CN116163160A - Paper towel without chemical fiber and production method thereof - Google Patents

Paper towel without chemical fiber and production method thereof Download PDF

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Publication number
CN116163160A
CN116163160A CN202211571706.4A CN202211571706A CN116163160A CN 116163160 A CN116163160 A CN 116163160A CN 202211571706 A CN202211571706 A CN 202211571706A CN 116163160 A CN116163160 A CN 116163160A
Authority
CN
China
Prior art keywords
pulp
paper
mixing
bleached
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211571706.4A
Other languages
Chinese (zh)
Inventor
胡海兵
桑如岳
陈华
邱淑勇
刘忠土
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hmei Machinery & Engineering Co
Original Assignee
Hmei Machinery & Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hmei Machinery & Engineering Co filed Critical Hmei Machinery & Engineering Co
Priority to CN202211571706.4A priority Critical patent/CN116163160A/en
Publication of CN116163160A publication Critical patent/CN116163160A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • D21H27/30—Multi-ply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
    • 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
    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
    • D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
    • 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
    • D21H11/12—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
    • 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
    • D21H17/17—Ketenes, e.g. ketene dimers
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • 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
    • 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
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/26—All layers being made of paper or paperboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/12—Coating on the layer surface on paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption

Abstract

The invention relates to a paper towel without chemical fiber, which is formed by compounding a surface layer, a bottom layer and a core layer, wherein: the surface and bottom layers are formed by mixing 80% bleached softwood and 20% bleached hardwood (or flash-dried) pulp, and the core layer is formed by mixing 80% bleached hardwood (or flash-dried) pulp and 20% bleached softwood pulp. The invention relates to a paper towel paper product with stronger structure, high bulk and good absorbability and softness on the surface of crepe paper and a production method thereof, which has reasonable design and scientific process, adopts the combination proportion of softwood pulp, hardwood pulp, flash drying pulp, cotton pulp, fluff pulp and the like, and is matched with temporary reinforcing glue, a papermaking wet strength agent, a dispersing agent and a neutral sizing agent for forming paper.

