CN110952376A - Degradable printing type environment-friendly paper tape and preparation method and application thereof - Google Patents

Degradable printing type environment-friendly paper tape and preparation method and application thereof Download PDF

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Publication number
CN110952376A
CN110952376A CN201911406317.4A CN201911406317A CN110952376A CN 110952376 A CN110952376 A CN 110952376A CN 201911406317 A CN201911406317 A CN 201911406317A CN 110952376 A CN110952376 A CN 110952376A
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China
Prior art keywords
paper
pulp
preparation
degradable
wrinkling
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CN201911406317.4A
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Chinese (zh)
Inventor
刘茂根
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Shanghai Yongguan Zhongcheng New Material Technology Group Co ltd
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Shanghai Yongguan Zhongcheng New Material Technology Group Co ltd
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Priority to CN201911406317.4A priority Critical patent/CN110952376A/en
Publication of CN110952376A publication Critical patent/CN110952376A/en
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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
    • D21H21/18—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
    • 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
    • D21H17/25—Cellulose
    • 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
    • D21H17/29—Starch cationic
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21H21/10—Retention agents or drainage improvers
    • 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

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesive Tapes (AREA)
  • Paper (AREA)

Abstract

The invention relates to the field of adhesive tapes, and provides a degradable printing type environment-friendly paper adhesive tape as well as a preparation method and application thereof. When the degradable printing type environment-friendly paper tape is prepared, the base paper is prepared firstly, and the cationic starch, the carboxymethyl cellulose and the quaternary ammonium salt are added into the raw materials for preparing the base paper, so that the paper tape prepared by the invention has better degradable performance. In addition, the paper tape prepared by the method still has good initial adhesion, peeling force, tensile resistance, elongation and permanent adhesion under the condition of adding cationic starch, carboxymethyl cellulose and quaternary ammonium salt. The paper adhesive tape provided by the invention can be used for printing patterns according to use requirements, and is convenient and practical.

Description

Degradable printing type environment-friendly paper tape and preparation method and application thereof
Technical Field
The invention relates to the field of adhesive tapes, in particular to a degradable printing type environment-friendly paper adhesive tape and a preparation method and application thereof.
Background
The masking tape has the characteristics of high temperature resistance, good chemical solvent resistance, high adhesion, softness, conformability, no residual adhesive after tearing, and the like, and is widely applied to the fields of building decoration and electronic devices. The traditional masking paper adhesive tape is a roll-shaped adhesive tape which is mainly prepared by taking masking paper and pressure-sensitive adhesive as main raw materials, coating the pressure-sensitive adhesive on the masking paper and coating an anti-sticking material on the other side.
With the increasing environmental protection requirement, the demand of recycling degradability of paper is increasing. With the rise of the online shopping and express industry, a large number of express packaging boxes use OPP adhesive tapes, and the OPP adhesive tapes are made of polypropylene films as base materials, are basically unrecoverable and non-degradable, and are not beneficial to environmental protection.
Disclosure of Invention
In view of the above, the invention provides a degradable printing type environment-friendly paper tape, a preparation method and an application thereof.
The invention provides a preparation method of a degradable printing type environment-friendly paper tape, which comprises the following steps:
(1) providing base paper containing a wrinkled surface;
the raw materials for preparing the base paper comprise the following components in parts by mass:
Figure BDA0002348733950000011
the raw material for preparing the base paper also comprises water, wherein the mass of the paper pulp accounts for 3-5% of the total mass of the paper pulp and the water;
(2) carrying out impregnation treatment on the base paper and then drying to obtain impregnated paper;
the impregnation liquid for impregnation treatment comprises a mixed solution of carboxylic styrene-butadiene latex and water; the mass content of the carboxylic styrene-butadiene latex in the mixed solution is 20-25%;
(3) sequentially carrying out flexography and release treatment on the wrinkled surface of the impregnated paper, and then drying to obtain printing paper;
(4) and (3) coating the non-wrinkled surface of the impregnated paper with glue and then drying to obtain the degradable printing type environment-friendly paper adhesive tape.
Preferably, the quaternary ammonium salt comprises 3-chloroallylhexamethylenetetramine chloride.
