CN106273956A - A kind of embossing release film and processing technology thereof - Google Patents
A kind of embossing release film and processing technology thereof Download PDFInfo
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- CN106273956A CN106273956A CN201610615758.5A CN201610615758A CN106273956A CN 106273956 A CN106273956 A CN 106273956A CN 201610615758 A CN201610615758 A CN 201610615758A CN 106273956 A CN106273956 A CN 106273956A
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a kind of embossing release film, including substrate layer, leaching membrane layer and release layer；Described leaching membrane layer is arranged on described substrate layer, and the surface of described leaching membrane layer is formed with texture；Described release layer is arranged on described leaching membrane layer, and fits with described Texture Matching.This embossing release membrane structure is simple, embossing is clear, the depth is unified, distributing line is uniform, quality of finished product good.The invention also discloses the processing technology of this embossing release film, this technological process is simple, and difficulty is low, workable.
Description
Technical field
The present invention relates to mould release membrance technical field, particularly relate to a kind of embossing release film and processing technology thereof.
Background technology
At present, the most common mould release membrance, production process it is generally required to stretched step (even biaxial tension),
The finished product obtained basically can not realize regular streakline and extrude, and its surface only has bright finish and matte surface two kinds.Utilize this
The pressure sensitive adhesive tape that tradition mould release membrance is made, its surface is all smooth.When this pressure sensitive adhesive tape is attached to object
Time upper, if the temperature of object changes, pressure sensitive adhesive tape easily bubbles and heaves, thus have impact on the serviceability of object
And aesthetic property.Especially, if object is the object often generated heat, such as mobile phone, automobile, navigation, display, hand-held electric
Brain, panel computer etc., the phenomenon that pressure sensitive adhesive tape bubbles is even more serious, and the product of this type is not allow this phenomenon
's.
Although, occur in that the mould release membrance on a small quantity with embossing the most on the market, but the embossing on this mould release membrance be to use
The streakline that silicone oil is piled up and risen, and silicone oil is the thickest, thicker silicone oil animal migration is the highest.Therefore, this mould release membrance can only make
With on some low-grade adhesive tapes, such as commercial paper adhesive tape, trade mark class adhesive tape, and cannot be used for requiring in high industry, such as electronics
Industry, automobile industry etc..
Summary of the invention
In order to overcome the deficiencies in the prior art, first purpose of the present invention is to provide a kind of embossing release film, this pressure
Stricture of vagina mould release membrance simple in construction, utilizes this embossing release film can make all kinds of pressure sensitive adhesive tape, and these pressure sensitive adhesive tapes are attached to target
Time on thing, the gas produced because of variations in temperature be can effectively get rid of, good attachment laminating effect and good heat radiation reached
Effect, meets the requirement of automobile and electron trade.
Second object of the present invention is to provide the processing technology of a kind of embossing release film, and this technological process is simple, difficult
Spend low, workable.
First purpose of the present invention realizes by the following technical solutions:
A kind of embossing release film, including substrate layer, leaching membrane layer and release layer；Described leaching membrane layer is arranged on described substrate layer
On, the surface of described leaching membrane layer is formed with texture；Described release layer is arranged on described leaching membrane layer, and pastes with described Texture Matching
Close.
Preferably, glue layer is also included；Described glue layer is arranged between described substrate layer and described leaching membrane layer；Described glue
The lower surface of water layer is fitted with described substrate layer, and its upper surface is fitted with described leaching membrane layer.
Preferably, described substrate layer is BOPP thin film, PP thin film, PE thin film or PET film；Described leaching membrane layer is polyethylene
Layer or polypropylene layer；Described release layer is polysiloxane layer；Described glue layer is dry-type composite glue water layer.
Preferably, the coating weight of described leaching membrane layer is 15-30g/m2；The thickness of described release layer is 0.001-0.003mm；
The thickness of described glue layer is 0.003-0.01mm.
Preferably, described texture is ripple glaze, and the crest height of described ripple glaze is 0.25-0.8mm, adjacent two crests
Between distance be 0.25-5mm.
