TW201219416A - Film for package, method of fabricating the same and film product for package - Google Patents

Abstract

A film for package with excellent transversality and a method for fabricating the same are provided. The film for package includes a resin composition of polymethylpentene-1 series, which includes (A) 100 parts by mass of polymethylpentene-1 series resin and (B) 0.5 to 60 parts by mass of polybutene-1 series resin and/or 0.1 to 20 parts by mass of liquid paraffin, wherein the total amount of ingredient does not exceed 75 parts by mass; and the film satisfies that (1) the cutting deviation magnitude( δ ) in a film cutting test is no more than 10 mm, (2) the ratio P/Q of the tensile elongation of the end part of the film in longitudinal direction (P) to the tensile elongation of the end part of the film in lateral direction (Q) is no more than 0.25, and (3) the film thickness is 3 μ m to 30 μ m.

Description

201219416

L. Description of the Invention: [Technical Field of the Invention] The present invention relates to a film for packaging which is generally used for packaging of foods in general households, food sales, food service, and the like. In more detail, it is a method for producing a film for packaging and a film for packaging which have excellent cross-cut properties, and a film product for packaging which is used for storing the film for wrapping in a storage box such as a cutting aid such as a non-serration. . [Prior Art] Previously, the film for packaging was provided in the form of a wound fiim accommodated in a rectangular box storage case as shown in Fig. 5, and the required amount was pulled out from here. For the length direction * transverse cut and for use. The method of transverse cutting is most commonly a method of using long strip-shaped serrations such as a cover plate provided in a storage box. However, ^, -~ 琚 仔 仔 在 在 在 在 在 在 在 在 在 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚 琚Powder W material instead of = knife cutting method (specialized 1); method of ^= cutting aid in the length direction of the lang (patent document 2); method of cracking in y (special 3). It is called the same, = needle ^ along the (four) with the cutting to the front full | shooting Jf i #j sex countermeasures are not sufficient, and forcibly cutting 'even if the initial cut is along the 丄: no:: 201219416 direction It tends to gradually turn in the direction of the length from the middle, but it is not practical. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Patent Laid-Open No. Hei 61-217345 (Patent Document 2) Japanese Patent Laid-Open No. Hei No. Hei No. 424 No. 3 [Patent Document 3] In the meantime, the present inventors have conducted intensive studies to obtain a film for packaging which is excellent in cross-cutting property, and found that it contains a polymethyl lysine-based resin composition and has a specific physical property value. The film can achieve the above purpose. The present invention relates to a film for packaging, which comprises a polymethylpemene resin composition, and a composition of a resin of the upper base of the pentyl-1 is contained in parts by mass and 100% of the resin is diluted. ((10) Addition 1) Resin 0.5 mass> Weight t H or liquid stone soil 0 coffee paraffln) ο. 1 part by weight ~ to the foot i ώ ^ (the total amount of 2 does not exceed 75 parts by mass, and full () The cutting deviation amount (4) in the film cutting test is 1 〇 _ or less. The ratio of the end extension m (four) end extension (p) to the lateral elongation (Q) is 0.25 or less; 3) The film thickness is 3 μιη to 30 μχη; 201219416, the 'cutting deviation amount (δ) is a rectangular pain having a side α (length 3〇〇mm) (length 22Gmm) and parallel to the longitudinal direction of the continuous film as a test piece 'In the middle portion of the strip edge α, a slit having a length of 3 mm was cut in. The hand was stretched and cut at the two corners of the side of the slit to cut the film. The maximum deviation (unit: mm) of the squall line from the reference line descending perpendicularly from the slit to the other side α; the ratio P/Q will have a side Α (length 60 mm) and a side B (length 20 _) and A rectangular film having a side a parallel to the longitudinal direction of the film was used as a test piece, and the elongation (P) of the test piece at the time of stretching one side A of the test piece at a tensile speed of 2Q () mm/min, and the test except for the test The ratio of the elongation at break of the test piece at the time of the tensile test in the same manner as in the above (p), the side A of the >} is parallel to the transverse direction of the film. The present invention provides a film for packaging described above. In the above method, the polymethylpentene-1 resin composition is extruded by a T-die to obtain a film for packaging having a film thickness of 3 μm to 30 μm, and the polydecylpentene resin composition is contained ( Α) 100 parts by mass of the polydecylpentene-1 resin, and 5 parts by mass of the (meth) polybutene-1 resin 〜 to 60 parts by mass and/or 0.1 parts by weight to 20 parts by weight of the liquid paraffin, wherein the component ( The total amount of Β) is not more than 75 parts by mass; in the above extrusion, the lip opening of the 〇 opening Φ opening degree) R (unit μι The film thickness t (unit: μπ1), the discharge speed Ε (unit: cm3/hr) and the air gap A (unit cm) per 1 cm of the mold width of the resin composition extruded from the mold satisfy the following formula 1 :