Preferably, the preparation method of the base paper containing the wrinkled surface comprises the following steps:
mixing raw materials for preparing base paper to obtain mixed pulp;
sequentially diluting, purifying and screening the mixed pulp to obtain pulp flow;
and (3) sequentially carrying out forming, dewatering, squeezing, wrinkling and drying on the pulp flow to obtain the base paper containing the wrinkled surface.
Preferably, in the wrinkling process, the wrinkling dryness is 30-34%, the angle between a wrinkling scraper and a cylinder is 32-34%, and the wrinkling speed difference is 21-23%.
Preferably, the raw material mixing mode for preparing the raw paper containing the wrinkled surface is as follows:
mixing paper pulp and carboxymethyl cellulose, pulping, and then mixing with quaternary ammonium salt, wet strength agent, retention aid and cationic starch to obtain mixed pulp; the beating degree of beating is 45-65 degrees SR, and the wet weight is 8-11 g.
Preferably, the content of the impregnation liquid in the impregnated paper obtained in the step (2) is 13-18 g/m2。
Preferably, the release treatment in step (3) comprises the following steps: coating the mixed solution of the silicone-acrylic emulsion and water on the surface of impregnated paper after flexographic printing, wherein the coating weight is 3-5 g/m2(ii) a The mass content of the silicone-acrylic emulsion in the mixed solution is 20-25%.
Preferably, the gluing amount of the glue in the step (4) is 35g/m2。
The invention also provides the degradable printing type environment-friendly paper tape prepared by the method in the technical scheme.
The invention also provides application of the degradable printed environment-friendly paper adhesive tape in the technical scheme in the fields of express packaging, architectural decoration and electronic devices.
According to the preparation method of the degradable printing type environment-friendly paper tape, when the degradable printing type environment-friendly paper tape is prepared, the base paper is prepared, and the cationic starch, the carboxymethyl cellulose and the quaternary ammonium salt are added into the raw materials for preparing the base paper, so that the paper tape prepared by the preparation method disclosed by the invention has good degradability. The paper adhesive tape prepared by the invention also has better initial adhesion, peeling force, tensile resistance, elongation and permanent adhesion. The paper adhesive tape provided by the invention can be used for printing patterns according to use requirements, and is convenient and practical.
Detailed Description
The invention provides a preparation method of a degradable printing type environment-friendly paper tape, which comprises the following steps:
(1) providing base paper containing a wrinkled surface;
the raw materials for preparing the base paper comprise the following components in parts by mass:
Figure BDA0002348733950000031
the raw material for preparing the base paper also comprises water, wherein the mass of the paper pulp accounts for 3-5% of the total mass of the paper pulp and the water;
(2) carrying out impregnation treatment on the base paper and then drying to obtain impregnated paper;
the impregnation liquid for impregnation treatment comprises a mixed solution of styrene-butadiene latex and water; the mass content of the styrene-butadiene latex in the mixed solution is 25 percent;
(3) sequentially carrying out flexography and release treatment on the wrinkled surface of the impregnated paper, and then drying to obtain printing paper;
(4) and (3) coating the non-wrinkled surface of the impregnated paper with glue and then drying to obtain the degradable printing paper adhesive tape.
The present invention provides a base paper containing a wrinkled surface.
In the invention, the preparation method of the base paper containing the wrinkled surface comprises the following steps:
mixing raw materials for preparing base paper to obtain mixed pulp;
sequentially diluting, purifying and screening the mixed pulp to obtain pulp flow;
and (3) sequentially carrying out forming, dewatering, squeezing, wrinkling and drying on the pulp flow to obtain the base paper containing the wrinkled surface.
In the invention, the raw materials for preparing the base paper comprise the following components in parts by mass:
Figure BDA0002348733950000041
the raw materials for preparing the base paper also comprise water, and the mass of the paper pulp accounts for 3-5% of the total mass of the paper pulp and the water.
In the invention, the mass part of the pulp is preferably 92-94 parts, more preferably 93 parts, and the pulp is preferably northern Canada wood pulp. In the invention, the paper pulp is in a solid block shape or a plate shape, and water is added for beating during beating. In the invention, the mass of the paper pulp accounts for 3-5% of the total mass of the paper pulp and the water, preferably 3.5-4.8%, and more preferably 4-4.5%. The invention preferably controls the quality of the paper pulp and the water within the range, and is beneficial to improving the tensile resistance and the elongation of the environment-friendly paper tape.
