CN110293733A - A kind of release internal lining paper of silicone oil and preparation method thereof - Google Patents
A kind of release internal lining paper of silicone oil and preparation method thereof Download PDFInfo
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- CN110293733A CN110293733A CN201910465211.5A CN201910465211A CN110293733A CN 110293733 A CN110293733 A CN 110293733A CN 201910465211 A CN201910465211 A CN 201910465211A CN 110293733 A CN110293733 A CN 110293733A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
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Abstract
The invention discloses release internal lining papers of a kind of silicone oil and preparation method thereof, include aluminium foil, body paper, composite layer and silicone coating, the aluminium foil is by composite layer compoiste adhering in forming aluminium-foil paper on body paper, aluminium-foil paper surface layer is coated with silicone coating, further includes one layer of leaching membrane layer between the body paper and silicone coating.The compound planarization for dramatically increasing the release internal lining paper of silicone oil of gluing again after raw material aluminium foil and body paper surface are pre-formed silicone coating, acrylate can be covered in paper or aluminium foil surface for silicone oil is evenly dispersed as film forming agent, so that silicone coating is thin and adherency is close not easily to fall off, enhance the ability of organic solvent-resistant and water；Aluminium foil solidifies one layer of silicone coating in advance can effectively prevent scratching caused by subsequent extrusion composite steps, is dry and astringent, make aluminium-foil paper smooth；Both had the damp proof insulation performance of release paper, the bright looking but also with aluminium-foil paper simultaneously further increases the performance that barrier moisture enters and leaves, and maintains the ambient stable in cigarette package.
Description
Technical field
The present invention relates to aluminum foil lining paper field, in particular to a kind of release internal lining paper of silicone oil and preparation method thereof.
Background technique
Cigarette package is an important component of production of cigarettes, is last procedure of entire production process.?
In production of cigarettes, circulation and the overall process of consumption, the superiority and inferiority of packaging material is to maintenance cigarette product quality, promotion sale, guidance
Consume important role.For relatively other commodity, to certain particularity that requires of cigarette packaging material, such as:
There cannot be peculiar smell, answer non-toxic to humans, should have certain moisture resistance and insulating etc..
Cigarette is to be formed by 10~20 microns of thick aluminium foils and 20~70 microns of thick paper by glue sticking with aluminium-foil paper,
Effect is primarily used to the cigarette in package cigarette case, and Conservation environment needed for maintaining cigarette, keeps cigarette moisture, delays cigarette
Flavor component scatters and disappears.
Release paper is also known as barrier paper, separate paper, silicone oil paper.It is that one kind prevents prepreg adhesion, and can protect prepreg
Not contaminated separate paper.Release paper is made of the paper for being coated with preventing viscosity substance, and model will be according to material, thickness, elongation, list
Two-sided difference and distinguish, generally use silicone oil single or double coating preparation.
When producing aluminum foil lining paper, aluminium foil compound tense is frequently encountered product aluminium foil surface in recombination process and easily scrapes
The problems such as colored, dry and astringent, luminance difference, and only aluminium foil and paper composite packaging cigarette dampproof effect is poor.Therefore developing one kind has
The highlighted aluminum foil lining paper of the excellent isolation humidity resistance of release paper is of great significance.
Summary of the invention
The technical problems to be solved by the invention: the problem of preparing for current cigarette package internal lining paper lacks
Fall into, the present invention provides a kind of release internal lining paper of silicone oil and preparation method thereof, keeps aluminium foil more smooth in compoiste adhering, it is submissive simultaneously
Aluminium foil brightness is improved, increases the humidity resistance of internal lining paper, and reduce production cost.
In order to solve the above technical problems, the present invention provides technical solution below:
A kind of release internal lining paper of silicone oil, includes aluminium foil, body paper, composite layer and silicone coating, and the aluminium foil passes through compound
For glue-line compoiste adhering in forming aluminium-foil paper on body paper, the upper epidermis of the aluminium foil and the layer of body paper are coated with silicone oil painting
Layer, is also coated with leaching membrane layer between the body paper and silicone coating.