S 7 201219416 15$(l/t—l/R) · (E/At)xl〇〇$900 (Effect of the Invention) The film for packaging of the present invention is excellent in cross-cut property, so that even if it is housed The box of the wound film does not have any cutting aid such as saw teeth, and can be easily and well cut when the required amount of the film is pulled out from the box, so that the safety problem of injuring the hand or the like can be fundamentally solved. The problem that must be separated when the paper storage box and the metal ore are discarded. [Embodiment] The film for packaging of the present invention comprises a polydecylpentene a resin comprising (A) a polydecylpentene-1 resin and (B) a polybutene-1 resin and/or a liquid paraffin. Things. The polydecyl pentene-based resin as the component (A) includes, in addition to the homopolymer of 4 decylpentene-1 or 3-decylpentene-1 (h〇m〇p〇lymer), 4- Copolymer of methylpentene-1 and/or 3-decylpentene-indene with other alpha-olefins. The α-olefin may be a single species or a combination of two or more. Examples of the α-olefins include ethylene, propylene, ?butene, decene-hexene, octyl octene, nonene, 1-dodecene and the like. Component (B) is a polybutene-1 resin and/or a liquid paraffin. The above polybutene-1 based resin includes, in addition to the homopolymer of butene 4, a copolymer of butene q and other ?-indole hydrocarbon. The α·olefin may be a single species or a combination of two or more. Examples of the α-olefin include ethylene, propylene, decene-hexene, octene, 1-decene, and 1-dodecene. The liquid paraffin is a chemically stable substance f which is a liquid at a normal temperature mainly composed of a chain saturated hydrocarbon. Commercially available examples (trade names) include Daphne (6) cp of Idemitsu Co., Ltd., and Japan 201219416 MORESCO-WHITE of MORESCO Co., Ltd., HICALL K of Kaneda Co., Ltd., etc. The amount of the component (B) is preferably 1 part by mass to 6 parts by mass, preferably 1 part by mass to 2 parts by mass, based on 1 part by mass of the component (A). The liquid paraffin is preferably 1 part by mass to 2 parts by mass, more preferably 1 part by mass to 12 parts by mass. In the case where both the polybutylene resin and the liquid paraffin are used, the respective amounts are in the above range, and the total amount is from 0.6 parts by mass to 75 parts by mass, preferably from 2 parts by mass to 35 parts by mass, More preferably, it is 3 parts by mass to 25 parts by mass. If the composition is at the above upper limit, the resulting film is inferior in cross-cut property. When the inside of the component (B) is less than the above lower limit, the adhesiveness required as a film for packaging is inferior. In the above polymethylpentene-1 resin composition, an auxiliary material may be added without departing from the details of the present invention. The physical properties necessary for imparting and adjusting the film for packaging, such as adhesiveness or transparency, by the above-mentioned auxiliary materials, include thermoplastic trees other than polymethylpentene-anthracene resin, propylene and poly, , liquid polybutene (hydrogenated polyisobutylene) η work aid, antioxidants, neutralizers, anti-fogging agents, slip agents and other additives. The total amount of the above-mentioned sputum is lower than the blending mass fraction of the flat sapphire: the finger sap and the liquid processing aid, and == the amount of the second part ===== the above-mentioned poly-double-axis extruder, pressurization #人In order to correct the film (4), the component (A) and the component (B) and the optional component of the above 9 s 201219416 39548pif can be melted and kneaded by a known kneading device such as a pressure kneader or a mixer. A known method such as strand cutting or underwater cutting is used to pelletize the obtained resin composition, and the obtained pellets are placed in a film forming apparatus having a T mold to form a film, or a biaxial extrusion may be used. The component (A) and the component (B) and the optional component are melt-kneaded by a machine or the like, and the obtained product is directly sent to a T-die to form a film. The film for packaging of the present invention is as follows ("cutting deviation amount (δ) in the film cutting test, (2) end tensile elongation (p) in the longitudinal direction, and end tensile elongation in the transverse direction) The ratio of P/Q and film thickness is a film within a specific range. (1) Cutting deviation amount (δ) in the film cutting test The cutting deviation amount (δ) is a physical property value directly indicating the cross-cut property of the film. The film cutting test for measuring the physical property value was carried out in the manner shown in Fig. i. That is, 'prepared a rectangular test piece having a side α (length 300 faces) and a side P (length 22 turns) (here, the side α and the film The longitudinal direction is parallel, and a slit having a length of 3 mm is cut in the central portion of the strip side α, and the film is cut by manually stretching the two corners on the side of the side of the slit α. When cutting, the secant and the self are cut. The maximum value (unit··mm) of the deviation of the reference line vertically lowered by the strip edge α is the cutting deviation amount (δ). The above-described cutting deviation amount (δ) of the film of the present invention is 1 mm to the cutting deviation amount (δ) A film larger than 1 mm has poor cross-cutting properties. The film is cut brittlely, preferably along the baseline. J cutting human deviation 4 (δ) smaller. Practically preferably 8 or less coffee, good ^ is 0 mm or less, most preferably below 4 mm. And 201,219,416