Based on the mass portion of the paper pulp, the mass portion of the wet strength agent is preferably 3.5-4.5 parts, more preferably 4 parts, the wet strength agent is preferably polyamide polyepichlorohydrin resin, and more preferably the wet strength agent produced by Hangzhou Hua Hami Ma chemical company Limited. The mass portion of the retention aid is preferably 0.08-0.12 part by mass, more preferably 0.1 part by mass, and the retention aid is preferably polyacrylamide, more preferably a retention aid produced by Shandong Noll Biotech Co. Based on the mass parts of the paper pulp, the mass parts of the cationic starch are preferably 1.8-2.2 parts, more preferably 2 parts, and the cationic starch is preferably produced by Jiangxi Macroda chemical Co., Ltd; the mass portion of the carboxymethyl cellulose is preferably 0.28-0.32 part, more preferably 0.3 part, the mass portion of the quaternary ammonium salt is preferably 0.48-0.52 part, more preferably 0.5 part, and the quaternary ammonium salt preferably comprises 3-chloroallyl hexamethylenetetramine chloride. According to the invention, cationic starch, carboxymethyl cellulose and quaternary ammonium salt are added into raw materials for preparing base paper, so that the printing type environment-friendly paper adhesive tape prepared by the method has degradable performance. The raw materials of the base paper are preferably controlled to be the components, so that the prepared environment-friendly paper tape has better tensile resistance and elongation.
In the present invention, the raw material mixing method for preparing the base paper is preferably:
mixing paper pulp, water and carboxymethyl cellulose, pulping, and then mixing with quaternary ammonium salt, wet strength agent, retention aid and cationic starch to obtain mixed pulp. In the invention, the beating degree of beating is preferably 45-65 DEG SR, more preferably 50-60 DEG SR; the wet weight is preferably 8-11 g, and more preferably 9-10; the beating concentration is preferably 3 to 5 wt%, more preferably 3.5 to 4.8 wt%, and still more preferably 4 to 4.5 wt%. The invention preferably controls the beating degree and the wet weight within the ranges, and is beneficial to improving the tensile resistance and the elongation of the environment-friendly paper adhesive tape.
After the mixed pulp is obtained, the mixed pulp is sequentially diluted, purified and screened to obtain the flow pulp. The present invention does not require any particular implementation of the dilution, purification and screening procedures, and may be practiced in a manner well known to those skilled in the art.
After the pulp flow is obtained, the invention carries out forming, dewatering, squeezing, wrinkling and drying treatment on the pulp flow in sequence to obtain the base paper containing the wrinkled surface. In the present invention, the forming is preferably a jet forming, and more preferably a uniform jet of the slurry onto a forming wire. In the present invention, the dehydration is preferably performed by vacuum suction. In the invention, the wrinkling dryness is preferably 30-34%, more preferably 32%, the angle between the wrinkling blade and the drying cylinder is preferably 32-34%, more preferably 33%, and the difference of the wrinkling speed is preferably 21-23%, more preferably 22%.
After the base paper containing the wrinkled surface is obtained, the base paper is subjected to impregnation treatment and then dried to obtain impregnated paper. In the present invention, the impregnation treatment is preferably performed in the following manner: the base paper is passed through the impregnation liquid, and is measured by extrusion, and the sizing amount is 13-18 g/m2Preferably 15g/m2The content of the impregnation liquid in the impregnated paper is 13-18 g/m2Preferably 15g/m2. In the present invention, the impregnation liquid is preferably a mixed solution of carboxylated styrene-butadiene latex and water; the carboxyl butyl in the mixed solutionThe mass content of the benzene latex is preferably 25%. In the present invention, the carboxylated styrene-butadiene latex is preferably produced by Jiangyin Nippon chemical Co. The invention preferably adopts carboxylic styrene-butadiene latex to carry out impregnation treatment, which is beneficial to enhancing the degradation performance of paper; and after the styrene-butadiene latex impregnation treatment, the paper can be subjected to flexography on the wrinkled surface, the printing effect is good, and the image is clear. The present invention has no special requirement on the specific implementation mode of drying, and the drying mode known to those skilled in the art can be adopted.
