TWI291920B - Multi-layer films having at least three bias-cut layers - Google Patents

Description

1291920 V. [The invention belongs to the invention. The thermoplastic film which is driven by a shaft is cut at different chamfer angles. - [There are two processes in the hair mask or the manufacturing process, and the angle is chamfered and pressed into two layers. Film merging, the direction of the upper angle of the thermoplastic film. The technique for changing one or four layers of film from a single axial direction in this process to produce a mechanical direction with the heat of the two layers in the 45 degree machine Field] The slant layer cut film, the special multi-layered bevel film is used to change the multi-layer film of the machine type on the thermoplastic film, and the original single axis is formed by cutting the thermoplastic film at the same chamfer angle. The thermoplastic film-shaped plastic film traveling at an angle of 45 degrees in the mechanical direction of the machine is at an angle of ± 45 degrees with each other 'with a beveling cutter and a multi-layer single 'this thermoplastic film is from the direction angle. This is a multi-layered technique in the prior art. There is a two-layer interlaced film of thermoplastic film with a ± 4 5 thermoplastic film, followed by a two-layer staggered interlacing. In this case, the single axial travel, the step on the film does come.

Page 4 This multilayer film is essentially manufactured in three steps, as shown in the first figure, in the first step. As shown in the second figure, the second step is a roll, and the axial direction of the mechanical direction is the same as the chamfer angle': two films are used to change the film to press the two beveled films to form a staggered press: The 'third sigma layer film is shown. Soil: Figure _ shows the film of this film, and the thermoplastic film resin is poured into an extrusion f: 510. The hopper is 1 1291920. 2) Forming the bubbles 15 in the [m? out of the resin and continuing upwards in the direction of the ^2, will reach the roller 16 and the moon! The roller 16 and the roller 17 press it to form a thin one. r, the film tube is horizontally moved by the roller 16 and after the roller is pressed, and then the film tube will pass the process =:: the lower part of the sub-19's reach-stretch and (4) will be stretched a series of stretches The roller 21 is stretched, and the tube L::f 21 is stretched in the axial direction (film traveling direction). The film is fired f ί ϊ i if the case * the film tube will pass through the M section 2Q above the decanter 22 : ΐί After the film tube passes through the process section 2° and then passes through the roller 24 on the iL and enters between the driving rollers 23, the total amount of the film wound on the tubular winder 1 on the cylindrical winder 24 is sufficient and formed. 'Finding & Volume 25, this film tube roll will be removed from the barrel winder. = The mechanical direction angle of the film tube 26 shown in the fourth figure is either rolled or thinned, and the direction on B is the same as that of the mechanical operation during the entire film manufacturing process. The film tube 26 wound around the cylindrical winder 24 is not a single-layer thermoplastic film, and the film tube is extruded into a tubular or cylindrical shape, so that the film tube is generally referred to as a Glue or film tube. wChamfer I 30 As shown in the second figure, the 'film coil 25' of the single axial travel film 26 will be placed in a rotating device 31 driven by the motor 32, which will rotate and expand This thin film tube 26, the roller 33 is thin

Page 5 1291920

V. DESCRIPTION OF THE INVENTION (3) The second tube 26 is withdrawn from the film tube coil 25. The film tube will be advanced on the hollow two-turn mandrel 34, and the rotating mandrel 34 has an independent function 7 to support the rotation of the mandrel. 35 'then film tube: degree angle chamfering' in this prior art 'angle variation knife=5 ^The film 37 formed after the beveling will be wound on the_cylinder winder 38 ^j winder There is a separate drive motor and the film 37 is wound into a film which is the same as the film 9 which is no longer a film tube, and the film has a mechanical orientation angle of ± 45 degrees. The figure is wound into a 37-wound film 43 and a mechanical side 46, 47 and 43, and a thinner, by means of an application, a device 4 for manufacturing a staggered laminated film by the interleaving device 5 2, for example. Placed on top of a film roll, there is a preferred interlacing of the cross-rolling of the cross-rolling film which is preferably applied by a pressurizing agent to rapidly cool a thin film. On the upper part of the apparatus 41, the upper part of the apparatus 41 has a film-bonding film 44 which is formed by a film roll 39 such as a pressure roller 45 and a cooling roller. The dihedral angle is followed by The roller 45 and the extrusion molding die 44 are composed of an extruder 48 without pressing the roller 45 and the cold extrusion film 43 perpendicular to the pressing film 50, such as a roller 4 9 on the bevel film. The machine is placed on the film unwinding film toward each other. The film is pressed by a roller 46 to press a pressing agent containing polyethylene, and the traveling direction formed by the film 44 between the rollers 46 is intermittently provided. The rear and the winder 52 have a mechanical direction angle, and the film is a polyethylene mixed mold in the case where the film is formed by the film 3 7 and the film is separately developed into the same extrusion die as shown in the thin figure. Before the front, this press fit 'roller 4 9 changed the wrong pressure film on the roll film, this