(2) The ratio of the end elongation at break (7) in the longitudinal direction to the tensile elongation at break (Q) in the transverse direction. P/Q The elongation at the end of the film is the force acting on the film to be cut, by deformation. The force to deal with. The film end tensile elongation (P) in the longitudinal direction (MD direction) was measured by the film end tensile test shown in Fig. 2 . That is, a rectangular test piece having a side A (length 6 mm) and a side B (length 20 mm) was prepared (here, the side is parallel to the longitudinal direction (Md direction) of the film), and the tensile speed was measured at 200 mm/ The elongation at break of the test piece at one edge A of the pot in the test piece was measured by minute, and the elongation was set to (P). Film end tensile elongation in the transverse direction (CD direction) The side A of the test piece was parallel to the transverse direction (CD direction) of the film, and was twisted by the disk (7). In the above tensile test, the part of the lining is the end of the nipple of the test piece, which is usually etched when the film is cut. When recording += (MD), if you pay attention to cutting in the horizontal direction (4), the ratio of the tensile elongation at break of J = 7 and the end ratio P/Q in the CD direction is the ratio of the ease of occurrence of crosscutting and slitting. When the ratio Ρ/= is smaller, the smaller the value is, the more likely the cross-cutting is to be more longitudinal. The ratio is the same as the vertical and vertical. When P/Q is larger than 丨, the slitting is more likely to occur. In order to (4) fine = = do not have to make this value 〇.25 or less. It is preferably 〇.2〇 or less 〇15 or less. (3) Film thickness The film thickness should be 3 | xm 3 0 jum, and the string weight should be 5 μηι to 20 μιη. If the film 201219416 is thicker than the above upper limit, sufficient cross-cutting property cannot be obtained. Further, if the film = the above-mentioned thickness limit, it becomes a rigid film, and it is not satisfactory for the meal when it is fresh. If the film thickness is thinner than the above lower limit, the operation is inconvenient, and it is difficult to perform film formation or slit addition. 111 The film for packaging of the present invention can be obtained by subjecting the above-mentioned polymethylpentene] to a product produced by an extrusion film forming method using a die under specific conditions. In the above-mentioned method of the boring method, the film in the fused state reaches the cooling ^ until it is formed in the smelting of the mold (four)::: The film of the film is taken to the film of the final size, and is carried out under the conditions of the film and the film. Film formation using a die extrusion. That is, from: also pull? = In the air gap, the film must be large and fast = the amount of deformation and the deformation speed, then the resulting film == meaning research: ίί 二鹰横! 7 good packaging film with a sharp :: The above manufacturing conditions can be specifically determined by the following formula! And performance. —(t-1/R) · (Ε/Α〇χ1〇〇'9〇〇1 臈ϋ: Yes, \Loose lip opening (unit μιη) 't is the mold of the resulting film and the palace Μιη) is the discharge speed per 1 cm width of the resin composition extruded from the mold (unit: ... is the air gap V: The above formula 1 is explained below. In the deformation of the film of the 煊 2 film in the τ molding film 'Because the deformation in the longitudinal direction of the film accounts for the specific gravity of =. Therefore, when considering the deformation speed, it can be studied only for the shape of length == 12 201219416. The amount of deformation in the longitudinal direction will be from the minute time At from the mold (width W) The extrusion volume of the resin is set to ΔΕ, and when the extrusion length at this time is set to Λχ, Δx = AE/WR Formula 1-2 is obtained from ΔE = WRAx Formula 1-1. Here, when the film formation conditions are set such that ΔΕ is fixed, w is fixed, and therefore Δx=a/R (a is a proportional constant (a=Z\E/W)) Formula 1-3. On the other hand, the length of the film obtained when the amount of the resin of the crucible reaches the cooling roll is set to X, and the thickness is set to t. Here, the deformation in the lateral direction is sufficiently small as compared with the longitudinal direction, and thus can be ignored. Since the width of the film is W, ΔE=WtX, WRAx=WtX .•.X=RAx/t is obtained according to Formula 1-1 '. Therefore, X=a/t is obtained according to Formula 1-3. 〇 Therefore, the deformation in the length direction X_Δχ is obtained according to Equation 1_2 and Equation 1-4. X—Δx = a/t—a/R=a (l/t−1/R)... Equation ι_5. 201219416 Deformation time The deformation in the longitudinal direction occurs between the time when the molten film flows out of the τ mode until it comes into contact with the cooling roll, that is, through the air gap. The air gap passes through the time Τ疋 air gap (Α) / average film take-up speed between air gaps (▽_), but it is known that the above average velocity (vave) is approximately proportional to the film take-up speed (va) when the film reaches a cool cooling (eg, Jin Jingjun, plastic ageing, 32, (1〇), 168 (1986) ); Jin Jing Min Xiao, Fiber Society Zhizhu, 41, τ_4〇9 (1985); Jin Jingmin Xiao and Zhou Muzhang, Fiber Society, 41, τ_521 (1985); Jin Jingmin Xiao and Zhou Muzhang 'Fibre Society, 42, T_1 ( 1986)) Therefore, the air gap passage time T is proportional to the air gap (A) / film take-up speed (va). Also, the film take-up speed (VJ is proportional to the discharge speed E, and the film The thickness t is inversely proportional. Therefore, the time ding is longer as the air gap a is longer, the discharge speed E is smaller and longer, and the thickness t of the film is longer and longer. Therefore, the time T can be expressed as follows. T=b · At/E (b is a proportional constant)... Equation 1_6 Deformation speed in the longitudinal direction The deformation speed in the longitudinal direction is obtained by (X - ) /T = a (1/) according to the formula 丨_5 and the formula 丨6. t - 1/R) / ( b · At/E ) = c ( 1/t -1/R) · (E/At) (c is the proportional constant (c = a/b))) 丨_7. Here, the unit of t (film thickness) and R (lip opening degree) is (the discharge speed) is cm3/hr, and the unit of A (air gap) is cm. If these units are used, the above formula The unit is (l/μιη) . { (cm3/hr) / (cm · μιη) }= (〇πι2/μιη2) • ( 1/hr) = ( l/hr) χ1〇8 〇201219416 For the sake of simplicity The equation in which the proportionality constant C is set to 1 χ is the above formula 1. That is, Formula 1 is an equation which simply shows the deformation speed in the longitudinal direction. In order to obtain a film for packaging which is excellent in cross-cutting property as the object of the present invention, the value of Formula 1 must be 15 or more. It is preferably 25 or more. The upper limit is that the area where the stability of the film formation cannot be ensured by using a vacuum chamber or an ear jet H or the like is about 900 in consideration of the current ability of the film forming machine. In order to satisfy the formula 1, and to make t thinner, specifically, it is also considered that the workability of the product is preferably set to 5 μηι 2 to 2 () beer, more preferably set to 8 Qing ~ 15 Qing' And shortening the enthalpy, specifically set to 0.5 cm~2 cm, 2 to ensure that the film stability _ increase E, depending on the specifications of the film formation, and can be set to 1 〇〇 cm3 / hr or more. Since R is in the formula i: degree, Λΐ, and considering the film forming stability or the extrusion load, etc., the value which is easy to form a film can be selected, and specifically depends on the specification of the system, and it is preferably 3〇〇1 — 9〇0 μΠ1 or so. Of course, if the value of each parameter satisfies the formula 1, it is not the impurity value. For example, the (4) parameter value in the example can be used. In addition to the above (1) to (1), the film of the present invention preferably has at least one of the following characteristics (4) to (4). (4) Tensile elongation at the end in the MD direction (7) The above ratio P/Q is a ratio comparing the transverse and vertical shear properties. Since the P/Q is close to the value of 〇, when the p value is large, It is not possible to easily use the storage box without the cutting aid. Therefore, it is preferred that the P value is 12% or less. More preferably, it is 100% or less, and particularly preferably 50. /. the following. (5) End tensile fracture force in MD direction (1)