Second object of the present invention realizes by the following technical solutions:
The processing technology of a kind of embossing release film, comprises the following steps:
(1) leaching membrane layer coating is prepared；
Be 1-1) 1:(1-2 by mass ratio) high density polyethylene (HDPE) and Low Density Polyethylene mixing, stir, obtain the
One compound；
1-2) described first compound is carried out adding heat fusing, obtain the second compound；
1-3) described second mixture is carried out mixing, obtain the 3rd compound；
1-4) under conditions of pressure 5Mpa-20Mpa, described 3rd compound is heated further, obtains the 4th
Compound；
1-5) described 4th compound is incubated, obtains described leaching membrane layer coating；
(2) select substrate layer material, and described substrate layer material is carried out sided corona treatment；
(3) step (1) is obtained leaching membrane layer coating extrusion, and with the substrate layer material after step (2) sided corona treatment
Material carries out stacking under the effect of running roller and is combined, and obtains including the first semi-finished product of substrate layer and leaching membrane layer；The table of described running roller
Face is provided with the first texture so that the surface of described leaching membrane layer is formed with second texture corresponding with described first texture；
(4) described first semi-finished product are cooled to 12-20 DEG C, obtain the second semi-finished product；
(5) on the leaching membrane layer of described second semi-finished product, it is coated with release layer, obtains described embossing release film.
It should be noted that step 1-1) in high density polyethylene (HDPE) (HDPE) be a kind of degree of crystallinity heat high, nonpolar
Plastic resin, it is nontoxic, tasteless, odorless, and fusing point is about 130 DEG C, and relative density is 0.941-0.960g/cm3；Low density polyethylene
Alkene (LDPE) is a kind of copolymer through high pressure or low-pressure polymerization, nontoxic, tasteless, odorless, and density is less than 0.926g/cm3；
And density range is at 0.926-0.940g/cm3Belong to medium density polyethylene (MDPE).
Preferably, step 1-2) in, the temperature adding heat fusing is 190 DEG C-240 DEG C；Step 1-3) in, melting temperature is
250-300 DEG C, the time is 2-6s；Step 1-4) in, heating-up temperature is 310-350 DEG C；Step 1-5) in, holding temperature is 320-
360 DEG C, the time is 10-30s；In step (2), the transporting velocity of substrate layer material is 100m/min, and corona discharge power is 3-
3.5kw；In step (3), the pressure that described leaching membrane layer coating is combined with described substrate layer material stacking is 4-6kg/cm2。
Preferably, in step (2), before carrying out sided corona treatment, coating technique is also included, at the table of described substrate layer material
Face glue coating so that be formed with glue layer on described substrate layer, the thickness of described glue layer is 0.003-0.01mm.
Preferably, in step (5), described release layer is polysiloxane layer；On described leaching membrane layer, coating is poly-organic
After siloxanes, carry out heat cure or ultra-violet curing.
Preferably, the coating method of described release layer is web coatable mode or micro-plate gravure coating method；Described poly-organic
Siloxanes includes solvent-borne type silicone oil and no-solvent type silicone oil；After described leaching membrane layer is coated with polysiloxane, when carrying out heat
During solidification, controlling solidification temperature and be 100-115 DEG C, hardening time is 8-20s；When carrying out ultra-violet curing, control ultraviolet
Luminous flux be 1.5-9mj/cm2, irradiation time is 1.5-3s.
It should be noted that the polysiloxane of release layer can use the polymethyl siloxane of addition type, such as
Solvent-borne type silicone oil, if what outer light light transmission did not require, it is possible to select solvent-free silicon oil.But when being coated with solvent-free silicon oil,
Have certain mist degree impact.Though but use what type of polysiloxane, will note controlling baking oven when solidification
Temperature, the texture of leaching membrane layer should be made will not to deform because of the impact of temperature, polysiloxane to be reached
Solidification temperature.Simultaneously, it should getting hold of the viscosity number (CPS value) of polysiloxane, CPS value is deep with the texture on leaching membrane layer
Shallow, streakline is spaced relevant, it is however generally that, stricture of vagina is deep and close, and CPS value to reduce.After polysiloxane is coated on leaching membrane layer,
Irradiated by heating or ultraviolet, build bridge and solidify.
