CN114481684A - Solvent-free silicon oil double-sided release paper and preparation process thereof - Google Patents

Solvent-free silicon oil double-sided release paper and preparation process thereof Download PDF

Info

Publication number
CN114481684A
CN114481684A CN202210079304.6A CN202210079304A CN114481684A CN 114481684 A CN114481684 A CN 114481684A CN 202210079304 A CN202210079304 A CN 202210079304A CN 114481684 A CN114481684 A CN 114481684A
Authority
CN
China
Prior art keywords
paper
solvent
silicone oil
layer
release
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
CN202210079304.6A
Other languages
Chinese (zh)
Inventor
徐耀琪
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.)
Jiangyin Xilian Composite Material Co ltd
Original Assignee
Jiangyin Xilian Composite Material 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 Jiangyin Xilian Composite Material Co ltd filed Critical Jiangyin Xilian Composite Material Co ltd
Priority to CN202210079304.6A priority Critical patent/CN114481684A/en
Publication of CN114481684A publication Critical patent/CN114481684A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • 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
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/35—Polyalkenes, e.g. polystyrene
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a solvent-free silicon oil double-sided release paper and a preparation process thereof; the invention solves the problem that 5 to 7 times of solvent is required to be added to dilute the mixture to lower viscosity when the mixture is coated and used by arranging the release agent layer, the laminating layer and the raw paper layer, the solvent amount used by the release agent is extremely large, the solvent release agent has general performance and higher release force, can not be suitable for products with light release force and ultra-light release force, the raw material price of the silicone oil is expensive, the production cost is increased, and the silicone oil is mostly diluted by adopting an organic solvent, the organic solvents are volatile and difficult to be completely recycled, the production process has toxicity and is not beneficial to environmental protection, the solvent-free silicone oil double-sided release paper and the preparation process thereof have the advantages that no solvent is required to be added during use, the paper can be directly coated for use, but also suitable for products with light release force and ultra-light release force and has the advantages of small silicon oil consumption and environmental protection.

