JP5162204B2 - Acrylic resin cut product manufacturing method and manufacturing apparatus - Google Patents

Description

  The present invention relates to a method for manufacturing an acrylic resin cut product and a manufacturing apparatus for cutting an acrylic resin strip formed by melt extrusion using, for example, a die having a slit-like discharge port.

  Conventionally, when cutting an acrylic resin sheet or film (hereinafter sometimes referred to as “acrylic resin band”), processing with a milling cutter, a rotary saw blade, a rotary cutter, a leather cutter, or the like has been performed. However, in the above-described method, a crack is easily generated when the blade is pushed in, and the crack is obtained by cutting the acrylic resin strip or the acrylic resin strip (hereinafter referred to as “cut”). It was easy to propagate. This was particularly noticeable when an acrylic resin strip formed from an acrylic resin with low toughness to which no rubber was added was cut. When the crack propagates, it leads to breakage. For example, when the continuously transported acrylic resin strip is cut in the traveling direction, the winding of the obtained cut product has to be interrupted. In addition, when the fragments due to the cracks adhere to the cut object, the cut object is recovered with the fragments remaining attached thereto, and thus there is a problem that the quality of the acrylic resin cut object is deteriorated due to the unevenness of the fragments.

As a cutting method aiming at obtaining a good cut surface with respect to such a problem, for example, Patent Document 1 discloses a method of cutting a plastic substrate by heating a cutting blade above the softening point of a workpiece. Is disclosed.
Patent Document 2 discloses a slit in which a cut portion of an amorphous plastic film made of a material such as an epoxy resin, a vinyl resin, or a polycarbonate resin is cut at 50 to 150 ° C. or heated to 80 to 150 ° C. A method of cutting after passing an amorphous plastic film through a roller and heating is disclosed.
JP-A 64-5799 JP 59-214610 A

However, as described in Patent Document 1, when a heated cutting blade is used to cut the acrylic resin strip by locally heating and softening, it is necessary for cutting if the production line speed is increased to increase productivity. Since the cutting is performed before the amount of heat is applied to the portion to be cut, that is, before the portion to be cut of the acrylic resin strip is softened, cracks may occur.
In addition, as described in Patent Document 2, when the part to be cut is cut in a preheated state, it is necessary to perform heating when performing the cutting, and thus heating costs such as installation of heating equipment may be required. It was. Furthermore, when cutting an acrylic resin strip, when the cut portion of the acrylic resin strip is heated to 50 to 150 ° C. or cut using a cutting blade heated to 80 to 150 ° C. In some cases, the acrylic resin band or the cut product may be thermally deformed, or the cut part may be deformed by contact with the cutting blade during cutting, resulting in a quality problem.

  The present invention has been made in view of the above circumstances, and while maintaining productivity, suppresses manufacturing costs, suppresses generation of cracks and prevents deformation, and a manufacturing apparatus for an acrylic resin cut product I will provide a.

The method for producing an acrylic resin cut product according to the present invention is to melt-extrude an acrylic resin to form an acrylic resin strip, and then use the heat at the time of the melt-extrusion to form the acrylic resin strip. (Tg-40 ° C) or higher temperature (however, Tg is the glass transition point of the acrylic resin), and the acrylic resin strips (Tg-40 ° C) to (Tg-15 ° C) A method for producing an acrylic resin cut product that is cut by a cutting blade at a temperature , wherein the acrylic resin strip is maintained at a temperature of (Tg-40 ° C) to (Tg-15 ° C), and the acrylic resin It surrounds the system resin strip and the cutting blade .

Further, the acrylic resin cut product manufacturing apparatus of the present invention uses the molding means for melt-extruding the acrylic resin to shape the acrylic resin strip, and the acrylic resin using the heat at the time of the melt-extrusion. The system resin strip is held at a temperature (Tg-40 ° C) or higher (where Tg is the glass transition point of the acrylic resin), and the acrylic resin strip is (Tg-40 ° C) to (Tg Cutting means provided with a cutting blade that cuts at a temperature of −15 ° C., and heat retaining means for holding the acrylic resin strip at a temperature of (Tg−40 ° C.) to (Tg−15 ° C.) , The acrylic resin strip and the cutting blade of the cutting means are surrounded by the heat retaining means .

Et al is, the cutting means is preferably provided with a temperature control means for holding the acrylic resin strip to a temperature of (Tg-40 ℃) ~ ( Tg-15 ℃).

