CN113005807B - Production process of environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product - Google Patents
Production process of environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product Download PDFInfo
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- CN113005807B CN113005807B CN202110300544.XA CN202110300544A CN113005807B CN 113005807 B CN113005807 B CN 113005807B CN 202110300544 A CN202110300544 A CN 202110300544A CN 113005807 B CN113005807 B CN 113005807B
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- 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
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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
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
Abstract
The invention provides a production process of an environment-friendly dry household paper product with high-efficiency sterilization and bacteriostasis. The invention realizes the product efficacy of high-efficiency sterilization and bacteriostasis of the dry paper towel by controlling the processes of each working section of the production of the base paper, by adopting the bactericide to sterilize the raw material pulp board, spraying the bactericide on the roll paper and adopting the composite bactericide which takes the quaternary ammonium salt, the cinnamaldehyde and the chitosan as the main components through the production processes of the base paper, the rewinding coating production process, and the packaging and the storage of the product.
Description
Technical Field
The invention relates to the field of household paper, in particular to a production process of an environment-friendly dry household paper product with high-efficiency sterilization and bacteriostasis.
Background
With the improvement of living standard, people have higher and higher requirements on the household paper, and on one hand, the household paper has the functions of sterilization and bacteriostasis.
The production of the product belongs to the extension of spunlace non-woven fabric series products of non-woven fabrics, chemical fibers and plant fibers are mixed as raw materials, the spunlace non-woven fabrics are usually used as base materials for impregnation, and the sterilization components of the product generally contain alcohol, so that the use and storage requirements are higher, especially the sealing requirements on the outer packaging bag of the product are higher, and the product is heavy and is not easy to carry; and the production environment and process requirements are high, and the product is difficult to degrade and is not beneficial to garbage classification and environmental protection treatment.
The antibacterial product with paper as a base material is a finished product which is mainly produced by taking pure wood pulp base paper as the base material, carrying out pulp internal and rewinding coating on high-efficiency antibacterial components and then carrying out post-processing, has the antibacterial effect mostly only aiming at the antibacterial and quality guarantee requirements of the product, cannot really realize the antibacterial effect of the product, has very strict technological requirements and whole flow management and control requirements on each working section in the production process, has low equipment operation rate of production sections, has low production efficiency, has large loss of raw and auxiliary materials and the like.
Therefore, the existing production process and flow management and control are difficult to realize the stable production of the high-quality dry tissue sterilization product. The product quality is improved by carrying out process improvement aiming at each production section; optimizing the management and control of the whole production flow reduces various waste rates, improves the production efficiency and improves the stability of the product quality.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a production process of an environment-friendly dry high-efficiency bactericidal and bacteriostatic household paper product.
A production process of an environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product comprises the following steps:
1. the production process of the base paper comprises the following steps:
1.1 preparing slurry by using raw materials: the method comprises the following steps of (1) taking an imported raw pulp board as a raw material, pulping long and short pulp boards by a pulper, pulping long fibers, defibering short fibers by a high-frequency defibering machine, mixing the treated long and short fibers, adding a non-oxidizing bactericide or a weakly oxidizing bactericide for sterilization, and pulping by a leveling mill for paper making;
1.2, paper making by a paper machine: the prepared pulp is sent to a paper machine net part for forming through a flow sending section, and then is subjected to high-speed centrifugal dehydration and ultrahigh-temperature drying, and is subjected to wrinkling control and reeling to form paper;
2. rewinding coating production process: coating the bactericide on the roll paper by adopting a rotating disc type or roller coating type coating device and aerosol treatment, ensuring that the surface of a paper sheet is uniformly sprayed without dead angles, and ensuring normal, continuous and stable production by interlocking the start and stop of the device and the program of a rewinding machine; the diameter of the bobbin can be controlled between 700 and 1200mm according to the production requirement of the back-end equipment;
3. packaging and storing of products: the Teflon adhesive tape is used at the push plate of the single-packaging machine, the high-quality composite film is used for selecting the type of the packaging material, and the finished product is independently stored in a ventilated place of a warehouse.
