CN114032702A - Preparation method of high-barrier soft disposable packing paper - Google Patents
Preparation method of high-barrier soft disposable packing paper Download PDFInfo
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- CN114032702A CN114032702A CN202111346907.XA CN202111346907A CN114032702A CN 114032702 A CN114032702 A CN 114032702A CN 202111346907 A CN202111346907 A CN 202111346907A CN 114032702 A CN114032702 A CN 114032702A
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- Prior art keywords
- paper
- disposable
- wrinkling
- dipping
- base paper
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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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—Polyesters
-
- 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
-
- 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
-
- 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
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention relates to a preparation method of high-barrier soft disposable packing paper, which comprises the following steps: the production, dipping processing and wrinkling of the base paper for the packing sheet are characterized in that the base paper for the packing sheet is processed in dipping liquid consisting of latex, a waterproof agent, nano-cellulose and an antibacterial agent, and the dipping gluing amount is 2-10 g/m2And (3) wrinkling at the drying temperature of 90-120 ℃ to obtain the disposable single pad paper with high barrier property, good softness and high strength. The process operation of the invention is easy to realize scale, and the prepared packing paper has good water resistance and barrier property and excellent softnessAnd comfort.
Description
Technical Field
The invention belongs to the technical field of special paper, and particularly relates to a preparation method of high-barrier flexible disposable single packing paper.
Background
The disposable sheet (bed) is an article which is widely applied to disease detection and sickbed nursing in hospitals at present, can effectively isolate and prevent cross infection, and can be used in scenes such as hairdressing and beauty, health care centers, daily protection of families and the like. The disposable pad should have the following characteristics: (1) the disposable bed sheet can prevent blood and other body fluids from permeating, can prevent bed articles from being polluted when being used as the disposable bed sheet, and avoids the waste of time and labor due to frequent replacement; (2) should have good tensile strength and burst strength; (4) should have sufficient soft skin-friendly properties. The existing disposable cushion sheet is made of a common non-woven fabric material, mainly has a single-layer non-woven fabric or a structure of non-woven fabric and PE film, although the product has the functions of blocking and seepage prevention, the air permeability is poor, the comfort level is not enough, and the main raw materials of the product are petroleum-based chemical materials such as polypropylene, polyethylene and the like, so that the product is non-renewable and has large load on the environment. The plant fiber is used as renewable bio-based resource, the raw material is wide and easy to obtain, the load on the environment is small compared with polypropylene fossil-based raw material, and the disposable paper mat prepared by the plant fiber is already applied in the countries of America, Japan and the like. A product of single-layer disposable packing single paper prepared from plant fibers is not available in China, and a product in a department adopts a composite structure of non-woven fabric, plant fiber paper and a PE film, so that the processing is complex. At present, medical crepe paper prepared from plant fibers is available in the market, and if the medical crepe paper is directly used as a detection and nursing cushion sheet, the medical crepe paper has the problems of poor softness, air permeability and poor comfort.
The invention has not solved the above-mentioned technical and performance problem, the invention takes vegetable fibre as the main raw materials and prepares the disposable single paper of the close skin, flexible, ventilative, obstructing biobased by the paper-making forming method, while promoting the single paper comprehensive properties of cushion, can relieve the environmental pressure, in addition, under the current epidemic situation, the global demand for main raw materials of medical epidemic prevention supplies such as polypropylene, etc. is increased sharply, apt to cause the starvation of supplies such as gauze mask, medical cushion, etc., the preparation of disposable single paper of vegetable fibre can offer the maiden solution for the medical supplies raw materials shortage that the medical emergency causes, offer the maiden technological approach for promoting the industrial development of new materials for emergency protection fields such as public health development, civil air defense engineering, etc..
Disclosure of Invention
The invention provides a preparation method of high-barrier soft disposable packing single paper by taking plant fiber as a main raw material, which adopts the technical scheme that:
a preparation method of high-barrier soft disposable packing paper comprises the following steps: the production, dipping processing and wrinkling of the base paper of the packing sheet are characterized in that the base paper of the packing sheet is prepared from latex, a waterproof agent and nano fibersProcessing in an impregnation liquid consisting of a vegetable oil and an antibacterial agent, wherein the impregnation sizing amount is 2-10 g/m2And (3) wrinkling at the drying temperature of 90-120 ℃ to obtain the disposable single pad paper with high barrier property, good softness and high strength.
