TWI233446B - Plastic release liner and its making method - Google Patents

Abstract

Plastic release liner and the method for manufacturing the plastic release liner, at least one layer material of the release liner is impressed and the plastic release liner is constructed either single layer or multiple layer in structure. At least one side of the plastic release liner is coated with a release agent. The plastic release liner is characterized of easy tearing and there is no fiber-like and no debris left behind after it is torn.

Description

1233446 fix

J No. 921245% V. Description of the invention (1) [Technical field to which the invention belongs] The present invention provides a method for producing a release film, which mainly includes a 'adhesive layer on one side and a sticker, and a double' type film. The adhesive used in combination with the viscose surface is: a designer who has good tear properties and tears raw edges and debris. + «Seat [Previous technology] r At present, various types of tapes, labels or stickers are generally used (and adheSlve tapes' labels 〇r, often combined with one, and one of the adhesive surfaces that temporarily protects its adhesive is released. Base material (Reiease Hwr) ^ Release paper (Release Nim)), so that the adhesive surface of the adhesive edge is not contaminated and loses its properties before bonding to the object. At least one side of the surface is coated with a release agent to provide a low surface energy. When the adhesive is in contact with the release surface, the release interface provides a main function: [1] Provides temporary protection of the adhesion of the adhesive surface. Features and freedom from external contamination and loss of adhesive properties; [2] 胄 Adjacent adhesive can be easily peeled or removed when peeling from the release surface, without damaging the physical properties of the treasure. Traditional bonding tapes, self-adhesive labels (Self_adhesive Ubei / stock) or stickers are many types of reUase Hner materials. For example, most countries in North America use super calendered Kraft paper, and European countries use gl ass ine. paper) is Main countries, Asian countries such as the Republic of China, Japan and other coastal countries mostly use single-sided or double-sided plastic coated kraft paper because of high environmental humidity. As for other commonly used non-hygroscopic plastic films, they are used as release substrates. Due to its high water resistance, such as polyethylene (pE), polypropylene

INVENT20030814PI27.ptc Page 6 1233446 V. Description of the invention (2) Λ_3 said to amend LTst ·! R! S! M (PET) '20 03 global 1 needle: $ Releasing substrate has also gradually been used in large numbers in modern times. .. The table shows that all the release substrates with plastic film as a beautiful material in the release substrate M + have reached 12% of the total demand and the results are: return, the release film required paper has been used for a long time. Habits ^ ::, it is easy to tear off using Bugugans M,.'S substrate, adhesive tape or writable self-adhesive = easy-to-tear tape, such as double-sided tissue paper, need to use double-sided tape length "tear ;: Therefore, ^ == is often accompanied by fiber fragmentation II: = II; biochemical dust r is a technology and electronic product, and at this time, the fiber medicine industry or the dust-free environment requires that the industry = or :, plastic material " Release film for the substrate 'common selection: such as Mara poly: film = = POLYSTER FLLM (PET), biaxial extension, release film made of (ΒΟΡΡ) and polyethylene CPE), etc. When the plastic film is used as a release film, although it is usually used with polyacetic acid, there is a concern that the edge will fall, and it will not be accompanied by J = when the paper is peeled off = the plastic film has a higher Tear = ::: Not easy to dye :::; The blade is specially used for cutting tools, which is not only troublesome, but often needs to be purchased separately: knife cutting, which makes the use of tape not convenient. Make: Go to the cutter which has to be extra cost to buy the tape. What's more, it is more flexible in nature and can be easily made by two = 〇 〇ngat ^ _charl! L! L ^ i ^ such as polyethylene blown film (he INVENT20030814PI27.ptc page 7 1233446 ---- case No. 921245% _- 5. Description of the invention (3) When the film is released due to high elongation, it will be extremely rough when it is torn. It will affect the operation of the tape and solve the above problems. Provide a moldable agent A release film coated on the easily tearable substrate with a single release property, a single-sided separation from the adhesive surface of a sticker, a roll-type application of a double-sided tape, and a chip removal method prepared by the present invention , Dust-free clean room is available, a high release paper is not easy to recycle pressure application requirements, in addition, there are many changes in its size and appearance, such as paper substrate release paper is easy to wear due to the poor drying cycle t, in addition to the Mingzhi's easy-to-remove plastic release film material is obtained from the natural resources of the forest, and another release is of higher quality and stability, and can reduce the area that lacks natural forest resources for environmental forest planting. Film coating to slow coating with original release paper Type substrate having a thickness distribution are higher than the paper, the process speed can dramatically increase naturally greatly reduced.

The essential characteristics, except for the fractured section which is not easy to tear and strong and uneven, are practically disturbing and unsightly. According to the present invention, the release film on the easy-to-tear plastic substrate is formed on the release surface or both sides into a single-sided or double-sided film, which can be used in combination with a self-adhesive label biting release film, which can be combined with tearability ^ k ) Or sheet stackable (sheet tearable release film, in addition to easy tearing under unusual use environment can also be replaced by manufacturing, reducing the environmental advantages of release paper due to the release paper, such as the thickness of the release film compared with Not affected by environmental temperature and humidity, warp defects caused by the environment, and countries with processes that are too lacking in paper raw materials, the method of hair distribution is not limited to the provision of paper raw materials, which is much lower than the cost of release paper and substrates Opportunities for alternative application selection, not only the damaging pressure of the demand for recycling, but also the equipment that can be used to coat hardware equipment and provide a very alternative product release agent, and even more, due to release Film hook characteristics, and the material itself has a high yield, and the production cost is 1233446

