechanical pulp (APMP), and the pulping process comprises mild chemical treatment and disc mill mechanical refining. In the preferred embodiment of the invention, the APMP pulping raw material adopts 10-40% of camphorwood and 60-90% of poplar raw material. Specifically, the pulp of the embodiment of the present invention is bleached kraft softwood chemical pulp (NBKP), bleached kraft hardwood chemical pulp (LBKP), and alkaline hydrogen peroxide bleached millstone mechanical pulp (APMP); the weight ratio of the sizing agent can be: 10-20% of NBKP; 20-30% of LBKP; 50-70% of APMP.
In the papermaking raw material composition, 10-40% of camphorwood is adopted as an APMP pulping raw material, and 20-35% is more preferable; due to the weak chemical action of the chemical mechanical pulp APMP, the antibacterial components such as camphor in the camphorwood are basically reserved, which is beneficial to improving the antibacterial effect of book holders, books and the like.
In the embodiment of the invention, after the three kinds of slurry are mixed, the mixed slurry can be mixed to have the concentration of 3.0-3.2%. Embodiments of the present invention employ papermaking equipment conventional in the art, with a papermaking machine generally consisting of a wet end and a dry end, the wet end including a headbox (i.e., headbox), wire section, and press section; the dry section includes a drying section, a calender section, and a winder. After pulp preparation, the invention can be made into the finished product of the antibacterial cultural paper by thick pulp screening, seasoning, pulp flushing, desanding and degassing, sizing, fine screening, net part dehydration forming, squeezing, pre-drying, surface sizing, post-drying, press polishing, reeling and packaging in sequence.
If components such as camphor oil exist in a papermaking system, the problems of roller sticking and paper breaking in production are easily caused, and the production is difficult to normally develop; to solve this problem, in the embodiment of the present invention, a cationic fixing agent (for example, poly (dimethyldiallylammonium chloride)) is preferably added to the paper machine pulp mixing tank in an amount of 0.3 to 1.0kg/t of paper, and more preferably in an amount of 0.4 to 0.9kg/t of paper, and an anionic component such as camphor oil is bonded thereto and fixed to the paper.
In the embodiment of the present invention, the cationic fixative includes, but is not limited to, polydimethyldiallylammonium chloride, polyaluminum chloride, polyethylene oxide, cationic starch, preferably polydimethyldiallylammonium chloride.
In addition, in order to prevent the camphor oil from adhering to the papermaking net, the embodiment of the invention adds the net cleaning agent at the breast roll of the net part before the pulp enters the net part of the paper machine, and the using amount is 0.01-0.10kg/t paper. In the embodiment of the invention, the net cleaning agent can be oleamide benzene sulfonic acid.
In addition, in order to prevent the paper sheet of the press part of the paper machine from being adhered to the roller, the embodiment of the invention preferably adds 0.01 to 0.05kg/t of paper stripping agent into the press roller; the implementation mode is that the paper stripping agent oleic acid polyethylene glycol diester is mixed with water according to 200ppm and sprayed on the surface of a press roll. In the embodiment of the invention, the paper stripping agent can also be calcium stearate, vegetable oil, organosilicon, mineral oil and the like.
Wet paper basis weight obtained by papermaking in the embodiment of the invention is 70g/m2(ii) a Then enters a front drying part, and the surface temperature of a drying cylinder is optimizedAnd controlling the temperature to be 90-130 ℃, and drying the paper sheet. In order to prevent the problem that the first drying cylinder of the drying part is stuck, the invention preferably adds a drying cylinder stripping agent (preferably oleic acid polyethylene glycol diester) of 0.01-0.05kg/t paper into the first drying cylinder, and the using method adopts a spraying device to spray the drying cylinder stripping agent on the surface of the drying cylinder.
In order to obtain good antibacterial and antivirus effects, the embodiment of the invention preferably adds 1-3kg/t of paper copper zinc pyrithione to the starch solution for paper surface sizing, more preferably 1.5-2.8kg/t of paper. Zinc pyrithione is generally used in products such as cosmetics, and is used for paper, and zinc pyrithione is used as a chelate, has strong killing and reproduction inhibiting effects on bacteria, fungi and viruses, and is non-toxic to human body.