The production of the base paper for the packing sheet takes softwood pulp as a main raw material, other fibers are proportioned, the weight proportion of the softwood pulp is 70-90%, the weight proportion of the other fibers is 10-30%, the other fibers are one or more of terylene, tencel and viscose, the beating degree of the softwood pulp is 16-22 DEG SR, the length of the other fibers is 3-10 mm, a PAE wet strength agent is added into the pulp, the using amount of the wet strength agent is 0.2-1.0%, the mixed pulp is diluted, screened, formed, squeezed and dried to prepare the base paper for the packing sheet, and the base paper is quantified to 40-60 g/m2。
The dipping solution for dipping processing consists of latex, a waterproof agent, nano-cellulose and an antibacterial agent, wherein the latex is a mixed solution of acrylic emulsion and vinyl acetate-ethylene copolymer emulsion, the mixing ratio of the latex to the vinyl acetate-ethylene copolymer emulsion is 3: 7-7: 3, the mass concentration of the mixed emulsion is 5-20%, the glass transition temperature of the acrylic emulsion is-5-2 ℃, the waterproof agent is AKD, the mass concentration is 0.05-0.2%, the mass concentration of the nano-cellulose is 0.05-0.5%, the antibacterial agent is chitosan, the mass concentration is 0.1-1.0%, the base sheet paper passes through a dipping tank filled with the dipping solution, and then the base sheet is rolled and dried, and the gluing amount of the dipping solution is 2-10 g/m2。
The wrinkling treatment adopts a semi-dry scraper for wrinkling, the water content of the paper is 10-25 percent during the wrinkling operation, and the disposable single pad paper is obtained after wrinkling through hot air or drying cylinder.
The invention has the beneficial effects that:
according to the invention, the terylene, tencel or viscose fibers are proportioned in the fiber raw materials, so that the softness of paper is improved, and the base paper is treated by adopting the acrylic emulsion and the vinyl acetate-ethylene copolymer emulsion with lower glass transition temperature, so that the strength performance of the paper is improved and the softness of the paper can be improved. Adding nanocellulose in the impregnating solution can improve rheological property and homogeneity of the impregnating solution, guarantee the stability of impregnation treatment, nanocellulose and emulsion synergy, not only be favorable to improving the intensity of paper, but also be favorable to filling up the improvement of single paper water barrier resistance, and can guarantee that the paper intensity can not obviously reduce after wrinkling for the paper still has higher intensity, and in addition, the addition of chitosan in the impregnating solution can play antibacterial action.
The disposable single-pad paper prepared by the invention can meet the following indexes: the longitudinal tensile strength is more than or equal to 25N, the longitudinal elongation is more than or equal to 10 percent, the softness is less than or equal to 650mN, and the Cobb value is less than or equal to 20g/m2Air permeability of more than or equal to 50L/m2.s。
Detailed Description
The present invention will be described in further detail with reference to examples, but the following examples are not intended to limit the present invention. All percentages used in the present invention are mass percentages unless otherwise indicated.
Example 1
The fiber raw material is 80% of softwood pulp, the beating degree is 18 DEG SR, 20% of 5mm polyester fiber is added, 0.5% of PAE wet strength agent is added into the pulp, and the mixed pulp is dehydrated, formed, squeezed and dried to obtain the quantitative 55g/m2The base stock of the mat sheet. The base paper is dipped, the mixing ratio of acrylic emulsion and vinyl acetate-ethylene copolymer emulsion in the dipping solution is 1:1, the concentration of the mixed emulsion is 9 percent, the AKD concentration is 0.1 percent, the concentration of nano-cellulose is 0.2 percent, the concentration of chitosan is 0.2 percent, the single base paper is rolled and dried by passing through a dipping tank filled with the dipping solution, and the gluing amount of the dipping solution is 5g/m2And after drying, the water content of the paper is 16%, and wrinkling treatment is carried out to obtain the disposable single pad paper.
The properties of the disposable release paper from example 1 were as follows: quantitative determination of 60.1g/m2Longitudinal tensile strength of 28.7N, longitudinal elongation of 13.9%, softness of 612mN, Cobb value of 19.2g/m2Air permeability of 67.6L/m2.s。
Example 2
The fiber raw material is 70% of softwood pulp, the beating degree is 20 DEG SR, 30% of 6mm tencel fiber, 0.5% of PAE wet strength agent is added into the pulp, and the mixed pulp is dehydrated, formed, squeezed and dried to obtain the quantitative 50g/m2The base stock of the mat sheet. Impregnating base paper, and mixing acrylic emulsion and vinyl acetate-ethylene in impregnating solutionThe mixing ratio of the poly emulsion is 1:1, the concentration of the mixed emulsion is 15%, the concentration of AKD is 0.1%, the concentration of nano cellulose is 0.3%, the concentration of chitosan is 0.2%, the raw base paper of the mat sheet passes through an impregnation tank filled with impregnation liquid, the mixture is rolled and dried, and the gluing amount of the impregnation liquid is 8g/m2And after drying, the water content of the paper is 15%, and wrinkling treatment is carried out to obtain the disposable single pad paper.