How to prepare a substrate for an easily peelable film, many rolling techniques can be used, including: providing a substrate film layer; and a process of rolling the substrate film layer to form the substrate film layer The plurality of gaps ^ can be determined by controlling the number, shape, distribution density, distribution position, thickness of the substrate film, and material of the substrate film on the substrate film layer. The pressing process includes comprehensive rolling or regional selective rolling). The processing equipment required in the rolling process can be a continuous pair of rollers or a batch of two-press platform group ', especially under the need of automated process. They are more economical and profitable, in which the surface of one wheel or one flat wheel of the pressing wheel group or the pressing platform group has a plurality of spiky structures (not shown in the figure). The sharp ^ structure of this surface can be borrowed. It is prepared by the following methods: wlre brush or needle roller (needle r0Uer) with high hardness; (π) polyhedron diamond particles or similar particles with high hardness by electroplating method軚 Material: two (face Λ described regardless of the use of needle wheels, wire Mine diamond wheel, mechanical press type U〇〇llng) machining wheel or the wheel rolling surface of the laser engraved

INVENT20030814PI27.ptc Page 9 IS on the surface; (ffi) Engraving a high-hardness organic, sublime or ceramic material with a laser cutting method to form a rolling surface with a uniform plural spiky structure, such as thunder Ceramics cut from the shot μ 丨 丨 roller wheels (UIV) are mechanically rolled (T〇〇ling) M method, the :: metal surface for hardness is formed into the desired surface uniform sharp structure,: Then apply high temperature tempering, ultrasonic and other methods to apply surface hardening treatment (hardemng treatment) to form the final rolling surface required; the metal surface is chemically electrolytically etched into a uniform convex structure, and then surface hardened to Hard rolling surface. In addition, the material of the pressing wheel or pressing surface corresponding to the rolling wheel may be metal, plastic steel or ceramics with appropriate hardness. 1233446 _ Case No. 92124596 15. Description of the invention (5), this rolling process makes the The release substrate has a plurality of interstitial crack structures. The interstitial structure shape can be various geometrical gaps. Here, according to actual needs, the stabbed film can have the required sealing and ventilation function characteristics and structural design. Among them, you can choose appropriate materials and cooperate with different rolling wheels and rolling mechanisms. An optimal combination can be obtained with the conditions. Here, the gap region of the present invention can also have different design according to actual requirements. Examples can be comprehensive distribution, local regional distribution, regular distribution, or irregularity. Distribution. As for the actual use timing and sealing application mechanism, it depends on factors such as the substrate film material to be processed and processing conditions. In addition, the geometric shapes of the various protrusions on the cusp rolling mechanism used in the present invention can be line segment type, cone type, pyramid type, square pyramid type, evening cone shape, ten-column type, or other types. After pressing and manufacturing, most of the gap structures before returning to the false plane will also have corresponding line segments, circle transitions, pyramids, square pyramids, polygonal pyramids, cross-pillar gap shapes, or other The gap corresponding to the type. As for rolling, due to the low viscoelasticity & ^ 忑 1Γ effect, the large-scale structure on the substrate film structure, most flat rolling structures will be restored, leaving only The structure of the gap material, such as various shapes of cracks or gaps produced by rolling CV steps. Η Η Ϊ Ϊ Coating process of release agent in different application coating processes. The practice is $ 1. Beauty on a plurality of interstitial film substrates @ ^ Γ 上进 仃 a low-extensibility material or a mechanical strength than the original film cover to form a barrier spacer medium ⑻, the method of processing f (At least-on the outer surface of the substrate-ΐ_1 can be coated by caulking for ten times).

1233446 Amendment No. 1 921245 5. Fifth, description of the invention (6) Lamination of film material or hot-melt adhesive coating to make the substrate film with a plurality of gaps on the substrate # a spacer medium ^ rt pressure: after the construction, there are a plurality of gaps of the base film 1 () layer of the composite film i, the release agent is coated on at least one outer surface, the cloth is made, the release agent solution is practically soluble, water-soluble In addition, the more common coating methods of cereals are single or multiple roller coating, gravure, gravure, Mayer bar, coma coa, dipping, Surface coating techniques such as spray coating are used. The solvent drying after the coating section and the release agent film curing curing bridge reaction can be achieved by heating or using radiation (1 ^ (1 "to 〇11 ) To carry out the post chemical bridging reaction (jhemical post curing reaction) project. The former heats and dries the south temperature to dry the solvent-based release agent solution and the aqueous emulsion containing the solvent or water and simultaneously conducts the bridging chemical reaction. The latter is solvent-free. After the release agent solution is applied, it is irradiated with ultraviolet rays (1111: 1 ^ "〇 161: 1 ^ (1 ^ |: 1〇11,1 ^) or electron beam (EB) will be coated on the above substrate and the release agent will directly bridge the reaction and form a low surface energy release film Layer, of which the latter requires very short reaction time with bridging chemistry because there is no high temperature drying solvent after coating. 'Very suitable for heat and temperature sensitive ^ "]" sensitive) plastic release film substrate process, such as lower melting point characteristics The biaxially stretchable polypropylene film (B0PP) will be coated on one or both sides of the substrate with a release agent, and then bridged to form a single-sided or double-masked release film. Release agent coating process. The substrate film is often subjected to a surface treatment before the release agent is applied to improve the adhesion strength of the release agent. The commonly used surface treatment is electricity INVENT20030814PI27.ptc Page 111233446

Corona discharge processing, flame treatment (name treatment), electric paddle discharge (piasma discharge), primer coating (primer coat ing), etching (etching) and other methods, including corona discharge processing (corona discharge processing) ) Is more commonly used.

