TW201041705A - Method of cutting laminated body - Google Patents

Abstract

A method of cutting a laminated body is provided. The method is capable of obtaining economically and easily a cutting surface having good quality even if part (film) of the laminated body is a poor-tensible film. In the method, the laminated body is cut with a cutting blade. The laminated body includes a separator film, and a multi-layered film which is laminated on the separator film through an adhesive. The multi-layered film includes a first protective film laminated on the adhesive, a polarizer laminated on the first protective film, and a second protective film laminated on the polarizer. The approaching speed (cutting speed v) of the cutting blade relative to the laminated body is adjusted to 8 mm/sec or more, preferably 10 mm/sec or more in actual measuring, so as to cut the laminated body.

Description

201041705 J^uiopn Description of the Invention: [Technical Field of the Invention] The seed layer of the film which is cut by the film of the adhesive film by the cutting jig is cut by the cutting jig. Break method. The product of the cutting needle is cut off. [Previous technique] The film is cut by the film, and the layered body of the film with 1 layer of the film is cut off. Too straight = 4 = 5 f paste / The method disclosed by the newspaper is already known. For example, the cutting method disclosed in the publication No. 2QQ6_142445 疋 the following materials:

The compressive stress of the stratified layer is used to perform the squeezing, and in the state where the tensile stress is applied to the surface S of the body and the compressive stress is applied to the back side, the compressive stress is reduced, thereby "self-cutting during the cutting process" The internal stress of the cross section toward the cutting blade is alleviated, so that the adhesion between the cut surface and the cutting blade can be reduced, and as a result, adhesion of the adhesive to the cutting blade, that is, adhesion can be prevented. The cutting method disclosed in Japanese Laid-Open Patent Publication No. 2003-302524 discloses a method in which a polarizing plate using a hydrophilic material in an optical member is particularly susceptible to moisture, and therefore it is found that The moisture percentage of the optical member is controlled within a fixed range. 'The crack does not occur on the cut surface, and after the cutting, the film does not curl, so that the moisture content of the optical part becomes 2 weights were adjusted in the form of 201041705% to 4% by weight, and then cut. A cutting method disclosed in Japanese Laid-Open Patent Publication No. 2006-142445, wherein a cutting device including a pedestal and a fixing unit is used, and the pedestal has a cutting blade for cutting the layer by cutting the blade. The surface shape applied to the integrated body = reduced shrinkage stress, or a surface shape in which stress is generated on the surface side of the laminated body and compressive stress is generated on the back side, and the above-mentioned fixed single-breaking H-filament and mosquito-repellent Hurry, but there is the following problem. 'The cost of the pedestal in the pedestal will cost (coffee [) and time j ° = and 'because for the surface of the laminated body, the pressure is applied in the direction of the face, and the child is wrinkled, or occurs. Problems such as deformation. In the method of cutting the square 0/7 field disclosed in the second ==〇03.24, the moisture content of the first element is adjusted to 2% by weight to 4% by weight. It is 2% by weight to 4% by weight, and the storage management and step management of the parts are costly (4), and there is no verification at all: the laminated body is changed.曰 Due to the elongation of the constituent material of the laminate, the content of the laminate is greatly changed. [Invention: ===:==: The purpose of the film is a film with a low elongation, and it may not be consumed; *成成本201041705 34018pif Good The quality of the cut surface. [1] The method for cutting a laminated body according to the first aspect of the invention is characterized in that one layer of the above-mentioned layer is read by the adhesive agent, and the method of cutting the layered body is smeared; the second is: = = : package, characteristics of the invention It lies in: • Product = = off. = The speed is adjusted to 1 〇 _= = = The laminate is cut. [10] The first invention is characterized in that the cutting blade is used as the cutting blade. Use a knife too angle of 43. The following [4] The first invention is characterized in that a cutting blade is used as the cutting blade. I is 30 or less. [5] The processing blade according to the first aspect of the invention is the cutting blade. In the case of the first invention, when the _N or more is used, a cutter having a hard 〇 = or a hard burr (above) of the blade tip is used as the cutter.