$6页 1291920

V. INSTRUCTIONS (4) The mechanical direction of the third pattern is on the two films. The angles to be emphasized, as previously described in the prior art, are formed by chamfering the two layers of the film which are interlaced with each other. As shown, the two corners and in the mechanical direction are mentioned in the prior art, the four chamfered layers have phase features and the layers will be at the same angle of expansion toward the film roll 37, in which the mechanical contracting of the layers mentioned above is the same. Two films 43 are joined in the same direction and housed. There are only two beveled films on the film that will still be on each other. For example, the fifth direction angle, the mechanical direction and the other two layers will be interlaced with the 44 points of the process in a machine-compressed film shown in these angles, the intersection direction is the same, although the direction of the film can be further The third aspect of the present invention is a multilayer film, the multilayered bevel layer, wherein at least two layers of the bevel layer have at least three layers or more. In particular, it is a multi-different mechanical direction angle that is interlaced and pressed. The chamfering of more layers [two of each chamfered layer of which at least three or more and at least two layers of beveled sound have an angle of between 20 and 70 degrees ... have different mechanical orientation angles. 4. [Embodiment] Some embodiments of the present invention will be described in detail, and the present invention can be broadly reproduced as follows. However, the scope of the present invention is not to be construed as being limited to the embodiments disclosed herein. The scope of the patent application filed later is subject to change. Only the restrictions of the case, but should

Page 7 1291920 V. INSTRUCTIONS (5) In general, the present invention can use all of the prior preparations. However, the present invention differs from the prior art in that a multilayer film composed of a mechanical orientation film is modified in the present invention to produce Films with the same visibility must be slanted at different angles with a bevel angle greater than 45 degrees Celsius for 45 degrees, since there will be no identical film tube, the width ratio 'all systems' .

When the slanting cut is made in the uniform manufacturing process, the thin film tube 6 6 film is narrow and the same chamfer angle. Since the modified film 37 is a very important step, the film of the film tube is required to be wide, "the thin moon cut, the width of the thin-cut beveled film g cut by such a knot J, because j' Strictly speaking, the system - generally set in the manufacturing process by different processes and equipment must have certain widths or even the beveling device shown in the film will be compared, when the chamfer angle will be more oblique The chamfering angle will hinder the manufacturing of the angles that will change during the interlacing press. In order to control the manufacturing requirements in order to make the manufacturing specifications effective, it is not necessary to select the desired mechanical direction angle θ. The press-fitted multi-twisted manufacturing has three different layers: one starting point, and the multi-layer film has a thin sleepability of the angle of the mechanical direction, and can also be used for β s. However, each can produce a desired thin starting point, that is, : as the starting point, in the manufacture of two sounds::: the angle of the corner | the layer has a significant difference between the machine and the angle of the different 'select more layers of the chamfer layer all the parameters of the entire equipment of at least two layers of equipment of the same size On which of the above nine corners When the film is '' _ 1291920, the invention indicates that the parameters on the manufacturing or equipment will be the same as the film in the direction of the machine direction, when the cut film is pressed, the invention is adjusted by the manufacturing tool to be sufficient to cut out the required production. After the device has been used with the circumference of the tube 26, the roller and the winding, and the different diameters of the full diameter of the different circumferences, the different widths of the film are manufactured to produce the film width. Use only a single-turn mandrel 34 film tube. Significantly different, in addition, the manufacturing has parameters that do not have to be adjusted to the process or equipment to have the same width. The method is long and the film has different circumferences. The other has a single-axis film tube, which is different in width and diameter to handle the use of the extrusion former 13 and the tube 2, and the bubble 15 in the extrusion is long in terms of inclination. At least the film to be traveled is required, and then it is assumed that there are two film forming processes of the film toughening process 20 and the film tube of the degree, and the film of the cutting device must be made at different angles or by the film generating device 10 in the beveling process. A different section of a film production device is adjustable with a right

Many kinds of heat can be produced in the manufacturing process of the present invention, and preferred thermoplastic films are polyfluorenes, polyethyiene and polypyrene (p〇lypr〇pyiene). Ethylene

