TW201008769A - Protective film - Google Patents

Abstract

The present invention provides a protective film, which at least includes an adhesive layer and a non-adhesive layer. The adhesive layer is made of a thermoplastic elastomer, and the non-adhesive layer is a film made of polyolefin, wherein the surface of at least one of the adhesive layer or non-adhesive layer has been treated with a roughening treatment. Thus, when the protective film is wound into a cylindrical shape, the contact area between the adhesive layer and the non-adhesive layer can be effectively reduced. As a result, the protective film can be easily delaminated when being pulled out, thereby achieving the advantages of preventing extension deformation or residue glue.

Description

201008769 IX. INSTRUCTIONS: [Technical Fields of the Invention] The present invention is a kind of financial protection, especially attached to the surface of an optical film for preventing the scratches and dirt generated by the processing of the film. Protective film structure. , [Prior Art] ❿ Press 'In recent years, due to the processing of silk materials and electronic parts, it is often shipped to zero: the state of the established sheet-like packaging, or the state attached to the adhesive tape. : Preventing the surface of parts from being scratched or contaminated. The surface protective film is especially widely used in the field of zizi and electronic parts, especially optical films with light-preferred microstructures on the surface. A protective film is provided to prevent the optical microstructure from being scratched during processing and transportation. I know that the protective film 1 has an adhesive layer 11 and a non-adhesive layer 12, the non-adhesive layer 12 is a film of pe material, and the adhesive layer 1 is a single The layer is coated on the non-adhesive layer 2 of the high-viscosity adhesive knee, and the high-viscosity adhesive layer of the adhesive layer 11 can adhere to the optical microstructure of the surface of the optical film thick chain to protect the optical film. purpose. Only the protective film 1 is in the raw lining, and it is usually stored in a cylindrical shape to be transported. Referring to Figure 2, when the protective film is in the state of being wound up, the adhesive layer 11 will be different. The adhesive layer 12 is in overlapping contact, and when the protective film 1 is to be attached to the surface of the optical film, the protective film 1 is pulled out to cover the optical microstructure surface of the optical film with the adhesive layer 11; The adhesion layer 11 and the non-adhesive 201008769 layer 12 are overlapped and squeezed by the layers of the layer. In addition, since the contact area between the adhesive layer and the non-adhesive layer 12 is large, there is often a lack of difficulty, thereby further protecting The film 1 is pulled (four), and the surface of the material surface is stretched and deformed, causing inconvenience in use; if _(four), for example, _(5)b__ generation adhesive layer 1 1 is made of plastic, although the material solution _ and the non-adhesive layer i 2 extend The problem of deformation, but due to the high cost of the coating process, and the possibility of migrating, the release agent of the non-adhesive layer 12 will break away. The type of agent is stained and soiled. Therefore, in order to reduce the contact area between the adhesive layer 1 and the non-adhesive layer of the protective film 1 , a developer has developed another protective film 2, as shown in the third, the protective film 2 has an adhesive layer 21 and a non-adhesive layer. The layer 2 2, the non-adhesive layer 2 2 is a film of a p E material, and the adhesive layer 2 为 is a single layer of a highly viscous adhesive disposed on the non-adhesive layer 2 2 , wherein the layer 2 1 The transfer system is set on the non-powder: the layer 2 2 is formed, so that the adhesive layer 2 1 is formed to be separated from the distribution, and by the adhesive layer 2 i, the high-grade teacher's ageing silk is the optical fiber of the rough silk. Structure to achieve the purpose of protecting the optical film. Although the adhesive layer 2 of the protective film 2 is reduced in contact with the layer 2 by the square wire distributed in a dot shape, the effect of easy peeling is obtained, however, the adhesive layer 2 i is still mixed. Adhesive (4) coffee as high adhesionist, &, the 2, when the warranty 2, there will still be a lack of residual glue. Please also pay for the four hearts Wei _3 Cai ~ Adhesive layer 31 and a non-adhesive 201008769 layer 3 2, the non-adhesive layer 3 2 is ~ Adhesive layer 3 2-side surface is formed with a film of p £ material' Wherein, the non-1 is a single layer disposed on the non-adhesive layer 3 2 <<<>><><>><><><>> By the non-adhesive layer, the non-adhesive layer 3 2 of each recessed portion 3 21 is better than the dot-shaped distribution when it is finished, so as to reduce the warranty 4 of the layer 31, the same can be used.接触 adhesion layer 3 2 contact area, however, the adhesive layer 31 and non-parameter (high-adhesive adhesive), = layer 3 1 is still doped with a tackifier or can not overcome the lack of residual glue . When the μ protective film 3 is used, the applicant of the present case is also a professional protection θ ^ L 犋 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The invention is finally obtained. SUMMARY OF THE INVENTION The main fresh section of the present invention is a miscellaneous supply, the protective film to the yoghurt #adhesive layer and a non-adhesive layer, the adhesive layer is made of a thermoplastic elastomer. The elastomer can be TP〇 (Therm〇plasticp〇ly〇lefin