15 S 201219416 ^^spif The tensile breaking force at the end of the film is the degree of force propagation of the fracture. If the tensile breaking force is too small, it is not suitable for packaging purposes, and if the above (4) is too large, as will be described below, when it is not cut, it will be cut in the non-cutting auxiliary box. More disadvantageous. When using a box that does not have a cutting aid, that is, a box that is only made of a thin film, the width of the enamel film in the cover plate is much higher than that required in practice, and the rupture is damaged. The storage box is used to strengthen or increase the thickness of the box in order to prevent the thick paper: the paper from being broken. That is, the film has an unnecessarily high strength and is not preferable. The end tensile breaking force (4) for ^^^^ in the (four) direction is IN 15Ν. More preferably, the upper limit is 1 inch. (a) The edge is ar true (7) ρ疋 As shown in Fig. 2, prepare the test piece (this strict and happy mm) and the side Β (length 20mm) of the rectangular t-mirror parallel to the length direction), and stretch In the case of rapid cracking, the test piece in the case of the edge a is the end of the test piece in the cLUd direction. The tensile breaking force (8) The end of the direction is broken and the tensile breaking force (a) is the same: „in the direction of the MD The end is (4) or less. As for (b reason, it is preferably ΗN or less, more desirable, if it is 1 heart, then 纽 New Zealand is sufficient for packaging use (7), more preferably 2 Ν or more. In addition, pull 16 201219416 crack Force (b) In addition to the side A of the test piece and the transverse direction of the film (the CD side is the same as the above-mentioned measurement of the tensile breaking force (a), the knurling process, the laser processing of the film for the coating of the hair It has excellent cross-cutting property and is easy to be placed in the storage box. The Λ method also has the ability to give a fine embossing or scar to the scale cutting aid = optimal = film roll =: :: film The material is appropriately selected, and is usually pressed as 1〇N/m=::: The picture shown in Figure 3. The knurling process can be performed in ', workday, or slit processing. Set the independent steps and the actual 'at least the upper part of the end of the film parallel direction is actually fading: add it to the line-cutting, and the processing width is usually amm~10mm, preferably 〇2=归花财可娜 (4) The end and the volume, the strong intimacy and the inability to pull out (4) The effect of the film around the film and the same effect can also be obtained by laser protection. * Shooting is wrong The irradiation heat of the shot causes the film to be fused in a very fine area. ^ 201219416 The concave shape or the hole is processed here. The laser used is not specially made. For example, carbon dioxide laser, krypton laser, argon ion Ray lasers such as mines and excimer lasers or ruby lasers with ruby medium added to the network, $sapphire lasers using titanium sapphire crystals as medium, and YAG crystals replaced by other rare earth elements A kind of YAG laser and a solid laser such as Nd:YAG laser using YAG with titanium added. In addition, liquid laser, semiconductor laser, free electron laser, metal helium laser, chemical laser can be used. A well-known laser. The illumination output is w : about 20 W' is appropriately adjusted in consideration of the film thickness of the film or the speed of the curing. The surface of the film of the present invention subjected to laser processing is photographed and photographed. It is carried out by setting a separate step during the thief stitching process or after the slit processing. At least one end of the end portion parallel to the longitudinal direction of the film is performed, = cutting is better for both ends Implementation. Processing width and pass = G brewing ~ 1G bribe, preferably Q 3 brewing ~ 6 coffee. Most of the storage box panel packs use the front panel, bottom panel rear panel, cover © panel and cover panel as shown in Figure 5. According to the tooth. The hair ===/(4) The fault of the object and the aid aid _中==:= has excellent cross-cutting property 'Because of the reserve gold' system 2:=====: 18 201219416 Only thick paper When the box is used, it can be produced if it is not possible.] This is a very simple cutting aid that will not be allowed to hold the most. It may be advantageous at the sales site. The above-mentioned versatile cut-off aid is preferably a cut-off aid which improves the safety with less risk of injury to the hand, and specifically, fine sandpaper or the like. Abrasive grains of coarse sandpaper may be lions, not suitable for packaging, especially food. Cutting aid for the film for the bag. The possibility of peeling off the abrasive particles can be easily determined by a 180-degree bending test by whether or not cracks are observed on the sand surface. For example, it is a commercially available sandpaper (Wu 附 coated with abrasive tools (N〇ritake c〇ated

When Abrasive Co., Ltd. manufactures, water-resistant sandpaper, trade name), the grain size (according to JISR6001 (1998)) is #22〇 and the #22 coarse sandpaper can be observed cracks, #240 can be observed very fine Cracks, #32〇 and #320 thin sandpaper did not observe cracks, so it can be judged: sandpaper with a particle size of at least #240 or finer than #240 should be used, preferably the particle size is #320 or ratio# 320 fine sandpaper. The results of the 180 degree bending test of various particle sizes of the commercially available sandpaper are shown in Table 1 below. Table 1 Particle size (grinding particle size) Paper size (water resistant type) 180 degree bending test #80 (300 μιη) Right larger crack #120 (180μιη) Larger crack #180 (63 μιη) There is moderate crack #220 (53 μιη) Observe the smaller crack #240 ( 60 μιη) 窓 窓 to very fine crack #320 (40μτη) No crack #600 (20 μιη) No crack Whether the film can be cut by a cutting aid such as sandpaper

S 19 201219416 Storage box for cutting aids =:=:::r=should=: There is no special restriction on the method of setting sandpaper in the storage box, as shown in the front and/or front of the masking plate. And/or the ridge portion of the front panel bottom panel is directly coated with the coating containing the abrasive grains and hardened. =: On the substrate such as paper, the coating is coated and hardened, and then the basin is attached = storage The method of the above part of the box, etc. In addition, a sandpaper may be disposed on a front end portion of the mask and/or an upper end portion of the front panel and/or a full length region from one end to the other end of the ridge portion of the front panel and the bottom panel; or may be disposed in the full length region A part of the area is provided, for example, only at the end. Further, in addition to the above-described portion of the storage box, sandpaper may be provided in other portions of the storage box instead of the above portion. [Examples] Hereinafter, the present invention will be specifically described based on examples, but the present invention is not limited to the following examples. The materials used and the measurement methods are as follows. Material poly-4-methylpentene-1 resin MX-021: Poly-4-methylpentan-1' MFR (260Ϊ, 5.00 kg) manufactured by Mitsui Chemicals Co., Ltd. 23 g/ΙΟ Minute MX-0020: Mitsui Poly-4-methylpentene-1, MFR (260°C, 5.00 kg) manufactured by Chemical Co., Ltd. 21 g/ΙΟ Minute MX-004: Poly 4-decylpentene manufactured by Mitsui Chemicals Co., Ltd. 201219416 li -1, MFR (260 ° C, 5.00 kg) 25 g/10 min Polybutene-1 resin PB8640M : Polybutene-1, MFR (190 ° C, 21.18 N) manufactured by LYONDELLBASELL, 28 g / ΙΟ minute