In the embodiment of the invention, the specific addition mode of the copper zinc pyrithione is as follows: preparing 5% turbid solution with water, and adding into a starch tank with stirring speed of 60 rpm or more. The surface sizing of the embodiment of the invention is carried out by adopting a starch solution containing copper zinc sulfide pyridine, wherein the starch is surface sizing starch, and the moisture content is less than or equal to 14 percent; surface sizing is carried out by coating a metering rod film, the water content of paper sheets subjected to surface sizing is 4.5-6.5%, the solid content (mass content) of the surface sizing zinc pyrithione and starch compound liquid is 10-15%, the viscosity is 5-20mpa.s (normal temperature), and the surface sizing amount is 2-5g/m2。
The embodiment of the invention enters the post-drying after passing through the sizing part, the drying temperature can be 40-130 ℃, and the dryness of the paper sheet of the drying part after being discharged is more than or equal to 93 percent; the sheet entering from the post-dryer section may enter a calendering station where the sheet is calendered. The invention has no special limitation on the processing such as pressing, drying, calendaring and the like, and can be realized by adopting the conventional process in the field. After calendaring, the embodiment of the invention winds the paper to obtain the antibacterial cultural paper.
The invention provides antibacterial cultural paper, which is prepared by taking bleached sulfate chemical pulp and alkaline hydrogen peroxide bleached mechanical pulp as fiber raw materials, wherein the alkaline hydrogen peroxide bleached mechanical pulp contains more than 10 wt% of camphorwood raw materials; the antibacterial cultural paper contains camphor cation fixings and pyridine sulfur copper zinc components.
The antibacterial cultural paper provided by the invention can be prepared by the manufacturing method, and the quantitative of the antibacterial cultural paper is 80.0 +/-1.0 g/m2The whiteness is ISO 81-83%, and the fracture length is ≧ 4500-7500 m.
In addition, the antibacterial effect test is carried out on the product produced by the process of the embodiment of the invention, and the antibacterial rate is up to more than 99 percent for escherichia coli and staphylococcus aureus. The paper not only has excellent antibacterial and antivirus effects, but also can meet the basic requirements of printing and notebook paper, and has better application safety and wide application prospect.
For further understanding of the present application, the following description is provided with reference to examples to illustrate an antibacterial cultural paper and a method for manufacturing the same, and the scope of the present invention is not limited by the following examples.
The raw materials used in the following examples of the invention are all commercial products, the cationic fixing agent is poly dimethyl diallyl ammonium chloride, the net cleaning agent is oleamide benzene sulfonic acid, and the paper stripping agent and the drying cylinder stripping agent are both oleic acid polyethylene glycol diester.
In the following examples, the surface sizing zinc pyrithione and starch compound liquid has a solid content of 10-15%, a viscosity of 5-20mpa.s (normal temperature), and a surface sizing amount of 2-5g/m2。
Example 1
Raw materials such as poplar and the like are prepared into ISO chemi-mechanical pulp with the whiteness of 72 percent by adopting an APMP pulping process, and the APMP pulping raw materials adopt 30 percent of camphorwood and 70 percent of poplar.
The pulp is bleached sulfate softwood chemical pulp (NBKP), bleached sulfate hardwood chemical pulp (LBKP), and the APMP; the weight ratio of the sizing agent is as follows: NBKP 15%; LBKP 25%; APMP 60%.
After the three kinds of pulp are mixed, the mixed pulp is blended into the density of 3.0 percent, and the antibacterial cultural paper is prepared by pulp washing, sand and gas removal, sizing, fine screening, net surfing forming and dehydration, squeezing, front drying, surface sizing, after drying, press polishing, reeling and packaging after thick pulp screening.
Wherein, 0.5kg/t of cationic fixing agent of paper is added into a pulp mixing pool of a paper machine. In the net part of the paper machine, a net cleaning agent is added at a breast roll of the net part before pulp is fed on the net, and the using amount of the net cleaning agent is 0.05kg/t paper. 0.03kg/t of paper release agent was added to the press roll by mixing the release agent with water at 200ppm and spraying it onto the roll surface of the press roll. The first drying cylinder is added with 0.03kg/t paper drying cylinder stripping agent, and the using method is to spray the drying cylinder stripping agent on the surface of the drying cylinder by adopting a spraying device. 2kg/t of pyridine, copper, sulfur and zinc sulfate of paper is added into the starch solution for sizing the surface of the paper. The addition mode of the copper zinc sulfide pyridine is as follows: a5% suspension is prepared with water and is introduced into a starch tank in which the stirring speed is equal to 60 revolutions per minute.