In the invention, the car father's pressing system

ΛΑ + into the old lL ^ 〇 私 为 为 为 为 为 为 为 挤压 挤压 挤压 挤压 挤压 挤压 挤压 挤压 挤压 私 私 私 私 私 私 私 私 两 两 两 两 两 两 两 两 两 两 两 日 日 日 日 日 日 日 日 日 日A. Ethylene and low-density polyethylene, 曰人从&口口J is a N-degree concentrating by Zhanyi for the β ®... 〇 ,, this sizing agent will become a layer of 驭, 骐No, right #人勹夕膜膜八有钱机械方向角也不斜切. When used

1291920 V. INSTRUCTIONS (7) The pressure-sensitive agent produces a further layer of thin layer in the middle of the pressure & two chamfering layers: the multilayer film which will be in the overlap after the occurrence, however, the so-called repeated The crucible produces a three-layer multilayer film. The method, for example, heating two people = two can be used to join the chamfer layer to another film, which will not generate heat in the multilayer film or on the wide side of the film: Use: Hot roller to add adhesive along the periphery of the film, no matter which kind of heat is used in the above process, 7 kinds of squares can be used to make the multilayer film. Features of the Multilayer Concrete of the Invention In the preferred embodiment 1, one elbow is illustrated by the following two embodiments. In the hopper 12 of the hopper 12, the 'remelting fat will be injected into the one (four) shaper f to form a film tube, and the film tube is then, for example, 15 , the film bubble will be squeezed into a single axially traveling film tube roll: extension and toughness Refining, re-winding into a same extrusion condition, bubble size, under the same conditions, that is, at the roller speed of the process, and extending to the toughening process section and the winding section of the coil 25. Another single-axially traveling-film roll of polyethylene film tube 2^=rotating mandrel 34 is moved, obliquely inserted into the rotating device 31 and then unrolled in the film tube roll 25 and cut into two rolls of chamfered film 5 The two 38s are placed at a bevel angle of ±4 degrees. The width of the beveled film is nominal = the chamfered film 37 is re-wound on the winder = six (b), the two rolls are chamfered: 9 inches, as shown in the sixth figure (a) and again, two rolls The chamfered film will be unwrapped at a mechanical direction angle of ±40 as in the third, to produce a square-direction from the film spreader 4丨 and 4; 1291920 V. INSTRUCTION DESCRIPTION (8) The manufacturing process as described will be repeated for the film roll 39 of the system, in the film manufacturing process 2, the film 37 is wound into a chamfer angle of 35 with a diameter of 35 Degree, the thin bubble is larger and the bevel is cut. As shown in the sixth (d) and sixth (e) figures, the nominally 59-inch film roll 39 has a mechanical of ± 53 degrees: the direction = two is wound by the beveled film 37 as shown in the third figure. The direction is from the two corners of the film spreader 41, and the two rolls of the chamfered film will be the interlaced film as shown in the sixth figure (f). 2 is unfolded to produce a two-volume three-layer interlaced film as shown, and will be placed in the film expander 41; ': (C), and the sixth layer (1) all four kinds of chamfer angles of seven layers of calcium , open and interlaced into a sixth figure (g) does not have the arrow ^ layer as shown in the sixth figure (g), the film roll at an angle of ± 53 degrees may be prepared 1 ^ not w / due to a roll The mechanical direction of the film roll is reversed and cross-stitched. The direction of the mechanical direction angle of the mechanical direction of the coil is ±40 degrees. The orientation of the machine direction angle is optional. In this figure, the machine is in the chamfering or mechanical direction. The second is ± 2 degrees, and likewise, the ± symbol of the sub-enthalpy represents the tolerance of the tolerance film. The width of the upper limit indicates the openness enhanced in the present invention in the case of the least damage thinness. The most obvious property of the single axial travel is the tear tearing of the film. In the prior art, the film of P ^ f is extremely easy to mechanically The direction of travel, the father's wrongly pressed film strengthens this property,