Tafmer BL2000: Polybutene manufactured by Mitsui Chemicals Co., Ltd.; l, MFR (190 ° C, 21.18 N) 1.0 g / ΙΟ minute liquid sarcophagus HICALL K-350: manufactured by Kaneda Co., Ltd. Liquid paraffin MORESCO-WHITE P-350P: Liquid paraffin comparison component FB3HAT of Japan Matsune Petroleum Co., Ltd.: Polypropylene, cast film grade, MFR (230X: manufactured by Japan Polypropylene Co., Ltd.) , 21.18 N) 7_5 g/10 min DFD0118: Low-density polyethylene, manufactured by Nippon Unicar Co., Ltd., density 923 Kg/m3, MFR (190Ϊ, 21.18 N) 2.4 g/l〇 min Measurement method (1) Cutting deviation amount (δ) A rectangular film having a side α (length 300 mm) and a side β (length 220 mm) and having a side α parallel to the longitudinal direction (MD direction) of the film was used as a test piece. A central portion of one side α was cut into a slit having a length of 3 mm, and the film was cut by hand stretching the two corners of the side of the side of the slit (Fig. 1). Measurement

21 S 201219416 疋 Self-cutting π to the other side of the strip-side α, the deviation of the reference line from the cutting line, the maximum value of the deviation (unit·· is called the cutting deviation amount (δ). The three people performed the above test three times. The average value of the total of 9 times is obtained. In addition, in the case where the knurling process or the laser blasting is performed, the knurling process or the ridge portion is the one of the above-mentioned ones when the kerf is cut into the slit (2) the MD direction end Tensile breaking force (heart, sleeve / Ιΐΐΐΐ (length 60 mm) and side B (length 20 ships) and the test piece ' along both sides B to l〇mm bureaucratic salt mountain * gland for horses" shares limited The test piece value is measured by the force at the time of splitting (unit: N). In addition, the end portion obtained by performing the average flower processing or laser processing is the above-mentioned side roll test piece. (1) Tensile tensile elongation at the end of the MD direction: test, test the test piece for 5 tests, obtain the flat ^m), _ the following formula to calculate the elongation. Enter P = {S / (60-1 〇 x 2) }xl〇〇(0/〇) (4) End tensile fracture force in the CD direction (8) In the test of (7) above, except for the side of the test piece A with the film of the cross 22 201219416

The L direction (CD direction) is determined by the force 71 when the test piece is broken, and the half insertion is measured in the same manner as (7) above. (early position: N). 5 tests were carried out, and the end tensile elongation (Q) direction of the 3^ direction was obtained (in the CD direction test, except when the side A of the test piece and the transverse test piece of the film were broken) '5 tests were performed in the same manner as (1) above, 4 = unit: face), and she i7 V, - each of the cutting test papers in the storage box with the cutting aid; square without serrations, etc. Box for cutting lions (thickness, mother's weight + gram weight _ g / m2, 4G mmx4G sa side, = wound film (film with a width of 300, length 20m ^ 1 leg, inner diameter 27 mm Film rolled up by a paper tube with a thickness of 1.5 mm) About 20 em_ 'In the state where the lid is closed, one nip is attempted by the ridge portion of the front of the box, and the number of cuts is counted as cut (7) with cutting aid In the case of the cutting test in the storage box, the box for accommodating the film is attached to the front end portion of the cover plate of the same box as that used in the above (6), and the sand is attached to the front end of the cover plate. The box manufactured by Coated Abrasive Co., Ltd., water-resistant sandpaper, trade name j947H) is subjected to the above-mentioned (6) phase test. In addition, σ is used. Try cutting with the front end of the cover plate to which the sandpaper is attached. The sandpaper with a width of 2 cmx and a length of 310 mm is bent to cover the surface of the front end of the cover plate, and is made of double-sided tape. 23 1 201219416 The sandpaper used has a particle size of #320 and #6〇〇. In order to adapt the film to a box having sandpaper as a cutting aid, the above cutting rate must be at least 80%, preferably at least 9%, and more. In addition, when the possibility of peeling off the above-mentioned abrasive grains is added, it is necessary to determine the above-mentioned cutting ratio by the polishing particle size of #320 or #320. (8) Adhesion test (rice package property) Normal temperature (25°C) cold rice ball (normal triangle shape, weight 1〇〇g, 1 side 7 cm, thickness 4 cm) is packaged in a square film of 3〇em square in the manner shown in the figure. The end is tightened into a paper rope shape. The retention of the packaging state is evaluated in the following three levels: 3. The paper rope is not scattered, and the original state is maintained. 2: The paper rope is slightly loosened, but it is not exposed to the rice balls. : The paper rope is loose and the rice balls are exposed. (9) Transparency (fog The value was measured according to JIS K 7105. Examples 1 to 9 Using the components of the blending amount (parts by mass) shown in Table 2, the T-die film forming apparatus of Sakamoto Steel Co., Ltd. was used to manufacture Table 2 The film thickness was shown as follows. The film formation conditions were as follows. The test (1) to the test (9) were carried out using the obtained film. The results are shown in Table 2.

Cooling roll temperature 25 ° C mold exit resin temperature 29 〇. 〇Using the vacuum chamber and the air gap with the ear ejector (A) 1.5 cm 24 201219416 Lip opening (R) 400 μιη end of the end parallel to the length of the working length - In Example 5, the target film thickness is set to 4 The solution of the material I: is obtained by narrowing the width of the film as a product, and the film is obtained in the same manner as the knurling and the width of the knurling. In the example 9, in addition to the knurling process at the end parallel to the length direction of ^, is the addition phase * 2? Using a CO 2 laser, the transmission force is 3 111111 and the machining speed is 1〇〇〇111111/sec.