According to the manufacturing method and the manufacturing apparatus of the acrylic resin cut product of the present invention, it is possible to suppress the production cost and the generation of cracks while maintaining the productivity.
Further, according to the present invention, since the acrylic resin strip is cut using the heat generated when the acrylic resin is melt-extruded, the cut portion of the acrylic resin strip is necessary for cutting. Since the amount of heat is applied, the generation of cracks can be suppressed while maintaining productivity even if the speed of the production line is increased. Further, there is no cost required for heating, such as a heating facility for raising the temperature from room temperature to a temperature at which cutting is possible, the manufacturing cost can be reduced, and the manufacturing facility can be downsized.
Furthermore, according to the present invention, the acrylic resin strip is cut while being held at a temperature lower than the Tg temperature of the acrylic resin and at a temperature of (Tg−40 ° C.) or higher. Since it cut | disconnects in the solidified state, there is no deformation | transformation by the contact with the cutting blade by heat softening, and the acrylic resin cut material which has a favorable cut surface is obtained.

The present invention will be described in detail below.
The acrylic resin cut product (hereinafter sometimes referred to as “cut product”) obtained by the present invention is obtained by cutting an acrylic resin band state (hereinafter also referred to as “band body”). .
The structure of the strip may be a single layer structure made of an acrylic resin or a multilayer structure in which at least one acrylic resin is laminated. In addition, when a strip | belt-shaped body is a multilayer structure, the layer which consists of acrylic resins may exist in any of a skin layer (surface layer) and a core layer (inner layer).

  Known materials can be used as the acrylic resin. For example, when a copolymer of methyl methacrylate is used as an acrylic resin, the content of methyl methacrylate units is preferably 50% by mass or more from the viewpoint of transparency. Examples of monomers copolymerizable with methyl methacrylate include acrylic acid esters such as methyl acrylate, ethyl acrylate, and n-butyl acrylate, and methacrylates such as ethyl methacrylate, propyl methacrylate, and cyclohexyl methacrylate. Examples include acid esters, maleimides, acrylic acid, methacrylic acid, maleic anhydride, and styrene.

  When the belt-like body has a multilayer structure, examples of the resin that forms a layer other than the acrylic resin layer include vinylidene fluoride-tetrafluoroethylene copolymer, fluorinated methacrylate polymer, vinylidene fluoride polymer, Examples thereof include polystyrene resins, polycarbonate resins, and cyclic polyolefin resins.

In the case of a single layer structure, the belt-like body is formed by melt-extruding an acrylic resin and shaping it to a desired thickness with a roll or the like. In the case of melt extrusion, for example, it is preferable to melt-extrude the acrylic resin from a T die having a slit-like discharge port.
When the belt-like body has a multilayer structure, the above-described resin is melt-extruded so as to have a multilayer structure by a coextrusion molding method, and is formed to have a desired thickness. In the obtained band-shaped body having a multilayer structure, the thickness occupied by the acrylic resin is preferably 50% or more of the thickness of the entire band-shaped body.

  The shape of the strip is preferably a sheet or a film, and the thickness is preferably 0.05 to 2 mm. When the thickness is 0.05 mm or more, the mechanical strength is sufficient. On the other hand, if the thickness is 2 mm or less, since the force (pressure) required for cutting can be set low, wear of the cutting blade can be suppressed, and the time required for cutting can be shortened, so that productivity can be improved.

  In this invention, after shape | molding the strip | belt body mentioned above, this strip | belt body is hold | maintained to the temperature (Tg-40 degreeC) or more (however, Tg is a glass transition point of the said acrylic resin), A strip | belt body is hold | maintained. It cut | disconnects at the temperature of (Tg-40 degreeC)-(Tg-15 degreeC). The temperature at the time of cutting is preferably (Tg-30 ° C) to (Tg-20 ° C). If it cut | disconnects at the temperature more than (Tg-40 degreeC), it can suppress that a crack generate | occur | produces in a cut part, and the acrylic resin cut material which has a favorable cut surface will be obtained. On the other hand, if the cutting is performed at a temperature of (Tg-15 ° C.) or lower, the band-shaped body is solidified at the time of cutting, so that deformation of the cut portion due to contact with the cutting blade can be suppressed. Furthermore, since the temperature does not reach the temperature at which the molding distortion generated during the extrusion molding of the belt-like body is released, thermal deformation can also be suppressed.

