JPH02269828A - Filament yarn made of polymer material - Google Patents

Abstract

PURPOSE:To obtain the filament yarn which is suitable for a binding material of good shaping properties, abrasion resistance and good appearance by using a molecularly oriented polymer material having roughened surfaces of reduced fluffing and twist binding properties and specific tensile modulus. CONSTITUTION:For example, an unoriented polymer material after melt extrusion (such as polyacetal) is subjected to orientation treatment such as drawing or milling to give a polymer material of molecularly oriented filaments, films of more than 4GP tensile modulus. The resultant polymer material is slitted into lines of 1mum to several mm width, surface-roughened with sandpaper to increase twist-binding properties to give the subject filament yarn.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a novel striatum made of molecularly oriented polymeric material. More specifically, the present invention relates to a filament made of a polymeric material that has good shapeability and torsional binding properties, and is excellent in abrasion resistance, appearance, and quality, and is suitable as a binding material.

BACKGROUND OF THE INVENTION Traditionally, wires such as iron wire, copper wire, steel wire, and aluminum wire have been used for twisting, wrapping, stretching, binding, etc. These wires have the desirable properties of being able to retain their bent shape when bent, as well as being able to resist twisting, but they can corrode or conduct electricity depending on the purpose of use. However, there are some disadvantages such as electromagnetic interference, non-flammability, heavy weight, and the fact that it sticks. For this reason, the surface is usually coated with a plastic such as vinyl chloride, but although this solves the surface quality problem to some extent, it has problems with metallic properties such as electrical conductivity, electromagnetic interference, nonflammability, and heavy weight. The issue remains unresolved.

Therefore, attempts have been made to use non-metallic materials such as plastic and paper to solve these problems, but linear binding materials made of such non-metallic materials have poor formability and bundling properties. It was inferior and was not sufficient to be used as a substitute for conventional wire.

By the way, recently, research has been conducted to dramatically improve the elastic modulus and strength by stretching polyacetal, which has excellent water resistance, chemical resistance, and fatigue resistance, after binding engineering plastic. Surprisingly, it was discovered that polypropylene had wire-like shapeability, and that similarly stretched polypropylene also had wire-like shapeability. , Eng, &Si
c,) J, Volume 14, No. 1O, Page 682, No. 1
”Volume 8, No. 6, Page 518].

The present inventor focused on the shapeability of the polyacetal and polypropylene stretched bodies, and investigated the properties of molecularly oriented polymer materials as a material to replace conventional wires, and found that the stretched bodies themselves are sufficient. It has been found that although it has excellent shapeability, it has the disadvantage of poor binding properties, especially the twist binding property when pulled in a twisted state, and cannot be used as a substitute for wire as it is.

On the other hand, the present inventor proposed a method in which the surface of a molecularly oriented material is first roughened for the purpose of surface treatment, and then treated with an organic compound that is soluble in the molecularly oriented material (JP-A-6
3-99244). In this method, the roughened part is roughened more deeply with an organic compound, and
This is based on the fact that even areas with a small degree of surface roughening promote roughening to a greater extent, and the surface condition shows significant microcracks and microvoids, and sharp corners are observed in the uneven parts. Therefore, although this method is effective for adhering and covering surfaces, in some cases when used as a binding material, the surface may be subject to significant wear due to rubbing.
Damage to the object to be tied or appearance due to fuzz,
There were problems such as an unpleasant feel.

Problems to be Solved by the Invention Under these circumstances, the present invention provides a filament made of a polymeric material that has good formability and torsional bundling properties, and has excellent wear resistance, appearance, and quality. This was done for the purpose of donating one's body.

Means for Solving the Problems As a result of intensive research to develop a linear binding material that overcomes the drawbacks of metals and can replace wire, the inventor unexpectedly found a polymer material such as polyacetal. By roughening the surface of the stretched body, the torsional cohesion is dramatically improved, and by applying appropriate chemical treatment, it is possible to produce a stretched body with suppressed fuzz, wear resistance, good appearance and quality. It was discovered that a linear binding material could be obtained, and based on this knowledge, the present invention was completed.