Compared to existing technology, the beneficial effects of the present invention is:
(1) embossing release film provided by the present invention, simple in construction, embossing are clear, the depth is unified, distributing line is uniform, one-tenth
Quality is good；This embossing release film can be made all kinds of pressure sensitive adhesive tape, when these pressure sensitive adhesive tapes are attached on object,
The gas produced because of variations in temperature be can effectively get rid of, good attachment laminating effect and good radiating effect reached, full
Foot automobile and the requirement of electron trade.I.e. obtained pressure sensitive adhesive tape performance is good, simultaneously good looking appearance, easy to use.
(2) processing technology of embossing release film provided by the present invention, when being coated with leaching membrane layer, in order to overcome substrate surface
The unstability of energy, first carries out gluing and sided corona treatment, thus adds the contact surface of base material, improve base material base material
Surface tension, improves the adhesive force of leaching membrane layer so that substrate layer and leaching membrane layer are not readily separated, and fits effective.And substrate layer
The transporting velocity of material is 100m/min, and corona discharge power is at 3-3.5kw, and corona discharge power is too low, surface tension can be caused not enough, mistake
Height easily punctures substrate layer material, under the conditions of this, it is possible to make substrate layer obtain good performance.
(3) processing technology of embossing release film provided by the present invention, uses web coatable mode or nick version coating side
Formula carries out the coating of release layer so that the Painting effect of release layer is good, and thickness is uniform, and can reach with carrying veined leaching membrane layer
To fitting well.During solidification, heat cure or ultra-violet curing can be used, when using ultra-violet curing, it is not necessary to strictly hold photograph
Penetrate the time, and deformation is less likely to occur the texture of leaching membrane layer, and polysiloxane also is able to reach solidification temperature；It addition, it is purple
Outer photocuring energy consumption is low, and the deformation of film is little.When solvent-free silicon oil and ultra-violet curing are combined, it is possible to reach clean without dirty
The effect of dye, meets green, low-carbon (LC), energy-conservation requirement.
Accompanying drawing explanation
The structural representation of the embossing release film that Fig. 1 is provided by the embodiment of the present invention；
In figure: 10, substrate layer；20, leaching membrane layer；30, release layer；40, glue layer.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, the present invention is described further:
As it is shown in figure 1, a kind of embossing release film, including substrate layer 10, leaching membrane layer 20 and release layer 30；Leaching membrane layer 20 is arranged
On substrate layer 10, the surface of leaching membrane layer 20 is formed with texture；Release layer 30 is arranged on leaching membrane layer 20, and with described texture
Association closes.
So that the adhesion effect of substrate layer 10 and leaching membrane layer 20 is more preferable, can be between substrate layer 10 and leaching membrane layer 20
Glue layer 40 is set；The lower surface of glue layer 40 is fitted with substrate layer 10, and its upper surface is fitted with leaching membrane layer 20.Glue layer 40 can
To be formed by dry-type composite glue water, its thickness could be arranged to 0.003-0.01mm.But, glue layer 40 can also take other
The glue of type is formed, and its thickness is also not necessarily limited to above-mentioned value, can carry out suitable adjustment according to practical situation.
Substrate layer 10 can select multiple material, generally thin film material, can include BOPP thin film, PP thin film,
PE thin film and PET film.
And leaching membrane layer 20 is polyethylene layer, for high density polyethylene (HDPE) and the mixture of Low Density Polyethylene.Leaching membrane layer 20 is also
It can be polypropylene layer.The coating weight of leaching membrane layer 20 could be arranged to 15-30g/m2；Texture on leaching membrane layer 20 could be arranged to
Ripple glaze, the crest height of described ripple glaze could be arranged to 0.25-0.8mm, and the distance between adjacent two crests can set
It is set to 0.25-5mm.But, the concrete structure of described ripple glaze may also take on other forms, between its crest height, crest
Distance is not limited to above-mentioned value, suitably can adjust according to practical situation.Set it addition, texture may be arranged as other types
Put mode, such as twill, reticulate pattern, cross pattern, stone pattern, Fructus Litchi stricture of vagina, snake, crocodile stricture of vagina etc..