Application of release paper For areas where forest resources are not abundant, the acquisition cost of paper is relatively high, and the recycling process is also. Because of the high content of various organic and inorganic additives in the paper composition, if you want to self-release when recycling The cost of paper separation is high, and in application practice, & avoid the release paper from being affected by the temperature: humidity and temperature. It is often deformed by the single or police of the release paper substrate. It becomes a release paper with good weather resistance. For example, a melted polyethylene T-type extruder is used for single-sided / ㈣ethylene⑽) coating on the release paper substrate. The negative impact is that such a wide plastic film is not easy to carry out. The separation and recovery after disposal can be used for final treatment by combustion. ·only

Therefore, it is equipped with a release liner which is known to have no substrate or has a substrate that is easy to tear, in order to match the win belt. Combined use, the material used for the release liner is usually paper. The material with fibers and other additives is used to tear the glue ", ^ ,,, and the generation of fibers and debris. Therefore, in a clean room: when there is a tearable tape on February 22nd, the fiber debris generated from the release paper == type moth products> dyeing opportunities, which leads to a decrease in the product process yield, increasing The maintenance burden of the laboratory increases the cost of the process.

INVENT20030814PI27.ptc Page 12 1233446 Case No. 92124596 V. Description of the Invention (8) Therefore, one of the first main objects of the present invention is to provide a release film, whose material system can be selected from, for example, polyterephthalic acid. Polyethylene Terephalate (PET), Polypropylene (PP), Polyethylene Naphthalate (PE1V) and other extensible high-strength plastics, or polymethyl methacrylate ( ^ 0〇11] 61:} 1} ^ | 1] 61 ^ 3 (^ 13., · PMMA) and other plastic films containing uniaxial and biaxially stretchable films can be applied to tearable tapes. Therefore, not only the structural strength is sufficient, It is not easy to break on the package, and can be removed according to the length of any tape that is taken, and the cut surface of the removed tape is also flattened. "It produces broken pieces, which is very suitable for dust-free release films. Tearability. Therefore two: force: manual treatment 'when applied to a tearable tenter belt, # the release film from the release invention. Mouth' easy to easily take the desired tear from the tearing place It's coated with 离 m on the release agent for two kinds of release film manufacturing methods. Easy to tear—using the number of pressing (impressi ο η), the release agent material, and the substrate σ: Quality J: the rolling density, rolling times, molding force are well controlled, and the manufacturing process factors are controlled, It can be used anywhere on the film to protect the adhesive layer, label and adhesive layer with the stress concentration property. The separation ::: is used as a protective film as described above. Ί 作 揭A new form is released ^ ----- 〆, easy to tear, and on page 13 INVENT20030814PI27.ptc 1233446

V. Description of the invention (9) The tearing of the edges will not produce burrs and the environment, the medical environment, and the flocculation of the electronics industry. It can be applied to the high-level release paper in the clean room environment, and the environment, or The general environment, to replace the pressure of the state of the environment, and the damage to the forest from the source of paper = M, MA / c I. The film will not be affected by the change in fishing degree s / when it is used. The material thickness is greater than the processing rate of the finished shirt. For the sake of uniformity, the process is convenient, and the quality is improved. The fourth main feature of the present invention is the release film, which has the characteristics of being made of a plastic substrate, and at the same time maintains the possibility of tearing easily. The five main purposes of transparent, transparent, like / with burrs, fibers, and debris are compared to hair,: 5, which is to provide a release film material selection range (Re ^^ Coatlng) to obtain a single-sided release. Force release film, or a double-sided film coated with a different release force on both sides is suitable for self-drying labels, stickers, and paper, as a protective dispensing surface. 面: Surface: Type film. Release film is applied on both sides. Use I in combination with tape. The first and the main purpose of this month is to provide a release film as a surface coating process with a release agent. It can be used in the existing general processing equipment without the need to add new equipment. At the same time: The material resources of the region, the home is to provide excellent paper [Embodiment] Figure, the first method of production of the release film designed by the present invention, refer to the first production method, the processing steps are taken: ^ a two to single Laminated film (1) or composite laminated film (2) The above substrate is covered by the above-mentioned exhaustion. 1233446 ——-- Yueyue Yuezheng _ 5. Description of the invention αο) " --- Wheel set (3) = the film In the manufacturing process of the layer, the single layer film (1) or the composite layer film (2) forms a plurality of gaps (4) in a preset full or partial area. b. The single-layer film (丨) or composite layer film (2) that has been processed by the photo-pressing process is used as a single-layer release agent (5). Coated or used as a release agent (5) on both sides of the upper and lower positions ) · Smear. C • After that, the single-layer film (1) or composite layer film (2) coated with single-sided release agent (5) or double-sided release agent (5) is subjected to drying or chemical bridging reaction, General emulsified water = After coating with solvent-based release agent solution, you can use a traditional drying box to dry with 1¾ hot air. The air flOating drying system is a newer process, and another solvent-free release agent solution For coating applications, radiation radiation such as ultraviolet light or electron beam reaction (ultraviolet electron beam reactio) is used to cure the release agent (5) and form a film for complete and complete reaction and drying to complete a Base material with easy tearing characteristics (6). / The production method of the second release film of the present invention, refer to the third and fourth drawings, the processing steps of which are taken as follows: "a. Single-layer film (1) or composite film (2) substrate is applied to a single layer The release agent (5) is coated, or the release agent (5) is coated on both sides of the upper and lower positions.