Elastomer polyene elastomer), TPU (Therm〇plastic polyurethane), TPS (Styrene Block Thermoplastic Elastomer styrene elastomer), or SBR (Styrene-Butadiene Rubber styrene-butadiene rubber), Or a mixture thereof; the non-adhesive layer is a film made of a polyolefin, and the polybenzane may be a polyethylene such as: LDPE (Low Density Polyethylene), MDPE (Medium Density Polyethylene) Poly B 201008769

Ethene, HDPE (High Density Polyethylene), LLDPE (Linear Low Density Polyethylene), or copolymer or blend of the above materials, or polypropylene, such as :Homo PP (homogeneous polypropylene), Rand〇m pp (random copolymerized polypropylene), B1〇ck PP (blocked co-propylene) wherein the surface of at least one of the adhesive layer or the non-adhesive layer is roughened The treatment is made of a thermoplastic elastomer by using the adhesive layer, and the adhesive force required for the microstructure of the optical film can be achieved without adding a tackifier, and when the protective film is wound into a cylindrical shape, the treatment is utilized. The thick green surface Y of the adhesive layer or the non-adhesive layer effectively reduces the __ of the adhesive layer and the non-adhesive layer, so that the security can be pulled out and the effect of using the 4' can reach the lion's and the social extension of the Weijiu. The second-purpose object of the present invention is to provide a protective film comprising at least an adhesive layer and a non-adhesive layer made of a thermoplastic elastomer. The non-transfer layer is a polyolefin. The prepared film, wherein the adhesive layer is combined with the non-+ layer system, so that the processing of the cloth transfer can be saved, thereby achieving the effect of reducing the manufacturing cost. The purpose of the re-objective is to provide a protective film which is at least a layer of the inclusion body and a non-persuasion layer above the layer. The adhesive layer is elastically bombarded with the non-adhesive layer. _The film produced by increasing the strength of the protective film by non-sticking '==, and reaching the pull-out [Embodiment] is to make it easier for the examiner to understand the structure of the present invention and the work that can be achieved. 201008769 Effect description is as follows: First, referring to FIG. 5, the protective film 4 of the present invention comprises at least one adhesive layer 41 and a non-adhesive layer 42. The adhesive layer 41 is made of a thermoplastic elastomer, and the thermoplastic elastic

The system may be TPO (Thermoplastic Polyolefin Elastomer), TPU (Thermoplastic Urethane), TPS (Styrene Block Thermoplastic Elastomer styrene elastomer), SBR β (Styrene-Butadiene Rubber styrene-butadiene) Rubber) or the like, or a copolymer or blend of the above raw materials, wherein the thermoplastic modulus of the adhesive layer 41 has a shear modulus greater than that at 25 C'lHz. 0. IMPa, and its melt flow rate (cerebral palsy is between 0 5_30 (23〇. C/5Kg)' and preferably can be between 〇.丨-20 (230°C/5Kg), which is best In M5 (230 C/5Kg) 'In addition' the adhesive layer 4 1 can achieve the adhesion required for the rough or microstructured surface of the optical film without the addition of tackifiers. At room temperature (25 ° 〇 attached to the surface of acrylic (PMMA), and at 300 cut / min peel speed, the adhesion is greater than 300g / 25mm. Non-adhesive layer 4 2, with polyolefins The film produced, the polyene can be a traditional ZN catalyst or metallocene catalyst pe (polyethylene) series Such as LDPE (LowDensity