Preferably, in the step 1.1, the long fibers are beaten to a beating degree of 20-27 DEG SR, and the proportion of the long fibers is 10-40%; preferably, the proportion of the long fibers is 30-40%; mixing with short fibers, and pulping until the pulping degree is 23-32 DEG SR;
preferably, the non-oxidation bactericide in step 1.1 is one or more of dichlorophen, dodecyl benzyl ammonium chloride and dodecyl dimethyl benzyl ammonium bromide;
preferably, the J/W ratio in the paper machine net part forming in the step 1.2 is controlled to be 0.82-0.89, and the ratio of the tensile tension of the formed paper in the longitudinal direction and the transverse direction is 2.6-3.2;
preferably, the bactericide in the step 2 is a composite bactericide taking quaternary ammonium salt, cinnamaldehyde and chitosan as main components; the weight ratio of the quaternary ammonium salt, the cinnamaldehyde and the chitosan in the composite bactericide is 1-2: 1-2: 5-10, preferably 1: 1: 5; the quaternary ammonium salt is one or more of dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride and dodecyl dimethyl benzyl ammonium bromide. The bactericide is diluted by water and used, the spraying amount of the bactericide solution accounts for 4-10% of the weight of the paper, the concentration of the bactericide is 10-20 wt%, and the effective amount of the bactericide accounts for 0.05-0.2% of the weight of the paper.
The invention has the following beneficial effects:
through the process control of each section of the raw paper production, the product efficacy of high-efficiency sterilization and bacteriostasis of the dry paper towel is realized. Compared with the conventional sterilizing wet tissue, the dry paper tissue high-efficiency sterilizing product has the following advantages: 1. the innovative production mode realizes high-efficiency sterilization of the dry paper towel and can realize the replacement of sterilization products of the non-woven fabric base material; 2. the adopted bactericide is very stable, is stored in a daily use environment, does not need to be sealed and stored intentionally, has the same use mode as the conventional dry paper towel living paper product at present, but has the bactericidal effect; 3. by selecting a specific bactericide and adjusting the proportion, the safety and the stability of the bactericide to a human body are ensured while the bactericidal property is improved; 4. the effective amount of the bactericide is controlled to be 0.05-0.2 percent of the weight of the roll paper, if the amount of the bactericide is too small, the bactericidal effect cannot be met, and if the amount of the bactericide is too large, the bactericide is possibly unstable on paper products and even can generate adverse reaction on skin; 5. in the preparation process, the beating degree is adjusted, the ratio of the longitudinal tensile strength to the transverse tensile strength of the formed paper is 2.6-3.2, the paper is not easy to break, the strength and the flexibility are good, and the paper can be used after being soaked in water, so that the dry and wet dual-purpose of the product is realized; 6. the raw plant fiber is used for 100 percent, and no chemical fiber is added, so that the sterilization and degradation are efficient, and the environment is protected.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
A production process of an environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product comprises the following steps:
1. the production process of the base paper comprises the following steps:
1.1 preparing slurry by using raw materials: the method is characterized in that an imported primary pulp board is used as a raw material, long and short pulp boards are firstly pulped by a pulper, then long fibers are pulped by a disc mill until the pulping degree is 25 degrees SR, short fibers are defibered by a high-frequency defibering machine, and the short fibers are defibered by the high-frequency defibering machine and then are mixed with the long fibers according to the ratio of 60: 40, adding dichlorophenol for sterilization, and then carrying out paper making by a paper preparation machine through uniform grinding and pulping;
1.2, paper making by a paper machine: the prepared pulp is sent to a paper machine net part for forming through a flow passing section, wherein the J/W ratio is controlled to be 0.85, the longitudinal and transverse tensile tension ratio of the formed paper is 3.0, and the paper is formed through high-speed centrifugal dehydration, ultrahigh-temperature drying and wrinkling control reeling;
2. rewinding coating production process: coating the bactericide on the roll paper by adopting a rotating disc type spraying device, ensuring that the surface of paper is uniformly sprayed without dead angles, and ensuring normal, continuous and stable production by interlocking the start and stop of the device and the program of the rewinding machine; the diameter of the bobbin is 800 mm; wherein the bactericide is dodecyl trimethyl ammonium chloride, cinnamaldehyde and chitosan, and the mass ratio of the bactericide is 1: 1: 5, adding water into the bactericide for dilution, wherein the spraying amount of the bactericide solution accounts for 10% of the weight of the paper, the concentration of the bactericide is 15 wt.%, and the effective amount of the bactericide accounts for 0.16% of the weight of the paper;
3. packaging and storing of products: the Teflon adhesive tape is used at the push plate of the single-packaging machine, the high-quality composite film is used for selecting the type of the packaging material, and the finished product is independently stored in a ventilated place of a warehouse.
