CN113402996A - Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof - Google Patents

Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof Download PDF

Info

Publication number
CN113402996A
CN113402996A CN202110707612.4A CN202110707612A CN113402996A CN 113402996 A CN113402996 A CN 113402996A CN 202110707612 A CN202110707612 A CN 202110707612A CN 113402996 A CN113402996 A CN 113402996A
Authority
CN
China
Prior art keywords
recycled
daily chemical
separated
chemical label
environment
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
CN202110707612.4A
Other languages
Chinese (zh)
Inventor
陈衍河
车凌风
梁超纯
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.)
Foshan Shunde Weidali Printing Co ltd
Original Assignee
Foshan Shunde Weidali Printing Co ltd
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 Foshan Shunde Weidali Printing Co ltd filed Critical Foshan Shunde Weidali Printing Co ltd
Priority to CN202110707612.4A priority Critical patent/CN113402996A/en
Publication of CN113402996A publication Critical patent/CN113402996A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/062—Copolymers with monomers not covered by C09J133/06
    • C09J133/064—Copolymers with monomers not covered by C09J133/06 containing anhydride, COOH or COOM groups, with M being metal or onium-cation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2425/00—Presence of styrenic polymer
    • C09J2425/006—Presence of styrenic polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)

Abstract

The invention discloses a preparation method of an environment-friendly daily chemical label capable of being separated and recycled by washing and a product thereof, and the preparation method of the environment-friendly daily chemical label capable of being separated and recycled by washing comprises the following steps: A. respectively coating removable adhesive on any surface of the surface material and any surface of the base paper; B. coating a foaming agent or a thermal expansion agent on the side of the face material coated with the removable adhesive; C. and compounding the surface of the surface material coated with the foaming agent or the thermal expansion agent with the surface of the base paper coated with the removable adhesive to obtain the environment-friendly daily chemical label which can be washed, separated and recycled. The preparation method of the environment-friendly daily chemical label capable of being separated from and recycled by water washing is simple, the prepared label can fall off by water washing, the falling speed is high, the separation effect with the bottle body is good, the separation integrity is good, the environment-friendly daily chemical label capable of being separated from and recycled by water washing can fall off by water washing, and the environment-friendly daily chemical label is high in use convenience and good in using effect.