The properties of the disposable release paper from example 2 were as follows: quantitative determination of 58.6g/m2Longitudinal tensile strength of 32.8N, longitudinal elongation of 11.8%, softness of 588mN, Cobb value of 18.1g/m2Air permeability of 58.3L/m2.s。
Example 3
The fiber raw material is 85% of softwood pulp, the beating degree is 16 degrees SR, 15% of 8mm polyester fiber is added, 0.5% of PAE wet strength agent is added into the pulp, and the mixed pulp is dehydrated, formed, squeezed and dried to obtain the quantitative 45g/m2The base stock of the mat sheet. The base paper is dipped, the mixing ratio of acrylic emulsion and vinyl acetate-ethylene copolymer emulsion in the dipping solution is 6:4, the concentration of the mixed emulsion is 10 percent, the concentration of AKD is 0.2 percent, the concentration of nano-cellulose is 0.1 percent, the concentration of chitosan is 0.2 percent, the single base paper passes through a dipping tank filled with the dipping solution, the base paper is rolled and dried, and the gluing amount of the dipping solution is 5g/m2And after drying, the water content of the paper is 18%, and wrinkling treatment is carried out to obtain the disposable single-pad paper.
The properties of the disposable release paper from example 3 were as follows: quantitative determination of 50.1g/m2Longitudinal tensile strength of 26.2N, longitudinal elongation of 10.8%, softness of 463mN, Cobb value of 17.1g/m2Air permeability of 83.5L/m2.s。
Example 4
The fiber raw material is 80% of softwood pulp, the beating degree is 19 DEG SR, 20% of 5mm viscose fiber is added, 0.5% of PAE wet strength agent is added into the pulp, and the mixed pulp is dehydrated, formed, squeezed and dried to obtain the quantitative 40g/m2The base stock of the mat sheet. The base paper is dipped, the mixing ratio of acrylic emulsion and vinyl acetate-ethylene copolymer emulsion in the dipping solution is 6:4, the concentration of the mixed emulsion is 12 percent, the concentration of AKD is 0.1 percent, the concentration of nano-cellulose is 0.2 percent, the concentration of chitosan is 0.3 percent, the single base paper passes through a dipping tank filled with the dipping solution and is rolled and dried, and the gluing amount of the dipping solution is 6g/m2And after drying, the water content of the paper is 15%, and wrinkling treatment is carried out to obtain the disposable single pad paper.
The properties of the disposable release paper from example 4 were as follows: quantitative 46.4g/m2Longitudinal tensile strength of 25.8N, longitudinal elongation of 10.9 percent, softness of 496mN and Cobb value of 18.5g/m2Air permeability of 87.7L/m2.s。
Conventional 45g/m of determination2The softness of the medical non-woven fabric mat sheet is 602mN, the softness of the disposable mat sheet prepared by using the plant fiber as the main raw material can reach the level of the conventional non-woven fabric mat sheet, and the waterproof barrier property and the strength property completely meet the application scene.
Claims (4)
1. A preparation method of high-barrier soft disposable packing paper comprises the following steps: the production, dipping processing and wrinkling of the base paper for the packing sheet are characterized in that the base paper for the packing sheet is processed in dipping liquid consisting of latex, a waterproof agent, nano-cellulose and an antibacterial agent, and the dipping gluing amount is 2-10 g/m2And (3) wrinkling at the drying temperature of 90-120 ℃ to obtain the disposable single pad paper with high barrier property, good softness and high strength.