After impregnated paper is obtained, the corrugated surface of the impregnated paper is sequentially subjected to flexography and release treatment, and then dried to obtain the printing paper. The method can perform flexography on the corrugated surface containing the impregnated paper according to the required pattern, has no special requirement on the specific implementation mode of the flexography, and adopts a flexography mode which is well known by the technical personnel in the field. In the present invention, the release treatment process is preferably as follows: coating the surface of the impregnated paper after printing with a mixed solution of silicone-acrylic emulsion and water, wherein the coating weight is preferably 3-5 g/m2More preferably 4.5g/m2(ii) a The mass content of the silicone-acrylic emulsion in the mixed solution is preferably 20-25%, and more preferably 21-24%. The present invention has no special requirement on the specific implementation mode of drying, and the drying mode known to those skilled in the art can be adopted.
After the printing paper is obtained, the non-wrinkled surface of the impregnated paper is coated with glue and then dried, so that the degradable printing type environment-friendly paper adhesive tape is obtained. In the invention, the gluing amount of the gluing is preferably 33-37 g/m2More preferably 35g/m2. In the invention, the preparation method of the glue for gluing is preferably as follows: the natural rubber is open-milled to a Mooney viscosity of
Figure BDA0002348733950000061
Then mixing the obtained product with methylbenzene, an antioxidant and petroleum resin, and stirring for 7-9 hours under a closed condition at the temperature to obtain glue; the mass ratio of the natural rubber to the petroleum resin to the antioxidant to the toluene is preferably 22-25: 2: 48-52, and more preferably 12:12:1: 25.
The invention also provides the degradable printing type environment-friendly paper tape prepared by the method. After the degradable printing type environment-friendly paper tape provided by the invention is used, the degradable printing type environment-friendly paper tape can be naturally degraded after being placed in the environment for about 180 days; the degradable printing type environment-friendly paper tape provided by the invention has better adhesive property and stripping property. The thickness of the degradable printing type environment-friendly paper tape provided by the invention is preferably 0.13-0.18 mm.
The invention also provides application of the degradable printed environment-friendly paper adhesive tape in the technical scheme in the fields of express packaging, architectural decoration and electronic devices. The degradable printing type environment-friendly paper tape plays a role in protecting the surface in the fields of architectural decoration and electronic devices.
According to the packaging method, the degradable printing type environment-friendly paper tape can be further used for packaging express cartons, and can be cut into finished products according to use requirements, for example, the degradable printing type environment-friendly paper tape is cut into finished products with the width of 4.6-5 cm, so that the packaging method can be conveniently applied to the field of express packaging.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
Example 1
Mixing paper pulp and water, then defibering the mixture by using pulping equipment, pulping at a pulping degree of 45 DEG SR, a wet weight of 10g and a pulping concentration of 4 wt%, adding carboxymethyl cellulose during pulping, feeding the obtained pulp into a pulp preparation tank, adding 3-chloroallyl hexamethylenetetramine chloride into the pulp preparation tank, stirring uniformly, adding a wet strength agent and a retention aid, stirring uniformly again, and adding cationic starch to obtain mixed pulp; wherein the paper pulp is Canadian northern wood paper pulp, the retention aid is polyacrylamide, the wet strength agent is polyamide polyepichlorohydrin resin, and the cationic starch is cationic starch produced by Hongda chemical production in Jiangxi; the mass parts of the paper pulp, the wet strength agent, the retention aid, the cationic starch, the carboxymethyl cellulose and the quaternary ammonium salt are 93 parts, 4 parts, 0.1 part, 1.8 parts, 0.28 part and 0.48 part in sequence.
The prepared mixed pulp is sent to a papermaking forebay for further dilution, purification and screening to obtain pulp flow, the pulp flow is uniformly sprayed on a forming net through a pulp flow box, partial water is removed through vacuum suction, the pulp flow is transferred to a squeezing part, wrinkling is carried out before a drying cylinder, the wrinkling dryness is controlled to be 32%, the angle between a wrinkling scraper and the cylinder is 33 degrees, the wrinkling speed difference is 22%, the wrinkling rate and the thickness are controlled by adjusting the angle of the scraper, and drying and dehydration are carried out after wrinkling is finished to obtain base paper.
Impregnating the obtained base paper, wherein the impregnation liquid is a mixed liquid of carboxylic styrene-butadiene latex and water, the mass concentration of the carboxylic styrene-butadiene latex in the mixed liquid is 25%, conveying the impregnation liquid into an impregnation tank, allowing the paper to pass through the impregnation tank, and measuring by extrusion, wherein the sizing amount is 15g/m2And then drying and coiling to obtain impregnated paper.