Description

Solvent-free silicon oil double-sided release paper and preparation process thereof
Technical Field
The invention relates to the technical field of release paper production, in particular to solvent-free silicon oil double-sided release paper and a preparation process thereof.
Background
The release paper is mainly pasted on the gluing surface of the adhesive tape and is used for protecting the adhesive layer on the surface of the adhesive tape. The release paper is prepared by the following preparation process consisting of base paper, an isolation layer and an anti-sticking layer, wherein the whole surface of the base paper is coated with a layer of isolation agent (the adopted isolation agent mainly comprises polyethylene), and then the surface of the coated layer is coated with a layer of anti-sticking agent (the adopted anti-sticking agent mainly comprises silicone oil) to obtain the release paper, and the release silicone oil comprises the following components: solvent-type release silicone oil, solvent-free silicone oil and emulsion-type release silicone oil. The solvent-type release silicone oil contains a solvent, and a large amount of solvent is required to be added in the use process, so that the solvent-type release silicone oil has great harm to the environment and personnel and is gradually eliminated; the emulsion type release silicone oil is small in application range at present and poor in adaptability to paper, especially glassine paper base materials; the solvent-free release silicone oil has wide adaptability, particularly has good adaptability to various paper substrates, is nontoxic and pollution-free, does not need a solvent in the using process, has no pollution to the environment and no toxic action on personnel, becomes the most main direction of the market application of the release silicone oil, and can be divided into the following types according to the stripping force of the solvent-free release silicone oil: ultra light peel force (1-3 grams), light peel force (8-13 grams), medium heavy peel force (15-30 grams), heavy peel force (35-60 grams), ultra heavy peel force (> 70 grams). At present, release paper products are more and more diversified, release paper with different peeling forces is required, the whole industry gradually enters subdivision, the requirement on release silicone oil is more and more delicate, furthermore, the conventional solvent-free silicone oil release paper needs to be coated with a chemical raw material base coat in the processing process, the base paper has high gram weight and low smoothness, a solvent-free silicone oil layer can be coated on the base paper after at least one overpressure is needed, and the processing process is more complex and the production efficiency is low due to the extra overpressure process.
At present, the release paper generally uses an organic silicon release agent containing a solvent type, the content of the solvent is up to 70%, and 5 to 7 times of the solvent needs to be added to dilute the release agent to a lower viscosity when the release paper is coated and used, the solvent used by the release agent is extremely large, the environment is seriously polluted, the performance of the solvent release agent is general, the release force is higher, the release paper can not be suitable for products requiring light release force and ultra-light release force, in the production process of the existing release paper, because a layer of silicone oil with an anti-sticking effect is coated on the whole surface of base paper, the price of raw materials of the silicone oil is high, the production cost is increased, most of the silicone oil is diluted by the organic solvent, the organic solvents are volatile and difficult to be completely recycled, the production process is toxic, and the environment protection is not facilitated.
Disclosure of Invention
The invention aims to provide solvent-free silicon oil double-sided release paper and a preparation process thereof, which have the advantages of no need of adding any solvent during use, direct coating use, suitability for products with light release force and ultra-light release force, small silicon oil consumption and environmental protection, and the problem that 5 to 7 times of solvent needs to be added to dilute the release paper to lower viscosity during coating use, the release agent uses a great amount of solvent and causes serious pollution to the environment, the solvent release agent has general performance and higher release force and cannot be suitable for products with light release force and ultra-light release force Difficult to be completely recycled, and the production process has toxicity and is not beneficial to environmental protection.
In order to achieve the purpose, the invention provides the following technical scheme: the solvent-free silicone oil double-sided release paper comprises the following components in parts by weight:
solvent-free silicone oil 0.3-1.5g/m225-35g/m softwood pulp233-40 hardwood pulp g/m20.6-0.9g/m of foaming agent211-14g/m of active agent2High molecular polymer 11-15g/m2Polyethylene oxide 7-11g/m212-15g/m of lubricant2。