脰[7] The invention of the brother 1 is characterized by: upper: two to the parent station, and two broken: one:) for; 1:1:: and: using the sponge hardness (" [and the invention of the second special The elastomer is referred to as an elastomer. The WI帛 hardness is 5 G or more, and the above-mentioned adhesive and the above-mentioned layer of the adhesive layer on the separation sheet are adhered to each other. According to a third aspect of the invention, the first protective film including the j layer or more is interposed with the #j_ layer on the adhesive, and the laminate: (4) 2 protection; a film polarizing element; In the first aspect of the present invention, the first protective film and the second protective film are made of triacetyl cellulose, and the elongation in the longitudinal direction is less than 42%, and the elongation in the transverse direction is less than 43. _ 〇 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' The method is characterized in that the above laminated body comprises a separation film, a coating agent, and The multilayer film including the one or more thin films on the separation film is laminated with the adhesive, and the laminated body is cut from the separation film side toward the multilayer film. [13] The second invention is characterized in that The multilayer film includes a first protective film laminated on the adhesive, a polarizing element laminated on the second protective film, and a second protective film laminated on the polarizing element. [14] The second invention is characterized in that: The first protective film and the second protective film are made of cellulose triacetate, and have an elongation in the longitudinal direction of 42% and an elongation in the transverse direction of less than 43%. As described above, the laminate of the present invention is cut. Part of the 201041705 34018pif method laminate (film) is a product that achieves a good cut surface without cost and time. The features and advantages of the present invention will become more apparent. The above and other objects, features and advantages of the present invention will become more apparent. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment will be described with reference to FIGS. 1 to 9 . This embodiment is a method for cutting a laminated body of the present invention, which is used for manufacturing a liquid crystal display device or the like. As an example of the method of cutting the laminated thin layer of the polarizing plate, first, as shown in FIG. 1, the laminated film 1 of the present embodiment includes the separation film 12 and the laminated film I is laminated via the adhesive 14 The multilayer film 16 is formed of a polyethylene terephthalate (PET) film. The multilayer film 16 constitutes a polarizing plate body, and the multilayer film includes a layer of an adhesive. The first protective film 18a on the first polarizing film 18a, the polarizing element 20 laminated on the first protective film 18a, and the second protective film 18b laminated on the polarizing element 2''. Each of the first protective film 18a and the second protective film 18b is a cellulose acylate film, and a cellulose triacetate (TAC) having an average degree of vinegar of 57.5% to 62.5% can also be used. ) A TAC film formed. Further, the polarizing element 20 can be made of polyvinyl alcohol (polyvinyl alc〇h) in 201041705 jH-υΐδριι and can be used in the cutting method r of the present embodiment, for example, using the i-th device shown or corresponding to The laminated film is transferred to the second by the longer drawing cutting device (see Fig. 4), etc., and the solid film is used for, for example, a polarizing plate of a liquid crystal display device, and the film is 简ο 故 故 故 魅 简 简 曰 曰 曰: In the case of the Kawagawa, the transporting mechanism 34 that transports the laminated film on the mounting table 32 and the cutting jig 30 In the up and down direction, the smear is smeared and the slab is placed on the plastic moving mechanism 38 with the pressure _ | And fixed to the feed flat: 32 == 42 on the lower surface is fixed with a cutting jig %. The I table is not smashed, and the cutting tool 36 includes a base 44 (for example, wood) fixed to the lower surface of the pressing plate 42, and a cutting blade held by the disk and fixed to the base 44. 46. Further, when the lower surface of the U.S. 44 ^ is adjacent to the cutting blade 46, the cutting blade 46 is rotated from the base t/body 48. When the length of the protrusion is set to be smaller than the bullet" (from the base 44 when the laminated film is cut), the southness tb ° of the H is cut off when the knife is broken due to the moving mechanism 38 toward the laminated thin layer 201041705 34018pif film pressure Since the cutting jig 36 is cut, the elastic body 48 held by the base and the product is elastically deformed in the direction of shrinkage, and only the blade enters into the laminated film 1〇, and the laminated layer is thinned. After the jig 36 is thinned toward the exit layer, the bulk 48 is elastically restored, and the cutting blade 46 === cut: [bit. Therefore, when the cutting blade 46 is self-assembled, the laminated film 10 is pulled out. The deformation of the surface is suppressed, and, again, the layering ^