Preferably, the aluminum foil thickness is 15~25 μm and the body paper with a thickness of 40~60 μm, the composite layer
With a thickness of 4.2~7.5 μm, the leaching membrane layer is with a thickness of 2.2~5.3 μm.
Preferably, the silicone coating is prepared by dehydrated alcohol, acrylate, silicone oil and photoinitiator, nothing
Water-ethanol: acrylate: silicone oil: the weight ratio of photoinitiator is 1:4:5:1；The leaching membrane layer is existed by low density polyethylene (LDPE)
Single side lamination forms on body paper.
Preferably, the acrylate is prepared by the raw material of following parts by weight: 20~45 parts of acrylate
996,14~28 part 983,1~10 part of 2 (2- ethoxy ethoxy) ethyl propylene acid esters, 5~15 parts of tripropylene glycol dipropyls
Olefin(e) acid ester, 10~20 parts of trimethylolpropane trimethacrylates；The silicone oil is by methyl-silicone oil, polymethylphenyl siloxane fluid, acrylate
One of modified organic silicon, Methyl Hydrogen Polysiloxane Fluid, hydroxy silicon oil or a variety of compositions；The specific gravity of the low density polyethylene (LDPE) is
0.912~0.921g/cm3。
A kind of preparation method of the release internal lining paper of above-mentioned silicone oil includes following specific steps:.
(1) silicone coating liquid charging stock is prefabricated: weighing acrylate raw material and is put into 65 after being mixed sealing
In~75 DEG C of baking ovens, silicone oil is added after viscosity decline and standing removing bubble obtains acrylic resin mixed liquor after mixing evenly；
Photoinitiator is placed at 45~55 DEG C after melting and is added dropwise in uniformly mixed acrylic resin mixed liquor, is added anhydrous
Ethyl alcohol is thoroughly mixed, it is to be mixed uniformly after in 20~40 DEG C of baking ovens stand 12~14h sufficiently to remove in mixed liquor
Bubble；
(2) prepared by silicone coating aluminium foil: by silicone coating liquid charging stock along aluminium foil width direction uniformly above it,
The aluminium foil coated is sent to rapidly in aluminium foil surface Coating using the method for blade coating by the transmission opened in advance with blade applicator
Ultraviolet light solidification is carried out in belt uv cure machine, slowly removes aluminium foil from the uv cure machine other side, coating is completed solid
Change；
(3) using polyethylene as raw material, single side lamination is carried out to body paper using laminating machine and obtains leaching membrane paper, after leaching membrane paper is cooling
It winds spare；The lamination face of leaching membrane paper is carried out to the preparation of silicone coating, preparation method repeats step (1) and (2), in non-lamination
One side brushing compound adhesive；
(4) one side of silicone coating will not bonds on silicone coating aluminium foil with leaching membrane paper double roller extrusion cladding, after bonding
Aluminium-foil paper be directly conveyed into dryer 150~180 DEG C of 15~25min of drying to obtain the final product
Preferably, the step (3) further includes body paper pretreatment: the dust and impurity on body paper surface is blown away with blower,
Even sprinkling water mist, fountain height are 70~100g/m2, it is 10~15% taking-ups that air-heater, which is dried up to water content, after pressing, after being used for
Continuous lamination step.
Preferably, the laminating machine parameter be 280~320 DEG C of extrusion temperature, 320~330 DEG C of die head temperature, melt temperature
320~340 DEG C, 10~15 DEG C of mirror roller cooling water temperature.
It is that the present invention obtains the utility model has the advantages that
1, silicone oil has good heat resistance, hydrophobicity and lesser surface tension, and paper can be reinforced on aluminium-foil paper by applying
The brightness opened, makes smooth and soft surface, can preferably prevent the loss and intervention of moisture content.Acrylate is as film forming agent
Paper or aluminium foil surface can be covered in by silicone oil is evenly dispersed, so that silicone coating is thin and adherency is close not easily to fall off, enhanced resistance to
The ability of organic solvent and water；
2, aluminium foil solidifies one layer of silicone coating in advance can make aluminium foil itself smooth submissive, increase aluminium foil to the docile of paper
Property effectively prevent scratching caused by subsequent extrusion composite steps, is dry and astringent, making aluminium-foil paper smooth；Both had release paper every
Damp performance, bright looking but also with aluminium-foil paper simultaneously further increase the performance that barrier moisture enters and leaves, maintain in cigarette package
Ambient stable.