2. The preparation method of the disposable underlay sheet paper as claimed in claim 1, wherein the production raw materials of the underlay sheet base paper are softwood pulp and other fibers, the weight proportion of the softwood pulp is 70-90%, the weight proportion of the other fibers is 10-30%, the other fibers are one or more of terylene, tencel and viscose fibers, the beating degree of the softwood pulp is 16-22 ° SR, the length of the other fibers is 3-10 mm, a PAE wet strength agent is added into the pulp, the using amount of the wet strength agent is 0.2-1.0%, the mixed pulp is diluted, screened, formed, pressed and dried to prepare the underlay sheet base paper, and the base paper is quantified to be 40-60 g/m2。
3. The method for preparing disposable packing paper as claimed in claim 1, wherein the dipping solution for dipping process comprises latex, water-proofing agent, nano cellulose and antibacterial agent, wherein the latex isThe acrylic emulsion and the vinyl acetate-ethylene copolymer emulsion are mixed in a ratio of 3: 7-7: 3, the mass concentration of the mixed emulsion is 5-20%, the glass transition temperature of the acrylic emulsion is-5-2 ℃, the used waterproofing agent is AKD, the mass concentration is 0.05-0.2%, the mass concentration of the nano-cellulose is 0.05-0.5%, the antibacterial agent is chitosan, the mass concentration is 0.1-1.0%, the base paper of the underlay sheet passes through an impregnation tank filled with impregnation liquid, and then the impregnation liquid is rolled and dried, and the gluing amount of the impregnation liquid is 2-10 g/m2。
4. The method for preparing disposable single-pad paper as claimed in claim 1, wherein the wrinkling treatment adopts a semi-dry doctor blade for wrinkling, the water content of the paper sheet is 10% -25% during the wrinkling operation, and the wrinkled single-pad paper is dried by hot air or a drying cylinder to obtain the disposable single-pad paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346907.XA CN114032702A (en) | 2021-11-15 | 2021-11-15 | Preparation method of high-barrier soft disposable packing paper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111346907.XA CN114032702A (en) | 2021-11-15 | 2021-11-15 | Preparation method of high-barrier soft disposable packing paper |
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| CN114032702A true CN114032702A (en) | 2022-02-11 |
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| CN202111346907.XA Pending CN114032702A (en) | 2021-11-15 | 2021-11-15 | Preparation method of high-barrier soft disposable packing paper |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3812000A (en) * | 1971-06-24 | 1974-05-21 | Scott Paper Co | Soft,absorbent,fibrous,sheet material formed by avoiding mechanical compression of the elastomer containing fiber furnished until the sheet is at least 80%dry |
| WO2006042444A1 (en) * | 2004-10-21 | 2006-04-27 | Kai Ling | A waterproof paper for sanitary articles and a process of making the same |
| CN100999883A (en) * | 2007-01-05 | 2007-07-18 | 宁波海基包装制品有限公司 | Degradable disposable medical nursing article and mfg. method thereof |
| CN102400410A (en) * | 2011-09-28 | 2012-04-04 | 浙江鑫丰特种纸业股份有限公司 | Medical crepe wrapping paper and production process thereof |
| CN202540825U (en) * | 2012-04-23 | 2012-11-21 | 杭州特种纸业有限公司 | Raw paper of medical wrinkle paper |
| CN108466465A (en) * | 2018-03-17 | 2018-08-31 | 刘秋萍 | A kind of clinical care pad and preparation method thereof |
| CN109719634A (en) * | 2018-11-30 | 2019-05-07 | 浙江金昌特种纸股份有限公司 | A kind of preparation method of long-life high-accuracy abrasive base paper |
| CN112442921A (en) * | 2019-09-04 | 2021-03-05 | 中国制浆造纸研究院有限公司 | Paper-based functional material and preparation method thereof |
-
2021
- 2021-11-15 CN CN202111346907.XA patent/CN114032702A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3812000A (en) * | 1971-06-24 | 1974-05-21 | Scott Paper Co | Soft,absorbent,fibrous,sheet material formed by avoiding mechanical compression of the elastomer containing fiber furnished until the sheet is at least 80%dry |
| WO2006042444A1 (en) * | 2004-10-21 | 2006-04-27 | Kai Ling | A waterproof paper for sanitary articles and a process of making the same |
| CN100999883A (en) * | 2007-01-05 | 2007-07-18 | 宁波海基包装制品有限公司 | Degradable disposable medical nursing article and mfg. method thereof |
| CN102400410A (en) * | 2011-09-28 | 2012-04-04 | 浙江鑫丰特种纸业股份有限公司 | Medical crepe wrapping paper and production process thereof |
| CN202540825U (en) * | 2012-04-23 | 2012-11-21 | 杭州特种纸业有限公司 | Raw paper of medical wrinkle paper |
| CN108466465A (en) * | 2018-03-17 | 2018-08-31 | 刘秋萍 | A kind of clinical care pad and preparation method thereof |
| CN109719634A (en) * | 2018-11-30 | 2019-05-07 | 浙江金昌特种纸股份有限公司 | A kind of preparation method of long-life high-accuracy abrasive base paper |
| CN112442921A (en) * | 2019-09-04 | 2021-03-05 | 中国制浆造纸研究院有限公司 | Paper-based functional material and preparation method thereof |
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