The adhesive 14 does not adhere to the cutting edge of the cutting blade 46. I dreamed of continuous cutting operations. In the aeronautical navigation, the shape of the blade tip that can be opened (the shape of the blade along the tip) can be linear or frame-shaped. In the case of a frame shape ^ Punch to perform the cutting operation. As shown in FIG. 4 and FIG. 5, the second cutting device includes a supply portion 5 that supplies the laminated film 10, a pressed portion 52 that punches the laminated film 1A to obtain a plurality of polarizing plates, and a punched portion. The laminated thin layer 2, the recovered winding portion 53, the laminated film with a fixed tension,

The transport mechanism 54 that transports the transport unit and the control unit that drives and guides each part. The unillustrated conveyance mechanism 54 includes an i-th conveyance unit 56a that conveys the product to the press unit 52 side, and a second conveyance unit 56b that cyclically conveys the thin 膘% and 〇 two-point lock lines. It functions as a base of 10 and is used to transport the laminated film 1 to the second film. For example, a film made of PET can be used as the film. The first first conveying unit 56a is provided on the upstream side of the pressing unit 52, and the first nip roller that conveys the laminated film 1〇 toward the pressing unit 52 side is provided. (pinch roll) 60a, a dancer roll 62 provided between the delivery unit 50 and the first nip 60a, and a guide roll 64. The second transfer unit 56b is provided on the downstream side of the press unit 52, and the second transfer unit 56b includes a second nip 60b that circulates the film 58 toward the upstream side of the dust unit 52, and a plurality of guide rollers 64. The pressing portion 52 includes a pressing plate 42 which is positioned above the frame 72 by, for example, four support shafts 70a to 70d (see FIG. 5); and a drive mechanism 74 (refer to FIG. 6) 'provided in the frame 72' and The pressing disk 42 is moved and driven in the vertical direction, and the cutting jig 36' is provided on the lower surface of the pressing plate 42 (the surface facing the laminated film 10 to be conveyed). As shown in FIG. 6, the drive mechanism 74 includes a first drive unit 74a that moves and drives, for example, two support shafts 70a and 70b on the front side of the four support shafts 70a to 70d in the vertical direction, and a second drive unit. 74b, the remaining two support shafts 70c and 70d are moved and driven in the vertical direction. The first drive unit 74a includes a first connection portion 76a that connects the two support shafts 70a and 7b, a first long hole 77a provided in the first connection portion 76a, and a first eccentric cam (cam) 78a. The first flywheel 82a, the first motor (myt〇r) 84a having the first shaft (shaft) 80a of the first eccentric cam 78a as a center of rotation, and the first! The rotational force of the motor 84a is transmitted to the first timing bek 86a of the first flywheel 82a. The eccentric position of the surface opposite to the i-th axis 8A in the first eccentric cam 78a is provided with a shaft that is rotatably inserted into the second long hole 77a. The second drive unit 74b also has the same 11 201041705 34018pif configuration as the i-th drive unit 74a, and the second drive unit 74b includes a second connection unit 76b that connects the two support shafts 7〇c and 7〇d. The second long hole 77b of the second connecting portion 7A is rotatably attached to the second eccentric cam 78b that is slid by the second connecting portion 7, and the second axis of the second eccentric cam 78b is used as the center of rotation. The second flywheel 82b, the second motor 84b, and the second timing belt tip for transmitting the rotational force of the second motor 84b to the second flywheel 82b. Here, the second motor 84a of the first drive unit 74a and the second motor 84b of the second drive unit 74b are synchronously driven based on the timing signal from the control unit. Therefore, since the first motor 84a and the second motor 84b of the second drive unit field are synchronously driven, the first eccentric cam 78a and the second eccentric cam 78b are respectively coupled to the second axis by the second axis 8 and the second eccentric cam 78b. The first connecting portion 76a and the second connecting portion 76b and the four support shafts 70a to 70d are rotated in the vertical direction at substantially the same timing. As a result, the pressing disk 42 moves toward the direction close to the laminated film 1G and away from the laminated film 10. The cutting jig 36 is substantially the same as the configuration shown in FIG. 3, but is provided with four frame-shaped cutting blades 46, and the corner portion is reversed (R-face) by one cutting (punching). Four rectangular polarizing plates (see Fig. 5). However, when the TAC thin film is used as the first protective film 18a and the second protective film 18b constituting the laminated film 1〇, a TAC film having an elongation 鬲 or a TAC film having a low elongation is considered. The elongation here is a load applied and stretched until the TAC film having a width of 20 mmx and a length of 100 mm is broken, and the increase in the length of the TAc film at the time of the fracture is the ratio (percentage) of the original length, that is, 12 Ο Ο 201041705 34U18pit == increased length (increase amount) / original length 丨 · (%) _ TAC film with high gastric elongation means that the elongation of the longitudinal side is 42% or more, and the transverse direction ( TD: TAC verse eCtl〇n) A TAC film having an elongation of 43% or more; the elongation film means a TAC film having an elongation of less than 42% in the longitudinal direction and an elongation of less than 43%. When the film (10) of the TAC film having a high elongation/elongation ratio is used, the film (1) of the TAC film having a low T4 film is cut. The magnitude is different. The door was produced by evaluating the quality of the cut surface between the polarizing element 20 and the lower first protective film, delamination (interlayer peeling), and the number of thin and f-shaped cracks in the multilayer film 16. The following (indicating, as the ratio of the length in the edge direction) and the length in the depth direction, which is referred to as the length in the depth direction, the ratio of the delamination to the delamination is the polarization and the end face (edge (obtained) obtained by cutting the laminated film 10. Edge)) delamination (layer: ratio for the reference length (50 mm), the average value is = upper, for each reference length of the end face of the polarizing plate obtained along the cutting direction = direction The innermost value of the delamination length of the (inner side) = the thousand mean value of the larvae. In addition, the number of cracks generated on the (edge) of the polarizing plate obtained by cutting can be evaluated for the number of cracks. , an experimental example is shown. In this experimental example, the laminated layer 10 (sample 1) of the TAC film having a ratio of two and the TAC of the low elongation of 13 201041705 34018pif is used. When the laminated film 1G (sample 2) is cut, it is measured as (4); when it is cut, for example, as shown in Fig. 7, the elastic hardness is 30. The elastic resistance is 6 mm/SeC ( Measured value), use the sea knife tip angle Θ as ^. / knife to make / elastomer 48 (refer to Figure 3), use to cut 46, 帛; ^^ has been processed into a mirror-shaped processing knife for the following addition. ν 1 is the value measured by the Asker C hardness meter, σ, the upper surface of the multilayer film 16 (the first upper surface) and the cutting blade 46 2: = == on the feeding platform 32, cut from the multilayer film '12. The experimental results are shown in the table. The carving speed [Table 1] cutting speed (mm / sec) sponge hardness sample 1 130°~ sample 2 6 30. Tip angle j6° (mirror surface) Edge direction length ratio 0.25 Depth length (mm) 0.18 Crack (average) According to the experimental results in Table 1, it is known that the laminated film 10 using TAC film (sample 〇 In the quality of the cut surface, the direction length ratio is G, the length in the depth direction is the surface, and the number of cracks is also the opposite of the center. The product of the cut surface of the laminated film (sample 2) having a low elongation TAC_ is used. f, the length ratio in the edge direction, the length in the depth direction is 0.18 mm, and the number of cracks is 66. Thus, it is generally considered that the quality of the cut surface of the laminated thin film 14 201041705 34UI8plf film 10 (sample 2) using a TAC film having a low elongation is considered. The reason for the deterioration is the mechanism shown in Fig. 8A to Fig. 8D. That is, first, as shown in Fig. 8A, the cutting edge of the cutting blade 46 comes into contact with the upper surface of the multilayer film @ (the upper surface of the second protective film 18b), and then, after the cutting blade 46 is pressed downward The knives of the upper surface of the multilayer cymbal 16 are applied with a load, and the laminated film 1G is deformed in the thickness direction ("bent-to-child" bending deformation).