b. The single-layer film (1) or composite layer film (2) coated with single-sided release agent (5) or double-sided release agent (5) is then dried or chemically bridged. After coating the water-based and solvent-based release agent solution, the traditional drying box can be used to dry with circulating hot air. The air flotation drying box is a newer process to bridge chemical reactions, such as ultraviolet light or electron beam irradiation. Ultraviolet 〇r eiectron beam reaction to perform the exact and complete reaction and drying of the release agent (5), and complete a tearable property

INVENT20030814PI27.ptc Page 15 1233446

Manufacture of release substrate (7). c · Single layer film (1) or composite layer film (2) with single-sided release agent (5) or double-sided release agent (5) on the surface layer after drying is completed by rolling against the roller set (3 ) Is processed so that the single-layer film (1) or the composite-layer film (2) forms a plurality of gaps (4) in a preset full or partial area, and according to this, a substrate with easy release (7) is completed. ). The third method for manufacturing the release film of the present invention is shown in Figures 5 and 6. The processing steps are as follows:

a · A single layer film (1) or a composite layer film (2) substrate through a rolling process (3) to process the film layer, using a single layer film (0 or a composite film ( 2) Form a plurality of gaps (4) in the preset full or partial area. B. For the above-mentioned single-layer film (丨) or composite layer film (2) with a plurality of gaps, continue with a single side layer or above The lower part is double-sidedly coated with another gap-filling spacer (8) material to facilitate the post-engineering release agent solution coating and drying manufacturing process. The selection and coating of the gap-filling barrier material The manufacturing methods include: (I) laminating another plastic material. A material with weak mechanical strength such as low-extensibility polyethylene, polypropylene film (PE PP f ilms), and PE / PP multilayer co-extrusion can be selected. Polymer thin film.

(Π) Coating another caulking material, a solution prepared by using organic, inorganic, oxide or mixed formula materials can be selected as the caulking material solution, and the material composition such as a polymer (P 〇1 ymericmateria 1 s ) Such as acrylic resin, styrene butadiene copolymer, polyvinyl acetate, starch and its derivatives containing starch (starch and amyloid

INVENT20030814PI27.ptc S 16 pages and their derivatives (fatty acid and its derivatives), surfactants, etc. The caulk solution can be concave, wire rod (Uayer ^ bar), scraper, dipping, roller ( rol ler), air kni (air kni fe) and other coating methods and drying processes to obtain a spacer (8) layer. (Melon) Hot-melt coating another hot-melt adhesive material, you can use the general hot-melt materials' Shikou plastic polymer materials of polyethylene, polypropylene, hot-melt glue For the mixed use, the process of the easily tearable film of the present invention recommends that a hot melt coating is used to cover a polymer material on a rolled plastic film. The hot melt adhesive is coated on the rolled plastic film before coating. Apply a layer of primer adhesive coating (tie layer anchor coatin) for detailed strength, adhesion strength between layers, corona surface treatment before coating. 4 Depending on the actual needs, the primer adhesive coating agent is single-liquid type or Two-liquid type, commonly used two-liquid type, such as Trl50 / T-122 ethyl acetate solution of Caoda Co., Ltd. Suitable for polyester film (polyester, ρΕΤ), stretch polypropylene (〇ρρ), (n ^ lon) and other films The surface of the material was modified. After drying with a 150-mesh gravure printing wheel, it was connected to a hot-melt adhesive such as polyethylene, polyvinyl acetate, etc., and then coated on top of each other, followed by 40. (: 3 days of bridging ripening reaction . C. Then for the above single-layer film (1) or composite layer film (2) Combined with one or both sides of the spacer medium (8) and coated with a preset one-sided release and double-sided release agent (9). "Or d · Easily, the coated with a single-sided release agent (9) or Double-sided release layer film (1) or composite layer film (2) is subjected to drying or chemical bridging reaction. One = after coating with water-soluble and solvent-based release agent solution, it can be transmitted = pore hot air, air-floating (Airfloating) drying box

INVENT20030814PI27.ptc Page 17 1233446 SS_92L24596 V. Process of the invention description (13) 'Another solvent-free release agent solution is coated with radiation after the coating chemical reaction, such as ultraviolet light irradiation or electron beam irradiation reaction (ravi 〇let 〇r electron beam reaction) to perform the film-forming curing reaction and drying of the release agent (9), and complete the production of a release substrate (10) with easy tearing characteristics. The present invention can be used as a release film base material: 1. polyethylene terephthalate (PET). 2. Biaxially stretched polybifluorene film (biaxiaHyorited Pollypropylene, β〇ρρ). 3. Two high density polyethylene (HDPE) film. 4. Low density polyethylene (LDPE) film. 5. Coextruded polyolefin film. 6. Polystyrene (PolyStyrene, ps). 7 · Polypropylene or polyethylene synthetic paper. In addition, other special release film substrates with characteristics such as high temperature resistance, solvent resistance, acid and alkali resistance are: polyethylene naphthalate (PEN), polyether ether ketone , PEEK), polycarbonate (PC), polyimide (PI), polysulfide one, polyacrylonitrile (PAN), styrene Cyanide copolymer (styrene acrylonitrile, SAN), polyurethane (polyurethane,

PU), nylon, multilayer co-extruded stretch film, multilayer composite film, inorganic plastic film, etc.