The prepared paper products are tested by the sterilization performance test method of GB15979-2002 (hygienic Standard for Disposable sanitary articles) appendix C3, and the results are shown in the following table:
the original packaging sample is placed in a thermostat at 55 ℃ for 14 days, the relative humidity is kept at 80%, and then the sterilization performance test is carried out, so that the sterilization rate of escherichia coli, staphylococcus aureus and candida albicans in 5min can still reach 93.4%, 92.1% and 92.7%, and the national standard is met.
Example 2
In the step 2, the bactericide is dodecyl dimethyl benzyl ammonium chloride, cinnamaldehyde and chitosan, and the mass ratio of the bactericide to the bactericide is 1: 2: 8, the rest is the same as example 1.
The prepared paper product is tested by using the sterilization performance test method of GB15979-2002 appendix C3, and the results are shown in the following table:
the original packaging sample is placed in a thermostat at 55 ℃ for 14 days, the relative humidity is kept at 80%, and then the sterilization performance test is carried out, so that the sterilization rate of escherichia coli, staphylococcus aureus and candida albicans in 5min can still reach 92.8%, 93.1% and 91.7%, and the national standard is met.
Comparative example 1:
adjusting the mass ratio of the dodecyl trimethyl ammonium chloride, the cinnamaldehyde and the chitosan in the bactericide in the step 2 to be 1: 1: 2; the rest is the same as in example 1.
The prepared paper product is tested by using the sterilization performance test method of GB15979-2002 appendix C3, the test conditions are the same as those in example 1, and the sterilization rates of the paper product on escherichia coli, staphylococcus aureus and candida albicans in 5min are 93.4%, 92.5% and 96.3% respectively.
The original packaged sample is placed in a thermostat at 55 ℃ for 14 days, the relative humidity is kept at 80%, and then the sterilization performance test is carried out, wherein the sterilization rates of escherichia coli, staphylococcus aureus and candida albicans in 5min are respectively 81.4%, 79.3% and 72.9%, and are lower than 90%, and the sterilization rates do not meet the requirements of the national standard on sterilized paper towels.
Comparative example 2
Adjusting the mass ratio of the dodecyl trimethyl ammonium chloride, the cinnamaldehyde and the chitosan in the bactericide in the step 2 to be 1: 0: 5; the rest is the same as in example 1.
The prepared paper product is tested by adopting the sterilization performance test method of GB15979-2002 appendix C3, the test conditions are the same as the example 1, and the sterilization rates of the paper product on escherichia coli, staphylococcus aureus and candida albicans in 5min are 90.5%, 91.4% and 90.9% respectively.
The original packaged sample is placed in a thermostat at 55 ℃ for 14 days, the relative humidity is kept at 80%, and then the sterilization performance test is carried out, wherein the sterilization rates of escherichia coli, staphylococcus aureus and candida albicans in 5min are respectively 72.4%, 74.6% and 73.1%, and are lower than 90%, and the sterilization rates do not meet the requirements of the national standard on sterilized paper towels.
