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CN112251067B - Printable and writable mold release agent, film material and preparation method thereof - Google Patents

Printable and writable mold release agent, film material and preparation method thereof Download PDF

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Publication number
CN112251067B
CN112251067B CN202011085483.1A CN202011085483A CN112251067B CN 112251067 B CN112251067 B CN 112251067B CN 202011085483 A CN202011085483 A CN 202011085483A CN 112251067 B CN112251067 B CN 112251067B
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printable
release agent
coating
writable
fluorine
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CN112251067A (en
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匡燕
魏新浩
刘东明
麦启波
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Jiangsu Huangguan New Material Technology Co ltd
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Jiangsu Huangguan New Material Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/20Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a printable and writable release agent, a film material and a preparation method thereof, wherein the printable and writable release agent comprises a non-silicon release agent and an auxiliary agent added into the non-silicon release agent, the addition amount of the auxiliary agent is 5-10wt% of the non-silicon release agent, and the auxiliary agent comprises 35-45wt% of hydroxyl-containing amphiphilic surfactant, 40-50wt% of amino-containing amphiphilic surfactant, 10-15wt% of fluorine-containing prepolymer, 0.5-0.8wt% of 2, 6-di-tert-butyl-4-methylphenol and 0.3-0.5wt% of 2-amino-3-methylphenol. The printable and writable release agent simultaneously has the functions of printing, printing and water writing, and simultaneously effectively solves the problem of adhesion of oily and water-based ink on the release layer.