Polyethylene Low Density Polyethylene), MDPE (Medium Density Polyethylene), HDPE (High Density Polyethylene), LLDPE (Linear Low Density Polyethylene Line 201008769 = Degree_) #,纽糊办-lymer) Or a blender, wherein the non-adhesive layer 4* / A d is right ^^, and its slewing fluid (_, 于于〇热 3G(10). (7) 崎) can be between 0.1-20(10). C/2. Service g), very good speed '(10) Gong·he). In addition, _« layer 42tmt〇·8-14: touch: side catalyst. P (_ series, such as Dun 2:: ra please), block copolymer (10) CIO, etc., or a mixture of the above types (t-ring polyene ((10); where the supporting layer is polypropylene, its melt flow The rate (10)) is between 〇. 〇5_3〇(10). (10)·Saki's preferred flow rate can be between 〇. Bu 2〇(10). c/2• withdraw g), even better – point can be: 丨 〇. 8-14 (23(TC/2"6Kg). In addition, the surface of the non-adhesive layer 42 is rough-bonded to a rough surface 41, which may be a rule when implemented. Or irregular geometric arrangement, such as: dot-shaped, straight strip-shaped. And its processing square ❿ f can be 'sand, embossed (such as leaching _ practice), embossing wheel (after molding, then heat compression j or roughening The raw material Cong (L〇w Density P〇lyethylene low density) makes the coarse bond surface 41 to roughen, and the rough surface of the rough surface 4 2 1 will make the fog of the protective film 4 of the present invention. The degree of Haze is not less than 10%. However, the shaft 4 of the present invention is combined with the process of the layer 4 and the hybrid layer 4, and, and the process of the extrusion, thereby making the invention Protective film 4 The processing steps of the coating are omitted to reduce the manufacturing cost. 201008769 / Please refer to the sixth embodiment, when the protective film 4 of the present invention is in the form of a cylindrical tube, the adhesive layer 41 can be added without adding The thermoplastic elastomer of the adhesive is not the adhesive and the rough green surface of the non-adhesive layer 42 to reduce the area of the non-adhesive layer 4 2 and the adhesive layer 4 1 to protect the mosquito 4 (4). In the case where the protective film 4 of the present invention is implemented, the protective film 4 of the present invention may be rough-treated into a rough sugar surface 4 when it is implemented. Work, and in the middle, the roughness of the rough surface of the 44 2丨, the haze of the fine _4 ((4)) can be = not to 1G% by this, when the protective film 4 is wound into a cylinder, use The rough surface 411' of the adhesive layer 4 1 can effectively reduce the contact area between the adhesive layer 41 and the non-adhesive layer 42. When the protective film 4 is pulled out, the effect of easy peeling can be achieved. According to another embodiment of the present invention, the protective film 4 lacks at least an adhesive layer 41 and one or more non-adhesive layers, wherein The surface of the non-occupant layer 4 2 in contact with the outside is rough-processed into a rough sugar surface. 1 'The hunting is made by setting the non-adhesive layer 4 2 into a plurality of pieces, which can increase the strength of the protective film 4 instead of the adhesive layer. 4 2 rough surface 4 2 丄 can reduce the contact area between the non-adhesive layer 4 2 and the adhesive layer 41. The protective film 4 can achieve the effect of extending deformation when it is pulled out. The effect of the invention lies in The adhesive layer 4 is made of the thermoplastic matrix of the knee, and the process layer of the adhesive layer 4 i and the non-adhesive layer 4· is double-sided, and the cleavage is effective. 11 201008769 The processing step of cloth bonding is to reduce the manufacturing cost; and by ΤΡΟ (Thermoplastic Polyolefin Elastomer), τρϋ (Thermoplastic Urethane), TPs (Styrene B1〇ck

Thermoplastic Elastomer styrene elastomer, s clothing (Styrene-Butadiene Rubber styrene-butadiene rubber), etc., or an adhesive layer made of a copolymer or blend of the above materials, Without the addition of a tackifier, it is possible to achieve the age of the optical film rough or rough surface, and then match the adhesive layer 41 or the non-adhesive layer 42 to at least its towel - The surface of the person is provided with a roughened design, so that when the protective film* is wound up, the contact area between the adhesive layer and the non-adhesive layer can be effectively reduced, and the protective film 4 is pulled out to make the branch, and the extension is prevented, and the extension is prevented. The effect of deformation or residual glue