INVENT20030814PI27.ptc Page 18 1233446 15. Description of the invention (14) "The release film designed by the present invention has the characteristics of easy tearing and breaking off the Luo film, which has the following advantages: Edges, beams do not produce broken genus 1 .When torn open, the cut edges fall clean and the helmet falls off. The application in the dust-free environment of the electronics industry or hospitals. The import cost is very high. The release film of the present invention; = Home paper is low and the supply is sufficient. Alternative solution: For the first cost / · thickness (thi: Gknees) is easy to control and very uniform in the release film process. 3. The release film has good size, thickness and length stability, which is more affected by humidity. The warping deformation is generally [, the temperature is affected by the temperature and there is a loss of deformation caused by deformation and warp defects. Also ¥ 4. Wet 4. Good flatness, and easy to process. 5. Excellent cutting performance (Die Cuttability). 6. Low cost, non-destructive, eco-friendly. The environmentally friendly material itself can be recycled and reused. 7 · The material can be used in a wide range of temperature resistance and elasticity. 々 Invented by coating on the above single-layer film or composite film. Agent (siliCQne Releage agent) (Poly) Shi Xi :: = Release material of the main structure 'generally provides a release film surface peel force from the lowest release (medium release) to the medium release (medium release) release force. INVENT20030814PI27.ptc page 19 1233446 --- · Han No. 921245% _Year Month Day Amendment_ V. Description of the Invention (15) 2 · Nonsilicone Release Agent (a) Chromium Ion Release Agent (Chrom i um Comp 1 exes), for example, Fluorochemical chromium comp lex 〇b · Long side chain polymer with crystalline, such as polyethylene eight carbon base pressure Polyvinyl Octadecyl carbamates acrylate copolymer 〇c · Fiuorochemical Low adhesion Backside. For example, a branched fluorine-containing polymer compound (f 1 u 〇chem chemica 1 sidechai η P 〇1 ymer) 3. Organically modified Shi Xi Likang release agent (〇rgan〇-㈣ 心 f ie (j silicones) ° 4 · hot melt additives (me 11 additives) release agent. Among them, the various release forces exhibited by the release agent coated on the release substrate are distinguished as follows: (1) The light release force (prime release). Peeling force, 5 ~! 5 g / in. (2) Medium release force or modified release force

Release Systen). Peeling force is between 15 ~ 150g / in. General double-sided tape 1¾ uses a double-sided release substrate with a different release force, which means that both sides of a release film need to be coated with release agents with different release peeling forces. (3) Heavy release. The release force is between 120 g / in and 500 g / in. In addition, the chemical reaction method of drying and bridging the release agent coated on the release substrate is based on the formulation of the main ingredients of different release agents.

1233446 Case No. 92124596 Amendment V. Description of the Invention (16) (plat ium), rhodium or tin catalyst systems differ from the different heating starting reaction methods: (1) condensation reaction The solution use form can be solvent-based or water-emulsified. (2) Addition reaction. The solution can be used in the form of solvent, aqueous emulsion or solventless. (3) Radiation reaction, ultraviolet light and electron beam (ultraviolet and electron beam) are the more common radiation sources. Most of the solutions are solvent-free, and the initial reaction mechanism is divided into: radical reaction Free radical initiated reaction, cationic reaction, ene-thiol, hybrid reaction ion and other methods. The main suppliers of various emulsified, solvent-based and solvent-free silicone release agents solutions on the market are Dow Corning's Sy 1-0ff series release agents, singular silicone release agents GE silicones, Shin-Etsu Silicone Release Agent, Wacker SiHcones, etc. In addition, the coating method of the release film according to the present invention uses different coating process methods according to the use form and viscosity of the release solution used, which are divided as follows: (1) Solvent-based solution-gravure direct coating (Direct Gravure), scraper (Comma coater), dipping (Meyer Bar) (2) Aqueous solution-gravure, scratching, grabbing / shape ~ beech, dipping, gas Air Knife and Meyer Bar Page 21 INVENT20030814PI27.ptc 1233446 Case No. 92124596 V. Description of the invention (17) (3) Solvent-free solution for one or five rounds of coating (5 r 0 η c 〇ater) Offset Gravure Coater. [First Example] Take KB0PP / AC / P £ film and KPET / AC / PE film two release film substrates, and use Shin-Etsu Solvent Silicone Release Agent KS -3703 / KS-380 0 toluene as the solvent, mix it at a ratio of 1: 1, add 2 ° / 〇CAT-PL-50T platinum catalyst, and paint the prepared release agent toluene solution with a wire rod No. 8 respectively. It is placed on the PE coating surface, KB0PP and KPET surfaces of the above release film substrate, and the coating surface is inside the corona area, and the phase is dried by hot air for 1 minute at 0 0 C for curing and drying conditions of the release agent. , Shi Xili Kang Tuli is 0.8 g / m square 'placed in the relative calendar 历% and 2 5'ο. After one day in the environment, use a one-inch wide Tesa7475 tape to stick to the release agent coating surface. Use a double-sided tape to stick the non-release agent coating surface of the release film to a stainless steel sheet, and weigh 2 kg The rubber wheel was rolled over and rolled twice, and under the condition of X 20 g / m square pressing, the peeling force was measured after 0, 7 and 7 days, and the universal tensile tester 180 was used. Peeling angle and peeling speed U p, Zhong 'recorded its peeling force (g / 忖) size', and at 18 ° ^ peeling speed 12 inches / minute from the edge of the release film, the peeling angle of the peeling force ( G / inch), as shown in the table below. 〖,,, have recorded