It addition, release layer 30 is polysiloxane layer, solvent-borne type silicone oil and no-solvent type silicone oil can be included；Release layer
Thickness could be arranged to 0.001-0.003mm, but its thickness is not limited to above-mentioned value, suitably can adjust according to practical situation
Whole.
The processing technology of a kind of embossing release film, may comprise steps of:
(1) leaching membrane layer coating is prepared；Be 1:(1-2 by mass ratio) high density polyethylene (HDPE) and Low Density Polyethylene mixing,
Stir, obtain the first compound；Carry out adding heat fusing at 190 DEG C-240 DEG C by described first compound, obtain second
Compound；Described second mixture is carried out mixing at 250-300 DEG C, obtains the 3rd compound；At pressure 5Mpa-20Mpa
Under conditions of, described 3rd compound is heated further, heating-up temperature is 310-350 DEG C, obtains the 4th compound；Right
Described 4th compound is incubated at 320-360 DEG C, obtains described leaching membrane layer coating；
(2) select substrate layer material, and described substrate layer material is carried out sided corona treatment, the transporting velocity of substrate layer material
For 100m/min, corona discharge power is 3-3.5kw；
(3) step (1) is obtained leaching membrane layer coating extrusion, and with the substrate layer material after step (2) sided corona treatment
Material carries out stacking under the effect of running roller and is combined, and the pressure that stacking is combined is 4-6kg/cm2, obtain including substrate layer and leaching membrane layer
The first semi-finished product；The surface configuration of described running roller has the first texture so that the surface of described leaching membrane layer is formed and described
The second texture that one texture is corresponding；
(4) described first semi-finished product are cooled to 12-20 DEG C, obtain the second semi-finished product；
(5) on the leaching membrane layer of described second semi-finished product, it is coated with release layer, obtains described embossing release film.
Preferably, in step (2), before carrying out sided corona treatment, coating technique is also included, at the table of described substrate layer material
Face glue coating so that be formed with glue layer on described substrate layer, the thickness of described glue layer is 0.003-0.01mm.
Preferably, in step (5), the coating method of described release layer is web coatable mode or micro-plate gravure coating method；
Described release layer is polysiloxane layer, and polysiloxane includes solvent-borne type silicone oil and no-solvent type silicone oil；In described pouring
After being coated with polysiloxane on film layer, carrying out heat cure or ultra-violet curing, when carrying out heat cure, controlling solidification temperature is
100-115 DEG C, hardening time is 8-20s；When carrying out ultra-violet curing, the luminous flux controlling ultraviolet is 1.5-9mj/cm2,
Irradiation time is 1.5-3s.
It should be noted that in above-mentioned steps (1 5), involved design parameter is not limited to cited concrete
Value, actual setting value suitably can adjust according to practical situation.
Embodiment 1
The processing technology of a kind of embossing release film, comprises the following steps:
(1) leaching membrane layer coating is prepared
The high density polyethylene (HDPE) that mass ratio is 1:1 is put into stirring container with Low Density Polyethylene, is stirred, to filling
Divide mix homogeneously, obtain the first compound；First compound is dried so that it is be substantially free of moisture, then mixes first
Closing material to be sent in the screw rod of extruder by the charging aperture of film machine extrusion system, carry out adding heat fusing subsequently, heating-up temperature is
190 DEG C so that the first compound reaches fully to build bridge, beneficially strand link, obtain the second compound；Then, second mix
Closing material and carry out mixing on screw rod, melting temperature is 300 DEG C, obtains the 3rd compound；Under conditions of pressure is 5Mpa, to
Three compounds heat further, and heating-up temperature is 310 DEG C, obtain flow-like the 4th compound dissolved；4th compound
Extruding from the outlet of screw rod after filtration, the 4th compound is incubated by die head, and holding temperature is 320 DEG C, obtains leaching membrane layer and is coated with
Material.