In the present invention, Tg of the acrylic resin is a value calculated using the following formula (1).
1 / Tg = Σ (w _i / Tg _i ) (1)
In formula (1), w _i represents the mass fraction of monomer i, and Tg _i represents the Tg of the homopolymer of monomer i. Incidentally, Tg and Tg _i in the formula (1) is a value expressed in absolute temperature (K), Tg _i is described in "POLYMER HANDBOOK, FOURTH EDITION, VI / 193~VI / 253 " Value.

  In order to keep the strip at a temperature of (Tg-40 ° C) or higher and to cut the strip at a temperature of (Tg-40 ° C) to (Tg-15 ° C), it is melt-extruded into a sheet or film. What is necessary is just to cut | disconnect in the state which hold | maintained the temperature of the band-shaped body after shaping | molding shape | molded by desired thickness. For that purpose, an apparatus as shown in FIG. 1 may be used. In addition, each said temperature means the surface temperature of a strip | belt shaped object.

Here, the manufacturing apparatus of the cut material of this invention is demonstrated.
FIG. 1 is a schematic configuration diagram illustrating an example of a cut product manufacturing apparatus 1. The cut product manufacturing apparatus 1 of this example includes a forming means 10 for forming a strip-like body, and a cutting means 20 for cutting the strip-like body, which is disposed in the vicinity of the forming means 10.
Here, “dispose close to the forming means” means that the belt-like body 30 formed by the forming means 10 is disposed at a place where the temperature is maintained at (Tg−40 ° C.) or higher. .

The molding means 10 includes a die 11 that melt-extrudes an acrylic resin and a shaping roll 12.
Examples of the die 11 include a T die having a slit-like discharge port.
A known roll can be used as the shaping roll 12. By passing through the shaping roll 12, the acrylic resin strip 30 shaped to a desired thickness is formed and the strip 30 is cooled.
By forming the forming means 10 with such a configuration, the belt-like body 30 can be continuously formed.

The cutting means 20 is disposed close to the forming means 10 and includes a cutting blade 21.
As the cutting blade 21, a known cutting blade can be used, and examples thereof include a leather blade and a shear blade.
Moreover, the temperature of the cutting blade 21 may be room temperature or may be in a heated state, and is not particularly limited. However, in order to prevent a temperature drop of the cut portion of the band 30 at the time of cutting, the band 30 It is preferable to set the temperature so as to be approximately the same as the temperature.

The cutting blade 21 may be installed so as to cut the strip 30 conveyed from the forming means 10 in its traveling direction, or may be installed so as to cut perpendicularly to the traveling direction. When the strip 30 is cut perpendicular to the traveling direction, the cutting blade 21 is preferably moved in conjunction with the transported strip 30.
In addition, when installing the cutting blade 21 so that the strip | belt-shaped body 30 may be cut | disconnected in the advancing direction, if the one cutting blade 21 is provided with respect to the strip | belt-shaped body 30, the two acrylic resin cuttings 40 will be provided. Although obtained, this invention is not limited to this, For example, you may provide a some cutting blade so that a several cut thing may be obtained at once.

By disposing the cutting means 20 close to the forming means 10, the band-shaped body 30 can be cut using the heat generated when the acrylic resin is melt-extruded. The amount of heat necessary for cutting is given. Therefore, even if the speed of the production line is increased, the strip 30 can be held at a temperature of (Tg-40 ° C) or higher, and the strip 30 can be cut at a temperature of (Tg-40 ° C) to (Tg-15 ° C). The occurrence of cracks can be suppressed while maintaining productivity.
Further, there is no cost required for heating, such as a heating facility for raising the temperature from room temperature to a temperature at which cutting is possible, the manufacturing cost can be reduced, and the manufacturing facility can be downsized.

In addition, it is preferable that the cutting | disconnection means 20 is equipped with the heat retention means 22 which hold | maintains the strip | belt-shaped body 30 at the temperature of (Tg-40 degreeC)-(Tg-15 degreeC).
The material for the heat retaining means 22 is not particularly limited, and examples thereof include glass fiber, urethane foam, and polystyrene foam.