3, the certain water content of smooth rear reservation of spraying water before paper lamination can dramatically increase the planarization of paper lamination, be
The phenomenon that subsequent clad aluminum foil provides good flatness, reduces compound tense paper curling rake angle, dries in high temperature lamination and bonding
Moisture gradually volatilizees during dry, and the water content in finished product internal lining paper is extremely low, does not influence the moisture barrier of cigarette package.
4, lamination re-coating silicone coating is first carried out on body paper, can effectively reduce absorption of the body paper to silicone oil, is reduced former
Paper eats oil mass, reduces the materials of silicone coating raw material, reduces production cost.Silicone coating uses ultraviolet irradiation rapid curing work
Skill, it is possible to reduce film formation time increases membrane stability, improves production efficiency.
5, compound to dramatically increase silicone oil release for gluing again after raw material aluminium foil and body paper surface are pre-formed silicone coating
The planarization of internal lining paper, if directlying adopt aluminium-foil paper coating silicone coating will lead to the embrittlement in lamination high temperature of surface aluminium foil,
Gloss reduces, and phenomena such as ripple tilting occurs in paper, influences packaging and uses.
Detailed description of the invention
Fig. 1 is the release internal lining paper schematic diagram of a layer structure of silicone oil of the invention；
1- silicone coating, 2- aluminium foil, 3- composite layer, 4- body paper, 5- leaching membrane layer, 6- silicone coating.
Specific embodiment
Below by the description to embodiment, specific embodiments of the present invention will be described in further detail, with side
Those skilled in the art is helped to have more complete, accurate and deep understanding to inventive concept of the invention, technical solution.
Embodiment 1: it is prepared as follows the release internal lining paper of silicone oil
One, the preparation of raw material:
Aluminum foil thickness be 15 μm, body paper with a thickness of 40 μm；
Acrylate raw material: 20 parts of acrylate, 996,14 parts of 983,1 parts of 2 (2- ethoxies is weighed by following parts by weight
Base oxethyl) ethyl propylene acid esters, 5 parts of tri (propylene glycol) diacrylates, 10 parts of trimethylolpropane trimethacrylates；It will
20min in 65 DEG C of baking ovens, which is put into, after the mixing sealing of acrylate raw material prepares acrylate.
Silicone oil is methyl-silicone oil, acrylate modified organosilicon 1:3 in mass ratio is mixed；
The specific gravity of low density polyethylene (LDPE) is 0.912g/cm3.Photoinitiator is using photoinitiator 184.