The prepared antibacterial culture paper has a fixed amount of 80.0 +/-1.0 g/m2The whiteness is ISO 81-83%, and the fracture length is ≧ 4500 m.
The antibacterial effect test (test standard: GB/T21866-.
The specific test results are as follows:
TABLE 1 antibacterial Effect of the product produced in example 1 of the present invention
Note: the comparison sample is common specification cultural paper, and the antibacterial rate '/' represents that the antibacterial property is unavailable; the "/" of the antibacterial culture paper represents that the paper cannot be detected.
Example 2
Raw materials such as poplar and the like are prepared into ISO chemi-mechanical pulp with the whiteness of 71 percent by adopting an APMP pulping process, and raw materials for APMP pulping adopt 35 percent of camphorwood and 65 percent of poplar.
The pulp is bleached sulfate softwood chemical pulp (NBKP), bleached sulfate hardwood chemical pulp (LBKP), and the APMP; the weight ratio of the sizing agent is as follows: NBKP 18%; LBKP 21%; APMP 61%.
After the three kinds of pulp are mixed, the mixed pulp is blended into the density of 3.1 percent, and the antibacterial cultural paper is prepared by pulp washing, sand removing and degassing, sizing, fine screening, net surfing forming and dewatering, squeezing, front drying, surface sizing, after drying, press polishing, reeling and packaging after thick pulp screening.
Wherein, 0.6kg/t of cationic fixing agent of paper is added into a pulp mixing pool of a paper machine. In the net part of the paper machine, a net cleaning agent is added at a breast roll of the net part before pulp is fed on the net, and the using amount of the net cleaning agent is 0.06kg/t paper. 0.02kg/t of paper release agent was added to the press roll by mixing the release agent with water at 200ppm and spraying it onto the press roll surface. The first drying cylinder is added with a drying cylinder stripping agent of 0.02kg/t paper, and the using method is to spray the drying cylinder stripping agent on the surface of the drying cylinder by adopting a spraying device. 2.5kg/t of copper zinc pyrithione is added to the starch solution for paper surface sizing. The addition mode of the copper zinc sulfide pyridine is as follows: a5% suspension is prepared with water and is introduced into a starch tank in which the stirring speed is equal to 60 revolutions per minute.
The prepared antibacterial culture paper has a fixed amount of 80.0 +/-1.0 g/m2The whiteness is ISO 81-83%, and the fracture length is ≧ 4500 m.
The antibacterial effect of the products produced by the process is tested, and the antibacterial rate of the products against escherichia coli and staphylococcus aureus reaches over 99 percent.
Example 3
Raw materials such as poplar and the like are prepared into ISO chemi-mechanical pulp with the whiteness of 71.5 percent by adopting an APMP pulping process, and the APMP pulping raw materials adopt 20 percent of camphorwood and 80 percent of poplar.
The pulp is bleached sulfate softwood chemical pulp (NBKP), bleached sulfate hardwood chemical pulp (LBKP), and the APMP; the weight ratio of the sizing agent is as follows: NBKP 13%; LBKP 24%; APMP 63%.
After the three kinds of pulp are mixed, the mixed pulp is blended into the density of 3.2 percent, and the antibacterial cultural paper is prepared by pulp washing, sand removing and degassing, sizing, fine screening, net surfing forming and dewatering, squeezing, front drying, surface sizing, after drying, press polishing, reeling and packaging after thick pulp screening.
Wherein, 0.7kg/t of cationic fixing agent of paper is added into a pulp mixing pool of a paper machine. In the net part of the paper machine, a net cleaning agent is added at a breast roll of the net part before pulp is fed on the net, and the using amount of the net cleaning agent is 0.04kg/t paper. 0.04kg/t of paper release agent was added to the press roll by mixing the release agent with water at 200ppm and spraying it onto the roll surface of the press roll. The first drying cylinder is added with a drying cylinder stripping agent of 0.04kg/t paper, and the using method is to spray the drying cylinder stripping agent on the surface of the drying cylinder by adopting a spraying device. 2.2kg/t of copper zinc pyrithione is added to the starch solution for paper surface sizing. The addition mode of the copper zinc sulfide pyridine is as follows: a5% suspension is prepared with water and is introduced into a starch tank in which the stirring speed is equal to 60 revolutions per minute.