Description

Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof
Technical Field
The invention relates to the technical field of labels, in particular to a preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled and a product thereof.
Background
In the packing design, need be attached on the body of bottle with the label usually, at present, the label that pastes the bottle is most for paper label, PE label, BOPP label, pearlized film label and PET label etc. and the material of most of body on the market all is mainly with glass container, PETG container and PET bottle, after label and bottle laminating together, the label separates with the bottle very difficult again, even if can separate, the label also remains easily on the bottle, separation integrality is low, separation efficiency is low. However, the bottle cap, the bottle body and the label are required to be separated for recycling of the common bottle, because the melting points, materials and components of the bottle cap, the bottle body and the label are different, if the label is not completely separated from the bottle, the quality of a material newly generated during recycling of the bottle is affected, and if the purpose of generating a high-purity high-quality recycled material is achieved, the problem of separating the label from the bottle needs to be solved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled, the preparation method is simple, the prepared label can fall off through washing, the falling speed is high, the separation effect with a bottle body is good, the separation integrity is good, the separation efficiency of the label and the bottle is effectively improved, and the problems that the existing label is difficult to separate from the bottle, the separation integrity is low and the separation efficiency is low are solved;
the invention also aims to provide the environment-friendly daily chemical label capable of being washed, separated and recycled, which is prepared by the preparation method of the environment-friendly daily chemical label capable of being washed, separated and recycled, can fall off through washing, is high in use convenience and good in use effect, can realize quick separation of the label and a bottle, and solves the problems that the existing label for sticking the bottle is difficult to separate from the bottle and is inconvenient to use.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. respectively coating removable adhesive on any surface of the surface material and any surface of the base paper;
B. coating a foaming agent or a thermal expansion agent on the side of the face material coated with the removable adhesive;
C. and compounding the surface of the surface material coated with the foaming agent or the thermal expansion agent with the surface of the base paper coated with the removable adhesive to obtain the environment-friendly daily chemical label which can be washed, separated and recycled.
In step B, the foaming agent is one or a combination of two of azodicarbonamide and azobisisobutyronitrile, and the thermal expansion agent is a thermally expandable microsphere.
In the step B, the coating amount of the foaming agent or the thermal expansion agent is 2 to 3g/m2。
In the step A, the glue coating amount of the movable glue is 20-22 g/m2。
In the step C, the composite pressure of the surface material coated with the foaming agent or the thermal expansion agent and the base paper coated with the removable adhesive is 5-7 kg/cm2。
Further, in the step a, the raw materials of the removable adhesive comprise the following components in parts by mass: 3-5 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 12-15 parts of methyl acrylate, 18-20 parts of ethyl acetate, 48-52 parts of toluene, 0.5-1 part of sodium persulfate and 0.5-1 part of isocyanate crosslinking agent.
Further, step C is followed by step D of coating a UV-curable adhesive on the bottom surface of the straw paper, and attaching the side of the straw paper coated with the UV-curable adhesive to the side of the surface material not coated with the removable adhesive.
Furthermore, the surface material is an OPS heat shrinkable film, the thickness of the surface material is 48-52 μm, the base paper is PET base paper, and the thickness of the base paper is 34-38 μm.
More specifically, the face material is white or transparent in color.
The environment-friendly daily chemical label capable of being washed, separated and recycled is prepared by the preparation method of the environment-friendly daily chemical label capable of being washed, separated and recycled.
Compared with the prior art, the invention has the following beneficial effects:
the preparation method of the environmental-friendly daily chemical label capable of being washed, separated and recovered comprises the steps of coating a removable adhesive on any one surface of a surface material and a piece of base paper, coating a foaming agent or a thermal expansion agent on the surface of the surface material coated with the removable adhesive, compounding the removable adhesive and the foaming agent or the thermal expansion agent, enabling the environmental-friendly daily chemical label capable of being washed, separated and recovered to automatically fall off from a bottle body during soaking, coating the foaming agent or the thermal expansion agent on the surface of the surface material coated with the removable adhesive, enabling the label to automatically foam or automatically expand during soaking, enabling the label to more easily fall off, attaching the environmental-friendly daily chemical label capable of being washed, separated and recovered to a bottle (such as a glass container, a PETG container and a PET bottle), and soaking the label for 20-50 s with water at the temperature of 60-100 ℃ to enable the label to fall off from the bottle body, the preparation method is simple, and the label prepared by coating the removable adhesive and the foaming agent or the thermal expansion agent can fall off through water washing, has high falling speed, good separation effect with the bottle body and good separation integrity, effectively improves the separation efficiency of the label and the bottle, and solves the problems of difficult separation, low separation integrity and low separation efficiency of the existing label and the bottle;