Preferably, the high molecular polymer comprises, by weight, 4-6 parts of polyurethane, 7-9 parts of polylactic acid, 11-15 parts of polyvinyl alcohol, 2-5 parts of polystyrene, wherein the softwood pulp is one or a mixture of more than two of Chinese red pine fiber wood pulp, larch fiber wood pulp, red pine fiber wood pulp and spruce fiber wood pulp, and the foaming agent is prepared from, by weight, 1-2 parts of magnesium carbonate, 3-5 parts of petroleum ether and 2-4 parts of azodicarbonamide; the active agent is stearic acid; the lubricant is chlorinated paraffin.
A preparation process of solvent-free silicone oil double-sided release paper comprises the following steps:
step 1: uniformly mixing polyethylene and modified polyolefin according to the mass ratio of 1: 01-05, heating and melting, laminating to the corona-pretreated raw paper layer, wherein the laminating amount is 5-20 g/cooling to obtain laminated paper, and forming a first laminating layer;
step 2: coating a silicone oil layer, namely coating silicone oil on the surface of the laminating paper, and drying after coating to form a release agent layer;
and step 3: rolling the laminated paper by a roller with concave-convex embossing, and then presenting concave-convex embossing grooves on the surface;
and 4, step 4: uniformly coating silicone oil on the surface of the laminating paper by adopting a coating machine, then drying the laminating paper with three-stage temperature sections of 100-200 ℃, and cooling;
and 5: and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
Preferably, in the step 1, the raw paper layer is made of glassine paper, corona treatment is performed on the upper surface and the lower surface of the raw paper layer, and then double-sided lamination is performed. Preferably selecting PE plastic particles, having good melt index, having good adhesive force with the base paper, quickly laminating and controlling the coating amount, and the release paper after laminating has better moisture-proof effect, wherein the laminating layer is the PE plastic particles, and a corona processor is adopted to process the surface of the base paper layer for 180s at the speed of 370-525W.
Preferably, in step 2, the release agent layer is solvent-free silicone oil, and the coating amount is as follows: 0.3-1.5g/m2The release layer is made of solvent-free silicone oil, and can be directly coated for use without adding any solvent during use, and is suitable for products with light release force and ultra-light release force.
Preferably, in the step 4, the temperature range of the head end temperature section of the third-stage temperature section is 100-150 ℃, the temperature range of the middle temperature section is 150-200 ℃, and the temperature range of the tail end temperature section is 150-100 ℃.
Preferably, the mixture of the polyethylene and the modified polyolefin is heated and bridged at the temperature of 150-250 ℃, then the temperature is increased to 280-400 ℃ for melting, then the mixture is extruded by applying the pressure of 10-20 Mpa, and the temperature is kept between 300-400 ℃ during film spraying.
Preferably, the paper feeding speed of the conveying belt when the film laminating paper is rolled by a roller with concave-convex embossing is 50-100 m/min.
Preferably, the silicone oil is uniformly coated on the convex surface of the laminating paper in a dry silicon coating amount of 0.5-10 g/square meter.
Preferably, when the coated film paper is dried, the coated film paper is conveyed into a drying box in a conveying belt mode, and the paper feeding speed of the conveying belt is 50-100 m/min.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the problems that 5 to 7 times of solvent is required to be added to dilute the solvent to lower viscosity when the solvent is coated and used, the used solvent amount of the release agent is extremely large, the environment is seriously polluted, the performance of the solvent release agent is general, the release force is higher, and the solvent release agent cannot be suitable for products requiring light release force and ultra-light release force, in the production process of the existing release paper, because a layer of silicone oil with anti-sticking effect is coated on the whole surface of base paper, the raw material price of the silicone oil is expensive, the production cost is increased, most of the silicone oil is diluted by organic solvent, the organic solvent is easy to volatilize and difficult to completely recycle, the production process has toxicity, and the environment protection is not facilitated, the solvent-free silicone oil double-sided release paper and the preparation process thereof have the advantages that no solvent is required to be added when the paper is used, can be directly coated for use, is suitable for products with light release force and ultra-light release force, and has the advantages of small consumption of silicone oil and environmental protection.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
Detailed Description
The present invention will now be described in more detail by way of examples, which are given by way of illustration only and are not intended to limit the scope of the present invention in any way.
The invention provides a technical scheme that: the solvent-free silicone oil double-sided release paper comprises the following components in parts by weight:
solvent-free silicone oil 0.3-1.5g/m225-35g/m softwood pulp233-40 broad leafWood pulp g/m20.6-0.9g/m of foaming agent211-14g/m of active agent2High molecular polymer 11-15g/m2Polyethylene oxide 7-11g/m212-15g/m of lubricant2。
A preparation process of solvent-free silicone oil double-sided release paper comprises the following steps:
step 1: uniformly mixing polyethylene and modified polyolefin according to the mass ratio of 1: 01-05, heating and melting, laminating to the corona-pretreated raw paper layer, wherein the laminating amount is 5-20 g/cooling to obtain laminated paper, and forming a first laminating layer;
step 2: coating a silicone oil layer, namely coating silicone oil on the surface of the laminating paper, and drying after coating to form a release agent layer;
and step 3: after the laminating paper is rolled by a roller with concave-convex embossing, concave-convex embossing grooves are formed on the surface of the laminating paper;
and 4, step 4: uniformly coating silicone oil on the surface of the laminating paper by adopting a coating machine, then drying the laminating paper with three-stage temperature sections of 100-200 ℃, and cooling;
and 5: and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
The first embodiment is as follows:
uniformly mixing polyethylene and modified polyolefin according to the mass ratio of 1: 01-05, heating and melting, laminating to the corona-pretreated raw paper layer, wherein the laminating amount is 5-20 g/cooling to obtain laminated paper, and forming a first laminating layer; coating a silicone oil layer, namely coating silicone oil on the surface of the laminating paper, and drying after coating to form a release agent layer; rolling the laminated paper by a roller with concave-convex embossing, and then presenting concave-convex embossing grooves on the surface; uniformly coating the silicone oil on the surface of the laminating paper by adopting a coating machine, then drying the laminating paper with the laminating paper at a three-stage temperature section of 100-200 ℃, and cooling; and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
Example two:
polyethylene and modified polyolefin are mixed according to the mass ratioUniformly mixing the raw paper layer and the base paper layer in a ratio of 1: 01-05, heating and melting, laminating the raw paper layer and the base paper layer after corona pretreatment, wherein the laminating amount is 5-20 g/cooling to obtain laminated paper, and forming a first laminating layer; the high molecular polymer comprises, by weight, 4-6 parts of polyurethane, 7-9 parts of polylactic acid, 11-15 parts of polystyrene of polyvinyl alcohol 2-5 parts, wherein softwood pulp is one or a mixture of more than two of Chinese red pine fiber wood pulp, larch fiber wood pulp, Korean pine fiber wood pulp and spruce fiber wood pulp, and the foaming agent is prepared from, by weight, 1-2 parts of magnesium carbonate, 3-5 parts of petroleum ether and 2-4 parts of azodicarbonamide; the active agent adopts stearic acid; the lubricant is chlorinated paraffin, and in the step 1, glassine paper is selected for making the raw paper layer, corona treatment is carried out on the upper surface and the lower surface of the raw paper layer, and then double-sided lamination is carried out. Preferably selecting PE plastic particles with good melt index, having good adhesive force with base paper, quickly laminating and controlling coating amount, wherein the release paper after laminating has better moisture-proof effect, the laminating layer is the PE plastic particles, a corona processor is adopted to treat the surface of the base paper layer for 180s at a kilometer of 370 plus 525W, and a silicon oil layer is coated; in step 2, the release agent layer is solvent-free silicone oil, and the coating amount is as follows: 0.3-1.5g/m2The release layer is made of solvent-free silicone oil, no solvent is required to be added during use, the release layer can be directly coated for use and is suitable for products with light release force and ultra-light release force, and after the laminating paper is rolled by a roller with concave-convex embossing, concave-convex embossing grooves are formed on the surface of the laminating paper; uniformly coating silicone oil on the surface of the laminating paper by adopting a coating machine, then drying the laminating paper with three-stage temperature sections of 100-200 ℃, and cooling; and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
Example three:
uniformly mixing polyethylene and modified polyolefin according to the mass ratio of 1: 01-05, heating and melting, laminating to the corona-pretreated raw paper layer, wherein the laminating amount is 5-20 g/cooling to obtain laminated paper, and forming a first laminating layer; the high molecular polymer consists of polyurethane in 4-6 weight portions7-9 parts of polylactic acid and 11-15 parts of polyvinyl alcohol, wherein the softwood pulp is one or a mixture of more than two of masson pine fiber wood pulp, larch fiber wood pulp, red pine fiber wood pulp and spruce fiber wood pulp, and the foaming agent is prepared from the following raw materials in parts by weight, 1-2 parts of magnesium carbonate, 3-5 parts of petroleum ether and 2-4 parts of azodicarbonamide; the active agent is stearic acid; the lubricant is chlorinated paraffin, and in the step 1, glassine