Description

Paper towel without chemical fiber and production method thereof
Technical Field
The invention relates to paper and paper processing products, in particular to a paper towel without chemical fiber and a production method thereof.
Background
Various tissues, disposable towel and bath tissues and various wiping articles with high absorptivity and softness are not separated from each other in life, various disposable wiping articles and non-woven fabrics are available on the market, chemical fibers are not separated from each other, chemical fibers are well known as petroleum products, the functions of the chemical fibers are very consistent with the current fast-paced life, the molecular structure of the chemical fibers is relatively stable, the decomposition and degradation of the chemical fibers are difficult, and the chemical fibers are searched for replacing raw materials and products in many countries and institutions at present.
The production requirement of the paper towel with enhanced surface, softness and high absorptivity is that the basic raw materials are selected and manufactured and processed, so that the paper towel is inherently more loose and soft, has better strength through surface printing glue, and provides more choices and prospects in the disposable product industry.
Disclosure of Invention
The invention aims to adopt a plurality of plant fiber raw materials, and is prepared by coating surface reinforcing glue on the front and back sides of wet paper respectively after waiting for the plant fiber to form paper by using a softener, a papermaking wet strength agent and a dispersing agent, drying at a high temperature in a large cylinder and wrinkling. The product has high bulk, good absorbency, water retention, good softness and skin friendliness, no chemical fiber, and high dry strength and wet strength (temporary strength is naturally hydrolyzed after a period of time). The invention relates to a new product of disposable articles industry and paper for daily use and a production method thereof.
The invention relates to a paper towel without chemical fiber, which is formed by compounding a surface layer, a bottom layer and a core layer, wherein: the surface and bottom layers are formed by mixing 80% bleached softwood and 20% bleached hardwood (or flash-dried) pulp, and the core layer is formed by mixing 80% bleached hardwood (or flash-dried) pulp and 20% bleached softwood pulp.
The invention also comprises a production method of the paper towel without chemical fiber, which comprises the steps of raw material selection, pulp mixing and pulping, dilution and pulp mixing, forming, compounding, gluing, pre-drying and drying by a dryer, and wrinkling to form paper, and comprises the following steps:
(1) The surface, the bottom layer adopts 80% bleached needle wood, 20% bleached broadleaf wood (or flash drying) pulp mixed pulp, the concentration is 5-6%, after pulping, the beating degree is 26+/-2 DEG SR, and the wet weight is 8-12 g; mixing pulp concentration in a pulp pond to 2-3%, adding 0-20kg of wet strength agent per ton of paper for mixing for 30-40 minutes, adding AKD (alkyl ketene dimer) according to 5-15 kg of the dosage of per ton of paper for pulp mixing, adding 2 kg of diluted PEO (PEO per ton of paper) into a high-level box for forming by a low-quantitative cylinder former after mixing pulp concentration to 0.1-0.2%;
(2) The core layer is made of 80% bleached hardwood (or flash drying) pulp and 20% bleached softwood pulp, the concentration of the bleached hardwood (or flash drying) pulp is 5-6%, the beating degree is 18+/-2 DEG SR, and the wet weight is 4-8 g; adding diluted PEO ton paper with the dosage of 2 kg into a high-level box after the pulp concentration is regulated to 0.1-0.2%, and forming by a cylinder former;
(3) After the surface layer, the core layer and the bottom layer are compounded by three layers (or multiple layers) of couch rolls, water is pressed out by pressing, the surface of the wet paper after pressing is coated with low-quantitative latticed glue by transferring, and the glue surface is primarily solidified by infrared (or hot air) radiation; the other surface is transferred through the felt and is also coated with latticed glue; the wet paper sheet is pressed and stuck on a large drying cylinder through a carrier roller for drying and is wrinkled by a scraper.
Preferably, the invention further comprises the steps of: the paper sheet after primary wrinkling is led out of the drying cylinder, the other surface is coated by grid transfer, the rubber surface is primarily solidified by infrared (or high-temperature hot air) and then is stuck on a large drying cylinder by a backing roll to be dried, and meanwhile, the paper sheet is formed by secondary wrinkling of a scraper.
Preferably, the invention further comprises the steps of: according to the method, after wet paper sheets are compositely molded and pressed, a semi-finished product is obtained by drying in a single large cylinder or multiple cylinders for standby; the semi-finished paper roll is unreeled by an unreeling mechanism and coated once.
Preferably, the mesh-like glue on the front and back surfaces has a temporary reinforcing coating which hydrolyzes naturally (loses strength) after a certain time in water.
Preferably, the mesh shape of the temporary reinforcing coating may be a honeycomb mesh, the pitch of the mesh lines being 1.5-2mm, and the width of the glue lines being 0.2-0.5mm.
Preferably, the temporary reinforcing coating layer is a strong resin having temporary dry and wet properties, such as a modified polyacrylamide resin, a modified acrylate resin, or a glyoxal polyamide resin.