(2) substrate layer material is carried out pre-treatment
Selecting PET film as base material, PET film put to film machine is unreeled on platform, PET film is drawn by deflector roll
Entering, and apply some tension, the size of tension force selects according to the thickness of base material, not allow substrate deformation and to be dithered as balance
Point.During introducing, in order to overcome the instability of substrate surface energy, to improve the adhesion effect of leaching membrane layer and substrate layer, make
Leaching membrane layer is not readily separated with base material interlayer, is sequentially added into applying glue operation and sided corona treatment operation, and the glue executed is dry-type composite glue
Water, needs after applying glue to solidify glue.When carrying out sided corona treatment, the transporting velocity of PET film is 100m/min, corona
Power be 3kw.
(3) stacking composite base sheet material layers and leaching membrane layer
PET film, after above-mentioned process, is subsequently introduced into band cooling system and surface is carved on veined running roller, with
Time, melted leaching membrane layer coating is that cloth-like flows down, and the leaching membrane layer coating flowed down and PET film carry out multiple under the effect of running roller
Closing, composite pressure is 4kg/cm2, it is rapidly cooled to 30 DEG C subsequently, obtains including the first semi-finished product of substrate layer and leaching membrane layer, and
Texture it is formed with on leaching membrane layer；First semi-finished product continue to move under the drive of deflector roll and are cooled to 12-20 DEG C, chilling temperature with
After rolling, adhesion is principle, obtains the second semi-finished product, then the second semi-finished product is carried out trimming, rolling, packaging.
(4) coating release layer
Second semi-finished product being contained in coating machine and unreels on platform, carry out the coating of release layer, the material selection of release layer is without molten
Dosage form silicone oil；Utilize web coatable mode to be coated on the leaching membrane layer of the second semi-finished product by no-solvent type silicone oil, carry out purple subsequently
Outer solidification, the luminous flux controlling ultraviolet light is 6mj/cm2, after no-solvent type silicon oil solidifying, carry out cooling and plate, treat that product recovers
During to room temperature, carry out rolling, obtain final embossing release film.
Embodiment 2
The processing technology of a kind of embossing release film, comprises the following steps:
(1) leaching membrane layer coating is prepared
The high density polyethylene (HDPE) that mass ratio is 1:2 is put into stirring container with Low Density Polyethylene, is stirred, to filling
Divide mix homogeneously, obtain the first compound；First compound is dried so that it is be substantially free of moisture, then mixes first
Closing material to be sent in the screw rod of extruder by the charging aperture of film machine extrusion system, carry out adding heat fusing subsequently, heating-up temperature is
240 DEG C, obtain the second compound；Then, the second compound carries out mixing on screw rod, and melting temperature is 250 DEG C, obtains the 3rd
Compound；Under conditions of pressure is 15Mpa, heating the 3rd compound further, heating-up temperature is 330 DEG C, obtains
Flow-like the 4th compound dissolved；4th compound is extruded from the outlet of screw rod after filtering, and the 4th compound is carried out by die head
Insulation, holding temperature is 360 DEG C, obtains leaching membrane layer coating.
(2) substrate layer material is carried out pre-treatment
Selecting PP thin film as base material, put by PP thin film to film machine unreels on platform, is introduced by PP thin film by deflector roll,
And applying some tension, the size of tension force selects according to the thickness of base material, not allow substrate deformation and to be dithered as equilibrium point.
During introducing, adding sided corona treatment operation, when carrying out sided corona treatment, the transporting velocity of PET film is 100m/min, electricity
Dizzy power is 3.5kw.
(3) stacking composite base sheet material layers and leaching membrane layer
PP thin film, after above-mentioned process, is subsequently introduced into band cooling system and surface is carved on veined running roller, meanwhile,
Melted leaching membrane layer coating is that cloth-like flows down, and the leaching membrane layer coating flowed down is combined under the effect of running roller with PP thin film, multiple
Resultant pressure is 5kg/cm2, it is rapidly cooled to 20 DEG C subsequently, obtains including the first semi-finished product of substrate layer and leaching membrane layer, and film
Texture it is formed with on Ceng；First semi-finished product continue to move under the drive of deflector roll and are cooled to 12-20 DEG C, and chilling temperature is with rolling
Rear adhesion is principle, obtains the second semi-finished product, then the second semi-finished product is carried out trimming, rolling, packaging.