Then, as shown in Fig. 8B, the cutting blade 46 is moved downward to the multilayer film 16, and the upper second protective film 1 rib is cut and then moved to the polarizing element 2''. At this time, the lower i-th protective film 18a is compressed and deformed by the blade edge, and then the laminated layer 1 is formed into a shape of a word. In particular, after the cutting element of the upper second protective film 18b is formed, the blade edge gradually enters. Then, with the laminated film 10 (sample 1) using the TAC film having a high elongation, as shown in Fig. 8C, the blade edge enters the lower first protective film 18a with a rapid momentum. At this time, the lower i-th protective film 18a is broken along the blade edge earlier than the cutting by the blade edge. On the other hand, for the laminated film 10 (sample 2) using a TAC film having a low elongation, as shown in Fig. 8D, the blade edge enters the lower first protective film 18a with a rapid momentum, but the upper layer The second protective film 18b is a reaction load (cutting load) at the time of completion of the fracture, which is larger than the laminated film 1 〇 (sample 丨) using a TAC film having a high elongation, and therefore, is obliquely broken, so that the lower layer of the third layer The protective film 18a is broken earlier than the cutting caused by the cutting edge. This becomes the cause of the crack. That is, 15 201041705 34018pif (sample "two = rTAC film laminated film, the laminated film 1 is broken in a hard state, and the gap is formed by the slight slippage of the layer 1 adhesion portion. If there is a product f having an elongation of 10 (the sample 仏 can also obtain the same degree as the /_ laminated film * ΤΛ = ), the range of selectivity of the TAC film can be increased, for example, the wide JT expansion The most suitable (10) light plate is provided by the type. The first embodiment is shown in the following description, and the second method of the second embodiment is a method of using a thin film having a TAC film having a low elongation; For the product which can obtain a good cut surface without cost and time;), also, the first cutting method, for example, as shown in FIG. 7 side, the laminated film 1 is cut off and the film 16 is adjusted. For the cutting of the A sw, the cutting speed v ?=_/sec (actual measurement value) or more is preferably adjusted to: (Secret) or more, to cut the laminated film 1〇. The bar = the following conditions are satisfied (1) Any one or more of (5) (1) use the tool nose angle 0 (refer to Figure 7) Knife (double The following is used as the cutting blade 46. The cutting edge angle 0 is 3 为 for the following cutting blade (2). The following cutting blade is used as the cutting 16 201041705 34018pif (3) Under the condition of (2), In addition, the knife is a mirror-finished knife. (4) Use an elastomer with a sponge hardness of 30 or more for 48 (refer to Figure 3). ',, '輙 (5) Use a sponge hardness of 5 〇. The above elastomer is used as the elastic steepness. Regarding the hardness (Hs) of the cutting blade 46, the blade body (b硬度 hardness is preferably 40 or more, and the blade tip hardness is preferably 50 Cy). As shown in FIG. 9, the second cutting method and the first cutting method three separate the film 12 and the cutting edge of the cutting blade 46, and the product is placed and fixed on the feeding platform 32, and the separation film 12 is separated. The laminate film 1 is cut side by side 16. The ruthenium film [Examples] Hereinafter, the present invention will be more specifically exemplified by the examples of the present invention. Further, the materials shown in the following examples, use Quantity, ratio ^ brother £ > Ϊ Ϊ ', and processing order, etc., without departing from the scope of the present invention, local changes Therefore, the scope of the present invention should not be construed as being limited to the specific examples described below. [1st example], according to the second cutting method (refer to FIG. 7), the two layers of the multilayer film are returned. The upper surface of the shank (10) and the knives are placed on the substrate and the mosquitoes are placed on the feed platform 32, and the film 6 is cut toward the separation film 12 to cut the laminated film 10. 曰 (Laminated film 10) 17 201041705 34018pif The structure of each of the films constituting the layer film 1 is as follows. For the film 12: a film adhesive having a thickness of 40 μm: 14: a thickness of 30 μm, a first film 18a: a TAC film having a thickness of 40 μm (trade name: FUJITAC, manufactured by FUJIFILM Co., Ltd.) 20. Polyethylene glycol having a thickness of 28 μm ((iv) (iv) i alcohol 'PVA) film second protective film 18b: TAC film having a thickness of 4 μm (trade name: PUJITAC, manufactured by Fujifilm Co., Ltd.)

The elongation of the first protective web 18a and the second protective film 18b was 22% in the longitudinal direction (MD), and the transverse length was 18%. T (Example 1 to Example 17 'Comparative Example i to Comparative Example 2) Example 1 f Example 17 and Comparative Example! - The details of Comparative Example 2 and the contents described later are shown in Table 2 and Table 3. In addition, in Tables 2 and 3, the data of the examples i to the examples 17 and the comparative examples 1 to 2 are not referred to as reference examples. The cutting speed v is the measured value, and the hardness of the sponge is measured by the ASKERC hardness meter. (Example 1 to Example 3: Table 2) In Example 1, the cutting speed v was adjusted to 8 ug, and the sea hardness was 50. The elastic body is used as the elastic body 48, and the cutting edge angle θ is 26 and the cutting edge portion has been processed into a mirror surface as a cutting blade. In the example 2, the cutting speed v is adjusted to 9 mm/sec. Except this is 46 201041705 ^4U18pif 'the same as example 1. v 5 weeks was set to 10 mm/sec, except that in Example 3, the cutting speed was the same as in Example 1. (Comparative Example 1, Comparative Example 2: Table 2) In the second example, the cutting speed V was adjusted to 6 mm/sec, and an elastic body of 46 rrt I was used as the elastic body 48, and the cutting edge angle was used. And the knife 4 has been processed into a mirror-shaped processing knife as a cutting knife ft