Preferably, the surface layer, the bottom layer and the core layer can be formed by combining a plurality of cylinder mould, or by forming a plurality of inclined mould.
Preferably, the grid transfer coating mechanism is a gravure printing mechanism, or a screen roller transfer mechanism, and must be double-sided coated.
The invention relates to a paper towel paper product with stronger structure, high bulk and good absorbability and softness on the surface of crepe paper and a production method thereof, which has reasonable design and scientific process, adopts the combination proportion of softwood pulp, hardwood pulp, flash drying pulp, cotton pulp, fluff pulp and the like, and is matched with temporary reinforcing glue, a papermaking wet strength agent, a dispersing agent and a neutral sizing agent for forming paper.
Detailed Description
The technical scheme of the invention is further specifically described by the following examples.
Example 1 of the embodiment
Firstly, the surface and the bottom layer adopt mixed pulp of 80 percent bleached softwood and 20 percent bleached hardwood (or flash drying) pulp, the concentration of the mixed pulp is 5-6 percent, after pulping, the beating degree is 26+/-2 DEG SR, and the wet weight is 8-12 g; mixing pulp concentration in the pulp pond to 2-3%, adding 0-20kg wet strength agent per ton of paper for mixing for 30-40 min, adding AKD pulp according to 5-15 kg per ton of paper, mixing pulp concentration to 0.1-0.2%, adding diluted PEO 2 kg per ton of paper in a high-level box, and molding by a low-quantitative cylinder former.
Meanwhile, the core layer adopts 80% bleached hardwood (or flash drying) pulp and 20% bleached softwood pulp, the concentration of the bleached hardwood (or flash drying) pulp is 5-6%, after pulping, the beating degree is 18+/-2 DEG SR, and the wet weight is 4-8 g; after the pulp concentration is regulated to 0.1-0.2%, adding diluted PEO ton paper with the dosage of 2 kg into a high-level box, and forming by a cylinder former.
Finally, after the surface layer, the core layer and the bottom layer are compounded by three layers (or multiple layers) of the couch roll, water is pressed out by overpressure. After being pressed, the surface of the wet paper page is coated with low-quantitative latticed glue by transfer, and the glue surface is primarily solidified by infrared (or high-temperature hot air). The other side is transferred through the felt and is also coated with latticed glue. The wet paper sheet is pressed and stuck on a large drying cylinder through a carrier roller for drying and is wrinkled by a scraper.
Example 2 of the embodiment
Firstly, the surface and the bottom layer adopt mixed pulp of 80 percent bleached softwood and 20 percent bleached hardwood (or flash drying) pulp, the concentration of the mixed pulp is 5-6 percent, after pulping, the beating degree is 26+/-2 DEG SR, and the wet weight is 8-12 g; mixing pulp concentration to 2-3% in pulp pond, adding wet strength agent in 0-20 kg/ton of paper, mixing for 30-40 min, adding AKD pulp in 5-15 kg/ton of paper, mixing pulp concentration to 0.1-0.2%, adding diluted PEO pulp in 2 kg/ton in high-level box, and feeding into the surface layer and bottom layer of the former on the three-layer inclined net former.
Meanwhile, the core layer adopts 80% bleached hardwood (or flash drying) pulp and 20% bleached softwood pulp, the concentration of the bleached hardwood (or flash drying) pulp is 5-6%, after pulping, the beating degree is 18+/-2 DEG SR, and the wet weight is 4-8 g; after the pulp concentration is regulated to 0.1-0.2%, adding diluted PEO ton paper with 2 kg into a high-level box, and respectively feeding the diluted PEO ton paper into a middle layer on a three-layer inclined wire former.
Finally, after the three layers of inclined nets are formed, the wet paper is pressed out to press out water. After being pressed, the surface of the wet paper page is coated with low-quantitative latticed glue by transfer, and the glue surface is primarily solidified by infrared (or high-temperature hot air). Pressing the wet paper sheet on a large drying cylinder through a carrier roller for drying and wrinkling by a scraper. The paper sheet after primary wrinkling is led out of the drying cylinder, the other surface is coated by grid transfer, the rubber surface is primarily solidified by infrared (or high-temperature hot air) and then is stuck on a large drying cylinder by a backing roll to be dried, and meanwhile, the paper sheet is formed by secondary wrinkling of a scraper.
Example 3 of the embodiment
Referring to examples 1 and 2, when wet paper sheets were formed by composite molding, they were pressed and dried into semi-finished products in a single vat or multiple vats for use. The semi-finished paper roll is unreeled by an unreeling mechanism, coated once, the surface of the paper is coated with low-quantitative latticed glue by transfer, and the glue surface is primarily solidified by infrared (or hot air). The wet paper sheet is pressed and stuck on a large drying cylinder through a carrier roller for drying and is wrinkled once by a scraper. The paper sheet after primary wrinkling is led out of the drying cylinder, the other surface is coated by grid transfer, the rubber surface is primarily solidified by infrared (or high-temperature hot air) and then is stuck on a large drying cylinder by a backing roll to be dried, and meanwhile, the paper sheet is formed by secondary wrinkling of a scraper.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modified structure of the present invention falls within the scope of the present invention.