S 25 201219416 J-aoo17ln6rn <N< Example 9 〇CO in 〇CN 0.06 Ο) 卜CN oo 〇〇ο <1.0 ΓΠ Example 8 〇cn V") 〇 inch C0 V) CN 0.05 1_ OO inch in On CN Oo 〇〇ο <1.0 Example 7 〇l〇〇〇584 Os CN 〇V) in CN (N inch · s 〇ί-Η g 〇cn Example 6 〇CN CN 00 〇<1584 〇s ¥ 0.11 〇 \卜00 inch CN s ο g ο CN m Example 5 〇m disc inch 3708 〇〇0.08 rn cs oo ο ο ο I Ν <1.0 m Example 4 〇m 〇TH 584 〇〇rn 0.09 00 od 00 oi g ο ο 1_! Example 3 〇cn 〇1.5841 ir> CN 0.05 r- 〇rn LjooJ ο ο 100 L<^〇J m Example 2 〇〇 84 84 | oo rn ;0.08 Os 〇 6 〇 \ oi g ο ο »- Η 1 <1·0 1 m Example 1 ο m 〇SO cn 1 0.08 I \〇od 卜CN g ο ο »-Η 丨<ι·〇1 MX021 ΜΧ0020 PB8640M HICALLK-350 Knurling or laser processing Film thickness, μηι The value of the deviation of the value of the formula 1 (δ), the ratio of the tensile elongation at the end of the mm (P/Q), the tensile elongation at the end (P), the % tensile breaking force at the end (a), N End tensile breaking force (b), N cutting test without cutting aid, % cutting test by #320 sandpaper, % cutting test by #600 sandpaper, % transparency (haze ), % adhesion 201219416 ^ it Example 10 to Example 33 and Comparative Example 1 to Comparative Example 12 Using the components of the blending amount (parts by mass) shown in Table 3, the use of Nippon Steel Works Co., Ltd. under the conditions shown in Table 2 was used. The T-molding apparatus manufactured by the company produced a film having a film thickness as shown in Table 2. In addition, the chill roll temperature was 25 ° C, the mold exit resin temperature was 290 ° C, and a vacuum chamber and an ear ejector were used. The obtained film was tested (1) to test (5) and tested (7) to test (9). The results are shown in Table 3. 201219416 J'aoo inch S6rn e< 丨example 21| 〇ο (Ν Ο inch^Τ Cs ψ Η g Ο oo <N m inch 00 tr) d 00 〇o 00 cs Ο ο CO <1.0 Example 20 〇〇ο ο CN ϊ-Η ο 寸卜gdo 宕寸芝V*iof—4 d CO cri c4 Ο ο ο ο C^l <1.0 Example 19 I 〇a ιη ο ο 守<Ν 卜 goos cn σ\ 〇\ do iN CN ο g ΓΟ ο cn Example 18 〇οο CN ο inch CN 00 ooo 宕m Bub JO mo CN 〇i VO <N ο m Example 17 〇(Ν (Ν οο (Ν ο ο *Τ) 卜goo 宕m et iT o ο ό CS CS ο g ΓΛ ρ Instance 16 ο ο ΓΟ Ο tH ο ο in ό m cn oo ON 00 00 v〇00 Γ〇00 CO to 卜 Ο 〇 6 ir> fN ο ο ο ο m < 1.0 Example 15 ο ΙΟ »/Ί (Ν ο ο CM goo inch CS iT) σ> oo οο οό Os rsi ο ο ο ο γΛ 〈1,0 | Example 14 ο ο ITi CN Τ-Η ο ο ιη iS 卜 goo S m inch CN ^r> od οό oo <N ο ο m <1.0 Example 13 ο 〇〇ί〇<Ν ο 守ΙΛ (N 卜goo S cn inch ΟΟ »〇o inch οο 卜CN ο ο ο <1.0 |Example 12 ο ΓΟ ο spoon · cs goo O CN m inch q| σ> σ\ inch go 00 οό ON <N ο ο ο ο m <L0 CN <Ν ψ-^ ο ο iT) (N goo ΓΛ inch ο iT) v〇 inch On 〇〇σ\ οο 〇rn ο ο CO <1.0 1 <5> ο ΓΛ (Ν ο 寸 Τ g g g g g g g g g g Mgd ν〇οό r- <N ο ο ro <1.0 ΜΧ0020 ΜΧ004 ΡΒ8640Μ Tafmer BL3110 HICALLK-350 MORESCO-WHITE Ρ-350Ρ FB3HAT DFD0118 Film thickness (1), μπι Lip opening (R), μπι I Air gap (A) , cm β ε ο /—Ν ω •33 1 E/At Equation 1: (l/tl/R) . (E/At)xl00 Cutting deviation (δ), mm End tensile elongation (Ρ), % end tensile elongation (Q), % ratio (P/Q) end tensile breaking force (a), 拉伸 end tensile breaking force (b), N cutting test, % #320 (40μιη) #600 (20μηι) Adhesive transparency (haze), % 201219416 J'aoo inch 56ε | Example 33 I 〇cn ^Ti inch 400 1 267 1 | 0.25 I CO cn 00 in On 1 don i i 〇_19 | 00 rn Ο Ο Ο ο mp | Example 32 | 〇m (N 400 in 267 0.08 »ri <NV) 1 Still 1 0.11 Divination 6 Inch CN ο ο ο ο m <1.0 |Example 31 | 〇m V" ) I I I I I I I I I I I I I I I I I | 0.16 I inch 〇 \ ro ο ο m | <1.0 Example 2 9 Ο ο cn 1600 >Τϊ | 0.07 I CN tr) m VO 589 | 〇.1〇] 12.2 | m § § cn <1.0 Example 28 | ο _ ·Η cn V) inch o On 00 0.06 inch< S 〇\ 00 1 487 1 | 0.18 1 ι^Η 〇ON cn ο ο <1.0 |Example 27| ο | 400 I iri Os oo | 0.07 I inch OS CN m 1 526 1 | 〇.1〇| 〇\ Os 〇\ ο »«Η ο cn 1 <1.0 Example 26 ο o <N 400 in 1_712_I | 0.08 I ο | 320 I On OO OO inch 〇-24 | ΓΟ 〇\ <N — ο g 〇 Example 25 ο ο o cs cs cs 400 1 712 | 0.08 ο 320 inches?: 509 1 0-11 1 〇〇Q\ CN ο ο m <1.0 Example 24 ο o (N 400 vn L 712 II 0.08 I ο 320 | inch 512 1 | 0.08 1 Os 〇6 卜<N ο ο ο ο m <1.0 |Example 23| ο iT) o CS I 400 I 712 1 0.08 I ο | 320 | 〇\ ^Ti 1 480 1 1 0-24 | 1 12.4 | 寸 inch ' ο gmo rn | example 2# ο o (N 1 400 I 712 1 0.08 I ο 320 〇 〇 \ m 0.12 〇oo CN ο m ΜΧ0020 ΜΧ004 PB8640M Tafmer BL3110 HICALLK-350 MORESCO-WHITE P-350P FB3HAT DFD0118 Membrane (1), μιπ lip opening _(R), μηι air gap (A), cm β BOW s-/ 33 E/At formula l: (l/tl/R) · (E/At)xl00 cutting deviation amount (δ ), mm end tensile elongation (P), % end tensile elongation (Q), % ratio (P/Q) end tensile breaking force (a), 端 end tensile breaking force (b ), N cutting test, % #320 (40μιη) #600 (20μηι) Adhesive transparency (haze), % Lulong 0 fthl s