v was adjusted to 7 mm/sec, except that in Comparative Example 2, the cutting speed was the same as in Comparative Example 1. (Example 4 to Example 6: Table 2) 46 实例 In Example 4, the cutting speed v was adjusted to 8 mm/sec, and the sponge hardness was 30. The elastomer is used as the elastomer 48, and the blade angle θ is 26. Further, the cutting edge portion was processed into a mirror-shaped knives as a cutting knife. In Example 5, the cutting speed ν was adjusted to 9 stimuli/muscle, and the same as Example 4 except for this. In Example 6, the cutting speed v was adjusted to 1 calendar/coffee, and the same as Example 4 except for this. (Comparative Example 3, Comparative Example 4: Table 2) In Comparative Example 3, the cutting speed v was adjusted to 6 mm/sec, and the sea-hardness hardness was 25. The elastomer is used as the elastomer 48, and the knife edge angle e is 26. In addition, in the comparative example 4, the cutting speed v was adjusted to 7 mm/sec, and the same as in the comparative example 3, except that the cutting edge was processed into a mirror-finished knives as a cutting ς 19 201041705 34018pif. (Example 7: Table 2) In Example 7, the cutting speed v was adjusted to 1 mm/sec, and an elastic body having a sponge hardness of 25° was used as the elastic body 48, and the blade angle Θ was 26 and the knife was used. The tip has been machined into a mirror-shaped machining blade as the cutting blade 46. (Comparative Example 5, Comparative Example 6: Table 2) In Comparative Example 5, the cutting speed v was adjusted to 6 mm/sec, and an elastic body having a sponge hardness of 50° was used as the elastic body 48, and the cutting edge was used. A standard knife (a knife that has not been mirror-finished) having an angle Θ of 43° is used as the cutting blade 46. In Comparative Example 6, the cutting speed v was adjusted to 7 mm/sec, and the same procedure as in Comparative Example 5 was carried out. (Example 8 to Example 1: Table 2) In Example 8, the cutting speed v was adjusted to 8 mm/sec, and the sponge hardness was 50. As the elastic body 48, a standard knife having a blade angle of 43° is used as the cutting blade 46. The cutting speed v was adjusted to 9 mm/sec in Example 9, except that it was the same as in Example 8. The same procedure as in Example 8 was carried out except that the cutting speed v was adjusted to 1 mm/sec in the example 10 towel. (Comparative Example 7 and Comparative Example 8: Table 2) In Comparative Example 7, the cutting speed v was adjusted to 6 mm/sec, and the sponge hardness was 30. The body (4) is an elastic body 48, and a cutting blade 46 is used as a cutting blade with a tool nose angle of 20 201041705 J4Ul «pit 43 43°. In Comparative Example 8, the cutting speed v was adjusted to 7 mm/sec, and the same procedure as in Comparative Example 7 was carried out. (Example 11, Example 12: Table 2) In Example 11, the cutting speed v was adjusted to 9 mm/sec, and an elastic body having a sponge hardness of 30 was used as the elastic body 48, and the blade angle Θ was 43°. The standard knife is used as the cutting blade 46. In Example 12, the cutting speed v was adjusted to 10 mm/sec, and the same as Example 11 except for this. (Comparative Example 9 and Comparative Example 10: Table 2) In Comparative Example 9, the cutting speed v was adjusted to 6 mm/sec, and an elastic body having a sponge hardness of 25° was used as the elastic body 48, and the tool nose angle Θ was used. A 43° standard knife is used as the cutting blade 46. In Comparative Example 10, the same procedure as in Comparative Example 9 was carried out except that the cutting speed v was adjusted to 7 mm/sec. (Comparative Example 11 and Comparative Example 12: Table 3) © In Comparative Example 11, the cutting speed v was adjusted to 6 mm/sec, and an elastic body having a sponge hardness of 50° was used as the elastic body 48, and the cutting edge angle was used. The same as the comparative example 11 except that the cutting blade was cut into a cutting blade 46 and the cutting edge was adjusted to 7 mm/sec. . (Comparative Example 13 and Comparative Example 14: Table 3) In Comparative Example 13, the cutting speed v was adjusted to 6 mm/sec, and the elastic body of 21 201041705 34018pif with a degree of 0 of 45 ^^^ was used as the elastic body 48. Use the tip angle as the cutting knife %. In addition, during the invitation, the cutting speed v was adjusted to 7 mm/sec, which was the same as in Comparative Example 13. (Example 13 to Example l5m in Example 13, Table) The sponge hardness was adjusted to a cutting speed v of 8 mm/sec, and a θ was 4 5 . #淮. The elastic body is used as the elastic body 4 8, and the cutting edge angle / π standard knife is used as the cutting blade 46. In the case of I, except for Φ, and 訾ν Τ, the cutting speed ν is adjusted to 9 mm/sec, which is the same as in Example 13. In addition to the example IS i , the cutting speed v was adjusted to l〇mm/Sec in the meeting γ, except that it was the same as in the example 13.丄 = object, Comparative Example 16: Table 3) With the sponge hard 15, the cutting speed v was adjusted to ό mm/sec, and the degree one was 45 = 3 〇. The elastic body is used as the elastic body 48, and a cutting edge standard knife is used as the cutting blade 46. In addition to this, in 16 of the above, the cutting speed V was adjusted to 7 mm/sec', which was the same as in Comparative Example 15. (Example 16: Table 3) In the sponge squeak A 16 , the cutting speed v was adjusted to 10 mm/sec, and the Θ was 45. The elastic body of the ^ is used as the elastic body 48, and the cutting edge 46 is used as the cutting blade 46. = column 17, comparative example 18: Table 3) In the example 17, the cutting speed v is adjusted to ό mm/sec, so that the 22 201041705 34018pif degree is 45° and the tip end portion has been processed into a mirror surface. The elastic body was used as the elastic body 48, and the knife corner knife 46 was used. The utility model was the same as Comparative Example 17 except that the cutting speed was changed by ν in addition to Comparative Example 18. °. ι ‘,, 'mm sec ' (Comparative Example 19, 20: Table 3) Ο ❹ 调整 Adjust the cutting speed V to 6 mm/sec and the sponge hardness to 25. The elastic body is used as the elastic body 48, and a cutting blade 46 having a blade tip of 45 is used. In Comparative Example 20, the cutting speed v was adjusted to be 7 faces/like, and the same as Comparative Example 19 except for the above. (Example Π: Table 3) In the example Π. In the middle, the cutting speed v was adjusted to 1 〇 __, and an elastic body having a sponge hardness of 25° was used as the elastic body 牝, and the tool nose angle Θ was 45. The standard knife is used as the cutting blade 46. (Evaluation) The details of the examples 1 to 17 and the comparative example 2, and the quality of the cut surface (delamination (length in the edge direction, length in the depth direction) and number of cracks) and evaluation are shown in Table 2 and Table. 3 in. The evaluation is set to six levels of "A", "B", "C", "D", "E", and "X". The details are as follows. The length of the length direction is 0.35 or less, and the length in the depth direction is 2.2 "5 positions J^, the number of cracks is 20 or less. " Flat ^ B" · The length ratio in the edge direction is 0.35 or less, and the depth direction 23 201041705 34018pif The length is 0.25 mm or less and the number of cracks is 21~30. Evaluation "C": the length ratio in the edge direction was 0.35 or less, the length in the depth direction was 0.25 mm or less, and the number of cracks was 31 to 40. Evaluation "D": the length ratio in the edge direction was 0.35 or less, the length in the depth direction was 0.25 mm or less, and the number of cracks was 41 to 50. Evaluation "E": the length ratio in the edge direction was 0.35 or less, the length in the depth direction was 0.25 mm or less, and the number of cracks was 51 to 60. Evaluation "X": a case where the length ratio in the edge direction exceeds 0.35, or a case where the length in the depth direction exceeds 0.25 mm, or the number of cracks is 61 or more.