Page 11 1291920 V. Inventive Note (9) In the present invention, when the film to machine tearability is more than 43 degrees in the middle, and the staggered synthesis is different in the other layers, the range is up to 50, and is applied in In the invention of the invention, the 48-degree pressure synthesis of the process is stronger than that of a multi-staggered press-fit membrane. The degree of work between the two sides is compared with the previous one with ±56. The method is thin 'however in the process of gold: 1 the best implementation of the manufacturer to create a four-layered bevel film, then the film is then 'staggered to make a film on the machine, this is not The product will be applied according to the mechanical direction, from which the different mechanical direction angles of the remaining two or two interlaced films are used to limit the excellent products such as the kanban. The above embodiment has an angle of 46 degrees. Soil selection of two layers of chamfered film, the layer of chamfered film is interlaced, and the film is to be synthesized. The seven-to-one chamfered layer has a directional angle. The change of the mechanical side is strong. The slogan of the multi-layer film is between the three-angled The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention. Modifications may be made without departing from the spirit and scope of the invention, and such changes should still be in accordance with the invention. Therefore, the scope of the present invention is defined by the scope of the following patent application. 1291920 Brief Description of the Drawings V. [Simple Description of the Drawing] The first figure shows an isometric coordinate view of a thermoplastic film device manufactured in the prior art; 2 is an isometric view of a prior art beveling device; the third view shows an isometric coordinate view of a prior art press-cut bevel film device; and the fourth figure shows a prior art The upper view of the mechanical direction angle of the film before cutting; the fifth figure shows the four layers of the prior art, each layer (1), (2), (3), (4) has the same mechanical direction angle chamfer a top view of the film; and a sixth view showing the two films (a) and (b) having a mechanical orientation angle and interleaved to form a staggered press film (c), the two films (d) and (e) having The two films (a) and (b) have different mechanical orientation angles and are alternately pressed to form a staggered press film (f), and then the two interlaced press films (c) and (f) are pressed into the multilayer film of the present invention (g). ). DESCRIPTION OF REFERENCE NUMERALS 1 0 film generating device 12 feeding hopper 1 3 extrusion forming machine 1 4 forming die 1 5 bubbles

Page 13 1291920 Simple description of the figure 16 Roller 17 Roller 1 8 Roller 19 Roller 2 0 Stretching and toughening process section 21 Roller m 22 Roller 2 3 Drive roller 24 cylindrical winder 2 5 film tube roll 2 6 film tube 3 0 chamfering device 3 1 rotating device 32 motor 33 roller. 3 4 rotating mandrel 3 5 beveling tool 37 film 38 cylindrical winder 3 9 film roll 40 manufacturing interlaced press Membrane device 4 1 film spreader 42 film spreader 43 film

Page 14 1291920 Simple description of the film 44 film 4 5 pressure roller 4 6 cooling roller 47 extrusion die 48 extruder 4 9 roller 50 interlaced film 52 winder

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Claims (1)

正本丨. _年月日日修正_ Sixth, the scope of application for patent application scope: 1. A multilayer film, comprising: at least three layers of beveled thermoplastic film, the three-layer beveled thermoplastic film at least two layers of oblique The slice has a different mechanical orientation angle greater than 2 degrees. 2. The multilayer film of claim 1, wherein the thermoplastic film comprises I olefins 3. The multilayer film of claim 2, wherein the polyolefin comprises polyethylene 〇 4 · a multilayer film comprising: at least three layers of chamfered thermoplastic film, the beveled thermoplastic film There are different mechanical orientation angles greater than 2 degrees, respectively. 5. For the multilayer film of claim 4, the mechanical direction angle varies from 3 to 50 degrees. 6. For the multilayer film of claim 4, the mechanical orientation angle is between 20 and 70 degrees. 7. The multilayer film of claim 4, wherein the multilayer film comprises a four-layer chamfered polyolefin film, and the mechanical orientation angle of the two layers in the beveled polyolefin film is Page 16 1291920 _ Case No. 92104969_年月日日 Amendment _ 6. The patent application scope is ±40 degrees and the mechanical orientation angle of the other two layers is ±53 degrees. 8. The multilayer film of claim 4, wherein the multilayer film comprises at least four chamfer layers having different mechanical orientation angles. 9. The multilayer film of claim 4, wherein the multilayer film comprises four layers of chamfered polyolefin film, the layers of the chamfered polyolefin film having different mechanical directional angles. 10. The multilayer film according to claim 9 of the patent application, wherein the chamfered polyolefin film has the smallest difference in mechanical direction angles from each other. 11. A multilayer interleaved laminate film comprising: at least three layers of chamfered thermoplastic film having a mechanical orientation angle, the beveled thermoplastic film comprising at least two chamfer layers having different mechanical orientation angles greater than 2 degrees. 1 2. The multilayer interlaced film of claim 11 of the patent application, wherein the mechanical angular angle is between 20 and 70 degrees. 13. The multilayer interlaced film according to claim 11, wherein the multilayer interlaced film comprises four layers of chamfered polyolefin film, and the mechanical orientation angle of the two layers of the four-layer chamfered polyolefin film is ± 40 degrees and the mechanical orientation angle of the other two layers is ± 53 degrees 0 Page 17 1291920 _ Case No. 92104969_年月日日___ VI. Patent Application Range 1 4. For the multilayer interlaced film of claim 11 of the patent scope, the thermoplastic film comprises polyethylene. Page 18