(4) coating release layer
Second semi-finished product are contained in coating machine and unreel on platform, carry out the coating of release layer, the material selection solvent of release layer
Type silicone oil；Utilize micro-plate gravure coating method to be coated on the leaching membrane layer of the second semi-finished product by no-solvent type silicone oil, carry out purple subsequently
Outer solidification, the luminous flux controlling ultraviolet light is 1.5mj/cm2, after solvent-borne type silicon oil solidifying, carry out cooling and plate, treat that product recovers
During to room temperature, carry out rolling, obtain final embossing release film.
Embodiment 3
The processing technology of a kind of embossing release film, comprises the following steps:
(1) leaching membrane layer coating is prepared
The high density polyethylene (HDPE) that mass ratio is 1:1.5 is put into stirring container with Low Density Polyethylene, is stirred, extremely
It is sufficiently mixed uniformly, obtains the first compound；First compound is dried so that it is be substantially free of moisture, then first
Compound is sent in the screw rod of extruder by the charging aperture of film machine extrusion system, carries out adding heat fusing, heating-up temperature subsequently
It is 220 DEG C so that the first compound reaches fully to build bridge, beneficially strand link, obtain the second compound；Then, second
Compound carries out mixing on screw rod, and melting temperature is 280 DEG C, obtains the 3rd compound；Under conditions of pressure is 20Mpa,
Heating the 3rd compound further, heating-up temperature is 320 DEG C, obtains flow-like the 4th compound dissolved；4th mixes
Closing after material filters and extrude from the outlet of screw rod, the 4th compound is incubated by die head, and holding temperature is 350 DEG C, obtains film
Coating.
(2) substrate layer material is carried out pre-treatment
Selecting BOPP thin film as base material, put by BOPP thin film to film machine unreels on platform, by deflector roll, BOPP is thin
Film introduces, and applies some tension, and the size of tension force selects according to the thickness of base material, not allow substrate deformation and to be dithered as
Equilibrium point.During introducing, being sequentially added into applying glue operation and sided corona treatment operation, the glue executed is dry-type composite glue water, executes
Need after glue glue is solidified.When carrying out sided corona treatment, the transporting velocity of BOPP thin film is 100m/min, the merit of corona
Rate is 3.3kw.
(3) stacking composite base sheet material layers and leaching membrane layer
BOPP thin film, after above-mentioned process, is subsequently introduced into band cooling system and surface is carved on veined running roller, with
Time, melted leaching membrane layer coating is that cloth-like flows down, and the leaching membrane layer coating flowed down and BOPP thin film carry out multiple under the effect of running roller
Closing, composite pressure is 5kg/cm2, it is rapidly cooled to 35 DEG C subsequently, obtains including the first semi-finished product of substrate layer and leaching membrane layer, and
Texture it is formed with on leaching membrane layer；First semi-finished product continue to move under the drive of deflector roll and are cooled to 12-20 DEG C, chilling temperature with
After rolling, adhesion is principle, obtains the second semi-finished product, then the second semi-finished product is carried out trimming, rolling, packaging.
(4) coating release layer
Second semi-finished product being contained in coating machine and unreels on platform, carry out the coating of release layer, the material selection of release layer is without molten
Dosage form silicone oil；Utilize web coatable mode to be coated on the leaching membrane layer of the second semi-finished product by no-solvent type silicone oil, carry out heat subsequently
Solidification, controls solidification temperature and is 100-115 DEG C, after no-solvent type silicon oil solidifying, carries out cooling and plates, treats that product recovers to room temperature
Time, carry out rolling, obtain final embossing release film.
Performance test
Embossing release film embodiment 1-3 prepared is processed into corresponding label tape, heat conduction adhesive tape and conduction respectively
Adhesive tape, meanwhile, takes label tape on the market, heat conduction adhesive tape and conductive tape, and these adhesive tape stickings to thermal objects (is sent out
Hot temperature up to 50 DEG C) surface on, after the fever time of 100h, their correlated performance is tested, test
Result see table 1.