C

I 24 201041705 34U18pii [Table 2]

Cutting speed (mm/sec) Sponge hardness Tip angle off, 1 Crack (average) Evaluation of edge direction length ratio Depth length (mm) Reference example 1 6 50° 26° (mirror) 0.31 0.10 23 B Reference example 2 7 50 . 26° (mirror) 0.25 0.15 17 A Example 1 8 50° 26° (mirror) 0.18 0.11 12 A Example 2 9 50. 26° (mirror) 0.11 0.06 7 A Example 3 10 50. 26° (mirror) 0 0 0 A Comparative Example 1 6 30. 26° (mirror) 0.25 0.18 66 X Comparative Example 2 7 30. 26° (mirror) 0.24 0.17 55 E Example 4 8 30. 26° (mirror) 0.22 0.16 37 C Example 5 9 30. 26° (mirror) 0.21 0.15 34 C Example 6 10 30. 26° (mirror) 0.19 0.13 18 A Comparative Example 3 6 25 26° (mirror) 0.24 0.20 77 X Comparative Example 4 7 25 26° (mirror) 0.24 0.18 64 X Example 8 25. 26° (mirror) 0.23 0.17 53 E Example 9 25° 26° (mirror) 0.24 0.17 41 D Example 7 10 25 26° (mirror) 0.24 0.16 22 B Comparative Example 5 6 50. 43° (standard) 0.44 0.20 23 X Comparative Example 6 7 50. 43° (standard) 0.38 0.25 15 X Example 8 8 50. 43° (standard) 0.31 0.21 13 A Example 9 9 50. 43° (standard) 0.24 0.16 14 A Example 10 10 50. 43° (standard) 0.13 0.10 3 A Comparative Example 7 6 30. 43° (standard) 0.38 0.28 55 X Comparative Example 8 7 30° 43° (standard) 0.37 0.27 48 X Reference Example 8 30. 43° (standard) 0.35 0.25 41 D Example 11 9 30. 43° (standard) 0.34 0.25 32 C Example 12 10 30. 43° (standard) 0.32 0.23 19 A Comparative Example 9 6 25 43° (standard) 0.36 0.30 61 X Comparative Example 10 7 25° 43° (standard) 0.37 0.27 50 X Reference Example 8 25. 43° (standard) 0.36 0.27 46 X Reference example 9 25° 43° (standard) 0.37 0.27 36 X Reference example 10 25° 43° (standard) 0.37 0.26 20 X 25 201041705 34018pif [Table 3]

Cutting speed (mm/sec) Seaweed hardness Tip angle Angle delamination Crack (average) Evaluation Edge direction Length ratio Depth Length (mm) Comparative Example 11 6 50. 43° (mirror) 0.56 0.25 167 X Comparative Example 2 7 50. 43° (mirror) 0.50 0.30 108 X Reference Example 8 50. 43° (mirror) 0.43 0.26 106 X Reference Example 9 50. 43° (mirror) 0.34 0.19 88 X Reference example 10 50. 43° (mirror) 0.25 0.15 38 C Comparative Example 13 6 50. 45° (standard) 0.45 0.21 26 X Comparative Example 14 7 50. 45° (standard) 0.40 0.26 17 X Example 13 8 50. 45° (standard) 0.33 0.22 16 A Example 14 9 50. 45° (standard) 0.26 0.17 18 A Example 15 10 50. 45° (standard) 0.15 0.11 4 A Comparative Example 15 6 30. 45° (standard) 0.39 0.29 61 X Comparative Example 16 7 30. 45° (standard) 0.38 0.28 53 X Reference Example 8 30. 45° (standard) 0.36 0.27 46 X Reference Example 9 30. 45° (standard) 0.35 0.26 36 X Example 16 10 30. 45° (standard) 0.33 0.24 21 B Comparative Example 17 6 50. 45° (standard) 0.59 0.27 202 X Comparative Example 18 7 50. 45° (standard) 0.53 0.32 130 X Reference Example 8 50. 45° (standard) 0.42 0.26 112 X Reference Example 9 50. 45° (standard) 0.34 0.18 111 X Reference example 10 50. 45° (standard) 0.26 0.15 41 D Comparative Example 19 6 25. 45° (standard) 0.38 0.31 78 X Comparative Example 20 7 25. 45° (standard) 0.38 0.28 56 X Reference example 8 25. 45° (standard) 0.37 0.28 51 X Reference example 9 25° 45° (standard) 0.37 0.28 40 X Example 17 10 25. 45° (standard) 0.35 0.25 22 B According to the results of Table 2 and Table 3, the evaluations of Examples 1 to 17, Example 1 to Example 3, Example 6, Example 8 to Example 10, Example 12, Example 13 to Example 15 All are "A" and the best quality. The evaluations of Example 7, Example 16, and Example 17 were all "B", and the quality was slightly lower than that of the above example, but the crack was 30 or less, which was substantially good. The evaluations of Example 4, Example 5, and Example 11 were all "c", but were levels that were not practical in terms of practicality. On the other hand, it is known that the evaluation of Comparative Example 1 to Comparative Example 20 is such that the quality of the "x" or "E"' cut surface is lowered. In this case, it is known that the cutting speed is adjusted to 8 mm/sec or more, preferably 10 mm/sec or more, and the laminated film is cut, whereby the TAC having a low elongation is used. In the case of the laminated film of the film, a good quality of the cut surface can also be obtained, especially by the above conditions.