Two, the preparation of the release internal lining paper of silicone oil includes following specific steps:
(1) silicone coating liquid charging stock is prefabricated: pressing dehydrated alcohol: acrylate: silicone oil: the weight of photoinitiator
Than weighing raw material for 1:4:5:1, acrylate is heated to 65 DEG C, silicone oil and quiet after mixing evenly is added after viscosity decline
It sets removing bubble and obtains acrylic resin mixed liquor；Photoinitiator is placed at 45 DEG C after melting and is added dropwise to uniformly mixed third
In olefin(e) acid resin mixture liquor, be added dehydrated alcohol be thoroughly mixed, it is to be mixed uniformly after in 20 DEG C of baking ovens stand 12h to fill
Divide the bubble removed in mixed liquor；
(2) prepared by silicone coating aluminium foil: by silicone coating liquid charging stock along aluminium foil width direction uniformly above it,
The aluminium foil coated is sent to rapidly in aluminium foil surface Coating using the method for blade coating by the transmission opened in advance with blade applicator
Ultraviolet light solidification, transmission speed 5m/min, irradiation time 12s, from uv cure machine are carried out in belt uv cure machine
The other side slowly removes aluminium foil, and coating completes solidification；
(3) dust and impurity that body paper surface is blown away with blower, uniformly spray water mist, fountain height 70g/m2, after pressing
It is 10% taking-up that air-heater, which is dried up to water content, is used for subsequent lamination step；Using low density polyethylene (LDPE) as raw material, using lamination
Machine carries out single side lamination to body paper and obtains leaching membrane paper, and leaching membrane paper rolling after cooling is spare, and laminating machine parameter is 280 DEG C of extrusion temperature,
320 DEG C of die head temperature, 320 DEG C of melt temperature, 10 DEG C of mirror roller cooling water temperature；The lamination face of leaching membrane paper is subjected to silicone coating
Preparation, preparation method repeat step (1) and (2), in the one side brushing compound adhesive of non-lamination；
(4) one side of silicone coating will not bonds on silicone coating aluminium foil with leaching membrane paper double roller extrusion cladding, after bonding
Aluminium-foil paper be directly conveyed into dryer 150 DEG C of drying 15min to obtain the final product.
Using electric vortex coating thickness detector measurement composite layer with a thickness of 4.2 μm, the leaching membrane layer is with a thickness of 2.2 μm.
Embodiment 2: it is prepared as follows the release internal lining paper of silicone oil
One, the preparation of raw material:
Aluminum foil thickness be 25 μm, body paper with a thickness of 60 μm；
Acrylate raw material: 45 parts of acrylate, 996,28 parts of 983,10 parts of 2 (2- ethoxies is weighed by following parts by weight
Base oxethyl) ethyl propylene acid esters, 15 parts of tri (propylene glycol) diacrylates, 20 parts of trimethylolpropane trimethacrylates；
Acrylate is prepared by 30min in 75 DEG C of baking ovens is put into after the mixing sealing of acrylate raw material.
Silicone oil includes one of polymethylphenyl siloxane fluid, acrylate modified organosilicon, hydroxy silicon oil or a variety of；
The specific gravity of low density polyethylene (LDPE) is 0.921g/cm3.Photoinitiator is using photoinitiator 184 and photoinitiator
1173 by 1:1 mass ratio mixing gained.
Two, the preparation of the release internal lining paper of silicone oil includes following specific steps:
(1) silicone coating liquid charging stock is prefabricated: pressing dehydrated alcohol: acrylate: silicone oil: the weight of photoinitiator
Than weighing raw material for 1:4:5:1, acrylate is heated to 75 DEG C, silicone oil and quiet after mixing evenly is added after viscosity decline
It sets removing bubble and obtains acrylic resin mixed liquor；Photoinitiator is placed at 55 DEG C after melting and is added dropwise to uniformly mixed third
In olefin(e) acid resin mixture liquor, be added dehydrated alcohol be thoroughly mixed, it is to be mixed uniformly after in 40 DEG C of baking ovens stand 14h to fill
Divide the bubble removed in mixed liquor；
(2) prepared by silicone coating aluminium foil: by silicone coating liquid charging stock along aluminium foil width direction uniformly above it,
The aluminium foil coated is sent to rapidly in aluminium foil surface Coating using the method for blade coating by the transmission opened in advance with blade applicator
Ultraviolet light solidification, transmission speed 1m/min, irradiation time 60s, from uv cure machine are carried out in belt uv cure machine
The other side slowly removes aluminium foil, and coating completes solidification；
(3) dust and impurity that body paper surface is blown away with blower, uniformly spray water mist, fountain height 100g/m2, after pressing
It is 15% taking-up that air-heater, which is dried up to water content, is used for subsequent lamination step；Using low density polyethylene (LDPE) as raw material, using lamination
Machine carries out single side lamination to body paper and obtains leaching membrane paper, and leaching membrane paper rolling after cooling is spare, and laminating machine parameter is 320 DEG C of extrusion temperature,
330 DEG C of die head temperature, 340 DEG C of melt temperature, 15 DEG C of mirror roller cooling water temperature；The lamination face of leaching membrane paper is subjected to silicone coating
Preparation, preparation method repeat step (1) and (2), in the one side brushing compound adhesive of non-lamination；
(4) one side of silicone coating will not bonds on silicone coating aluminium foil with leaching membrane paper double roller extrusion cladding, after bonding
Aluminium-foil paper be directly conveyed into dryer 180 DEG C of drying 25min to obtain the final product.