1233446 Case No. 92124596 Amendment V. Description of the invention (18) [Table 1] Peeling force and release force of different release substrates made of solvent-based silicone film under different conditions Number of days 0 days peeling force / tearing force [g / leaf] 1 day peeling force / tearing force [gram] 7 days peeling force / tearing force [gram / leaf] KBOPP / AOPE shower film / release agent 11 / 33 14/33 8/33 KPET / ΑΟΡΕ coating / release agent m \ 15/42 9/42 ΡΕ coating / AC / KBOT / off · 16/33 15/33 11/33 PE coating / AC / KPET / Releasing Agent 21/42 19/42 15/42 KBOPP / AC / PE coating represents 25μπι rolled double-sleeve ^ stretch polypropylene film / 5μηι ACIfc coating layer / 25μητ molten polyethylene coating. KPET / AC7PE coating represents 25μτη rolled biaxially stretched polyester film / 5μηι AC ^ coating layer / 25μιτ ^ polyethylene coating. AC stands for Adhesive Coating. [Second Example] A KBOPP / AC / PE coated film and a KPET / AC / PE coated two-release film substrate were used. Shin-Etsu Low temperature bridging solvent type Silicone release agent solution, using KS-847T as the main agent and toluene as the solvent. After mixing, add 2% CAT-PL-50T platinum catalyst. The toluene solution of the molding agent was coated on the PE film surface, KB0PP and KPET surfaces of the release film substrate, and the coating surfaces were inside the corona area, and dried in a hot air circulation oven at 90 ° C for 1 minute to release the mold. Curing and drying conditions, the coating amount of Silicone is 0.7 g / m2, and it is placed in a relative humidity of 60% and 25 ° C for one day, and then coated with a one-inch wide Tesa 7475 tape on the release agent. On the surface, use a double-sided tape to stick the non-releasing agent-coated surface of the release film to the stainless steel sheet, and roll it twice with a 2 kg rubber wheel, then at 70 ° CX 20 g / m Under the condition of square pressing, the peeling force was measured after 0, 1, and 7 days, and the peeling angle and peeling speed were 12 inches / minute with a universal tensile tester 180 °. Recording Peel force (g / inch) size, in order to further tear-off angle of 180 ° peel rate of 12 inches / minute away from the edge of the tear film side constant velocity,

INVENT20030814PI27.ptc Page 23 1233446 Case No. 92124596 Month Amendment V. Description of Invention (19) Record the tearing force (g / 忖) as shown in the table below. [Table 2] Peeling force and tearing force of different release substrates using low-temperature bridging reaction type Silicone release film under different conditions ] 1 day peeling force / tearing force [g / H] 7 day peeling force / tearing force [g H] KBOPP / AOPE shower / release agent 25/33 15/33 25/34 KPET / AOPE shower / Release agent 26/42 16/43 30/43 PE coating / AC / KBOPP / release agent 23/35 15/35 25/38 PE shower flag / AC / KPET / release agent 31/42 20/41 30 / 41 KPET / AC / PE coating film represents 25μηι biaxially stretched polyester film / 5pm AC ^ coating layer / 25μηι melt polyethylene coating film β AC represents adhesive coating (third embodiment) KBOPP / AC / PE coating and KPET / AC / PE coating two release film substrates were used. Polyvinyl Octadecyl Carbamate, 1% by weight Peel oi 1 1010) Non-silicon free toluene solution, coated with 150 mesh gravure 0.07 g / m2, coated on the PE film surface, KB0PP and KPET surface of the release film substrate, coated with The cloth surface is inside the corona area, and is dried by hot air circulation Dry at 100 ° C for 1 minute, and place in a relative humidity of 60% and 25 ° C for one day. Adhere the one-inch wide Tesa7475 acrylic test tape and WQ40 1 2 rubber tape to the release agent coating of each release film. On the cloth surface, according to the PSTC-6 test method, the universal tensile tester peels the peeling force of the release surface at 180 ° peeling angle at 0.3 ° and 50m / minute peeling speed, respectively. (Release force) 'and record its peel force (g / leaf) at different temperatures, as follows.