6tN 201219416 J-aoo inch>n6e Comparative example 12 m til ο inch oo ^T) ON 00 〇 inch ON CN OS m jri 〇Ο rs CN ο Ο CN 00 oi Comparative example 11 ro ο o inch V) a\ 00 d inch 〇 \ fNj cannot measure I mm cn inch CN Ό 〇p ο ο CO 锑 2 -ϋ 〇m CN oo VO (N g c> ON oo 〇v〇〇\ inch 〇V) σ\ 卜 ο Pr pr—H Comparative Example 9 〇m V") Vi cn oa\ »〇ON 00 sd cN o CO rJ Os inch 〇ο 〇〇1 Η CN ο Γ〇o — Comparative Example 8 〇m W-) U- CN o § 〇\ oo Art d CN σ\ 卜 mv〇l〇On 〇οο vS ψ < g ΓΟ p Comparative Example 7 Ο m ιΤΐ (Ν o in 00 so inch Os 〇iT) 〇m *«Η oo Oo ο mp Comparative Example 6 ο m inch ogom oo m On inch ο Os Ό ΓΛ § ο 1 <1.0 | Comparative Example 5 ο 〇Ο CN oo 1 <<s 卜go 〇宕m inch as CO 〇\寸g ο 守Os r- rsi ο ^-Η ο »-Η 1 <1.0 ] Comparative Example 4 ο o yn CA oov〇CN 卜 gdo cn P; 沄ο (N 〇\ Os rn g ο cn Vi — comparison Example 3 ο o Ο CN o 寸 ^ Ti rH cs 卜 goo S cn oo 沄 ο ^ Ti ra 卜 ο ‐ ‐ ‐ 比较 比较 • • • • • • • • • • • S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Ci g ο m — Comparative Example 1 Ο Η so <N ,H oo oo cs o Ό v〇Ό 沄ο V〇CN inchο ο CN ΜΧ0020 ΜΧ004 PB8640M TafmerBL3110 HICALLK-350 MORESCO-WHITE P-350P FB3HAT DFD0118 Film thickness (t), μιη lip opening (R), μπι air gap (A), cm β ε ο ω Vw/ • 33 Let c TM 1 < E/At Formula 1: (l/t_l/R) . (E /At)xl00 cutting deviation (δ), mm end tensile elongation (p), % end tensile elongation (Q), % ratio (P/Q) end tensile breaking force (a), N-end tensile breaking force (b), N-cutting test, % #320 (40 μπι) #600 (20 μπι) Adhesive transparency (haze), % 铕 ii ? ξ ®κ 201219416 From Table 3 It is understood that the film obtained by the method of the present invention is excellent in cross-cut property. On the other hand, the film of Comparative Example 1 having a film thickness larger than the range of the present invention had no cross-cutting property at all. The film of Comparative Example 2 to Comparative Example 4 in which the amount of the component (B) was more than the resin composition of the present invention was inferior in cross-cut property, and the film of Comparative Example 5 containing the resin composition of the component (B) was used. Poor adhesion. Comparative Example 6 is an example in which the ejection speed was set to half of the original value in Example 28, and the cross-cut property was poor. Comparative Example 7 is an example in which the lip opening degree was narrowed in Example 31, and the cross-cut property was poor. Comparative Example 8 is an example in which the ejection speed was set to half of the original value in Example 31, and the cross-cut property was poor. The film of Comparative Example 9 in which the film thickness in Comparative Example 8 was larger than the range of the present invention was completely free from cross-cutting property. Comparative Example 1 is an example in which the air gap was extended in Example 32, and the cross-cut property was poor. Further, the iLie condition of Comparative Example 1 is the manufacturing condition of F.O. RWrap (trade name) manufactured by Riken Technos Co., Ltd., which is equivalent to the previous method. Comparative Example 11 in which polypropylene was used instead of poly-4-methylpentene-1 as the component (A) in Example 27 and the film of Comparative Example 12 using polyethylene all produced significant longitudinal elongation in the test of the cutting deviation amount. And no cross-cutting. Examples 34 to 36 and Comparative Example 13 In Example 34, the end portions of the film of the example 1G in which the longitudinal direction of the film of Example 1G were parallel were subjected to knurling with a width of 3 mm. The machining conditions are as follows: =$ is 〇.2 mm, the machining width is 3 mm, and the machining speed is 400 m/min. ^In the case of 35, the machining width is set to G.6 mm, which is implemented in the same manner as the real: 34. Knurling processing. A diagram of a portion of the example % of which has been subjected to roll-up is shown in Fig. 3.