Using electric vortex coating thickness detector measurement composite layer with a thickness of 7.5 μm, the leaching membrane layer is with a thickness of 5.3 μm.
Embodiment 3: it is prepared as follows the release internal lining paper of silicone oil
One, the preparation of raw material:
Aluminum foil thickness be 20 μm, body paper with a thickness of 50 μm；
Acrylate raw material: 32 parts of acrylate, 996,21 parts of 983,5 parts of 2 (2- ethoxies is weighed by following parts by weight
Base oxethyl) ethyl propylene acid esters, 10 parts of tri (propylene glycol) diacrylates, 15 parts of trimethylolpropane trimethacrylates；
Acrylate is prepared by 25min in 70 DEG C of baking ovens is put into after the mixing sealing of acrylate raw material.
Silicone oil is Methyl Hydrogen Polysiloxane Fluid；The specific gravity of low density polyethylene (LDPE) is 0.917g/cm3.Photoinitiator is drawn using light
Send out agent 1173.
Two, the preparation of the release internal lining paper of silicone oil includes following specific steps:
(1) silicone coating liquid charging stock is prefabricated: pressing dehydrated alcohol: acrylate: silicone oil: the weight of photoinitiator
Than weighing raw material for 1:4:5:1, acrylate is heated to 70 DEG C, silicone oil and quiet after mixing evenly is added after viscosity decline
It sets removing bubble and obtains acrylic resin mixed liquor；Photoinitiator is placed at 50 DEG C after melting and is added dropwise to uniformly mixed third
In olefin(e) acid resin mixture liquor, be added dehydrated alcohol be thoroughly mixed, it is to be mixed uniformly after in 30 DEG C of baking ovens stand 13h to fill
Divide the bubble removed in mixed liquor；
(2) prepared by silicone coating aluminium foil: by silicone coating liquid charging stock along aluminium foil width direction uniformly above it,
The aluminium foil coated is sent to rapidly in aluminium foil surface Coating using the method for blade coating by the transmission opened in advance with blade applicator
Ultraviolet light solidification, transmission speed 3m/min, irradiation time 20s, from uv cure machine are carried out in belt uv cure machine
The other side slowly removes aluminium foil, and coating completes solidification；
(3) dust and impurity that body paper surface is blown away with blower, uniformly spray water mist, fountain height 85g/m2, after pressing
It is 13% taking-up that air-heater, which is dried up to water content, is used for subsequent lamination step；Using low density polyethylene (LDPE) as raw material, using lamination
Machine carries out single side lamination to body paper and obtains leaching membrane paper, and leaching membrane paper rolling after cooling is spare, and laminating machine parameter is 300 DEG C of extrusion temperature,
325 DEG C of die head temperature, 330 DEG C of melt temperature, 13 DEG C of mirror roller cooling water temperature；The lamination face of leaching membrane paper is subjected to silicone coating
Preparation, preparation method repeat step (1) and (2), in the one side brushing compound adhesive of non-lamination；
(4) one side of silicone coating will not bonds on silicone coating aluminium foil with leaching membrane paper double roller extrusion cladding, after bonding
Aluminium-foil paper be directly conveyed into dryer 165 DEG C of drying 20min to obtain the final product.
Using electric vortex coating thickness detector measurement composite layer with a thickness of 5.8 μm, the leaching membrane layer is with a thickness of 3.7 μm.
Comparative examples: tobacco aluminium-foil paper is prepared according to method disclosed in Chinese patent CN107190573A and is used for
Subsequent performance test is as control.