According to the required pattern, flexography and release treatment are sequentially carried out on the wrinkled surface containing impregnated paper, and the release treatment process comprises the following steps: scraping the mixed solution of the silicone-acrylic emulsion and water on the surface of the printing layer of the impregnated paper by using an air knife, wherein the mass content of the silicone-acrylic emulsion in the mixed solution is 20 percent, and the coating weight of the mixed solution is 4.5g/m2And then drying and coiling.
Then coating glue on the non-wrinkled surface of impregnated paper, wherein the preparation method of the glue comprises the following steps: the preparation method comprises the following steps of (1) open-milling natural rubber until the Mooney viscosity is 60, sequentially adding toluene, an antioxidant and petroleum resin into a rubber making kettle in sequence, closing a reaction kettle, stirring for 8 hours, and uniformly dissolving all materials to obtain glue; wherein the mass ratio of the natural rubber to the petroleum resin to the antioxidant to the toluene is 24:24:2: 50. Spreading the glue on a coating head of a coating machine, and coating the non-wrinkled surface of impregnated paper with glue amount of 35g/m2And then drying and coiling to obtain the environment-friendly paper adhesive tape.
Example 2
Mixing paper pulp and water, then defibering the mixture by using pulping equipment, wherein the pulping degree is 55 DEG SR, the wet weight is 8g, and the pulping concentration is 4.8 wt%, adding carboxymethyl cellulose during pulping, feeding the obtained pulp into a pulp preparation tank, adding 3-chloroallyl hexamethylenetetramine chloride into the pulp preparation tank, stirring the mixture uniformly, adding a wet strength agent and a retention aid, stirring the mixture uniformly again, and adding cationic starch to obtain mixed pulp; wherein the paper pulp is Canadian northern wood paper pulp, the retention aid is polyacrylamide produced by Shandong Noel Biotechnology Co., Ltd, the wet strength agent is polyamide polyepichlorohydrin resin produced by Hangzhou Hanglima chemical Co., Ltd, and the cationic starch is cationic starch produced by Jiangxi Hongda chemical industry; the mass portions of the paper pulp, the wet strength agent, the retention aid, the cationic starch, the carboxymethyl cellulose and the quaternary ammonium salt are 93 portions, 3.8 portions, 0.1 portion, 2 portions, 0.3 portion and 0.5 portion in sequence.
The prepared mixed pulp is sent to a papermaking forebay for further dilution, purification and screening to obtain pulp flow, the pulp flow is uniformly sprayed on a forming net through a pulp flow box, partial water is removed through vacuum suction, the pulp flow is transferred to a squeezing part, wrinkling is carried out before a drying cylinder, the wrinkling dryness is controlled to be 32%, the angle between a wrinkling scraper and the cylinder is 33 degrees, the wrinkling speed difference is 22%, the wrinkling rate and the thickness are controlled by adjusting the angle of the scraper, and drying and dehydration are carried out after wrinkling is finished to obtain base paper.
The obtained base paper is impregnated, the impregnation liquid is a mixed liquid of carboxylic styrene-butadiene latex and water, the mass concentration of the carboxylic styrene-butadiene latex in the mixed liquid is 23.8 percent, the impregnation liquid is sent into an impregnation tank, the paper passes through the impregnation tank, the sizing amount is 14.3g/m through extrusion metering2And then drying and coiling to obtain impregnated paper.
According to the required pattern, carry out flexography and release type processing in proper order at the corrugating face that contains impregnated paper, release type processing includes: scraping the mixed solution of the silicone-acrylic emulsion and water on the surface of the printing layer of the impregnated paper by using an air knife, wherein the mass content of the silicone-acrylic emulsion in the mixed solution is 20 percent, and the coating weight of the mixed solution is 4.5g/m2And then drying and coiling.
Then coating glue on the non-wrinkled surface of impregnated paper, wherein the preparation method of the glue comprises the following steps: the preparation method comprises the following steps of (1) open-milling natural rubber until the Mooney viscosity is 60, sequentially adding toluene, an antioxidant and petroleum resin into a rubber making kettle in sequence, closing a reaction kettle, stirring for 8 hours, and uniformly dissolving all materials to obtain glue; wherein the mass ratio of the natural rubber to the petroleum resin to the antioxidant to the toluene is 24:24:2: 50. Applying glue to coating head of coating machine, and impregnating paperThe wrinkled surface is coated with glue, and the coating amount is 35g/m2And then drying and coiling to obtain the environment-friendly paper adhesive tape.