That is, the present invention provides a molecularly oriented polymer material that has a rough surface with substantially no fuzz, has torsional cohesion and a tensile modulus of 4 GPa or more, and a polymer material that is used in a predetermined manner. The object of the present invention is to provide a filamentous body made of a polymeric material and coated with a coating material.

The present invention will be explained in detail below.

Examples of the material for the filament of the present invention include polyacetal, 3,3-polybis(chloromethyl)oxacyclobutane, 3,3-polybis(fluoromethyl)oxacyclobutane, 3,3-polybis(hydroxymethyl)oxacyclobutane, Poly(3,3,3-trifluoro-1,
2-epoxypropane), polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, liquid crystal polyester, nylon 6, nylon 6
6. Polyvinylidene fluoride, polyvinylidene chloride, polyvinyl alcohol, polytetrafluoroethylene, polyvinyl chloride, polyacrylonitrile, polycarbonate, aromatic polyimide, aromatic polyamideimide, polyether ether ketone, poly(p-phenylene sulfide), poly A polymer compound such as ether sulfone and a composition thereof whose molecules are oriented in at least one axis direction are used. The polymer compound may be a homopolymer or a copolymer.

Such a molecularly oriented polymer material can be obtained by subjecting an unoriented polymer material, which is usually obtained by melt extrusion or the like, to an orientation treatment such as stretching, rolling, or isostatic extrusion. Among these oriented polyacetals, molecularly oriented polyacetals with a tensile modulus of 4 GPa or more can usually be used, but polyacetals with a tensile modulus of 1 OGPa or more, particularly 2 GPaPa or more, and 3QGPa or more can be used. It is advantageously used because it has good shape and high rigidity. Further, the tensile strength of this oriented body is usually Q, 5 GPa or more, but 1, Q GPa or more, preferably 1.
3. Pa or higher, particularly 1.5 GPa or higher, is advantageously used in terms of high strength.

In addition, polymer materials with molecular orientation other than polyacetal,
For example, 3,3-polyhis(chloromethyl)oxacyclobutane, 3,3-polyhis(fluoromethyl)oxacyclobutane, 3,3-polybis(hydroquinemethyl)oxaneclobutane, poly(3,3,3-trifluoro-
1,2-epoxypropane), polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, liquid crystal polyester, nylon 6, nylon 66, polyvinylidene fluoride, polyvinylidene chloride,
polyvinyl alcohol, polytetrafluoroethylene,
Polyvinyl chloride, polyacryloni!・SJk, polycarbonate, aromatic polyimide, aromatic polyamideimide, polyether ether ketone, poly(p-phenylene sulfide), polyether sulfone, and their compositions usually have a tensile modulus of 4 GPa or more. However, the tensile modulus is 6 GPa or more, especially 10 GPa.
a or higher, and even 20 GPa or higher has excellent formability;
It is advantageously used because it has high rigidity.

There are no particular limitations on the shape of these molecularly oriented polymeric materials used as raw materials in the present invention, such as filament, film, sheet, fiber, deformed bodies with various cross-sectional shapes, cotton, and twisted thread. It may be of any shape, such as spherical, pellet, etc., as long as it can be processed into a filament.

In the case of filaments, wires with diameters ranging from 1 μm to several mm are usually used, but in particular O, l+++m
A thickness in the range of several mm is preferable because it can be easily processed into a binding material. The film is usually cut into thin strips having a thickness ranging from several micrometers to several tens of micrometers, and is used as it is or after being twisted into a linear shape. In addition, in the case of an irregularly shaped object with a cross-sectional shape different from a normal circle, depending on how it is used, for example, the cross-sectional shape may be an oval, a triangle, a rhombus, a star, a gear, or a shape with a circle on top of a flat shape. It is used as a body.

In the present invention, it is necessary to roughen the molecularly oriented polymeric material having the above properties and shape. This roughening significantly improves cohesiveness. Before roughening, polymer materials have smooth surfaces, except for irregular shapes with grooves, such as the star shape and gear shape mentioned above, so they can be twisted. Poor cohesiveness when stretched. However, by roughening the surface, cohesion can be significantly improved. In general, the larger the unevenness is than the small unevenness, the higher the cohesiveness of this surface roughening. Since the tensile strength decreases, it is necessary to take appropriate measures to obtain an appropriate roughness suitable for the purpose of use as a binding material.