the environment-friendly daily chemical label which can be washed away and recovered and is prepared by the preparation method of the environment-friendly daily chemical label which can be washed away and recovered, can fall off by washing, is high in use convenience and good in use effect, and can be quickly separated from the bottle.
Drawings
FIG. 1 is a schematic diagram of a film layer structure of a water washable release recycled environmentally friendly daily chemical label according to one embodiment of the present invention;
wherein: the surface material comprises a surface material 1, bottom paper 2, a removable adhesive layer 3, a functional layer 4, straw paper 5 and a UV curing adhesive layer 6.
Detailed Description
As shown in fig. 1, a method for preparing an environmental protection daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. respectively coating removable adhesive on any surface of the surface material 1 and any surface of the base paper 2 to form a removable adhesive layer 3;
B. coating a foaming agent or a thermal expansion agent on one side of the plane material 1 coated with the removable adhesive to form a functional layer 4;
C. and (3) compounding the surface of the surface material 1 coated with the foaming agent or the thermal expansion agent with the surface of the base paper 2 coated with the removable adhesive to obtain the environment-friendly daily chemical label which can be washed, separated and recycled.
The environment-friendly daily chemical label capable of being washed away and recovered can automatically fall off from a bottle body when being soaked by coating a foaming agent or a thermal expansion agent on one surface of the surface material 1 and one surface of the base paper 2 coated with the removable adhesive, and the label can automatically foam or expand when being soaked by coating the foaming agent or the thermal expansion agent on one surface of the surface material 1 coated with the removable adhesive, so that the label is easier to fall off, and the label can fall off from the bottle body by soaking the environment-friendly daily chemical label capable of being washed away and recovered in water for 20-50 s after being attached to a bottle (such as a glass container, a PETG container and a PET bottle) by 60-100 ℃ after being soaked in the water, the preparation method is simple, and the removable adhesive and the foaming agent or the thermal expansion agent are coated, the prepared label can fall off through washing, the falling speed is high, the separation effect with the bottle body is good, the separation integrity is good, the separation efficiency of the label and the bottle is effectively improved, and the problems that the existing label is difficult to separate from the bottle, the separation integrity is low and the separation efficiency is low are solved.
Preferably, in the step B, the foaming agent is one or a combination of two of azodicarbonamide and azobisisobutyronitrile, and the thermal expansion agent is a thermally expandable microsphere.
After the environmental-friendly daily chemical label capable of being washed away and recycled is attached to a bottle body, the surface material 1 is coated with the foaming agent or the thermal expansion agent coated on one surface of the movable adhesive, so that the label can be automatically foamed or automatically expanded when being soaked, the thermal expansion agent is a thermal expansion microsphere, the thermal expansion microsphere begins to expand when reaching the softening point of a microsphere shell, and the label is enabled to be more easily separated from the bottle after expansion, so that the label can be more quickly separated from the bottle body, and the separation efficiency of the label is effectively improved.
Preferably, in the step B, the coating amount of the foaming agent or the thermal expansion agent is 2-3 g/m2。
Preferably, in the step B, the foaming agent or the thermal expansion agent is coated in an amount of 2g/m2。
Since the foaming agent or the thermal expansion agent is coated on the side of the face material 1 coated with the removable adhesive, the label can be automatically foamed or automatically expanded when soaked, if the coating amount of the foaming agent or the thermal expansion agent is too small in the step B, the dropping speed of the environmental-friendly daily chemical label which can be washed and separated from the recycling is reduced, and if the coating amount of the foaming agent or the thermal expansion agent is too large, the adhesion between the label and the bottle in the process of being used at ordinary times can be reduced, and the using effect of the environmental-friendly daily chemical label which can be washed and separated from the recycling is affected.
Preferably, in the step A, the glue coating amount of the removable glue is 20-22 g/m2。
Preferably, in the step A, the glue coating amount of the removable glue is 21g/m2。
If the glue coating amount of the removable glue coated in the step a is too small, the environmental-friendly daily chemical label capable of being separated and recycled by washing may deform at an excessively high temperature or an excessively low temperature environment during use, and if the glue coating amount of the removable glue coated in the step a is too large, the adhesion force of the environmental-friendly daily chemical label capable of being separated and recycled by washing on a bottle may be improved, so that the label is difficult to separate from the bottle body, and the separation efficiency of the environmental-friendly daily chemical label capable of being separated and recycled by washing from the bottle is affected.