The performance pair of adhesive tape prepared by the common mould release membrance of adhesive tape and market of the embossing release film preparation of table 1 embodiment 1-3
According to log
Note: utilize adhesive tape and the utilization glue that on the market prepared by common mould release membrance of the embossing release film preparation of embodiment 1-3
The adhesive that band is used is adhesive of the same race
Can be seen that from the data of table 1, utilize the label tape prepared by embossing release film of embodiment 1-3, conductive tape
With heat conduction adhesive tape, its performance is superior to label tape on the market, conductive tape and heat conduction adhesive tape.This demonstrating, the present invention is real
Executing example and arrange texture on leaching membrane layer, texture makes product in use be difficult to occur foaming phenomena, and the present invention implements
Example carries out material, technological parameter and operating procedure the collocation being suitable for, and defines workable, flow process and simply makes work
Skill.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various
Corresponding change and deformation, and all these change and deformation all should belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. an embossing release film, it is characterised in that include substrate layer, leaching membrane layer and release layer；Described leaching membrane layer is arranged on institute
Stating on substrate layer, the surface of described leaching membrane layer is formed with texture；Described release layer is arranged on described leaching membrane layer, and with described stricture of vagina
Reason coupling laminating.
Embossing release film the most according to claim 1, it is characterised in that also include glue layer；Described glue layer is arranged on
Between described substrate layer and described leaching membrane layer；The lower surface of described glue layer is fitted with described substrate layer, and its upper surface is with described
Leaching membrane layer is fitted.
Embossing release film the most according to claim 2, it is characterised in that described substrate layer is BOPP thin film, PP thin film, PE
Thin film or PET film；Described leaching membrane layer is polyethylene layer or polypropylene layer；Described release layer is polysiloxane layer；Described
Glue layer is dry-type composite glue water layer.
Embossing release film the most according to claim 2, it is characterised in that the coating weight of described leaching membrane layer is 15-30g/m2；
The thickness of described release layer is 0.001-0.003mm；The thickness of described glue layer is 0.003-0.01mm.
Embossing release film the most according to claim 1, it is characterised in that described texture is ripple glaze, described ripple glaze
Crest height is 0.25-0.8mm, and the distance between adjacent two crests is 0.25-5mm.
6. the processing technology of the embossing release film as described in claim 1-5 any one, it is characterised in that include following
Step:
(1) leaching membrane layer coating is prepared；
Be 1-1) 1:(1-2 by mass ratio) high density polyethylene (HDPE) and Low Density Polyethylene mixing, stir, obtain first and mix
Close material；
1-2) described first compound is carried out adding heat fusing, obtain the second compound；
1-3) described second mixture is carried out mixing, obtain the 3rd compound；
1-4) under conditions of pressure 5Mpa-20Mpa, described 3rd compound is heated further, obtains the 4th mixing
Material；
1-5) described 4th compound is incubated, obtains described leaching membrane layer coating；
(2) select substrate layer material, and described substrate layer material is carried out sided corona treatment；
(3) leaching membrane layer coating extrusion step (1) obtained, and exist with the substrate layer material after step (2) sided corona treatment
Carry out stacking under the effect of running roller to be combined, obtain including the first semi-finished product of substrate layer and leaching membrane layer；The surface of described running roller sets
It is equipped with the first texture so that the surface of described leaching membrane layer is formed with second texture corresponding with described first texture；
(4) described first semi-finished product are cooled to 12-20 DEG C, obtain the second semi-finished product；
(5) on the leaching membrane layer of described second semi-finished product, it is coated with release layer, obtains described embossing release film.
The processing technology of embossing release film the most according to claim 6, it is characterised in that step 1-2) in, add heat fusing
Temperature be 190 DEG C-240 DEG C；Step 1-3) in, melting temperature is 250-300 DEG C, and the time is 2-6s；Step 1-4) in, heating
Temperature is 310-350 DEG C；Step 1-5) in, holding temperature is 320-360 DEG C, and the time is 10-30s；In step (2), substrate layer
The transporting velocity of material is 100m/min, and corona discharge power is 3-3.5kw；In step (3), described leaching membrane layer coating and described base material
The pressure that layer material stacking is combined is 4-6kg/cm2。
The processing technology of embossing release film the most according to claim 6, it is characterised in that in step (2), is carrying out corona
Before process, also include coating technique, at the surface glue coating of described substrate layer material so that be formed with glue on described substrate layer
Water layer, the thickness of described glue layer is 0.003-0.01mm.