In order to detect performance of the invention, tested as follows:
1, the glossiness test of the release internal lining paper of silicone oil
Glossiness refers to that umerical body surface close to the degree of mirror surface, depends primarily on light source illumination and observation
Angle, apparatus measures generally use 20 °, 45 °, 60 ° or 75 ° angle illuminations and detecting signal.This experiment uses following test
Method: the release internal lining paper of silicone oil of the Examples 1 to 3 preparation of the certain area of clip and the aluminium-foil paper of comparative examples preparation are adopted
With the glossiness of Sheen60 type glossometer measurement aluminium foil surface, test angle is 60 °, refractive index nD=1.567 glass surface
Glossiness is defined as 100%.
Measurement, which was met, is shown in Table 1:
The glossiness measurement result of the release internal lining paper of 1 silicone oil of table
| Group | Glossiness (%) |
| Embodiment 1 | 87.3 |
| Embodiment 2 | 82.4 |
| Embodiment 3 | 85.3 |
| Comparative examples | 65.2 |
The glossiness of the internal lining paper aluminium foil surface of Examples 1 to 3 preparation is significantly higher than comparative examples, illustrates using in aluminium foil
The technique of precoating surfaces silicone coating overcomes the disadvantage that aluminium foil in recombination process is easy to scratch, dry and astringent, so that after compound gluing
Internal lining paper surface it is smooth, glossiness is excellent, is considerably better than conventional aluminium foil paper.
2, the adhesive force test of silicone coating
The test of coating adhesion carries out the coating on the release internal lining paper surface of silicone oil to draw lattice referring to GB9286-88 standard
Sample preparation, drawing lattice number is 5 × 5 lattice, and every lattice side length is 2mm.It draws lattice and uses hand cut, uniformly firmly, cutting speed is about 50mm/
S, steadily and without trembling.The coating surface after lattice is drawn after cutting with 3M adhesive tape bonding, shares 3M adhesive tape bonding 5 times, passes through observation
The remaining film grid number in aluminium-foil paper surface characterizes coating to the adhesive force of body paper to be classified, and 0 grade of adhesive force is best, and 5 grades attached
Put forth effort it is worst, wherein 0,1,2 three-levels are able to satisfy general service.
The solidification attachment grade measurement of 2 silicone coating of table
Silicone coating and paper and aluminium foil are firmly combined in the present invention of 2 result surface of table, although thickness is thin, be not easy by
External force is separated and is fallen off, and is laid the foundation to stablize damp proof insulation.
3, the flexibility test of aluminium-foil paper
This experiment winds aluminium-foil paper to be measured using in cylindrical body, maintains a period of time, and then expansion observation coating surface is
No appearance rupture is to evaluate flexible quality.Specific method is: being tri- square columns of 16mm, 10mm and 5mm in side length
Upper winding width is the sample to be tested of 60mm, and style is unfolded after 16h, observes the planarization of coating and whether there is or not fracture phenomenas to go out
It is existing.It the results are shown in Table 3:
The flexibility test result of the release internal lining paper of 3 silicone oil of table
3 result surface of table can dramatically increase the flexibility of aluminium foil in silicone coating, reduce in use that aluminium foil is easily rupturable to be showed
As, make it is compound after aluminium-foil paper have good flexibility.
4, the solvent resistance of the release internal lining paper of silicone oil
The release internal lining paper of the silicone oil prepared in embodiment 3 is tested into the release internal lining paper sample of silicone oil using manual wipe method
Solvent resistance, i.e., dip in ketone with absorbent cotton and do not take different solvents, it is reciprocal with suitable pressure in release paper patterned surface to be measured
Then the situation of change of coating surface is observed in wiping 30 times.It the results are shown in Table 4:
Table 4
Table 4 is the result shows that the release internal lining paper surface silicone coating of silicone oil has good solvent resistance, and coating is through water, acetic acid
Second vinegar, N, after mono- dimethyl methyl phthalein amine of N, toluene, ethyl alcohol and acetone are wiped repeatedly 30 times, coating surface is unchanged, explanation
Coating has the good ability resisting above-mentioned solvent and corroding.For silicone coating after ultraviolet light, curing degree is higher, is formed
Comparatively dense reticular structure has excellent solvent resistant isolation performance.