The degree of this surface roughening is, for example, when the wire diameter is Q, 1 mm to several rr.
In the case of a filament or film having a diameter of na, it is usually suitable for many purposes in an uneven state with a diameter in the range of several μm to several 100 μm, but it may be outside this range depending on the purpose of use.

In addition, the depth of the roughening is usually in the range of several μm to several hundreds of μm, preferably several μm to several μm with relatively little decrease in the strength of the material.
It is selected within a range of several tens of micrometers.

The depth of this roughening can be increased or decreased depending on processing conditions.

There are no particular restrictions on the method for roughening the surface, and mechanical methods such as sandblasting, grinding with sandpaper, a grinder, a file, etc., and grooving with a die are generally used. Normally, when the surface is roughened by a mechanical method, the surface of the molecularly oriented polymer material becomes fluffy, and in this state, the appearance and quality are poor, and the wear due to rubbing is large, and the material tends to bunch up. This is not desirable as it may damage the object. Furthermore, since light is diffusely reflected by the fluff, even if it is a transparent polymer material with oriented molecules, the appearance will become devitrified.
Depending on the purpose of use, this may be undesirable.

In the present invention, the above-mentioned problems can be solved by substantially removing the hair on the surface caused by such mechanical roughening, for example, by applying a special chemical treatment. Ta.

This chemical treatment creates a state in which a chemical substance that has chemical activity such as reactivity or decomposition is brought into contact with or attached to the roughened surface of the polymer material with molecular orientation, and in this state, Normally, this can be effectively achieved by treatment at a temperature below the melting temperature of the polymeric material, preferably below the softening temperature, but in some cases, it may be achieved by promptly performing heat treatment at a temperature above the melting temperature. can.

In the case where the polymer material is polyacetal with molecular orientation, examples of the chemical substance include resorcinol, 70lamin, catechol, gallic acid, an initial condensate of resorcinol and formaldehyde, trichloroacetic acid, dichloroacetic acid,
Carboxylic acids such as acetic anhydride, acetic acid, formic acid, oxalic acid, benzoic acid, terephthalic acid, sulfonic acids such as benzenesulfonic acid, p-toluenesulfonic acid, trifluoromethylsulfonic acid, benzoyl chloride, tri-toluenesulfonyl chloride, etc. These include acid halides, halogens such as chlorine, bromine, and iodine, and oxidizing agents such as dichromic acid, chromic acid, potassium permanganate, perchloric acid, hypochlorous acid, and hydrogen peroxide. It is not limited to. Furthermore, in the case of a polymer material with molecular orientation other than polyacetal, the chemical substances listed above or other chemical substances can be appropriately selected and used.

Furthermore, chemical etching can be promoted by using an acid, alkali, peroxide, etc. as a catalyst together with the above chemical substances. By using other ammonia, amines, alcohols, epoxy compounds, modified polyamide compounds, acrylic compounds, isocyanate compounds, peroxides, crosslinking agents, etc., in addition to smoothing the surface of polymer materials, copolymerization, crosslinking, etc. You can also do

In the present invention, in addition to such a chemical treatment method, the surface of the roughened polymer material is treated by heat treatment using, for example, a high temperature heating medium, gas flame, high temperature plate, high frequency, far infrared rays, ultrasonic waves, etc. By methods such as melting the fluff, physicochemical decomposition of the fluff by steam blasting, corona discharge, and plasma discharge, etc.
It is possible to suppress fuzz caused by surface roughening.