The processing technology of embossing release film the most according to claim 6, it is characterised in that in step (5), described release layer
For polysiloxane layer；After described leaching membrane layer is coated with polysiloxane, carry out heat cure or ultra-violet curing.
The processing technology of embossing release film the most according to claim 9, it is characterised in that the coating side of described release layer
Formula is web coatable mode or micro-plate gravure coating method；Described polysiloxane includes solvent-borne type silicone oil and no-solvent type silicon
Oil；After described leaching membrane layer is coated with polysiloxane, when carrying out heat cure, control solidification temperature and be 100-115 DEG C, Gu
The change time is 8-20s；When carrying out ultra-violet curing, the luminous flux controlling ultraviolet is 1.5-9mj/cm2, irradiation time is
1.5-3s。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107570393A (en) * | 2017-07-19 | 2018-01-12 | 深圳市佰瑞兴实业有限公司 | A kind of coating process of reticulate pattern PET silicone release films |
| CN107722323A (en) * | 2017-10-20 | 2018-02-23 | 广州林云木新材料有限公司 | Synthetic leather production mould release membrance and preparation method thereof |
| CN108047985A (en) * | 2017-12-11 | 2018-05-18 | 新纶科技（常州）有限公司 | A kind of special ultralight release films of OCA |
| CN108790305A (en) * | 2017-05-05 | 2018-11-13 | 松本涂层科技（昆山）有限公司 | A kind of grid paper and its manufacturing process |
| CN113752585A (en) * | 2021-08-23 | 2021-12-07 | 苏州市和好塑业有限公司 | Direct-spraying PP (propene Polymer) process for reducing glue layer of plastic box |
| CN114507487A (en) * | 2022-02-15 | 2022-05-17 | 江苏斯迪克新材料科技股份有限公司 | Non-silicon release material, non-silicon release film and preparation method thereof |
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| CN104924638A (en) * | 2015-04-27 | 2015-09-23 | 苏州斯迪克新材料科技股份有限公司 | Technique for manufacturing embossed base material film for release film |
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| CN104924638A (en) * | 2015-04-27 | 2015-09-23 | 苏州斯迪克新材料科技股份有限公司 | Technique for manufacturing embossed base material film for release film |
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| CN108790305A (en) * | 2017-05-05 | 2018-11-13 | 松本涂层科技（昆山）有限公司 | A kind of grid paper and its manufacturing process |
| CN107570393A (en) * | 2017-07-19 | 2018-01-12 | 深圳市佰瑞兴实业有限公司 | A kind of coating process of reticulate pattern PET silicone release films |
| CN107722323A (en) * | 2017-10-20 | 2018-02-23 | 广州林云木新材料有限公司 | Synthetic leather production mould release membrance and preparation method thereof |
| CN108047985A (en) * | 2017-12-11 | 2018-05-18 | 新纶科技（常州）有限公司 | A kind of special ultralight release films of OCA |
| CN113752585A (en) * | 2021-08-23 | 2021-12-07 | 苏州市和好塑业有限公司 | Direct-spraying PP (propene Polymer) process for reducing glue layer of plastic box |
| CN114507487A (en) * | 2022-02-15 | 2022-05-17 | 江苏斯迪克新材料科技股份有限公司 | Non-silicon release material, non-silicon release film and preparation method thereof |
| CN114670462A (en) * | 2022-05-30 | 2022-06-28 | 江苏美亚科泽过滤技术有限公司 | Electrostatic dust removal corrugated core and forming method thereof |
| CN115746725A (en) * | 2022-11-25 | 2023-03-07 | 浙江道明新材料有限公司 | High-dimensional-stability polyolefin release film and manufacturing method thereof |
| CN116200137A (en) * | 2022-12-30 | 2023-06-02 | 苏州赛伍应用技术股份有限公司 | Heat-conducting exhaust adhesive tape and preparation method thereof |
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