In conclusion silicone oil has good heat resistance, hydrophobicity and lesser surface tension, applying can on aluminium-foil paper
The brightness for reinforcing paper, makes smooth and soft surface, can preferably prevent the loss and intervention of moisture content.Acrylate conduct
Film forming agent can be covered in paper or aluminium foil surface for silicone oil is evenly dispersed, so that silicone coating is thin and adherency is close not easily to fall off,
Enhance the ability of organic solvent-resistant and water；Aluminium foil solidifies one layer of silicone coating in advance can make aluminium foil itself smooth submissive, increase aluminium
Foil effectively prevent scratching caused by subsequent extrusion composite steps, is dry and astringent, making aluminium-foil paper smooth to the docile property of paper；Both
Has the damp proof insulation performance of release paper, the bright looking but also with aluminium-foil paper simultaneously further increases the performance that barrier moisture enters and leaves, dimension
Hold the ambient stable in cigarette package.The certain water content of smooth rear reservation of spraying water before paper lamination can dramatically increase paper leaching
The phenomenon that planarization of film provides good flatness for subsequent clad aluminum foil, reduces compound tense paper curling rake angle, in high temperature
Lamination and bonding drying course in moisture gradually volatilize, the water content in finished product internal lining paper is extremely low, do not influence cigarette package every
Tide.Lamination re-coating silicone coating is first carried out on body paper, can effectively reduce absorption of the body paper to silicone oil, is reduced body paper and is eaten oil
Amount reduces the materials of silicone coating raw material, reduces production cost.Silicone coating uses ultraviolet irradiation fast-curing process, can be with
Film formation time is reduced, membrane stability is increased, improves production efficiency.After raw material aluminium foil and body paper surface are pre-formed silicone coating
The compound planarization for dramatically increasing the release internal lining paper of silicone oil of gluing again, if directlying adopt aluminium-foil paper coating silicone coating can lead
Cause surface aluminium foil brittle in lamination high temperature, gloss reduces, and phenomena such as ripple tilting occurs in paper, influences packaging and uses.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within；The technology that the present invention is not directed to can be realized by the prior art.
Claims (7)
1. a kind of release internal lining paper of silicone oil, it is characterised in that: include aluminium foil, body paper, composite layer and silicone coating, the aluminium foil
It is coated with by composite layer compoiste adhering in forming aluminium-foil paper, the upper epidermis of the aluminium foil and the layer of body paper on body paper
Silicone coating is also coated with leaching membrane layer between the body paper and silicone coating.
2. the release internal lining paper of a kind of silicone oil according to claim 1, it is characterised in that: the aluminum foil thickness is 15~25
μm and the body paper with a thickness of 40~60 μm, the composite layer is with a thickness of 4.2~7.5 μm, and the leaching membrane layer is with a thickness of 2.2
~5.3 μm.
3. the release internal lining paper of a kind of silicone oil according to claim 1, it is characterised in that: the silicone coating is by anhydrous second
Alcohol, acrylate, silicone oil and photoinitiator are prepared, dehydrated alcohol: acrylate: silicone oil: photoinitiator
Weight ratio is 1:4:5:1；By low density polyethylene (LDPE), the single side lamination on body paper forms the leaching membrane layer.
4. according to the release internal lining paper of a kind of silicone oil described in claim 3, it is characterised in that: the acrylate is by as follows
The raw material of parts by weight is prepared: 20~45 parts of 996,14~28 parts 983,1~10 parts 2 of acrylate (2- ethoxy ethoxy)
Ethyl propylene acid esters, 5~15 parts of tri (propylene glycol) diacrylates, 10~20 parts of trimethylolpropane trimethacrylates；Institute
Silicone oil is stated by one of methyl-silicone oil, polymethylphenyl siloxane fluid, acrylate modified organosilicon, Methyl Hydrogen Polysiloxane Fluid, hydroxy silicon oil
Or a variety of compositions；The specific gravity of the low density polyethylene (LDPE) is 0.912~0.921g/cm3。
5. a kind of preparation method of the release internal lining paper of the silicone oil as described in any one of claim 1-4, which is characterized in that comprising such as
Lower specific steps:.