Description

Printable and writable mold release agent, film material and preparation method thereof
Technical Field
The invention relates to the technical field of release materials, in particular to a printable and writable release agent, a printable and writable film material prepared from the release agent and a preparation method of the film material.
Background
The release agent, also called as antisticking agent and separant, is one of the key materials for producing pressure-sensitive adhesive tape and adhesive sticker products, and the performance of the release agent directly influences the quality of the pressure-sensitive adhesive tape and the adhesive sticker products. The parting agent is classified according to main components and can be divided into the following components: organosilicon release agent, non-silicon release agent and fluorine release agent.
At present, the release film generally only has the function of isolating and protecting an adhesive layer and does not have other performances, wherein only the non-silicon release agent coating has the pencil writing function, but does not have the functions of printing, printing and writing with a fountain pen.
Disclosure of Invention
The invention aims to provide a mold release agent which has the functions of printing, printing and writing with a fountain pen.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a printable and writable release agent, which comprises a non-silicon release agent and an auxiliary agent added into the non-silicon release agent, wherein the addition amount of the auxiliary agent is 5-10wt% of the non-silicon release agent, and the auxiliary agent comprises 35-45wt% of hydroxyl-containing amphiphilic surfactant, 40-50wt% of amino-containing amphiphilic surfactant, 10-15wt% of fluorine-containing prepolymer, 0.5-0.8wt% of 2, 6-di-tert-butyl-4-methylphenol and 0.3-0.5wt% of 2-amino-3-methylphenol.
Further, the non-silicon release agent is poly (vinyl N-octadecyl carbamate).
Further, the hydroxyl group-containing amphiphilic surfactant is glycidyl acrylate.
Further, the amino group-containing amphiphilic surfactant is sodium dodecylaminopropionate.
Further, the fluorine-containing prepolymer is perfluorobutyl acrylate fluorine-containing prepolymer and perfluorooctyl acrylate fluorine-containing prepolymer.
The invention provides a printable and writable film material, which comprises a base material and a release layer coated on the base material, wherein the release layer is coated by the printable and writable release agent.
In the present invention, the substrate may be one well known in the art, including but not limited to PET, BOPP, PE, cellulose acetate, coated paper, glassine paper. Further, the gram weight of the base material is 3-5g/cm2
The invention also provides a preparation method of the printable writable film material, which comprises the following steps:
dissolving a non-silicon release agent in an organic solvent, keeping the temperature at 50-60 ℃, adding an auxiliary agent to obtain a coating liquid, and controlling the solid content of the coating liquid to be 0.5-5%;
coating the prepared coating liquid on a base material in a micro-concave coating mode, and keeping the temperature at 50-60 ℃ during coating; and curing for 2 days at 50 ℃ to obtain the printable film material.
Further, the organic solvent is a mixed solvent composed of 80% of toluene and 20% of ethyl acetate.
Further, the coating amount is 0.5 to 1g/cm2
The invention has the beneficial effects that:
1. the non-silicon release agent poly (N-octadecyl vinyl carbamate) is a release agent which can play roles in isolation (oil and water) and adhesion prevention, the polarity of alkyl formed by 18C is low, and H atoms are easily lost from the alkyl. When oil-based ink printing, and writing with a fountain pen are performed, since poly (N-octadecyl vinyl carbamate) having low polarity cannot adhere well to polar ink, oil-based ink printing, and writing with a fountain pen cannot be performed. In the invention, polar groups-OH and-NH are introduced into poly (N-octadecyl carbamic acid vinyl ester)2The polarity of the coating is improved. According to the principle of similarity and intermiscibility, the low-polarity and low-polarity links are good, and the high-polarity and high-polarity links are good, so that good adhesion conditions are provided for the adhesion of subsequent water-based ink and oil-based ink. Secondly, the fluorine-containing prepolymer is added into the poly (N-octadecyl vinyl carbamate), so that the surface tension of the release agent is reduced, and the release agent can be well spread on the film material. Finally, 2, 6-di-tert-butyl-4-methylphenol and 2-amino-3-methylphenol are added into poly (N-octadecyl carbamate), and the properties of the poly (N-octadecyl carbamate) are similar to those of a polar solvent, so that the anchoring property between the coating and the membrane material can be improved.
2. The release film prepared from the printable release agent has the functions of printing, printing and water writing, and effectively solves the problem of adhesion of oily and water-based ink on the release layer.
Drawings
FIG. 1 is a schematic cross-sectional view of a printable writable film of the present invention;
FIG. 2 is a pictorial view of a printable film of the present invention;
wherein: 1. a substrate; 2. and (4) release coating.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
The embodiment provides a printable film material, and a preparation method thereof comprises the following steps:
1. preparing a coating liquid: dissolving a non-silicon release agent poly (N-octadecyl vinyl carbamate) in a mixed solvent consisting of 80% of toluene and 20% of ethyl acetate, heating to 50-60 ℃, and preserving heat; then 5wt% of auxiliary agent is added, wherein the auxiliary agent comprises 35% of glycidyl acrylate, 50% of sodium dodecyl aminopropionate, 14% of fluorine-containing prepolymer perfluorobutyl ethyl acrylate, 0.7% of 2, 6-di-tert-butyl-4-methylphenol and 0.3% of 2-amino-3-methylphenol. The components are uniformly mixed to obtain a coating liquid, and the solid content of the coating liquid is adjusted to be 0.5%.
2. Coating: coating the prepared coating liquid on a PET substrate by adopting a micro-concave coating process, wherein the coating temperature is controlled to be 50-60 ℃, and the coating weight is 0.08g/cm2(ii) a After coating, the film is sent into a heat preservation chamber with the temperature of 50 ℃ for curing for 2d, and the printable film material with the structure as shown in the attached figure 1 is obtained.
Example 2
The embodiment provides a printable film material, and a preparation method thereof comprises the following steps:
1. preparing a coating liquid: dissolving a non-silicon release agent poly (N-octadecyl vinyl carbamate) in a mixed solvent consisting of 80% of toluene and 20% of ethyl acetate, heating to 50-60 ℃, and preserving heat; then 5% of auxiliary agent is added, wherein the auxiliary agent comprises 35% of glycidyl acrylate, 50% of sodium dodecyl aminopropionate, 14% of fluorine-containing prepolymer perfluorobutyl ethyl acrylate, 0.7% of 2, 6-di-tert-butyl-4-methylphenol and 0.3% of 2-amino-3-methylphenol, the coating liquid is obtained after uniform mixing, and the solid content of the coating liquid is adjusted to be 0.7%.
2. Coating: coating the prepared coating liquid on a PET substrate by adopting a dimple coating process, wherein the coating temperature is controlled to be 50-60 ℃, and the coating weight is 0.1g/cm2(ii) a After coating, the mixture is sent into a heat preservation chamber with the temperature of 50 ℃ for curing for 2d, and the printable film material can be obtained.
Example 3
The embodiment provides a printable film material, and a preparation method thereof comprises the following steps:
1. preparing a coating liquid: dissolving a non-silicon release agent poly (N-octadecyl vinyl carbamate) in a mixed solvent consisting of 80% of toluene and 20% of ethyl acetate, heating to 50-60 ℃, and preserving heat; then 10% of auxiliary agent is added, wherein the auxiliary agent comprises 40% of glycidyl acrylate, 45% of sodium dodecyl aminopropionate, 14% of fluorine-containing prepolymer perfluorooctyl ethyl acrylate, 0.7% of 2, 6-di-tert-butyl-4-methylphenol and 0.3% of 2-amino-3-methylphenol, the coating liquid is obtained after uniform mixing, and the solid content of the coating liquid is adjusted to be 0.5%.
2. Coating: coating the prepared coating liquid on a PET substrate by adopting a micro-concave coating process, wherein the coating temperature is controlled to be 50-60 ℃, and the coating weight is 0.08g/cm2(ii) a After coating, the mixture is sent into a heat preservation chamber with the temperature of 50 ℃ for curing for 2d, and the printable film material can be obtained.
Example 4
The embodiment provides a printable film material, and a preparation method thereof comprises the following steps:
1. preparing a coating liquid: dissolving a non-silicon release agent poly (N-octadecyl vinyl carbamate) in a mixed solvent consisting of 80% of toluene and 20% of ethyl acetate, heating to 50-60 ℃, and preserving heat; then 10% of auxiliary agent is added, wherein the auxiliary agent comprises 40% of glycidyl acrylate, 45% of sodium dodecyl aminopropionate, 14% of fluorine-containing prepolymer perfluorooctyl ethyl acrylate, 0.7% of 2, 6-di-tert-butyl-4-methylphenol and 0.3% of 2-amino-3-methylphenol, the coating liquid is obtained after uniform mixing, and the solid content of the coating liquid is adjusted to be 0.7%.
2. Coating: coating the prepared coating liquid on a PET substrate by adopting a dimple coating process, wherein the coating temperature is controlled to be 50-60 ℃, and the coating weight is 0.1g/cm2(ii) a After coating, the mixture is sent into a heat preservation chamber with the temperature of 50 ℃ for curing for 2d, and the printable film material can be obtained.
And (3) performance testing:
printable writable films prepared in examples 1-4 were individually tested for peel force, residue and dyne values and the results are shown in the table below.
Table 1 results of performance testing of printable writable films of examples 1-4
Figure BDA0002720245390000051
As can be seen from table 1, the release coating on the film material of the examples can release, and the high dyne value of the tesa7475 acrylic adhesive tape indicates that the polarity of the coating is high, so that the printing function is good.
Figure 2 shows the result of writing with the printable writable film of the present invention. As can be seen from the figure, the film material can be used for writing on fountain pens, pencils and ball-point pens, has clear handwriting and meets the requirement of daily use.
In conclusion, the printable release agent provided by the invention is prepared by introducing a certain proportion of-OH or-NH into the coating2The coating can not only have the function of releasing after being cured, but also be suitable for water-based and oil-based ink, and have the functions of printing, printing and writing.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitutions or changes made by the person skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the invention is subject to the claims.