When any one of the conditions (5) is combined, the quality of the good cut surface can be stably obtained. J, that is, it is considered that although the elongation in the longitudinal direction (MD) is 22%, the elongation in the transverse direction (TD) is 18%, and the second protective film (10), the quality of the cut surface is still improved. ^ The cutting speed v is adjusted to 8 / ', ^ δ mm / sec or more, preferably adjusted to 10 mm / sec or more, whereby the adhesive 14: the bending deformation of the protective film 18a is small (The first maintenance cut is completed, therefore, it is not easy to protect the film plate, and it is generally considered that the hardness of the sponge is 3 〇. Above = the elastomer is used as the elastic body, whereby the physical pair is used; The deformation of the laminated film 1G in the process of the elastic film 48 and the multilayer film 16 is changed, and the crack is formed, and the crack is cut. ^Inhibition of the film is not easy to occur [Second example] 27 201041705 According to the second cutting method (see FIG. 9), the cutting edge of the separation film 12蛊 cutting blade 46 is opposed to each other, and the laminated film 1〇 is placed and fixed on the entrance platform 32, from the side of the separation film 12 The multilayer crucible 16 cut the laminate = 10 to obtain Example 18. 'The composition of the laminated film 1G of the example 18 and the above The i-th example is the same. Further, as shown in the following Table 4, the cutting speed v is adjusted to 6 mm/see, and the elastic body having a sponge hardness of 30 is used as the elastic body 48, and the blade angle is 26. The processing blade which has been mirror-formed in the A part is used as the cutting blade 46. After confirming the quality of the cut surface after cutting, the length ratio in the edge direction is 〇, the length in the depth direction is 〇mm, and the number of cracks is also 〇. [Table 4] ' ~ Cutting speed (mm/sec) Sponge hardness ^ Blade angle ¥ μΙΖ Edge direction length ratio Layer depth plague rrvm, crack (average) Example 18 6 30° 26° (mirror) 0 0 0 It is considered that although the cutting speed v is as slow as 6 mm/sec, the quality of the cut surface is good, because in the second example, the cutting blade 46 is adhered to the separation film 1h by j 1 "the first protective film 1Sa (5) The first protective film (8) which is harder than the adhesive 14 is present in the lower layer, so that the bending deformation of the third protective film 18a of the axis of the adhesive enthalpy is hardly generated, whereby the generation of cracks is affected. Suppression. [3rd example] Then 'when the size of the inflammation Each side is about lm or more, and the cut-off load applied at the same time is more than 0N' and the (4) domain secret elongation is higher than 28 201041705 ^4U18piI. In order to find the appropriate conditions, the reference example and the example 19 are confirmed. In the reference example, the cutting was carried out under the same conditions as in the above-mentioned Example 1. In this reference example, the delamination and cracks were deteriorated. In terms of manufacturing precision, the blades are not made to the same height in the longitudinal direction. Therefore, if the length of the simultaneous cutting is long, the load will concentrate on the portion of the blade that is locally sturdy at the moment of the cutting start. Therefore, it is generally considered that the blade is bent or swayed in the above-mentioned delamination and crack. The reason for the difference. On the one hand, in Example 19, the hardness of the knife material was increased to make the hardness of the knife large to 8 。. (Hs), so that the hardness of the blade is 72. After confirming the quality of the cut surface after cutting, a good result was obtained in which the length ratio in the edge direction was 0, and the length in the depth direction was 〇mm f 4 and the number of slits was also 〇. It is generally considered that the reason is that the hardness of the blade material is increased, so that even if a strong force acts on the blade member, the blade member is not easily bent or shaken, and as a result, the occurrence of delamination and cracking is suppressed. ® [Table 5] Cutting speed (mm/sec) Sponge Hardness Tip angle Knife material hardness (Hs) Debonding crack f (average) Tip edge Body edge length ratio Depth Length (mm) Refer to Example 8 30. 26° (mirror) 50 0.24 0.17 22^ Example 19 8 30. 26° (mirror surface) 80 72 L 0 0 〇s The method of cutting the laminated body of the present invention is not limited to the above-described embodiment. Of course, various 29 201041705 34018pif may be employed without departing from the scope of the present invention. . The present invention is disclosed in the preferred embodiment as the above, but it is not intended to be used in the context of the present invention, and the scope of the present invention is attached thereto. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a laminated film of the present embodiment in an omitted manner. FIG. 3 used in the cutting method of the first cutting embodiment. Fig. 4 is a view showing a configuration of a second cutting device used in the cutting method of the present embodiment. Fig. 5 is a view showing the second cutting device as seen from the upper surface. Fig. 6 is a perspective view showing an example of a drive mechanism in a press portion of the second cutting device, partially omitted. Fig. 7 is a view showing a method of cutting a laminated film (also for the i-th cutting method). Fig. 8A to Fig. 8D are diagrams showing the passage of the cutting blade with respect to the laminated film, and Fig. 8C shows the use of a film of triacetyl cellulose (TAC) having a high elongation. Laminated film Fig. 8D shows a state of cutting of a laminated film (sample 2) using a TAC film having a low elongation. Fig. 9 is an explanatory view showing a second cutting method.