The heat retaining means 22 is not particularly limited as long as the belt 30 can be maintained at a desired temperature. For example, the belt transported from the forming means to the cutting means passes through the housing formed by the heat retaining means. Then, it may be installed so as to reach the cutting blade, or may be installed so as to surround the belt 30 and the cutting blade 21 with the heat retaining means 22 as shown in FIG.
If the heat retaining means 22 is installed as shown in FIG. 1, the ambient temperature of the space surrounded by the heat retaining means 22 (that is, the interior of the housing formed by the heat retaining means) is maintained at a desired temperature. Of course, the cutting blade 21 is maintained at the same temperature as that of the belt-like body 30. In the example shown in FIG. 1, in addition to the belt-like body 30 and the cutting blade 21, the heat retaining means 22 is installed so as to surround a part of the shaping roll 12 provided in the forming means 10.

Moreover, it is preferable that the cutting | disconnection means 20 is equipped with the temperature control means 23 which hold | maintains the strip | belt-shaped body 30 at the temperature of (Tg-40 degreeC)-(Tg-15 degreeC), as shown in FIG.
Examples of the temperature control means 23 include a device that circulates temperature control air such as air, and an infrared heater. Moreover, these can also be used together.

  The temperature adjusting means 23 is not particularly limited as long as the belt-like body 30 can be maintained at a desired temperature. For example, the temperature-controlling means 23 is installed so that only the belt-like body conveyed from the forming means to the cutting means is subjected to temperature-controlled air. Alternatively, the cutting blade may be installed so that a temperature-controlled air or the like hits it. Moreover, when using the apparatus which circulates a temperature control wind as the temperature control means 23, it is preferable to install so that a temperature control wind may be ejected in the orthogonal | vertical direction with respect to the surface of the strip | belt shaped body 30.

  In addition, when both the heat retaining means 22 and the temperature control means 23 are provided, it is preferable to install the temperature control means 23 inside the housing formed by the heat retention means 22 as shown in FIG. In the example shown in FIG. 2, in addition to the belt-like body 30 and the cutting blade 21, the temperature adjusting means 23 is installed so that the temperature adjusting air or the like hits a part of the shaping roll 12 provided in the forming means 10.

In the present invention, the pass line of the strip at the time of cutting by the cutting means may be a straight cut as shown in FIGS.
When cutting the strip 30 in the direction of travel, the cutting means includes a nip roll that regulates the travel of the strip 30 and the cut object 40 upstream and downstream of the cutting blade 21 as shown in FIGS. 24 (upstream nip roll: 24A, downstream nip roll: 24B) may be provided. When the cutting means 20 includes the heat retaining means 22, the nip roll 24 may or may not be surrounded by the heat retaining means 22. In addition, any one of the nip rolls 24 (in the example shown in FIGS. 1 and 2, the upstream nip roll 24 </ b> A) may be surrounded by the heat retaining means 22.

As described above, according to the present invention, since the acrylic resin strip is held at a specific temperature and cut at a specific temperature, the generation of cracks can be suppressed and deformation can be prevented. In addition, since the present invention cuts the strip using heat at the time of melt extrusion of the acrylic resin, the amount of heat necessary for cutting is given to the cut portion of the strip at the time of cutting, Even if the production line speed is increased, the generation of cracks can be suppressed while maintaining the productivity. Furthermore, there is no cost required for heating, such as a heating facility for raising the temperature from room temperature to a temperature at which cutting is possible, so that the manufacturing cost can be reduced and the manufacturing facility can be downsized.
Further, according to the present invention, since the acrylic resin strip is cut while being held at a temperature lower than the Tg temperature of the acrylic resin and at a temperature of (Tg−40 ° C.) or higher, the acrylic resin strip is Since it cut | disconnects in the solidified state, there is no deformation | transformation by the contact with the cutting blade by heat softening, and the acrylic resin cut material which has a favorable cut surface is obtained.

Furthermore, if the cutting means is equipped with a heat retaining means, the band can be maintained at a desired temperature during the period from shaping the band to cutting, so the temperature change of the band during cutting is suppressed, and at a specific temperature. Can be cut more easily.
If the cutting means is provided with temperature control means, the band-like body can be maintained at a desired temperature during the period from the shaping of the band-like body to the cutting, so that the cooling control of the band-like body at the time of cutting can be performed more easily. Therefore, the strip can be cut more easily at a specific temperature.

  The acrylic resin cut product obtained by the present invention is particularly suitable for optical applications such as an optical transmission body that requires high quality because it is difficult for debris due to cracks to adhere and the cut portion is not easily deformed. It is.

Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited thereto.
The manufacturing apparatus shown in FIG. 2 was used as the manufacturing apparatus for the cut product. Each means is shown below.

(Molding means)
By T-die coextrusion molding, the skin layer is vinylidene fluoride-tetrafluoroethylene copolymer (manufactured by Daikin Industries, Ltd., “trade name: NEOFLON, product number: VP50”, melting point: 125 to 140 ° C.), and the core layer is acrylic. A two-layer, three-layer sheet made of a base resin (Mitsubishi Rayon Co., Ltd., “trade name: Acripet MF”, Tg = 93.7 ° C.) and having a skin layer laminated on both sides of the core layer The acrylic resin strip was molded using a shaping roll so that the thickness of the skin layer was 0.025 mm and the thickness of the core layer was 0.2 mm. The width of the acrylic resin strip was 250 mm.
The total thickness of the acrylic resin strip was 0.25 mm, and the thickness ratio of each layer was skin layer: core layer: skin layer = 1: 8: 1.
As the die 11, a feed block type T-die for forming two types and three layers was used, and the take-up speed was set to 5 m / min. Further, as the shaping roll 12, the first shaping roll 12A and the second shaping roll 12B for adjusting the thickness of the acrylic resin strip and the third shaping roll 12C are used, and the first shaping roll 12 is used. The surface temperature of the roll 12A and the second shaping roll 12B was set to 90 ° C. The first shaping roll 12A and the second shaping roll 12B are not limited to the temperature setting, and can be appropriately set within a range in which the belt-like body can be maintained at a temperature of (Tg−40 ° C.) or higher.

(Cutting means)
As shown in FIG. 2, a part of the forming means 10, the belt-like body, and the cutting blade were surrounded by the heat retaining means 22 (thickness 75 mm, glass fiber).
As the cutting blade 21, a shear blade having an upper blade φ100 mm and a lower blade φ80 mm was used. Since the cutting blade 21 is kept warm by the heat retaining means 22, the temperature of the cutting blade 21 is regarded as the same temperature as the ambient temperature of the space surrounded by the heat retaining means 22 (that is, the interior of the housing formed by the heat retaining means 22). . The pass line was cut straight. Here, two sets of cutting blades 21 are used to cut a belt-like body having a width of 250 mm at two locations (each at a position 50 mm from the end), and two cut pieces having a width of 50 mm and a width of 150 mm. One cut was obtained.
Moreover, the temperature control means 23 provided with the five temperature control gas ejection nozzles 23A was installed so that the upper surface and bottom face of the inner wall of a housing might be met. The temperature control gas ejection nozzles 23 </ b> A are arranged at intervals of 130 mm, and each temperature control gas ejection nozzle 23 </ b> A has a φ1 nozzle hole through which the temperature control gas is ejected in a direction perpendicular to the surface of the acrylic resin strip 30. Were provided at intervals of 30 mm. Air was used as the temperature control gas. In addition, a hot air generator (manufactured by Takezuna Manufacturing Co., Ltd., “electric hot air generator model: TSK-61”) (not shown) is used to raise the temperature of the temperature adjusting gas and supply the temperature adjusting gas into the housing. Using. The supply amount of the temperature control gas from the hot air generator into the housing was set to about 15 m ³ / min. Moreover, the wind speed in the vicinity of the temperature control gas jet nozzle 15 </ b> A measured using an anemometer “model: 6511” manufactured by Nippon Kanomax Co., Ltd. as a measuring instrument was 4 m / sec.
Furthermore, a ceramic heater (not shown) was installed as a temperature control means.

(Measurement method of ambient temperature in housing and surface temperature of cut material)
The atmosphere temperature in the housing and the surface temperature of the acrylic resin cut product were measured using a thermometer (manufactured by Anri Keiki Co., Ltd., “trade name: dual thermo, model: AR-1501”). As a probe, a 510K model is used to measure the ambient temperature in the housing (installed in the atmosphere), and an N-shaped series model is used to measure the surface temperature (surface contact) of the cut material. When measuring the surface temperature (surface contact), a U-shaped series model was used.