Claims (6)

1. The release agent capable of being printed and written is characterized by comprising a non-silicon release agent and an auxiliary agent added into the non-silicon release agent, wherein the addition amount of the auxiliary agent is 5-10wt% of the non-silicon release agent, the auxiliary agent comprises 35-45wt% of hydroxyl-containing amphiphilic surfactant, 40-50wt% of amino-containing amphiphilic surfactant, 10-15wt% of fluorine-containing prepolymer, 0.5-0.8wt% of 2, 6-di-tert-butyl-4-methylphenol and 0.3-0.5wt% of 2-amino-3-methylphenol; the non-silicon release agent is poly (N-octadecyl vinyl carbamate); the hydroxyl-containing amphiphilic surfactant is glycidyl acrylate; the amino-containing amphiphilic surfactant is sodium dodecyl aminopropionate; the fluorine-containing prepolymer is perfluorobutyl acrylate fluorine-containing prepolymer or perfluorooctyl acrylate fluorine-containing prepolymer.
2. An printable and writable film, comprising a substrate and a release layer coated on the substrate, wherein the release layer is coated by the printable and writable release agent of claim 1.
3. The printable writable film of claim 2, wherein the substrate comprises PET, BOPP, PE, cellulose acetate, coated paper, glassine paper.
4. A method of making a printable writable film as claimed in claim 2 or 3, comprising the steps of:
dissolving a non-silicon release agent in an organic solvent, keeping the temperature at 50-60 ℃, and adding an auxiliary agent to obtain a coating liquid, wherein the solid content of the coating liquid is controlled to be 0.5-5%;
coating the prepared coating liquid on a base material in a micro-concave coating mode, and keeping the temperature at 50-60 ℃ during coating; and curing for 2 days at 50 ℃ to obtain the printable film material.
5. The method of making a printable writable film according to claim 4, wherein the organic solvent is a mixed solvent of 80% toluene and 20% ethyl acetate.
6. The method of making a printable writable film of claim 4, wherein the coating weight is 0.5-1g/cm2
CN202011085483.1A 2020-10-12 2020-10-12 Printable and writable mold release agent, film material and preparation method thereof Active CN112251067B (en)

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JP2555599B2 (en) * 1987-05-14 1996-11-20 凸版印刷株式会社 Thermal transfer recording material
US6919405B2 (en) * 2002-12-31 2005-07-19 3M Innovative Properties Company Release compositions and articles made therefrom
CN106833061A (en) * 2016-12-23 2017-06-13 张家港康得新光电材料有限公司 Mould release and mould release membrance

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