The prepared antibacterial culture paper has a fixed amount of 80.0 +/-1.0 g/m2The whiteness is ISO 81-83%, and the fracture length is ≧ 4500 m.
The antibacterial effect of the products produced by the process is tested, and the antibacterial rate of the products against escherichia coli and staphylococcus aureus reaches over 99 percent.
As can be seen from the above examples, the present invention uses bleached kraft chemical pulp and alkaline hydrogen peroxide bleached mechanical pulp as fiber raw materials to prepare paper, wherein the alkaline hydrogen peroxide bleached mechanical pulp contains not less than 10 wt% of camphorwood raw materials. Moreover, the antibacterial cultural paper also contains the components of copper, sulfur and zinc pyridine, so that the antibacterial cultural paper not only has good antibacterial and antivirus effects, but also is nontoxic to human bodies, and the application safety is improved. The invention mainly aims at the antibacterial cultural paper, can meet the basic requirements of printing and notebook paper, and has excellent antibacterial and antivirus effects.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The antibacterial cultural paper is characterized by being prepared by taking bleached sulfate chemical pulp and alkaline hydrogen peroxide bleached mechanical pulp as fiber raw materials, wherein the alkaline hydrogen peroxide bleached mechanical pulp contains more than 10 wt% of camphorwood raw materials; the antibacterial cultural paper contains camphor cation fixings and pyridine sulfur copper zinc components.
2. The manufacturing method of the antibacterial cultural paper is characterized by comprising the following steps:
s1, mixing the bleached sulfate chemical pulp and the alkaline hydrogen peroxide bleached mechanical pulp; the alkaline hydrogen peroxide bleaching mechanical pulp contains more than 10 wt% of camphorwood raw materials;
s2, adding a cation fixing agent after the pulp is prepared, and making paper to obtain wet paper;
and S3, drying the wet paper and performing surface sizing, wherein the surface sizing is performed by adopting a solution containing copper zinc sulfide pyridine to obtain the antibacterial cultural paper.
3. The method of manufacturing according to claim 2, wherein the bleached sulfate chemical pulp is bleached sulfate softwood chemical pulp and bleached sulfate hardwood chemical pulp;
the alkaline hydrogen peroxide bleaching mechanical pulp adopts 10-40% of camphorwood raw material and 60-90% of poplar raw material.
4. The method according to claim 3, wherein the weight ratio of the bleached sulfate softwood chemical pulp to the bleached sulfate hardwood chemical pulp to the alkaline hydrogen peroxide bleached mechanical pulp is 10-20%: 20-30%: 50-70%.
5. The method of claim 3, wherein in step S2, 0.3-1.0kg/t of cationic fixative is added after the pulp is prepared.
6. The manufacturing method according to any one of claims 2 to 5, wherein in step S2, a mesh cleaning agent is used in the mesh part before the pulp enters the mesh in the paper making process, and the dosage is 0.01 to 0.10kg/t paper.
7. The method according to claim 6, wherein in step S2, a paper release agent of 0.01-0.05kg/t paper is used in the press section in the papermaking process.
8. A method according to claim 6, wherein in step S3, a dryer release agent of 0.01-0.05kg/t paper is used for drying.
9. The method of any one of claims 2 to 5, wherein in step S3, the surface sizing is performed using a starch solution containing copper zinc pyrithione, the amount of copper zinc pyrithione added being 1 to 3kg/t of paper.
10. The process according to claim 9, wherein in step S3, the stirring speed for adding the copper zinc pyrithione is not less than 60 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110418713.XA CN113062146A (en) | 2021-04-19 | 2021-04-19 | Antibacterial cultural paper and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418713.XA CN113062146A (en) | 2021-04-19 | 2021-04-19 | Antibacterial cultural paper and manufacturing method thereof |
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| CN113638261A (en) * | 2021-07-19 | 2021-11-12 | 江门市高力依科技实业有限公司 | Mildew-proof paper and preparation method and application thereof |
| CN113756134A (en) * | 2021-09-22 | 2021-12-07 | 岳阳林纸股份有限公司 | Printing paper and preparation method thereof |
| CN114481662A (en) * | 2021-12-22 | 2022-05-13 | 岳阳林纸股份有限公司 | Camphorwood oil extraction pulping method |
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