Example 3
Mixing paper pulp and water, then defibering the mixture by using pulping equipment, wherein the pulping degree is 65 DEG SR, the wet weight is 11g, and the pulping concentration is 4.8 wt%, adding carboxymethyl cellulose during pulping, feeding the obtained pulp into a pulp preparation tank, adding 3-chloroallyl hexamethylenetetramine chloride into the pulp preparation tank, stirring the mixture uniformly, adding a wet strength agent and a retention aid, stirring the mixture uniformly again, and adding cationic starch to obtain mixed pulp; wherein the paper pulp is Canadian northern wood paper pulp, the retention aid is polyacrylamide produced by Shandong Noel Biotechnology Co., Ltd, the wet strength agent is polyamide polyepichlorohydrin resin produced by Hangzhou Hanglima chemical Co., Ltd, and the cationic starch is cationic starch produced by Jiangxi Hongda chemical industry; the mass parts of the paper pulp, the wet strength agent, the retention aid, the cationic starch, the carboxymethyl cellulose and the quaternary ammonium salt are 93 parts, 3.8 parts, 0.1 part, 2.2 parts, 0.32 part and 0.52 part in sequence.
The prepared mixed pulp is sent to a papermaking forebay for further dilution, purification and screening to obtain pulp flow, the pulp flow is uniformly sprayed on a forming net through a pulp flow box, partial water is removed through vacuum suction, the pulp flow is transferred to a squeezing part, wrinkling is carried out before a drying cylinder, the wrinkling dryness is controlled to be 32%, the angle between a wrinkling scraper and the cylinder is 33 degrees, the wrinkling speed difference is 22%, the wrinkling rate and the thickness are controlled by adjusting the angle of the scraper, and drying and dehydration are carried out after wrinkling is finished to obtain base paper.
The obtained base paper is impregnated, the impregnation liquid is a mixed liquid of carboxylic styrene-butadiene latex and water, the mass concentration of the carboxylic styrene-butadiene latex in the mixed liquid is 23.8 percent, the impregnation liquid is sent into an impregnation tank, the paper passes through the impregnation tank, the sizing amount is 14.3g/m through extrusion metering2And then drying and coiling to obtain impregnated paper.
According to the required pattern, carry out flexography and release type processing in proper order at the corrugating face that contains impregnated paper, release type processing includes: scraping the mixed solution of the silicone-acrylic emulsion and water on the surface of the printing layer of impregnated paper by using an air knife, wherein the mass content of the silicone-acrylic emulsion in the mixed solution is20% and the coating weight of the mixed solution was 4.5g/m2And then drying and coiling.
Then coating glue on the non-wrinkled surface of impregnated paper, wherein the preparation method of the glue comprises the following steps: the preparation method comprises the following steps of (1) open-milling natural rubber until the Mooney viscosity is 60, sequentially adding toluene, an antioxidant and petroleum resin into a rubber making kettle in sequence, closing a reaction kettle, stirring for 8 hours, and uniformly dissolving all materials to obtain glue; wherein the mass ratio of the natural rubber to the petroleum resin to the antioxidant to the toluene is 24:24:2: 50. Spreading the glue on a coating head of a coating machine, and coating the non-wrinkled surface of impregnated paper with glue amount of 35g/m2And then drying and coiling to obtain the environment-friendly paper adhesive tape.
The performance of the environment-friendly paper tape prepared in the examples 1 to 3 was tested, and the test results are shown in table 1:
table 1 results of performance test of the environment-friendly paper tapes prepared in examples 1 to 3
Figure BDA0002348733950000101
The test results in table 1 show that the environment-friendly paper tape provided by the invention has better degradability, and meanwhile, the environment-friendly paper tape provided by the invention has better initial adhesion, peeling force, tensile resistance, elongation and permanent adhesion; in addition, the environment-friendly paper adhesive tape provided by the invention can be printed with required patterns as required, and is convenient and practical.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A preparation method of a degradable printing type environment-friendly paper tape comprises the following steps:
(1) providing base paper containing a wrinkled surface;
the raw materials for preparing the base paper comprise the following components in parts by mass:
Figure FDA0002348733940000011
the raw material for preparing the base paper also comprises water, wherein the mass of the paper pulp accounts for 3-5% of the total mass of the paper pulp and the water;
(2) carrying out impregnation treatment on the base paper and then drying to obtain impregnated paper;
the impregnation liquid for impregnation treatment comprises a mixed solution of carboxylic styrene-butadiene latex and water; the mass content of the carboxylic styrene-butadiene latex in the mixed solution is 20-25%;
(3) sequentially carrying out flexography and release treatment on the wrinkled surface of the impregnated paper, and then drying to obtain printing paper;
(4) and (3) coating the non-wrinkled surface of the impregnated paper with glue and then drying to obtain the degradable printing type environment-friendly paper adhesive tape.