In this way, the molecules are oriented with a rough surface state that substantially suppresses fuzzing; the polymer material has approximately three times the cohesiveness, especially the torsional cohesiveness, compared to one without surface roughening. It also improves. For example, the molecular orientation of the present invention I; the cohesiveness of polyacetal varies depending on the form of the polyacetal used and the purpose of use, but the diameter is 0.1111
! For filaments of one to a few centimeters, the torsional binding force is usually in the range of several tens of grams to 100 kg, which corresponds to approximately 1 to 20% of the tensile strength. For example, the torsional binding force of a polyacetal filament with a diameter of 0.5 mm is 2 to 9, and when the diameter is l + * m, the torsional binding force is 2.
0 kg, which is on the same level as conventional wire.

In the present invention, depending on the purpose of use, a filament made of a molecularly oriented polymeric material having a rough surface state that substantially suppresses fuzzing may be coated with a coating material. Its shape may be circular, oval, triangular, or
It can take any shape, such as a diamond, star, gear, or a circle on top of a hot plate. For example, a wire with a cross section in the shape of a circle on top of a flat shape is known as a PVC-coated wire called vinyl tie. By covering it in a flat shape, it is possible to make it wide and bundled, and also to add fashionability.

There are no particular restrictions on the type of the coating material, and examples include epoxy resins, polyamide resins, polyester resins, polyolefin resins, polyether resins, polycarbonate resins, urea resins, melamine resins, silicone resins, and fluorine resins. Resin, vinyl chloride resin, acrylic resin, polyvinylidene fluoride, polyvinylidene chloride,
Polyvinyl acetal, vinyl acetate resin, phenolic resin, polyvinyl alcohol resin, polysulfone resin,
Plastics such as polystyrene resin, polyether sulfone resin, polyphenylene sulfide resin, cellulose resin, and compositions thereof, natural rubber, SBR,
IR%BRSEPR, butyl rubber, polyisobutylene,
Chloroprene rubber, neoprene rubber, NBR, polyurethane rubber, polysulfide rubber, halogenated rubber, polybutadiene rubber, polyethylene polypropylene rubber, acrylic rubber, chlorohydrin rubber, fluorine rubber, silicone rubber, various synthetic resins Depending on the purpose of use, choose from elastomers such as elastomers and their compositions, cellophane, cellulose, cellulose derivatives, chitin, alginic acid derivatives, polysaccharides such as paper, metals, metal compounds, glass, ceramics, leather, synthetic fibers, etc. You can choose as appropriate.

The polymeric materials used in the present invention include various elastomers such as polyamide elastomer, polyester elastomer, polyurethane elastomer, glass fiber, carbon black, polyurea, polythiourea, etc., for the purpose of improving their chemical inertness. Phenol resin, urea resin, etc. can be blended. Furthermore, if necessary, additives such as antioxidants, ultraviolet absorbers, heat stabilizers, flame retardants, oils, lubricants, plasticizers, antistatic agents, colorants, and softeners, and various fillers such as carbon Fibers, aramid resins, aromatic polyimides, aromatic polyamideimides, liquid crystal polyesters, various synthetic fibers, various polymeric materials, whiskers, ceramics, etc. can be added to impart the desired properties.

Effects of the Invention The filamentous body made of the molecularly oriented polymer material of the present invention has excellent shapeability and cohesiveness, is combustible, and has a high tensile modulus,
It has moderate bending rigidity and hardness, so it is softer to the touch than conventional wire, and it also has high tensile strength, is significantly lighter than steel, does not buckle, and has excellent bending fatigue resistance, durability, and creep resistance. It has characteristics such as moderate elongation, knot strength and hooking strength at practical levels, and has excellent S-5 characteristics, high dimensional stability, low thermal shrinkage, and linear expansion. It is safe, has a small coefficient, is electrically insulating, has no electromagnetic interference, has appropriate heat resistance and weather resistance, has excellent chemical resistance, water resistance, solvent resistance, corrosion resistance, cryogenic resistance, etc. Moreover, it has many advantages such as being able to be formed into any shape such as a line, cotton, sheet, chig, tube, sheet, tape, or film.