C 31 201219416 In Example 36, a laser beam having a width of 3 mm was applied to one end portion of the end portion parallel to the longitudinal direction of the film of Example 10. The processing conditions were the use of a carbon dioxide laser with a wheel rotation of 1 W, a processing width of 3 mm and a processing speed of 1000 mm/sec. A photograph of a film surface of a portion subjected to laser processing is photographed in Fig. 4 . In the comparative example 13, one of the ends parallel to the longitudinal direction of the saran Wrap (trade name) (made of Asahi Kasei Home Products Co., Ltd., a wrap film of a polyvinylidene-based vinyl resin composition) The end is knurled with a width of 3 mm. The processing conditions were the same as in Example 34. For this test (4). In addition, the same test was carried out for films which were not subjected to knurling or laser processing. The results are shown in Table 4. Table 4 Example 10 f You 丨 fly 4 Rolling processing or laser gamma without Ά λτ\ 35 Yes — _^ Example 36 Comparative Example 13 Film thickness (1), μιη Cutting deviation (δ), mm End stretching for length Rate fp, 〇 12 12 4 12 2 12 — 2 There are 12 2 There are 10 11 End Tensile Elongation (Q) % Ratio (P/Q) 45 537 0.08 17 340 0.05 ~~5Ό~ 18 353 0.05 — 21 - —350 21 30 End tensile breaking force (a) N & tensile fracture six xr 8^— 4 8 0.70 1 r\ a _Cutting test. % #320 (403⁄4- 2.7 3.1 2.9 2.8 ί\) Λ 10 Ο _~Ϊ00 ~~ ~~100~~ 100 ΙΓϊοό~~ 100 40 #600(10)咖) Adhesive 100 100 ------^ 100 _ Mai Ming (Haze Ί No cutting aid cutting ability On the way, % 3 < 1.0 ~ 85 - 3 < 1.0 ~ ~ 100 ~ ~ 3 < Τ ο 100 1 < 1.0 100 < 1.0 0 Comparative Example 14 - Comparative Example π The following commercially available packaging film was used. Test 〇)~ and test (7) ~ test (9). In the test (7), sandpaper having six kinds of particle sizes (grinding particle size) of 32 201219416' shown in Table 1 was tested. The same test was also carried out on the film of Example 10. The results are shown in Table 5. Comparative Example 14: Kurewrap (trade name) (Wang Yu (Kureha) Co., Ltd., a wrap film made of a polyvinylidene-based vinyl resin composition) Comparative Example 15: Saran Wrap (trade name) (Asahi Kasei Household Products Co., Ltd.) Preservation film of the composition and the polyvinylidene-based resin composition. Comparative Example 16: HITACHI Wrap (trade name) (a plastic wrap produced by Hitachi Chemical Filtec Co., Ltd., a polyvinyl chloride resin composition) Comparative Example 17: Poly Wrap (trade name) (manufactured by Ube Film Co., Ltd., polyethylene-based wrap film) Table 5 Example 10 Comparative Example 14 Comparative Example 15 Comparative Example 16 Comparative Example 17 Kurewrap Saran Wrap HITACHI Wrap Poly Wrap Film thickness (t), μηι 12 10 10 9 10 Cutting deviation (δ), mm 4 12 13 11 27 End tensile elongation (P), % 45 32 23 120 338 End tensile elongation (Q) , y0 537 36 30 171 512 Ratio (P/Q) 0.08 0.89 0.76 0.70 0.66 End tensile breaking force (a), N 8.6 16.8 17.3 6.5 5.5 End tensile breaking force (b), N 2.7 20.0 19.6 4.5 3.3 Cutting test, % #120 (180μηι) 100 100 100 100 100 #180 (63 μηι) 100 70 70 70 100 #220 (53 μπι) 100 60 60 60 70 #240 ( 60 μιη ) 100 40 40 30 50 #320 (40μιη) 100 0 0 0 10 #600 ( 20 μηι) 100 0 0 0 0 Adhesion 3 1 1 3 2 Transparency (haze), % <1.0 <1.0 <1.0 1.5 <1.0 [Simple description]

S 33 201219416 jyD^opif Fig. 1 is a view showing a film cutting test. Fig. 2 is a view showing a film end tensile test. Fig. 3 is a view showing photographing of the surface of the film of the present invention subjected to knurling. Fig. 4 is a view showing photographing of the surface of the film of the present invention subjected to laser processing. Fig. 5 is a perspective view showing an embodiment of a tank for accommodating the film of the present invention. Fig. 6 is a view for explaining an adhesion test of a film. [Main component symbol description] None 0 34

Claims (1)

201219416 VII. Application for Patent Park: A film for packaging, characterized in that it comprises a polymethylpentene-1 system, and the polymethylpentene resin composition contains (A) polymethyl. 1 part by mass of the pentylene-anthraquinone resin, and a part by weight of G.5 f ® parts to 6G f and/or 0.1 part by weight of liquid paraffin, and 20 parts by weight of the liquid paraffin, wherein the component (B) The total amount of the film is not more than 75 parts by mass, and the film for packaging satisfies the following (1) to (3): (1) The amount of cutting deviation (4) in the film cutting test is 1 〇 or less, and the length of the end H is ^ The ratio of the tensile elongation at break (p) to the tensile elongation at break (Q) in the transverse direction is G.25 or less, (3) the thickness of the film is 3 μm to 30 μm, and the amount of ππη is cut. W is a test piece having a length α film having a side α (length 300 = flat 1 degree 22 Glnm) ^• while reading the above-mentioned film, in which the above-mentioned side "the slit of the face of the mouth" is stretched by hand in the cut The above-mentioned cutting: the back angle of the reference line on the side of the side α, and the back-to-back 0 mm of the reference line which is lowered by the single-blade position of the film to the other side. The side A is flat with respect to the longitudinal direction of the film: the square film is used as a test piece, and the square k /, * when the test piece is broken at two of the above-mentioned sides A at a tensile speed of 200 mm/min. The ratio of the above-mentioned side 8 of the test piece to the transverse direction of the film and the elongation (Q) of the above test piece when the above-mentioned (7) phase was subjected to the test. The film for packaging according to the first aspect of the invention, wherein the knurling process and/or the ray having a width of 0.1 mm to 10 mm is applied to at least one end portion of the end portion parallel to the wide and longitudinal directions. Shot processing. Fang Mu 3 · Gan = The manufacture of the film for packaging as described in claim 1 includes: extrusion of polydecylpentene - 1 system tree sputum using T-die, the above polymethylpentene-1 The resin composition contains (Α) polymethylpentene 4 resin 1 〇〇 parts by mass, and poly olefin] 'pour fat G. 5S parts to 6 G parts by mass and / or liquid phase. 1 weight 1 part ~ 20 parts by weight, wherein the total amount of the component (B) is not more than 75 parts by mass, and a film for packaging having a film thickness of 3 μm to 3 μm is obtained; in the above extrusion, the lip opening R of the above-mentioned τ mode is The unit μιη), the film thickness t (unit μιη), and the extrusion speed of each of the die widths of the extruded resin composition (unit cm / hr) and the rolling gap a (unit cm) satisfy the following formula 1 : 15$ (1/1—1/R) · (E/At) χ10〇$9〇〇...Form 1. >4. A film product for packaging, which comprises storing the secret film of the film for packaging according to the first or second aspect of the patent application in a storage box having no cutting aid. ★ 5. A film product for packaging, which is characterized in that the wound film of the package as described in claim 1 or 2 is stored to have a grinding particle size of #320 or less than #32〇. Sandpaper in the storage box. 36