Comparative example 3
Adjusting the mass ratio of the dodecyl trimethyl ammonium chloride, the cinnamaldehyde and the chitosan in the bactericide in the step 2 to be 0: 1: 5; the rest is the same as in example 1.
The prepared paper product is tested by adopting the sterilization performance test method of GB15979-2002 appendix C3, the test conditions are the same as the example 1, and the sterilization rates of the paper product on escherichia coli, staphylococcus aureus and candida albicans within 5min are respectively 89.6%, 90.6% and 90.2%.
The original packaged sample is placed in a thermostat at 55 ℃ for 14 days, the relative humidity is kept at 80%, and then the sterilization performance test is carried out, wherein the sterilization rates of escherichia coli, staphylococcus aureus and candida albicans in 5min are respectively 71.8%, 72.3% and 72.9%, and are lower than 90%, and the sterilization rates do not meet the requirements of the national standard on sterilized paper towels.
Comparative example 4
Adjusting the mass ratio of the dodecyl trimethyl ammonium chloride, the cinnamaldehyde and the chitosan in the bactericide in the step 2 to be 1: 1: 15; the rest is the same as in example 1.
The prepared paper product is tested by adopting the sterilization performance test method of GB15979-2002 appendix C3, the test conditions are the same as the example 1, and the sterilization rates of the paper product on escherichia coli, staphylococcus aureus and candida albicans in 5min are 91.2%, 92.0% and 92.6% respectively.
The original packaged sample is placed in a thermostat at 55 ℃ for 14 days, the relative humidity is kept at 80%, and then the sterilization performance test is carried out, wherein the sterilization rates of escherichia coli, staphylococcus aureus and candida albicans in 5min are respectively 78.6%, 77.8% and 79.1%, and are lower than 90%, and the sterilization rates do not meet the requirements of the national standard on sterilized paper towels.
According to the test results, the paper product prepared by selecting the bactericide combination with specific proportion and substances has good sterilization effect, and the sterilization rate of escherichia coli, staphylococcus aureus and candida albicans can still reach more than 90% after the accelerated test and the sterilization test, so that the paper product meets the national standard.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A production process of an environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product comprises the following steps:
1. the production process of the base paper comprises the following steps:
1.1 preparing slurry by using raw materials: the method comprises the following steps of (1) taking an imported raw pulp board as a raw material, pulping long and short pulp boards by a pulper, pulping long fibers, defibering short fibers by a high-frequency defibering machine, mixing the treated long and short fibers, adding a non-oxidizing bactericide or a weakly oxidizing bactericide for sterilization, and pulping by a leveling mill for paper making;
1.2, paper making by a paper machine: the prepared pulp is sent to a paper machine net part for forming through a flow sending section, and then is subjected to high-speed centrifugal dehydration and ultrahigh-temperature drying, and is subjected to wrinkling control and reeling to form paper;
2. rewinding coating production process: coating the bactericide on the roll paper by adopting a rotating disc type or roller coating type coating device and aerosol treatment, ensuring that the surface of a paper sheet is uniformly sprayed without dead angles, and ensuring normal, continuous and stable production by interlocking the start and stop of the device and the program of a rewinding machine; the diameter of the bobbin can be controlled between 700 and 1200mm according to the production requirement of the back-end equipment;
3. packaging and storing of products: a Teflon adhesive tape is used at the push plate of the single-packaging machine, a high-quality composite film is used for selecting the type of the packaging material, and the finished product is independently stored in a ventilated place of a warehouse;
the bactericide in the step 2 is a composite bactericide taking quaternary ammonium salt, cinnamaldehyde and chitosan as main components, and the weight ratio of the quaternary ammonium salt, the cinnamaldehyde and the chitosan in the composite bactericide is 1-2: 1-2: 5-10;
in the step 2, the bactericide is diluted by water and used, the spraying amount of the bactericide solution accounts for 4-10% of the weight of the paper, the concentration of the bactericide is 10-20 wt%, and the effective amount of the bactericide accounts for 0.05-0.2% of the weight of the paper.