In the step C, the composite pressure of the foaming agent or thermal expansion agent coated surface of the face material 1 and the removable adhesive coated surface of the base paper 2 is 5 to 7kg/cm2。
Preferably, in the step C, the composite pressure of the foaming agent or thermal expansion agent coated side of the surface material 1 and the removable adhesive coated side of the base paper 2 is 6kg/cm2。
In the step C, the surface of the face material 1 coated with the foaming agent or the thermal expansion agent is compounded with the surface of the base paper 2 coated with the removable adhesive, so that the environment-friendly daily chemical label which can be washed away and recycled is prepared by compounding the face material 1 with the base paper 2, if the compounding pressure during compounding is too large, the environment-friendly daily chemical label which can be washed away and recycled and is obtained by compounding the face material 1 with the base paper 2 is wrinkled, and if the compounding pressure during compounding is too small, air bubbles may occur between the adhering surfaces of the face material 1 and the base paper 2, thereby affecting the use effect of the environment-friendly daily chemical label which can be washed away and recycled.
Further, in the step a, the raw materials of the removable adhesive comprise the following components in parts by mass: 3-5 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 12-15 parts of methyl acrylate, 18-20 parts of ethyl acetate, 48-52 parts of toluene, 0.5-1 part of sodium persulfate and 0.5-1 part of isocyanate crosslinking agent.
Specifically, the preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.2-0.5 part of sodium persulfate in 9-10 parts of ethyl acetate, then adding 3-5 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 12-15 parts of methyl acrylate and 48-52 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding the rest ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) and continuously adding 0.5-1 part of cross-linking agent and the residual sodium persulfate, and reacting for 3 hours at the constant temperature of 80 ℃ to obtain the removable adhesive.
Through preparing can move the glue, all coat in the plane materiel 1 with arbitrary one side of base stock 2 can move the glue for can wash the environmental protection daily use chemical label that breaks away from the recovery and soak 20 ~ 50s at 60 ~ 100 ℃ of water and can follow the body and drop, and the integrality that drops is good, and convenient to use can realize the independent recovery of label and bottle.
Further, the step C is followed by a step D of coating a UV curing adhesive on the bottom surface of the straw paper 5 to form a UV curing adhesive layer 6, and attaching the side of the straw paper 5 coated with the UV curing adhesive to the side of the surface material 1 not coated with the removable adhesive.
Through inciting somebody to action 5 coatings on straw paper the one side of UV curing glue laminate in the surface material 1 is not coated can move the one side of gluing, straw paper 5 can conveniently write the printing to improve the printing effect of label, just straw paper 5 is the environmental protection material, and make full use of waste material resource is favorable to the circulation recycle of waste material, when improving the printing effect of label, guarantees the cost that can wash the environmental protection daily use chemical label that breaks away from the recovery can not be too high.
Furthermore, the surface material 1 is an OPS heat shrinkable film, the thickness of the surface material 1 is 48-52 μm, the base paper 2 is PET base paper, and the thickness of the base paper 2 is 34-38 μm.
Preferably, the surface material 1 has a thickness of 50 μm, and the base paper 2 has a thickness of 36 μm.
The surface material 1 adopts an OPS heat shrinkable film which has good shrinking effect, is convenient for the environmental-friendly daily chemical label which can be separated and recycled by washing to separate from a bottle, ensures the separating effect of the label and the bottle, limits the thickness of the surface material 1, if the thickness of the facestock 1 is too thick, the time for label release may be long, if the thickness of the facestock 1 is too thin, the label is likely to be damaged in the using process, the base paper 2 is made of PET base paper, the PET base paper has good mechanical property and good high-temperature and low-temperature resistance, the using effect of the environment-friendly daily chemical label capable of being washed, separated and recycled is effectively guaranteed, the thickness of the base paper 2 is 34-38 mu m, if the thickness of the base paper 2 is too thin, the base paper may be easily damaged, and the use effect of the washable recyclable environmentally-friendly daily chemical label may be affected.
Preferably, the face stock 1 is white or transparent in color.
The colour of plane materiel 1 is white or transparent to convenient direct the surface of plane materiel 1 is printed, can be used for the paper is write to the surface-mounted one deck of plane materiel 1, has guaranteed can wash when breaking away from the printing effect of the environmental protection daily use chemicals label of retrieving, effectively reduced the cost of manufacture of label.
The environment-friendly daily chemical label capable of being washed, separated and recycled is prepared by the preparation method of the environment-friendly daily chemical label capable of being washed, separated and recycled.
The environment-friendly daily chemical label capable of being washed away and recovered can fall off through washing, is high in use convenience and good in use effect, and can be quickly separated from a bottle.