paper is selected for making the raw paper layer, corona treatment is carried out on the upper surface and the lower surface of the raw paper layer, and then double-sided lamination is carried out. Preferably selecting PE plastic particles with good melt index, having good adhesive force with base paper, quickly laminating and controlling coating amount, wherein the release paper after laminating has better moisture-proof effect, the laminating layer is the PE plastic particles, a corona processor is adopted to treat the surface of the base paper layer for 180s at a kilometer of 370 plus 525W, and a silicon oil layer is coated; in step 2, the release agent layer is solvent-free silicone oil, and the coating amount is as follows: 0.3-1.5g/m2The release layer is made of solvent-free silicone oil, no solvent is required to be added during use, the release layer can be directly coated for use and is suitable for products with light release force and ultra-light release force, and after the laminating paper is rolled by a roller with concave-convex embossing, concave-convex embossing grooves are formed on the surface of the laminating paper; in the step 4, in the third-stage temperature section, the temperature range of the head end temperature section is 100-150 ℃, the temperature range of the middle temperature section is 150-200 ℃, the temperature range of the tail end temperature section is 150-100 ℃, the mixture of polyethylene and modified polyolefin is heated and bridged at the temperature of 150-250 ℃, then the temperature is increased to 280-400 ℃ for melting, then the mixture is extruded by applying the pressure of 10-20 Mpa, the temperature is kept between 300-400 ℃ during film lamination, the paper feeding speed of a conveyor belt is 50-100 m/min when the film lamination paper is pressed and rolled by a roller with concave-convex embossing, silicone oil is uniformly coated on the surface of the film lamination paper by adopting a coating machine, and then the silicon oil is dried and cooled in the third-stage temperature section of 100-200 ℃; and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
Example four:
mixing polyethylene with modified polyethyleneUniformly mixing olefin according to the mass ratio of 1: 01-05, heating and melting, laminating to the corona-pretreated raw paper layer, wherein the laminating amount is 5-20 g/cooling to obtain laminated paper, and forming a first laminating layer; the high molecular polymer comprises, by weight, 4-6 parts of polyurethane, 7-9 parts of polylactic acid, 11-15 parts of polystyrene of polyvinyl alcohol 2-5 parts, wherein softwood pulp is one or a mixture of more than two of Chinese red pine fiber wood pulp, larch fiber wood pulp, Korean pine fiber wood pulp and spruce fiber wood pulp, and the foaming agent is prepared from, by weight, 1-2 parts of magnesium carbonate, 3-5 parts of petroleum ether and 2-4 parts of azodicarbonamide; the active agent is stearic acid; the lubricant is chlorinated paraffin, and in the step 1, glassine paper is selected for making the raw paper layer, corona treatment is carried out on the upper surface and the lower surface of the raw paper layer, and then double-sided lamination is carried out. Preferably selecting PE plastic particles with good melt index, having good adhesive force with base paper, quickly laminating and controlling coating amount, wherein the release paper after laminating has better moisture-proof effect, the laminating layer is the PE plastic particles, a corona processor is adopted to treat the surface of the base paper layer for 180s at a kilometer of 370 plus 525W, and a silicon oil layer is coated; in step 2, the release agent layer is solvent-free silicone oil, and the coating amount is as follows: 0.3-1.5g/m2The release layer is made of solvent-free silicone oil, no solvent is required to be added during use, the release layer can be directly coated for use and is suitable for products with light release force and ultra-light release force, and after the laminating paper is rolled by a roller with concave-convex embossing, concave-convex embossing grooves are formed on the surface of the laminating paper; in the step 4, in the third temperature section, the temperature range of the head end temperature section is 100-150 ℃, the temperature range of the middle temperature section is 150-200 ℃, the temperature range of the tail end temperature section is 150-100 ℃, the mixture of polyethylene and modified polyolefin is heated and bridged at the temperature of 150-250 ℃, then the temperature is increased to 280-400 ℃ for melting, then the mixture is extruded by applying the pressure of 10-20 Mpa, the temperature is kept between 300-400 ℃ during film coating, the paper feeding speed of a conveyor belt is 50-100 m/min during rolling and rolling of concave-convex embossing of the film coating paper, the silicone oil is uniformly coated on the convex surface of the film coating paper by the dry silicon coating amount of 0.5-10 g/square meter, and the film coating paper coated with the silicone oil is driedSending the laminated paper into a drying box by adopting a conveyor belt mode, uniformly coating silicon oil on the surface of the laminated paper by adopting a coating machine at the paper feeding speed of 50-100 m/min, drying the laminated paper with three-stage temperature sections of 100-200 ℃, and cooling; and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A double-sided release paper of no solvent silicone oil which characterized in that: comprises the following components by weight: solvent-free silicone oil 0.3-1.5g/m225-35g/m softwood pulp233-40 hardwood pulp g/m20.6-0.9g/m of foaming agent211-14g/m of active agent2High molecular polymer 11-15g/m2Polyethylene oxide 7-11g/m212-15g/m of lubricant2。