INVENT20030814PI27.ptc Page 24 1233446 _ Case No. 92124596 _ Year Month Day _ Amendment V. Description of the invention (20) [Table 3] PE coating / AC / KBOPP / release coating, after laminating acrylic and rubber tape Measure peeling force at different peeling speeds Peeling speed test tape peeling force [g / inch] 25 ° C 40 ° C 50 ° C 0.3 m / min Tesa7475 18 20 22 WQ4012 105 124 155 50 m / min Tesa7475 31 35 38 WQ4012 250 295 329 [Table 4] PE coating / AC / KPET / release coating, after applying acrylic and rubber tape, measure its peeling force at different peeling speeds. Peeling speed test tape peeling force [g / inch] 25 ° C 40eC 50 ° C 0.3 m / min Tesa7475 29 33 47 WQ4012 195 229 297 50 m / min Tesa7475 48 54 60 WO4012 371 439 566 [Table 5] KBOPP / AC / PE coating / release coating, laminating pressure After measuring the peeling force of the acrylic and rubber tapes at different peeling speeds Peeling speed Test the peeling force of the tape [grams / inch] 25 ° C 40 ° C 50 ° C 0.3 m / min Tesa7475 17 18 20 WQ4012 95 112 129 50 m / min Tesa7475 31 32 39 WO4012 206 219 107 The advantage of the present invention is because the release film of the present invention has a high selection. High-strength plastic film as the base material, so it has a high-strength structure, and it is not easy to break during processing. When combined with various types of tapes, labels or stickers, it has a paper-like tearability and strength. Enough, but there is no risk of debris fibers falling after paper tearing, which is very suitable for the operating environment of product operation or assembly with high requirements for cleanliness and cleanliness. Another advantage of the present invention is to provide a method for manufacturing a release film ’, because during the production process of the release film, the roll film is used for easy tearing processing.

Page 25 INVENT20030814PI27.ptc Case No. 92124596 1233446 Amendment

Year five, invention description (21) processing, and by controlling the rolling density and number of rolling processes, the choice of mold material and substrate material, so the release film of the present invention ^ ^ the release force in the required range The design has a high degree of adjustable design flexibility. As understood by those familiar with this technology, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Equivalent changes or modifications made without departing from the spirit disclosed by the present invention shall all be included in the scope of patent application described below.

1233446 Schematic description of the first diagram, second diagram, third diagram, fourth diagram, ..., fifth diagram, ..., sixth diagram: Reference number of the diagram [the present invention] The first block diagram of the first implementation of the release film of the present invention Schematic illustration of the first implementation of the release film of the present invention. Block diagram of the second implementation of the release film of the present invention. Schematic illustration of the second implementation of the release film of the present invention. Schematic diagram of the third implementation of the film (3) Release roller (6) Release substrate (9) Release agent (1) Single-layer film (2) Composite layer film (4) Gap (5) Release agent ( 7) Release substrate (8) Spacer (10) Release substrate ''

Page 27

Claims (1)