A filament made of a polymeric material having such properties can be widely used as a new material to replace conventional wire. For example, it can be used as a substitute for household wire or craft wire, as a binding material for food bagging, as a binding material for cords, as a binding material for gardening such as flowers and vegetables, as a binding material for fruits and vegetables, and as a bird deterrent. Tension lines, bird-prevention nets, fruit tree shelves, tension lines in greenhouses, splints for gardening, lines for attracting, fruit bag fixings, nori, materials for aquaculture shelves such as oysters, hanging lines, and bags. Materials for handbag wire, curtain rails, art flowers, anti-frost substitutes for wire used in wire mesh, tension wire for blackout nets, binding tools, clips, refills for staplers, various handicraft materials, aggregates for dolls, toys. Materials, children's teaching materials, flexible materials for stands, cables for TV antennas, art supplies, materials for hangers, duct hoses, umbrella bones, obi belts, materials for folk crafts, rattan, etc., but are of course limited to these. It is not something that will be done.

However, the present invention is not limited to these examples in any way.

In addition, the molecularly oriented polymer materials in the following examples are disclosed in JP-A-60-183122 and JP-A-61-202.
It was prepared according to the method described in No. 820. FIG. 1 shows a block diagram of an example of a manufacturing process suitable for producing a filament made of a polymeric material using the polymeric material.

In FIG. 1, a molecularly oriented polymer material A enters a roughening section 2 from a feeding roll l, and is mechanically roughened.
Next, a chemical substance is contacted or attached in a chemical treatment section 3 , and curing is performed in a heat treatment section 4 , after which it passes through a take-up roll 5 and is wound up on a take-up roll 6 . In this case, chemical treatment is performed by curing. When a high-volume or gaseous chemical substance is used in the chemical treatment section 3, the chemical treatment is performed simultaneously with the attachment of the chemical substance. The heat treatment section 4 can perform the heat treatment using conventional methods such as an external heating method using steam, an electric heater, etc., and an internal heating method using electromagnetic waves such as high frequency, infrared rays, far infrared rays, and laser.

In addition, in the process shown in FIG. 1, an annealing device,
Other processing units such as cooling devices, cleaning devices, etc. can also be incorporated.

In addition, each physical property was determined as follows.

(1) Tensile modulus and tensile strength Measured using an Instron tensile tester according to JIS K7113 (1981). The tensile modulus was measured using a differential transformer strain meter method, and the tensile strength was measured by winding it several times around a grooved stainless steel reel jig with a 160- reel distance at a reel distance of 20 crt+ and a tensile speed of 10 cm/min. .

(2) Torsional binding force As shown in Figure 2, one end of the molecularly oriented polymer material is twisted and bound around a 10-mm stainless steel round rod fixed to the upper chuck of the Instron, and the other end is tied to the lower chuck. The bundle was fixed and pulled, and the maximum stress at which the bundle unraveled was measured, and this was taken as the torsional binding force.

Note that the number of twists was 10.

(3) Bending Stiffness The monofilament was measured using an Olzen stiffness tester (manufactured by Toyo Seiki Seisakusho) in accordance with ASTM D747.

(4) The appearance of fluff on the surface was visually observed to see if there was substantially no fluff.

(5) Surface roughening condition The surface was observed using a scanning electron microscope.

(6) Shaping The bending state when bending was investigated. When the bending angle Oa can be maintained, it is indicated as ○, and when the bending angle returns a little after bending, and the bending angle is approximately 30@, it is indicated as △.

Examples 1 to 7, Comparative Examples 1 to 3 Stretched bodies of polyacetal homopolymers having different tensile moduli [Tenac 3013, manufactured by Asahi Kasei Corporation, registered trademark name] were continuously stretched by the method shown in FIG. Processed. For sandblasting, No. 120 alumina was used as the abrasive and the blasting pressure was 4ky/cm2.For the chemical treatment, an aqueous solution containing 40% by weight of resorcinol was used, and the temperature in the heat treatment section was set at 160°C for 1 residence time. It was a minute.

The properties of the product obtained are shown in Table 1. For comparison, the properties of untreated wire (Comparative Example 1), sandblasting only (Comparative Example 2), and commercially available iron wire (Comparative Example 3) are also listed in the table.