2. The solvent-free silicone oil double-sided release paper according to claim 1, wherein: the high molecular polymer comprises, by weight, 4-6 parts of polyurethane, 7-9 parts of polylactic acid, 11-15 parts of polyvinyl alcohol, 2-5 parts of polystyrene, wherein softwood pulp is one or a mixture of more than two of Chinese red pine fiber wood pulp, larch fiber wood pulp, Korean pine fiber wood pulp and spruce fiber wood pulp, and the foaming agent is prepared from, by weight, 1-2 parts of magnesium carbonate, 3-5 parts of petroleum ether and 2-4 parts of azodicarbonamide; the active agent is stearic acid; the lubricant is chlorinated paraffin.
3. A preparation process of solvent-free silicone oil double-sided release paper is characterized by comprising the following steps: the method comprises the following steps:
step 1: uniformly mixing polyethylene and modified polyolefin according to the mass ratio of 1: 01-05, heating for melting, laminating to the raw paper layer subjected to corona pretreatment, and cooling to obtain laminated paper with the laminating amount of 5-20g to form a first laminated layer;
step 2: coating a silicon oil layer, namely coating silicon oil on the surface of the laminating paper, and drying after coating to form a release agent layer;
and step 3: rolling the laminated paper by a roller with concave-convex embossing, and then presenting concave-convex embossing grooves on the surface;
and 4, step 4: uniformly coating silicone oil on the surface of the laminating paper by adopting a coating machine, then drying the laminating paper with three-stage temperature sections of 100-200 ℃, and cooling;
and 5: and spraying water mist on the silicone oil release layer, feeding water for rewetting, and then slitting by a throwing machine to form a single silicone oil release paper product.
4. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: in the step 1, glassine paper is selected for the raw paper layer, corona treatment is carried out on the upper surface and the lower surface of the raw paper layer, and then double-sided lamination is carried out. Preferably selecting PE plastic particles, having good melt index, having good adhesive force with the base paper, quickly laminating and controlling the coating amount, and the release paper after laminating has better moisture-proof effect, wherein the laminating layer is the PE plastic particles, and a corona processor is adopted to process the surface of the base paper layer for 180s at the speed of 370-525W.
5. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: in the step 2, the release agent layer is solvent-free silicon oil, and the coating quantity is as follows: 0.3-1.5g/m2The release layer is made of solvent-free silicone oil, and can be directly coated for use without adding any solvent during use, and is suitable for products with light release force and ultra-light release force.
6. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: in the step 4, the temperature range of the temperature section at the head end of the three-stage temperature section is 100-150 ℃, the temperature range of the temperature section at the middle part is 150-200 ℃, and the temperature range of the temperature section at the tail end is 150-100 ℃.
7. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: the mixture of polyethylene and modified polyolefin is heated and bridged at the temperature of 150-250 ℃, then the temperature is increased to 280-400 ℃ for melting, then the mixture is extruded by applying the pressure of 10-20 Mpa, and the temperature is kept between 300-400 ℃ during film spraying.
8. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: and the paper feeding speed of the conveyor belt is 50-100 m/min when the film laminating paper is pressed and grinded by the roller with the concave-convex embossing.
9. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: the silicone oil is uniformly coated on the convex surface of the laminating paper in a dry silicone coating amount of 0.5-10 g/square meter.
10. The preparation process of the solvent-free silicone oil double-sided release paper according to claim 3, characterized in that: when the coated film paper is dried, the coated film paper is conveyed into a drying box in a conveying belt mode, and the paper conveying speed of the conveying belt is 50-100 m/min.
CN202210079304.6A 2022-01-24 2022-01-24 Solvent-free silicon oil double-sided release paper and preparation process thereof Pending CN114481684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210079304.6A CN114481684A (en) 2022-01-24 2022-01-24 Solvent-free silicon oil double-sided release paper and preparation process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210079304.6A CN114481684A (en) 2022-01-24 2022-01-24 Solvent-free silicon oil double-sided release paper and preparation process thereof