2. The method of claim 1, wherein the quaternary ammonium salt comprises 3-chloroallylhexamethylenetetramine chloride.
3. The method of claim 1, wherein the creped surface-containing base paper is prepared by a method comprising the steps of:
mixing raw materials for preparing base paper to obtain mixed pulp;
sequentially diluting, purifying and screening the mixed pulp to obtain pulp flow;
and (3) sequentially carrying out forming, dewatering, squeezing, wrinkling and drying on the pulp flow to obtain the base paper containing the wrinkled surface.
4. The preparation method according to claim 3, wherein in the wrinkling process, the wrinkling dryness is 30-34%, the angle between a wrinkling blade and a cylinder is 32-34%, and the wrinkling speed difference is 21-23%.
5. The preparation method according to claim 3, wherein the raw material mixing mode for preparing the raw paper containing the wrinkled surface is as follows:
mixing paper pulp and carboxymethyl cellulose, pulping, and then mixing with quaternary ammonium salt, wet strength agent, retention aid and cationic starch to obtain mixed pulp; the beating degree of beating is 45-65 degrees SR, and the wet weight is 8-11 g.
6. The preparation method according to claim 1, wherein the content of the impregnation liquid in the impregnated paper obtained in the step (2) is 13-18 g/m2。
7. The preparation method according to claim 1, wherein the release treatment in the step (3) comprises the following steps: coating the mixed solution of the silicone-acrylic emulsion and water on the surface of impregnated paper after flexographic printing, wherein the coating weight is 3-5 g/m2(ii) a The mass content of the silicone-acrylic emulsion in the mixed solution is 20-25%.
8. The preparation method according to claim 1, wherein the coating amount of the coating in the step (4) is 33-37 g/m2。
9. The degradable printing type environment-friendly paper tape prepared by the method of any one of claims 1 to 8.
10. The use of the degradable printed environmentally friendly paper tape of claim 9 in the fields of express packaging, architectural decoration, and electronics.
CN201911406317.4A 2019-12-31 2019-12-31 Degradable printing type environment-friendly paper tape and preparation method and application thereof Pending CN110952376A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104499371A (en) * 2014-11-25 2015-04-08 南通四通林业机械制造安装有限公司 High strength impregnation textured paper production process
CN104499355A (en) * 2014-11-25 2015-04-08 南通四通林业机械制造安装有限公司 Textured base paper dipping production technology
CN104962210A (en) * 2015-07-15 2015-10-07 上海永冠胶粘制品股份有限公司 Protective adhesive tape leaving no residual adhesive and preparation method of protective adhesive tape
CN105350386A (en) * 2015-11-06 2016-02-24 淄博欧木特种纸业有限公司 Novel adhesive tape special paper and preparation method thereof
CN108385425A (en) * 2018-04-02 2018-08-10 浙江晶鑫特种纸业有限公司 A kind of preparation process of high interfacial bonding strength crepe paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104499371A (en) * 2014-11-25 2015-04-08 南通四通林业机械制造安装有限公司 High strength impregnation textured paper production process
CN104499355A (en) * 2014-11-25 2015-04-08 南通四通林业机械制造安装有限公司 Textured base paper dipping production technology
CN104962210A (en) * 2015-07-15 2015-10-07 上海永冠胶粘制品股份有限公司 Protective adhesive tape leaving no residual adhesive and preparation method of protective adhesive tape
CN105350386A (en) * 2015-11-06 2016-02-24 淄博欧木特种纸业有限公司 Novel adhesive tape special paper and preparation method thereof
CN108385425A (en) * 2018-04-02 2018-08-10 浙江晶鑫特种纸业有限公司 A kind of preparation process of high interfacial bonding strength crepe paper

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