In order to facilitate an understanding of the present invention, a more complete description of the present invention is provided below. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically a white OPS heat shrinkable film with a thickness of 50 μm) and any one side of a base paper (specifically a PET base paper with a thickness of 36 μm), and the coating amount of the removable adhesive is 21g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. applying a blowing agent, in particular azodicarbonamide, to the face material on the side coated with said removable glue in an amount of 3g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2And obtaining the environment-friendly daily chemical label which can be separated and recycled by washing.
Example 2
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically a white OPS heat shrinkable film with a thickness of 48 μm) and any one side of a base paper (specifically a PET base paper with a thickness of 34 μm), respectively, and the coating amount of the removable adhesive isIs 22g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. applying a blowing agent, in particular azodicarbonamide, to the face material on the side coated with said removable glue in an amount of 3g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2And obtaining the environment-friendly daily chemical label which can be separated and recycled by washing.
Example 3
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. coating a removable adhesive on any one side of a surface material (specifically white OPS heat shrinkable film with thickness of 52 μm) and any one side of a base paper (specifically PET base paper with thickness of 38 μm), wherein the coating amount of the removable adhesive is 20g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. applying a blowing agent, in particular azodicarbonamide, to the face material on the side coated with said removable glue in an amount of 2g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2And obtaining the environment-friendly daily chemical label which can be separated and recycled by washing.
Example 4
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically a white OPS heat shrinkable film with a thickness of 50 μm) and any one side of a base paper (specifically a PET base paper with a thickness of 36 μm), and the coating amount of the removable adhesive is 21g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. coating the face material with a thermal expansion agent (specifically thermal expansion microsphere) at a coating amount of 3g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2And obtaining the environment-friendly daily chemical label which can be separated and recycled by washing.
Example 5
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically a white OPS heat shrinkable film with the thickness of 48 μm) and any one side of a base paper (specifically a PET base paper with the thickness of 34 μm), and the coating amount of the removable adhesive is 22g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. coating the face material with a thermal expansion agent (specifically thermal expansion microsphere) at a coating amount of 3g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2And obtaining the environment-friendly daily chemical label which can be separated and recycled by washing.
Example 6
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically white OPS heat shrinkable film with the thickness of 52 μm) and any one side of a base paper (specifically PET base paper with the thickness of 38 μm), and the coating amount of the removable adhesive is 20g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. coating the face material with a thermal expansion agent (specifically thermal expansion microsphere) at a coating amount of 2g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2And obtaining the environment-friendly daily chemical label which can be separated and recycled by washing.
Example 7
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically white OPS heat shrinkable film with the thickness of 52 μm) and any one side of a base paper (specifically PET base paper with the thickness of 38 μm), and the coating amount of the removable adhesive is 20g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. applying a blowing agent, in particular azodicarbonamide, to the face of said face material coated with said removable adhesive, in an amount such thatIs 2g/m2；
C. Compounding the foaming agent or thermal expansion agent coated side of the surface material with the removable adhesive coated side of the base paper, wherein the compounding pressure is 6kg/cm2；
D. Coating UV curing glue on the bottom surface of straw paper, and coating the straw paper with one side of UV curing glue is laminated on the surface material not coated the one side of can moving glue, obtains a environmental protection daily use chemical label that can wash and break away from the recovery.
Comparative example 1
A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled comprises the following steps:
A. a removable adhesive is coated on any one side of a surface material (specifically white OPS heat shrinkable film with the thickness of 52 μm) and any one side of a base paper (specifically PET base paper with the thickness of 38 μm), and the coating amount of the removable adhesive is 20g/m2；
The preparation method of the removable adhesive comprises the following steps:
(1) dissolving 0.3 part of sodium persulfate in 10 parts of ethyl acetate, adding 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, and uniformly stirring and mixing to obtain a mixed solution;
(2) adding 10 parts of ethyl acetate into a reactor, heating to 80 ℃, dropwise adding the mixed solution prepared in the step (1) after stable reflux, and reacting for 2 hours in a heat preservation manner;
(3) continuously adding 0.8 part of cross-linking agent and 0.3 part of sodium persulfate, and reacting at the constant temperature of 80 ℃ for 3 hours to obtain the removable adhesive;
B. compounding the side of the surface material coated with the removable adhesive with the side of the base paper coated with the removable adhesive, wherein the compounding pressure is 6kg/cm2And obtaining the label.
Comparative example 2
In comparison with example 3, in step B, the amount of the blowing agent applied was 1g/m2The remaining formulation and preparation were identical to example 3, giving a label.
Comparative example 3