Publications (1)

Publication Number Publication Date
CN114481684A true CN114481684A (en) 2022-05-13

Family

ID=81474661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210079304.6A Pending CN114481684A (en) 2022-01-24 2022-01-24 Solvent-free silicon oil double-sided release paper and preparation process thereof

Country Status (1)

Country Link
CN (1) CN114481684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114808540A (en) * 2022-05-18 2022-07-29 仙鹤股份有限公司 Preparation method of high-cleanness release paper

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006152265A (en) * 2004-10-29 2006-06-15 Shin Etsu Chem Co Ltd Hardening silicone release agent composition and release paper using it
CN102359031A (en) * 2011-08-22 2012-02-22 湖南福泰数码材料科技有限公司 Anti-sticking paper preparation method with low consumption of silicone oil
CN105421151A (en) * 2015-12-27 2016-03-23 泉州市奈斯材料科技有限公司 Preparation method of release paper with less silicone oil for sticking resistance
CN106012670A (en) * 2016-05-17 2016-10-12 湖南省和祥润新材料有限公司 Release paper for adhesive tape and preparation method of release paper
CN110144761A (en) * 2019-06-03 2019-08-20 苏州甲腾包装材料科技有限公司 A kind of preparation method of silicon oil release paper
CN113250007A (en) * 2021-05-06 2021-08-13 吉翔宝（太仓）离型材料科技发展有限公司 Low-peeling-force high-temperature-resistant release paper and processing technology thereof
CN113550173A (en) * 2021-07-23 2021-10-26 江苏斯迪克新材料科技股份有限公司 Micro-grid release paper and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006152265A (en) * 2004-10-29 2006-06-15 Shin Etsu Chem Co Ltd Hardening silicone release agent composition and release paper using it
CN102359031A (en) * 2011-08-22 2012-02-22 湖南福泰数码材料科技有限公司 Anti-sticking paper preparation method with low consumption of silicone oil
CN105421151A (en) * 2015-12-27 2016-03-23 泉州市奈斯材料科技有限公司 Preparation method of release paper with less silicone oil for sticking resistance
CN106012670A (en) * 2016-05-17 2016-10-12 湖南省和祥润新材料有限公司 Release paper for adhesive tape and preparation method of release paper
CN110144761A (en) * 2019-06-03 2019-08-20 苏州甲腾包装材料科技有限公司 A kind of preparation method of silicon oil release paper
CN113250007A (en) * 2021-05-06 2021-08-13 吉翔宝（太仓）离型材料科技发展有限公司 Low-peeling-force high-temperature-resistant release paper and processing technology thereof
CN113550173A (en) * 2021-07-23 2021-10-26 江苏斯迪克新材料科技股份有限公司 Micro-grid release paper and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114808540A (en) * 2022-05-18 2022-07-29 仙鹤股份有限公司 Preparation method of high-cleanness release paper

Similar Documents

Publication Publication Date Title
CN104589677B (en) With the online two-sided roller coating technology and its device of the high bright panel material of solvent-free UV coating material productions
US8334038B2 (en) Release liner having friction coating, laminate, and methods for manufacturing and using
CN101402817A (en) Environment-friendly holography aluminising transfer paint, preparation and uses thereof
CN112608693A (en) Release paper and preparation method thereof
CN1810864A (en) Adhesive protecting film
CN107119496A (en) A kind of maceration extract and its quick method for preparing transparency paper and the application of the transparency paper prepared
CN114481684A (en) Solvent-free silicon oil double-sided release paper and preparation process thereof
KR101268217B1 (en) Thermo-shrinkable polyester mono-layer film
CN112373159A (en) High-peel-strength PVOH (polyvinyl alcohol) composite film for protecting printing surface and preparation method thereof
CN114536919B (en) Polypropylene thermal composite material and preparation method and application thereof
CN105926360B (en) The production method of epipodium water-retaining property transition card paper
CN112321876A (en) PVOH (polyvinyl alcohol) coating film for protecting printing surface and preparation method thereof
CN113583529A (en) Aqueous coating liquid, preparation method thereof and application of aqueous coating liquid in UV ink printing
KR101879816B1 (en) Release paper and its manufacturing method
US20120121893A1 (en) Better curing coated release liner substrate
CN113235326A (en) Low-transfer anti-folding glassine release paper and preparation method thereof
CN206406558U (en) A kind of hydrophily antifog film
CN104610836A (en) Moisture absorption coating for single plastic film label, label and preparation method of label
CN102259370A (en) Method for manufacturing wood-powder-based separator paper
CN110684224A (en) Matte release film with stable stripping property
CN212315997U (en) Easily tear type kraft paper protection film
CN212827281U (en) Solvent-free aluminizing composite transfer online printing structure
CN113263849B (en) Cigarette anti-counterfeiting holographic two-dimensional code electrochemical aluminum and preparation method thereof
CN214881222U (en) Water-based environment-friendly packaging adhesive tape
JP6197723B2 (en) Release sheet

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