2. The production process of the environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product according to claim 1, wherein in step 1.1, the long fibers are pulped to a pulping degree of 20-27 degrees SR, and the proportion of the long fibers is 10-40%.
3. The production process of the environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product according to claim 2, wherein the proportion of the long fibers in the step 1.1 is 30-40%.
4. The production process of the environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product according to claim 1, wherein the mixture is mixed in step 1.1 and then pulped until the pulping degree is 23-32 degrees SR.
5. The production process of the environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product according to claim 1, wherein the non-oxidative bactericide in step 1.1 is one or more of dichlorophenol, dodecyl benzyl ammonium chloride and dodecyl dimethyl benzyl ammonium bromide.
6. The process for producing an environment-friendly dry high-efficiency bactericidal and bacteriostatic household paper product as claimed in claim 1, wherein in step 1.2, the J/W ratio in the web part forming of the paper machine is controlled to be 0.82-0.89, and the ratio of the longitudinal and transverse tensile tension of the formed paper is 2.6-3.2.
7. The production process of the environment-friendly dry high-efficiency bactericidal and bacteriostatic domestic paper product according to claim 1, wherein the weight ratio of the quaternary ammonium salt, the cinnamaldehyde and the chitosan in the composite bactericide is 1: 1: 5.
8. the process for producing an environment-friendly dry high-efficiency bactericidal and bacteriostatic household paper product as claimed in claim 1, wherein the quaternary ammonium salt is one or more of dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride and dodecyl dimethyl benzyl ammonium bromide.
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| CN106750580A (en) * | 2017-01-09 | 2017-05-31 | 福州大学 | A kind of new edibility antibacterial food packaging film and preparation method thereof |
| CN107059477A (en) * | 2017-06-12 | 2017-08-18 | 江苏神涛环保科技有限公司 | A kind of preparation method of the anti-bacteria paper containing quaternary ammonium salt antiseptic |
| CN107216674A (en) * | 2017-07-11 | 2017-09-29 | 滁州海川印刷包装有限公司 | A kind of preparation method of vegetables base safety and environmental protection food wrapping paper |
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| CN108442178A (en) * | 2018-05-07 | 2018-08-24 | 句容市兴武包装有限公司 | A kind of high-efficiency antimicrobial paper for daily use and preparation method thereof |
| CN109024080B (en) * | 2018-07-24 | 2021-09-07 | 山东太阳生活用纸有限公司 | Environment-friendly antibacterial hand towel and preparation method thereof |
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| CN110792004A (en) * | 2019-11-18 | 2020-02-14 | 界首市天路包装材料有限公司 | Antibacterial and oil-proof modification method of degradable food packaging paper |
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Address after: 314214 Caoqiao street, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: ZHEJIANG JINGXING PAPER JOINT STOCK Co.,Ltd. Address before: 650201 new village, group 1, Youying community, Hongyun sub district office, Longquan Road, Wuhua District, Kunming City, Yunnan Province Patentee before: ZHEJIANG JINGXING PAPER JOINT STOCK Co.,Ltd. |
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Correction item: Address Correct: 314214 Caoqiao sub district, Pinghu City, Jiaxing City, Zhejiang Province False: 650201 new village Group 1 Youying community Hongyun sub district office Longquan Road Wuhua District Kunming City Yunnan Province Number: 10-01 Page: The title page Volume: 38 Correct: 314214 Caoqiao sub district, Pinghu City, Jiaxing City, Zhejiang Province False: 650201 new village Group 1 Youying community Hongyun sub district office Longquan Road Wuhua District Kunming City Yunnan Province |
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Denomination of invention: The production process of an environmentally friendly dry, efficient sterilization and antibacterial paper product for daily use Effective date of registration: 20230704 Granted publication date: 20220308 Pledgee: Bank of China Limited Pinghu Branch Pledgor: ZHEJIANG JINGXING PAPER JOINT STOCK Co.,Ltd. Registration number: Y2023980047274 |