: Charm poor seam — · ——A kind of release film production method, its processing steps are taken by a ... a single film or composite film by a roller with a plurality of spike-like structure to the film layer Rolling process to obtain a film base with a plurality of gaps b. Then apply the rolled single layer film or composite layer film to at least one release agent on the outer surface; Release film or double-layer release agent coated single-layer film or composite layer film is dried or cured to form a film-forming reaction to complete a release film with easy tearing characteristics (release fi lm ). 2 · The method for producing a release film as described in item 丨 of the patent application, wherein the material of the single-layer film or the composite film of the release film is selected from the group consisting of biaxially oriented polypropylene (BOPP)) , Polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether ketone (PEEK), polycarbon Esters (polycarbonate, PC), polysulfone, polyimide (PI), polyacrylonitrile (PAN), styrene acrylonitrile (SAN), polyurethane ( polyurethane (PU), nylon (Nylon), polyethylene (PE), polypropylene (PP), polyamide (polyamide), ethylene-styrene copolymer (ES), ring Dilute copolymers (cycl〇olefin), polyvinyl alcohol (PVA), ethylene-vinyl acetate (EVA), styrene INVENT20030814PI27.p t c page 28 1233446 lonitrile copolymer, pu) 'Ion polymer material paper' or a combination of the above materials, styrene aery SAN, and yue urethane, (ionomer) 'Synthetic One group P 3 · The method for manufacturing a release film as described in item 1 of the scope of the patent application, wherein the release agent material of the release film is selected from the group consisting of siHcones, silane derivatives or non; 5 Xi Li Kang (n 〇 _ si 1 ic 〇 nes) release agent. 4 · The method of making a release film as described in item 3 of the patent application, wherein the release film is non-silicon (n 〇n_si 1 ic〇nes) release agent is selected from the group consisting of fluorochemicals (flurochemican, crystalline long side chain polymer 5 (Long Side chain Polymer), chrome complex ion release agent (Chromium Complexes) and A group consisting of the above-mentioned derivatives. 5 · —A method for manufacturing a release film, the processing steps of which are: a · A single layer film or a composite layer film is provided to at least one outer surface of the cloth; b · Single-layer film or coating coated with single-sided release agent or double-sided release agent The layer film is subjected to drying or curing film forming reaction of the release coating layer; and c. A single-layer film or composite layer having a single-sided release agent or a double-sided release agent after completing the drying or curing film formation reaction The film is rolled by a roller with a plurality of spiky structures to obtain a thin film substrate with a plurality of gaps. Based on this, a release film with easy tearing characteristics is completed. 6 · The method for manufacturing a release film as described in item 5 of the scope of the patent application, wherein the material of the single-layer film or the composite film of the release film is selected from the group consisting of biaxially oriented polypropylene (BOPP), polymer Correct INVENT20030814PI27.ptc Page 29 1233446 _ Case No. 92124596_ Date ___ 6. Application scope of patents: polyethylene terephthalate (PET), polyethylene naphthalate (polyethylene naphthalate, PEN), poly ether ether ketone (PEEK), polycarbonate (po 1 ycarb ο nate, PC), polyfluorene (p 〇1 ysu 1 f ο ne), polyimide (PI) , Polyacrylonitrile (PAN), styrene acrylonitrile (SAN), polyurethane (PU), nylon (Nylon), polyethylene (polyethylene, PE), polypropylene (polypropylene, PP) ), Polyamide, ethylene-styrene copolymer (ES), cyclic olefin copolymer (CyClOolefin), polyvinyl alcohol (PVA), ethylene vinyl acetate Ester (ethylene-vinyl acetate, EVA), styrene acrylonitrile copolymer (SAN), polyurethane (PU), ionic polymer materials (i nomer), synthetic paper (synthetic paper), or a combination of at least one of the group consisting of material. 7 · The method for manufacturing a release film as described in item 5 of the scope of the patent application, wherein the release agent material of the release film is selected from the group consisting of silicone, derivatives and non-silicon. (Non-si 1 icones) release agent. 8 · The method for producing a release film as described in item 7 of the scope of the patent application, wherein the non-shi Xilicang (n 0 n _ si 1 ic ο nes) release agent of the release film is selected from gas-containing compounds (F 1 u 〇chem chemica 1), a crystalline long-chain branched polymer (Long Side chain Polymer), chrome complex ion release agent (Chromium Complexes) and a group of the above-mentioned derivatives. INVENT20030814PI27.ptc Page 30 1233446 9 · A method for producing a release film, the processing steps of which are: a · A single film or a composite film is used to pass a wheel with a plurality of spiky structures, and the film is pressed 4 a -t - φ, sheet-iii ^ Ί olive & while paying having a film-grass several gaps of clothes -: partition said film having a substrate a plurality of gaps is at least of the media - table ... button C. again having a plurality of ^ At least one surface of each of the gaps is combined with at least one outer surface of the spacer early layer film or the composite layer film for single-sided release coating; ^ S d. Then, the single-layer film or the composite layer film coated with a single-sided release agent or a double-sided release agent is dried or cured to form a film-forming reaction of the release agent coating layer so as to complete the process with easy tearing. Breaking characteristics of the release film. 1 〇 · The method for producing a release film as described in item 9 of the scope of the patent application, wherein the material of the single-layer film or the composite film of the release film is selected from biaxially oriented polypropylene (BOPP) ), Polyethylene terephthalate (PET), polyethylene naphthalate, PEN), Poly StS (poly ether ether ketone (PEEK)), polycarbonate (PC), polysulfone, polyimide (PI), polyacrylonitrile (PAN), Styrene acrylonitrile (SAN), polyurethane (PU), nylon (Nylon), polyethylene (PE), polypropylene (PP), polyamide (polyamide) ), Ethyl acetophenone copolymer Page 31 INVENT20030814PI27.ptc 1233446-Case No. 92124596_— Month_g_Amendment__ VI. Application for Patent Range (ethylene-styrene Copolymer, ES), Cycloolefin Copolymer (cyclo olefin), Polymer Vinyl alcohol (vinyl aichh, pH), ethyleneiinyi acetate (EVA), styrene acrylonitrile copolymer (SAN), polyamines (p〇lyUrethane Pu), ionic polymer materials' (ionomer), synthetic paper or a group of the above materials. 11 · According to the method for producing a release film as described in item 9 of the scope of the patent application, the release agent material of the release film in beans is selected from siUcones, silicon 'Ricon derivatives or non-silicon (Non-silicones) release agent. 1 2 · The method for producing a release film as described in item 9 of the scope of the patent application, wherein the non-si 1 icones release agent is selected from the group consisting of fluorochemicals (fluorochemi cal) and crystalline Long side chain polymer (Long side polymer), chromium ion-type release agent (Chromium Comp 1 exes) and the above-mentioned derivatives of a group of derivatives. 13. The production method of the release film as described in / claimed in item 9 of the patent, wherein the material of the spacer medium is selected from the group consisting of acrylic (acryHc), polyester (polyester), polyethylene (PE), Polypropylene (pp), polyamide (nylon), polyethylene polypropylene copolymer, ethylene styrene copolymer (ES), cyclic olefin copolymer (cyclo olefin), nylon (Nylon ), Polyvinyl alcohol (PVA), ethylene ethyl acetate (eva), ionic high knife material (i 〇η 〇mer), epoxy resin (ep 〇χ y), polycarbonate (p (), poly (Polysulfone), polypropylene (pAN), styrene acrylic copolymer (SAN) 'styrene-butadiene copolymer (styrene-butadiene 1233446 _ Case No. 92124596 _Zhu Yueri ___ Six, the scope of the patent application (copolymer), hot melt adhesive (hot melt adhesive), polyurethane (PU), synthetic paper (synthetic paper), or a combination of the above materials to obtain a low A group of extensible materials. 1 4 · The method for producing a release film as described in item 9 of the scope of the patent application, wherein the material of the spacer medium is selected from starch and starchy derivatives, starch and agar , Gelatin, weir, fatty acid and its derivatives, surfactants, or a combination of the above materials to obtain a group of materials with low elongation. 1 5 · The method for producing a release film as described in item 9 of the scope of the patent application, wherein the coating method is selected from 1 aminating, solution coating, and drying and hot melting A group consisting of adhesive coating (hot meH adhesive coating). INVENT20030814PI27.ptc Page 33