"Without the above description, the invention can achieve the purpose and effect of the claim by the above-mentioned ship's 4, and should meet the requirements of patent practicality, novelty and progressiveness, and submit an application for invention patent according to law. #考员的详鉴,惠赐 is the approval of the patent, to the sense of virtue. [Simplified illustration of the diagram] Figure diagram is a schematic diagram of the conventional protective film of the two systems of the conventional protection of the state of the coiled state. Fig. 4 is a schematic cross-sectional view of the protective film. Fig. 5 is a schematic cross-sectional view of the protective film of the present invention. 12 201008769 Fig. 6 is a schematic view of the protective film of the present invention in a retracted state Fig. 7 is a schematic cross-sectional view showing another embodiment of the protective film of the present invention. Fig. 8 is a schematic cross-sectional view showing still another embodiment of the protective film of the present invention. [Description of main components] 1 protective film 1 1 adhesive layer 12 non-adhesive layer 2 protection Film 2 1 Adhesive layer 2 2 Non-adhesive layer 3 Protective film 3 1 Adhesive layer 3 2 Non-adhesive layer 4 Protective film 4 1 Adhesive layer 4 1 1 Rough. Face 4 2 Non-adhesive layer 4 21 Thick chain surface

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Claims (1)

201008769 X. Patent application scope: 1 ·= Kind of protection 臈, the protective film is at least rich: The Ϊ turn layer is made of thermoplastic elastomer and is set at NAND. The sinus flow rate of the two-layer layer (10) is between G. (4) and (10) g and at 25C'1Hz, the shear modulus of the adhesive layer is greater than that of the chamber, and the layer of the fault is It is a combination of the ❹ ❹ 制成 或 或 职 职 城 。 。 。 。 。 。 。. 2. As claimed in paragraph 1 of the patent scope, the towel, the 巾 孰 陶 陶 陶 陶 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( Butadiene rubber (10)) or its blend, or copolymerization (c_ymer). The protective film according to claim 1, wherein the adhesive layer has a maneuvering speed (MFR) of more than 〇. 2 ( (10) 。. 4 · The protective film described in the application of the patent scope, wherein the adhesive layer has a dynamic rate (thoracic) of 0.55_15 (23 "c/5Kg"). 5', as described in the patent application Lai 1:cM, wherein the adhesive layer has a MiR flow rate (MFR) of more than G 8_14 (10). (2) 岐). Port 6 as claimed in the patent application; [the protective film described in the item, wherein the surface of the adhesive layer or the non-stretched layer is at least a roughened rough surface, thereby allowing the haze of the protective layer Up to 10%. 7. The protective film according to claim 2, wherein the non-adhesive 14 201008769 - layer of the thin raw material may be a ZN catalyst or a metallocene catalyst low density polyethylene. _), medium density poly Ethylene (_), high density polyethylene (HDPE), linear low density poly (10) (LLDPE), green silk or blenders. 8 _·If the patent application is turned over, the protective film according to item 7, wherein the non-adhesive smelting and moving rate (10)R) is between (remuneration (7).1 serving g). 9 The protective film according to claim 7, wherein the non-adhesive enthalpy has a melting rate (MFR) of 0.1 to 2 G (190. (: /2. 16 Kg). For example, she applied for the protective film described in the article, in which the non-adhesive 曰 melt maneuver rate (10) can be more than 〇. 8_14 ((10)n service). The protective film according to the first aspect of the invention, wherein the non-adhesive layer of the non-adhesive layer may be a copolymer or a mixture of a ZN catalyst or a metallocene catalyst PP (polypropylene) series. . _ "12 * Patent Application No. 1: Protective film according to [the item, wherein the non-φ soil-day melt flow rate (臓) is between -30. 05-30 (23 (TC/2.16Kg)). Viscous w 3 as claimed in claim 11 of the scope of the patent, wherein the flow rate (pulse) of the non-Japanese fused flow may be more than 〇. (2) "Μ服泛). The protective film according to claim 11, wherein the non-physical flow rate (MFR) of the non-pure can be more than 0.8-14 (23 (TC/2.16Kg) 15 201008769 The protective film according to claim 1, wherein the non-adhesive layer may be one or more layers. The protective film according to claim 1, wherein the adhesive layer and the non-adhesive layer are combined by extrusion. 16