Compared with the example 3, in the step A, the coating amount of the removable adhesive is 18g/m2The remaining formulation and preparation were identical to example 3, giving a label.
The labels prepared in examples 1 to 7 and comparative examples 1 to 3 were attached to the same PET bottle, and soaked in water at 60 ℃ and 80 ℃ respectively, and the falling time of the label and the separation effect of the label from the bottle (whether the label and the bottle are completely separated or not) were measured, and the test results are shown in the following table:
TABLE 1 Performance test results for examples 1-7 and comparative examples 1-3
Figure BDA0003131972220000141
Figure BDA0003131972220000151
According to the test results, the labels prepared in the embodiments 1 to 7 can be completely separated from the bottles within 30-48 s when soaked at 60 ℃ and 80 ℃, can be easily and completely separated from the bottle bodies, are high in separation speed and good in separation effect with the bottles, and can be quickly separated from the bottles, so that the separation and recovery effect of the labels and the bottles is improved, the labels and the bottles are conveniently recovered and reused, and the environment-friendly effect is good;
comparative example 1 since the foaming agent was not coated, the label could not be completely separated from the bottle when the label was soaked at 60 ℃, and the label still partially adhered to the bottle, affecting the recycling effect of the label and the bottle; comparative example 2 since the amount of the foaming agent applied was too small, the speed of label detachment from the bottle was affected, and although the label could still be completely separated from the bottle, the label detachment speed was slower at 60 ℃ and 80 ℃ than in example 3; comparative example 3 since the coating amount of the removable adhesive was too much, the adhesion of the label on the bottle was increased, and the label was difficult to detach from the bottle body, affecting the detachment efficiency of the label from the bottle.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A preparation method of an environment-friendly daily chemical label capable of being washed, separated and recycled is characterized by comprising the following steps:
A. respectively coating removable adhesive on any surface of the surface material and any surface of the base paper;
B. coating a foaming agent or a thermal expansion agent on the side of the face material coated with the removable adhesive;
C. and compounding the surface of the surface material coated with the foaming agent or the thermal expansion agent with the surface of the base paper coated with the removable adhesive to obtain the environment-friendly daily chemical label which can be washed, separated and recycled.
2. The method for preparing the environmental-friendly daily chemical label capable of being separated and recycled by washing with water according to claim 1, wherein in the step B, the foaming agent is one or a combination of two of azodicarbonamide and azodiisobutyronitrile, and the thermal expansion agent is thermal expansion microspheres.
3. The method for preparing the environmental-friendly daily chemical label capable of being separated and recycled by washing with water according to claim 1, wherein in the step B, the coating amount of the foaming agent or the thermal expansion agent is 2-3 g/m2。
4. The method for preparing the environmental-friendly daily chemical label capable of being washed away and recycled according to claim 1, wherein in the step A, the glue coating amount of the removable glue is 20-22 g/m2。
5. The water washable breakaway recovery of claim 1The preparation method of the environment-friendly daily chemical label is characterized in that in the step C, the composite pressure of the surface material coated with the foaming agent or the thermal expansion agent and the surface of the base paper coated with the removable adhesive is 5-7 kg/cm2。
6. The method for preparing the environmental-friendly daily chemical label capable of being washed away and recycled according to claim 1, wherein in the step A, the raw materials of the removable adhesive comprise the following components in parts by mass: 3-5 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 12-15 parts of methyl acrylate, 18-20 parts of ethyl acetate, 48-52 parts of toluene, 0.5-1 part of sodium persulfate and 0.5-1 part of isocyanate crosslinking agent.
7. The method for preparing the environmental-friendly daily chemical label capable of being washed away and recycled according to claim 1, wherein the step C is followed by a step D of coating UV curing glue on the bottom surface of straw paper, and attaching the side of the straw paper coated with the UV curing glue to the side of the surface material which is not coated with the removable glue.
8. The method for preparing the environmental-friendly daily chemical label capable of being washed, separated and recycled by the water according to claim 1, wherein the surface material is an OPS heat shrinkable film, the thickness of the surface material is 48-52 μm, the base paper is PET base paper, and the thickness of the base paper is 34-38 μm.
9. The method of making an environmentally friendly consumer chemical label that is washable, recyclable, according to claim 1, wherein the facestock is white or transparent in color.
10. An environment-friendly daily chemical label capable of being separated and recycled by washing, which is prepared by the preparation method of the environment-friendly daily chemical label capable of being separated and recycled by washing according to any one of claims 1 to 9.
CN202110707612.4A 2021-06-24 2021-06-24 Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof Pending CN113402996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110707612.4A CN113402996A (en) 2021-06-24 2021-06-24 Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110707612.4A CN113402996A (en) 2021-06-24 2021-06-24 Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof

Publications (1)

Publication Number Publication Date
CN113402996A true CN113402996A (en) 2021-09-17

Family

ID=77683043

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110707612.4A Pending CN113402996A (en) 2021-06-24 2021-06-24 Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof

Country Status (1)

Country Link
CN (1) CN113402996A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06259017A (en) * 1993-03-05 1994-09-16 Toppan Printing Co Ltd Tacky adhesive label
CN106336822A (en) * 2016-08-22 2017-01-18 广州市金万正印刷材料有限公司 Water-washing-removable pressure-sensitive adhesive and preparation method and label
TWM598501U (en) * 2020-03-11 2020-07-11 四維企業股份有限公司 A heat-removable label(1)

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06259017A (en) * 1993-03-05 1994-09-16 Toppan Printing Co Ltd Tacky adhesive label
CN106336822A (en) * 2016-08-22 2017-01-18 广州市金万正印刷材料有限公司 Water-washing-removable pressure-sensitive adhesive and preparation method and label
TWM598501U (en) * 2020-03-11 2020-07-11 四維企業股份有限公司 A heat-removable label(1)

Similar Documents

Publication Publication Date Title
AU2020200013B2 (en) Adhesive acrylate-olefin copolymers, methods for producing same and compositions utilizing same
CN104004476B (en) Adhesive for electrochemical aluminium thermoprinting and preparation method thereof and anodized aluminium
CN105073933B (en) Double-faced adhesive tape
TWI739833B (en) Adhesive sheet and manufacturing method of adhered volume layer
CN106336822B (en) A kind of washable removal pressure-sensitive adhesive and preparation method and label
EP1711568A1 (en) Labelling with polymeric labels having an activated hydrophilic adhesive layer
CN102286262A (en) Method for preparing polyurethane hot melting transfer print glue
CN108136725B (en) Adhesive for label, label and label laminate
CN109575848A (en) A kind of ultraviolet light solidifies solvent-free medical pressure sensitive adhesive and its preparation process
CN113402996A (en) Preparation method of environment-friendly daily chemical label capable of being washed, separated and recycled and product thereof
CN110835503B (en) Foaming pressure-sensitive adhesive tape and preparation method thereof
CN108656695B (en) Aluminum-plated paper for aluminum crystal label and preparation method thereof
CN105315933B (en) A kind of antistripping instant drying adhesive and preparation method thereof
CN106471078B (en) wash-off label, combination of wash-off label and article
JP2006335795A (en) Adhesive film and adhesive label using the same
CN105419655B (en) A kind of holography electrochemical aluminium thermoprinting glue and preparation method thereof
CN109897595A (en) Contact adhesive of heat-peelable and preparation method thereof, adhesive tape
CN110628366A (en) High-viscosity pressure-sensitive adhesive, preparation method thereof and adhesive tape
CN103764779A (en) Pressure-sensitive adhesive sheet
JP2003206458A (en) Adhesive sheet
CN114097014A (en) Density adjustable label
CN210481263U (en) Recyclable hot water viscosity reducing adhesive tape
CN213475866U (en) Hot-melt adhesive label tape
CN205011692U (en) Graphite fin bonds and strengthens using sticky tape
CN113263850B (en) Latex ink digital printing film material for improving washing fading phenomenon and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210917