[Example 1]
The set temperature of the ceramic heater was set to 60 ° C., and the acrylic resin strip was cut along the traveling direction to obtain a cut acrylic resin.
The ambient temperature in the housing and the surface temperature of the acrylic resin cut near the outlet of the cutting means were measured. The results are shown in Table 1. Note that the surface temperature of the cut acrylic resin near the outlet of the cutting means is considered to be the same as the temperature when cutting the acrylic resin strip.

<Evaluation>
(Evaluation of crack occurrence)
About the generation | occurrence | production state of the crack of 1 mm or more by the cutting blade in the cut part of an acrylic resin cut material, it confirmed visually and with the microscope, and evaluated it with the following evaluation criteria. The results are shown in Table 1.
○: No crack occurred.
X: Cracks are generated.

(Evaluation of deformation status)
The deformation state of 1 mm or more by the cutting blade in the cut portion of the acrylic resin strip was visually confirmed and evaluated according to the following evaluation criteria. The results are shown in Table 1.
○: No deformation.
X: There is deformation.

[Examples 2-3, Comparative Examples 1-2]
Evaluation was carried out in the same manner as in Example 1 except that the set temperature of the ceramic heater was changed to the value shown in Table 1. The results are shown in Table 1.

As is apparent from Table 1, the acrylic resin strip was held at a temperature of (Tg-40 ° C) or higher with respect to Tg of 93.7 ° C of PMMA constituting the acrylic resin strip, and (Tg-40 ° C) In the example in which the acrylic resin strip was cut within the range of ~ (Tg-15 ° C), no crack was generated during cutting. Moreover, the surface state of the obtained acrylic resin cut product was good.
On the other hand, since the temperature at the time of cutting was low in Comparative Example 1 in which the acrylic resin strip was cut at (Tg-68.7 ° C.) against Pg Tg of 93.7 ° C., cracks occurred.
Further, in Comparative Example 2 in which the acrylic resin strip was cut at (Tg-13.7 ° C.) against PMMA Tg of 93.7 ° C., the acrylic resin in which the cut portion was deformed because the temperature at the time of cutting was high. A cut was obtained.

  According to the manufacturing method and the manufacturing apparatus of the acrylic resin cut according to the present invention, the generation of cracks can be suppressed and deformation can be prevented. Therefore, the acrylic resin cut product obtained by the present invention is difficult to adhere to fragments due to the occurrence of cracks and the like, and the cut part is difficult to deform, so that it is suitable for optical applications such as an optical transmission body that requires high quality. Particularly preferred.

It is a schematic block diagram which shows an example of the manufacturing apparatus of the cut material of this invention. It is a schematic block diagram which shows the other example of the manufacturing apparatus of the cut material of this invention.

Explanation of symbols

1: Manufacturing apparatus for cut acrylic resin 10: Molding means 11: Die 12: Shaping roll 20: Cutting means 21: Cutting blade 22: Thermal insulation means 23: Temperature control means 24: Nip roll 30: Acrylic resin strip 40 : Acrylic resin cut

Claims (3)

After the acrylic resin is melt-extruded to form an acrylic resin strip, the acrylic resin strip is heated to a temperature (Tg−40 ° C.) or higher (however, Tg Is a glass transition point of the acrylic resin.) And the acrylic resin strip is cut with a cutting blade at a temperature of (Tg-40 ° C) to (Tg-15 ° C). A manufacturing method comprising :
A method for producing an acrylic resin cut product, wherein the acrylic resin strip and the cutting blade are surrounded by a heat retaining means for holding the acrylic resin strip at a temperature of (Tg-40 ° C) to (Tg-15 ° C). . Using the molding means for shaping the acrylic resin strip by melt extrusion of the acrylic resin and the heat at the time of melt extrusion, the acrylic resin strip is heated to a temperature (Tg-40 ° C.) or higher ( However, Tg is the glass transition point of the said acrylic resin.) The cutting provided with the cutting blade which cut | disconnects an acrylic resin strip at the temperature of (Tg-40 degreeC)-(Tg-15 degreeC). Means, and heat retaining means for holding the acrylic resin strip at a temperature of (Tg-40 ° C) to (Tg-15 ° C) ,
An apparatus for producing an acrylic resin cut product, wherein the acrylic resin strip and the cutting blade of the cutting means are surrounded by the heat retaining means . The said cutting means has the temperature control means which hold | maintains the said acrylic resin strip | belt body at the temperature of (Tg-40 degreeC)-(Tg-15 degreeC), The manufacturing apparatus of the acrylic resin cut material of Claim 2 .

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