Claims (9)

1. A tissue free of chemical fibers, characterized in that: is formed by compounding a surface layer, a bottom layer and a core layer, wherein: the surface and bottom layers are formed by mixing 80% bleached softwood and 20% bleached hardwood (or flash-dried) pulp, and the core layer is formed by mixing 80% bleached hardwood (or flash-dried) pulp and 20% bleached softwood pulp.
2. The production method of the paper towel without chemical fiber comprises the steps of raw material selection, pulp mixing and pulping, dilution and pulp mixing, forming, compounding, gluing, pre-drying and wrinkling to form paper, and is characterized by comprising the following steps of:
(1) The surface, the bottom layer adopts 80% bleached needle wood and 20% bleached broadleaf wood (or flash drying) pulp mixed pulp, the concentration is 5-6%, after pulping, the beating degree is 26+/-2 DEG SR, and the wet weight is 8-12 g; mixing pulp concentration in a pulp pond to 2-3%, adding 0-20kg of wet strength agent per ton of paper for mixing for 30-40 minutes, adding AKD (alkyl ketene dimer) according to 5-15 kg of the dosage of per ton of paper for pulp mixing, adding 2 kg of diluted PEO (PEO per ton of paper) into a high-level box for forming by a low-quantitative cylinder former after mixing pulp concentration to 0.1-0.2%;
(2) The core layer is made of 80% bleached hardwood (or flash drying) pulp and 20% bleached softwood pulp, the concentration of the bleached hardwood (or flash drying) pulp is 5-6%, after pulping, the beating degree is 18+/-2 DEG SR, and the wet weight is 4-8 g; adding diluted PEO ton paper with the dosage of 2 kg into a high-level box after the pulp concentration is regulated to 0.1-0.2%, and forming by a cylinder former;
(3) After the surface layer, the core layer and the bottom layer are compounded by three layers (or multiple layers) of couch rolls, water is pressed out by pressing, the surface of the wet paper after pressing is coated with low-quantitative latticed glue by transferring, and the glue surface is primarily solidified by infrared (or hot air) radiation; the other surface is transferred through the felt and is also coated with latticed glue; the wet paper sheet is pressed and stuck on a large drying cylinder through a carrier roller for drying and is wrinkled by a scraper.
3. The method for producing a tissue free of chemical fiber according to claim 2, further comprising the steps of: the paper sheet after primary wrinkling is led out of the drying cylinder, the other surface is coated by grid transfer, the rubber surface is primarily solidified by infrared (or high-temperature hot air) and then is stuck on a large drying cylinder by a backing roll to be dried, and meanwhile, the paper sheet is formed by secondary wrinkling of a scraper.
4. A method of producing a tissue free of chemical fibers according to claim 2 or 3, characterized by the further steps of: according to the method, after wet paper sheets are compositely molded and pressed, a semi-finished product is obtained by drying in a single large cylinder or multiple cylinders for standby; the semi-finished paper roll is unreeled by an unreeling mechanism and coated once.
5. A method of producing a tissue free of chemical fibers according to claim 2, characterized in that: the latticed gel on the front and back surfaces has a temporary reinforcing coating, which naturally hydrolyzes (loses strength) after being kept in water for a certain time.
6. The method for producing a tissue free of chemical fiber according to claim 5, wherein: the mesh shape of the temporary reinforcing coating may be a honeycomb mesh with the pitch of the mesh lines being 1.5-2mm and the width of the glue lines being 0.2-0.5mm.
7. A method of producing a tissue free of chemical fibers according to claim 5 or 6, characterized in that: the temporary reinforcing coating is a strong resin with temporary dry and wet properties, such as modified polyacrylamide resin, modified acrylic ester or glyoxal polyamide resin.
8. A method of producing a tissue free of chemical fibers according to claim 2, characterized in that: the composite mode of the surface layer, the bottom layer and the core layer can be multi-cylinder mould composite forming or multi-layer inclined net forming.
9. A method of producing a tissue free of chemical fibers according to claim 2, characterized in that: the grid transfer coating mechanism is a gravure printing mechanism, can also be a screen roller transfer mechanism, and must be subjected to double-sided coating.
CN202211571706.4A 2022-12-08 2022-12-08 Paper towel without chemical fiber and production method thereof Pending CN116163160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211571706.4A CN116163160A (en) 2022-12-08 2022-12-08 Paper towel without chemical fiber and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211571706.4A CN116163160A (en) 2022-12-08 2022-12-08 Paper towel without chemical fiber and production method thereof

Publications (1)

Publication Number Publication Date
CN116163160A true CN116163160A (en) 2023-05-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211571706.4A Pending CN116163160A (en) 2022-12-08 2022-12-08 Paper towel without chemical fiber and production method thereof

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Country Link
CN (1) CN116163160A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981557A (en) * 1988-07-05 1991-01-01 The Procter & Gamble Company Temporary wet strength resins with nitrogen heterocyclic nonnucleophilic functionalities and paper products containing same
CN1179193A (en) * 1995-02-15 1998-04-15 普罗克特和甘保尔公司 Method for enhancing bulk softeness of tissue paper and product therefrom
CN1261938A (en) * 1997-05-12 2000-08-02 普罗克特和甘保尔公司 Soft multi-ply tissue paper having surface deposited strengthening agent
CN101708664A (en) * 2009-11-06 2010-05-19 江阴市安氏彩印包装有限公司 Preparation method of environment-friendly paper tablecloth
CN108677592A (en) * 2018-04-27 2018-10-19 广东理文卫生用纸有限公司 A kind of paper for daily use pulping process having both intensity and pliability
CN114808525A (en) * 2022-05-26 2022-07-29 华南理工大学 Soft, easily degradable and flushable plant fiber facial cleansing towel and preparation method and application thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981557A (en) * 1988-07-05 1991-01-01 The Procter & Gamble Company Temporary wet strength resins with nitrogen heterocyclic nonnucleophilic functionalities and paper products containing same
CN1179193A (en) * 1995-02-15 1998-04-15 普罗克特和甘保尔公司 Method for enhancing bulk softeness of tissue paper and product therefrom
CN1261938A (en) * 1997-05-12 2000-08-02 普罗克特和甘保尔公司 Soft multi-ply tissue paper having surface deposited strengthening agent
CN101708664A (en) * 2009-11-06 2010-05-19 江阴市安氏彩印包装有限公司 Preparation method of environment-friendly paper tablecloth
CN108677592A (en) * 2018-04-27 2018-10-19 广东理文卫生用纸有限公司 A kind of paper for daily use pulping process having both intensity and pliability
CN114808525A (en) * 2022-05-26 2022-07-29 华南理工大学 Soft, easily degradable and flushable plant fiber facial cleansing towel and preparation method and application thereof

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