(1) silicone coating liquid charging stock is prefabricated: weighing acrylate raw material and is put into 65~75 after being mixed sealing
In DEG C baking oven, silicone oil is added after viscosity decline and stands removing bubble after mixing evenly obtains acrylic resin mixed liquor；By light
Initiator is placed at 45~55 DEG C and is added dropwise in uniformly mixed acrylic resin mixed liquor after fusing, and dehydrated alcohol is added
Be thoroughly mixed, it is to be mixed uniformly after in 20~40 DEG C of baking ovens stand 12~14h sufficiently to remove the bubble in mixed liquor；
(2) prepared by silicone coating aluminium foil: silicone coating liquid charging stock being uniformly poured on its upper surface along the width direction of aluminium foil, is used
The aluminium foil coated, in aluminium foil surface Coating, is sent to rapidly the conveyer belt opened in advance using the method for blade coating by blade applicator
Ultraviolet light solidification is carried out in formula uv cure machine, slowly removes aluminium foil from the uv cure machine other side, coating completes solidification；
(3) using polyethylene as raw material, single side lamination is carried out to body paper using laminating machine and obtains leaching membrane paper, leaching membrane paper rolling after cooling
It is spare；The lamination face of leaching membrane paper is carried out to the preparation of silicone coating, preparation method repeats step (1) and (2), the one of non-lamination
Face brushing compound adhesive；
(4) lower surface of silicone coating aluminium foil and leaching membrane paper double roller extrusion cladding are bonded, the aluminium-foil paper after bonding directly transmits
Into 150~180 DEG C of 15~25min of drying in dryer to obtain the final product.
6. a kind of preparation method of the release internal lining paper of silicone oil according to claim 5, it is characterised in that: the step
(3) further including body paper pretreatment: blowing away the dust and impurity on body paper surface with blower, uniformly spray water mist, fountain height is 70~
100g/m2, it is 10~15% taking-ups that air-heater, which is dried up to water content, after pressing, is used for subsequent lamination step.
7. a kind of preparation method of the release internal lining paper of silicone oil according to claim 5, it is characterised in that: the laminating machine
Parameter be 280~320 DEG C of extrusion temperature, 320~330 DEG C of die head temperature, 320~340 DEG C of melt temperature, mirror roller coolant water temperature
10~15 DEG C of degree.
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| CN111926621A (en) * | 2020-07-16 | 2020-11-13 | 长沙铭凯纸制品有限公司 | Preparation method of combined environment-friendly paper |
| CN113403876A (en) * | 2021-06-29 | 2021-09-17 | 浙江天之元物流科技有限公司 | Precise silicon coating process on release paper |
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| CN201679177U (en) * | 2010-01-21 | 2010-12-22 | 珠海东诚光固化材料有限公司 | UV cured transfer film metal decorative board |
| CN203188063U (en) * | 2013-01-09 | 2013-09-11 | 芜湖卷烟材料厂 | Cigarette-packing composite aluminum foil paper |
| CN105178107A (en) * | 2015-09-21 | 2015-12-23 | 滁州卷烟材料厂 | Cigarette aluminum-foil paper with anti-counterfeiting label |
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| CN101597874A (en) * | 2009-06-24 | 2009-12-09 | 朱锦佐 | A kind of manufacture craft of embossing laminating release paper |
| CN201679177U (en) * | 2010-01-21 | 2010-12-22 | 珠海东诚光固化材料有限公司 | UV cured transfer film metal decorative board |
| CN203188063U (en) * | 2013-01-09 | 2013-09-11 | 芜湖卷烟材料厂 | Cigarette-packing composite aluminum foil paper |
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| CN110293733B (en) | 2021-05-28 |
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