Example 8.9, Comparative Examples 4 to 6 A stretched polyacetal body with a tensile modulus of 30 GPa and a wire diameter of 0 mm was roughened under different sandblasting conditions, and chemically treated under the same conditions as in Example 1. went. The properties and surface condition of the obtained product were investigated. The surface condition was observed by observing the size of unevenness and the state of fluff using an electron microscope.

The results are shown in Table 2.

For comparison, heat-treated samples and sandblasting-only samples are also listed in the table.

Furthermore, enlarged views of the surface shapes of the samples obtained in Example 9 and Comparative Examples 5 and 6, taken with a scanning electron microscope, are shown in FIGS. 8, 9, and 10, respectively.

Examples 1O to 14, Comparative Example 7.8 Stretched bodies of polyacetal with a tensile modulus of 40 GPa or more and different wire diameters were roughened using No. 46 alumina at a blasting pressure of 4729/cm" and then carried out. Chemical treatment was carried out in the same manner as in Example 1. The properties of the obtained product were investigated and the results are shown in Table 3. For comparison, commercially available iron wires are also listed.

Examples 15 to 17 Tensile modulus: 40 GPa, wire diameter: 1. After roughening the stretched polyacetal of 0 mm with No. 46 alumina at a sandblasting pressure of 4 kg/cya, different chemical treatments were performed.The properties and surface condition of the obtained product were investigated. are shown in Table 4.

Examples 18-20. Comparative Example 9.10 A polyacetal stretched body obtained by stretching 92912M25-04 (manufactured by Polyplastics Co., Ltd., registered trademark of Ahiki tar copolymer) was sandblasted using No. 120 alumina at a pressure of 4 kg 7 cm. After the surface was roughened with ", it was chemically treated using an aqueous solution containing 40% by weight of resorcinol at a temperature of 160° C. and a residence time of 1 minute in the heat treatment section. The properties of the obtained product are shown in Table 5.

For comparison, a sample without any treatment (Comparative Example 9) and a sample with only sandblasting treatment (Comparative Example) are also listed in the table.

Examples 21 to 26, Comparative Example 11 Stretched polyacetal bodies with a tensile modulus of 4 QGPa and a diameter of 8 shoulders were subjected to surface treatment under the same conditions as in Example 1. This was coated with the coating material shown in Table 6, and then
As shown in the figure, we created an odd-shaped body with a circular cross section on a flat surface. The properties of the product obtained are shown in Table 6. For comparison, commercially available PVC-coated wire (iron core 0.5-,
The thickness of polyvinyl chloride (0.25 m+m, width 4 mm) is also listed in the table.

Examples 27 to 30, Comparative Example I2 A stretched polyacetal body having a tensile modulus of 40 GPa and a diameter of 1-0 mm was subjected to surface treatment under the same conditions as in Example 1. This was coated with the coating material shown in Table 7 to produce a coated body with a circular cross section as shown in FIG.

The properties of the product obtained are shown in Table 7. For comparison, a commercially available PVC coated wire (color wire #18, iron core 1.0 - coating thickness, O, l+mm) is also listed in the table.

Examples 31 to 34 Irregularly shaped stretched polyacetal bodies having cross-sectional shapes as shown in FIGS. 4 to 7 were prepared, and the surfaces of these stretched bodies were subjected to surface roughening under the same conditions as in Example 1. The properties of what was obtained are shown in the 8th
Shown in the table.

Example 35 A stretched polyacetal body with a wire diameter of 1.0+u+ was roughened using No. 46 alumina at a blasting pressure of 4ky/cII'', passed through the flame of a gas burner at high speed, and immediately rinsed with water. The properties of the product obtained are shown in Table 9.

Examples 36 to 41, Comparative Example 13.14 Polyethylene with different tensile moduli [Santic J340
, manufactured by Asahi Kasei Kogyo Co., Ltd., registered trademark name], 46
Blasting pressure 4.0kg/cra"
After sandblasting, flame treatment was performed in the same manner as in Example 35.

The properties of the product obtained are shown in Table 1O. For comparison, the table also shows the untreated sample (Comparative Example 13) and the sandblasted sample (Comparative Example 14).