34Ul«piI [Description of main components] 10: laminated body 12; separation film 14: adhesive 16: multilayer film 18a: first protective film 18b: second protective film _ 20: polarizing element 0 30A: first cutting device 30B: second cutting device 32: feed platforms 34, 54: conveying mechanism 36: cutting jig 38: moving mechanism 40: plastic plate 42: pressing pan 44: abutment 46: cutting blade 48: elastomer 50: delivery portion 52: pressing portion 53: winding portion 56a: first conveying portion 56b: second conveying portion 31 201041705 ^WJtspir 58 : film 60a: first nip roller 60b: second clip 62: dancer roller 64: Guide rollers 70a to 70d, the support shaft 72: the frame 74a: the first drive portion 74b: the second drive portion 76a: the first connection portion 76b: the second connection portion 77a: the first long hole 77b: the second long hole L 78a: first eccentric cam 78b: second eccentric cam 80a: first shaft 80b: second shaft 82a: first flywheel 82b: second flywheel 84a: first motor 84b: second motor 86a: first timing belt 86b : 2nd a temple gauge belt ta: protrusion amount 32 201041705 j^tuiopii tb : height v: cutting speed Θ: nose angle

33

Claims (1)

201041705 34018pif VII. Patent application scope: _ A method for cutting a laminated body, by using a cutting jig (36), a laminated body (10) in which one or more thin films are laminated via an adhesive (14) The cutting method of the laminated body is characterized in that the cutting jig (36) includes at least a cutting blade (46), and the cutting blade (46) with respect to the laminated body (1) The entry speed (v) is adjusted to be 8 or more coffee, and the above product (10) is cut off. 2. The cutting method of the laminated body according to the scope of the patent application, wherein the cutting speed of the cutting blade (46) relative to the above-mentioned laminated body is adjusted to 10 mm as measured. /sec or more, the layered body (10) is cut. 3. The method of cutting a laminated body according to the first aspect of the invention, wherein the material angle (8) is 43. The following _ rides as a broken knife (46). 4. The cutting method of the laminated body according to the third aspect of the patent application, wherein the cutting edge is used as the cutting edge angle (Θ) is 3〇. The following cutting knife (46). 5. If the method of cutting the method described in the fourth item is applied, the cutting blade having the tip end portion that has been mirrored is used as the above-mentioned cutting 34 201041705 j^fuidpir knife (46). In the case of the method of cutting the laminated body described in the fifth paragraph of the patent garden, the hardness is (10) when the cutting load generated at the same time exceeds 8 〇〇〇〇. (5) The hard money of the knife-edge tree 70. (Η = Knife = Knife as the above-mentioned cutting blade. The above-mentioned cutting method. 7. The cutting method of the laminated body according to the above-mentioned item, the cutting jig (36) includes the cutting. Knife (46), + break = 4, supported abutment (9), and the above two two: ^, the grounding of the elastomer on the abutment (44) is more than the elasticity of the elastic body as the above The elastic body (48) is a method for cutting a layered body according to item 7 of the sea, wherein the hardness of the sponge is 5 G. The above elastomer is used as the above-mentioned elastic body. In the method for cutting a laminated body according to the first aspect of the invention, the laminated body (10) includes a separation film ((H) and a layer of the above-mentioned adhesive layer (the above-mentioned layer of the above agent) In the above-mentioned separation film method, the multilayer film (16) including the above-mentioned one or more layers of the laminate according to the ninth aspect of the application of the ninth aspect of the invention is interposed with the above-mentioned viscous 35 201041705 J4ui« The pirant (14) is laminated on the separation film (12), and the multilayer film (16) includes a laminate a second protective film (18a) on the adhesive (14), a polarizing element (20) laminated on the ith protective film (1) a), and a protective film laminated on the polarizing element (2) 18b) 11. The method for cutting a laminated body according to the first aspect of the present invention, wherein the first protective film (18a) and the second protective film (the rib) are composed of cellulose triacetate. The elongation in the direction is less than 42%, and the elongation in the transverse direction is less than 43%. 12. The method of cutting the laminated body by laminating the adhesive (14) by the cutting jig (36) The laminated body of the film of the enamel layer or more is cut, and the method of cutting the laminated body is characterized in that the laminated body (10) includes a separation film (12), the above-mentioned adhesive (14), and a separator. The above-mentioned separation film (16) is laminated with the above-mentioned separation film (16), and the laminate (10) is applied from the side of the separation film (12) toward the multilayer film (16). 13. The cutting method of the laminated body according to claim 12, wherein The multilayer film (16) includes a first protective film (18a) laminated on the adhesive (14), a polarizing element (20) laminated on the ith protective film (18b), and a laminated layer on the polarizing element. (2) The second protective film (18b) of the above-mentioned first protective film (18a) and the second protective film (18a). 18b) It consists of cellulose triacetate, the elongation in the longitudinal direction is less than 42%, and the elongation in the transverse direction is less than 43%. 37