Examples 42 to 46, Comparative Example 15.16 Polypropylene with different tensile modulus [Asahi Kasei Kogyo Co., Ltd.]
After sandblasting the stretched body of [Made in Japan] using No. 46 alumina at a blasting pressure of 4 kg/crl,
Flame treatment was performed in the same manner as in Example 35. The properties of the product obtained are shown in Table 11.

In addition, for comparison, the untreated sample (Comparative Example 15) and the sample only subjected to sandblasting treatment (Comparative Example 16) are also listed in the table.

Examples 47 to 49, Comparative Examples 17.18 Stretched bodies of nylon with different tensile moduli [Leona 66: manufactured by Asahi Kasei Industries, Ltd., registered trademark name] were blasted using No. 46 alumina at a blast pressure of 4 kg7 am" After sandblasting, it was chemically treated in the same manner as in Example 1. The properties of the obtained product were examined and the results are shown in Table 12.
For comparison, a sample without any treatment (Comparative Example 17) and a sample with only sandblasting treatment (Comparative Example 18) are also listed in the table.

Examples 50 to 53, Comparative Example 19.20 Stretched bodies of polyethylene terephthalate (Sunpet; manufactured by Asahi Kasei Industries, Ltd., registered trademark) having different tensile moduli were blasted using No. 46 alumina at a blast pressure of 4 kg7 c.
After sandblasting with m'', it was chemically treated in the same manner as in Example 1.The properties of the obtained product were investigated and the results are shown in Table 13.In addition, for comparison, the untreated product (
Comparative Example 19) and the one that was only subjected to sandblasting (Comparative Example 20) are also listed in the table.

Example 54 Wire diameter 1. A stretched polyethylene terephthalate body of 0 mm was blasted using No. 46 alumina at a blast pressure of 4 kg/
After sandblasting with "cta", 0.05mm
Laminated with polyethylene terephthalate to a thickness of . The obtained product had no fluff on the surface and exhibited properties similar to those of Example 52.

Examples 55 to 57, Comparative Examples 21 and 22 Stretched polyvinylidene heptadide having different tensile moduli were
Using No. 46 alumina, blasting pressure 4 kg/cm
After being sandblasted, the sample was subjected to flame heat treatment in the same manner as in Example 35. The properties of the obtained t are shown in Table 14.

In addition, for comparison, the table also includes a sample that is unreliable (Comparative Example 21) and a sample that is only subjected to sandblasting treatment (Comparative Example 22).

Examples 58-61. Comparative Example 23.24 Stretched bodies of polyvinyl alcohol with different tensile moduli were
Using No. 46 alumina, blasting pressure 4 kg/cm
” and then treated with steam at 140°C for 1 minute. The results of examining the properties of the obtained products are shown in Table 15. For comparison, the untreated product (Comparative Example 23) and the sandblasted Only processing (comparative example 2)
4) is also listed in the table.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a manufacturing process for obtaining a filament made of a polymeric material according to the present invention, in which symbol A is a molecularly oriented polymeric material, l is a feeding roll, 2 is a roughening section, 3 is a chemical treatment section, 4 is a heat treatment section, 5 is a take-up roll, and 6 is a take-up roll. FIGS. 2 and 3 are diagrams each showing a cross-sectional shape of an example in which a filament made of a molecularly oriented polymer material of the present invention is coated with a coating material, and the reference numeral A in the figure represents a molecularly oriented polymer material. The material, B, is a covering material. Figures 4 to 7 are views showing different examples of irregular cross-sectional shapes of the filament made of polymeric material of the present invention, and Figures 8 to 1 respectively.
The O diagrams are enlarged electron microscope photographs showing examples of different surface shapes of metal structures of filamentary bodies made of polymeric materials of the present invention. Patent Applicant: Asahi Kasei Kogyo Co., Ltd. (and 2 others) Ward 10

Claims (1)

[Claims] 1. Having a rough surface with substantially no fluff,
A filament made of a molecularly oriented polymer material having torsional cohesion and a tensile modulus of 4 GPa or more. 2. A filament formed by covering a wire made of the polymeric material according to claim 1 with a covering material. 3. A binding material composed of the filamentous body of claim 1.