JP2001123327A - Composite formed product and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite formed product whose formability, processability (drawability, and the like) and physical properties (strength, and the like) are not affected by a functional ingredient added to the formed product, and which permits the large reduction in the content of the functional ingredient, is thereby advantageous in the production cost, can sufficiently and quickly exhibit the original excellent functional properties, such as a deodorizing property and an antimicrobial property, of the functional ingredient, and is further highly safe even when used so as to be brought into contact with a human body, and to provide a method for producing the composite formed product. SOLUTION: This bonded type composite formed product comprising an inside component X and an outside component Y is obtained by coextruding a first resin (H) and a second resin (L) containing especially at least one functional ingredient (A) selected from the group consisting catechins, saponins, tea leaf powder, tear leaf extracts, and tannin (tannic acid) at a higher temperature than the melting points of the components so that the first resin (H) and the second resin (L) containing the functional ingredient (A) are disposed as the inside component X and the outside component Y, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to functionalities (deodorizing properties, antimicrobial properties, etc.), moldability, workability (stretchability) useful for various applications including filters for air conditioners and air purifiers. Etc.), physical properties (strength, etc.) and economy (cost). The present invention also relates to a method for producing such a composite molded article.

[0002]

2. Description of the Related Art <Polypropylene filter> A polypropylene wire that is advantageous in terms of cost and has excellent characteristics such as moldability, mechanical strength, water resistance and chemical resistance as a filter to be incorporated into air conditioners and air purifiers. Filters made of articles are widely used.

It is also known to knead a synthetic antibacterial agent into polypropylene for a filter, or to carry catechins, which are tea extract components, by external attachment or internal addition.

For example, Japanese Patent Application Laid-Open No. 1-99656 discloses an antibacterial electret filter made of polypropylene fibers into which 0.1% or more of an antibacterial agent has been kneaded. However, the antibacterial agents used in the examples of this publication are
Thiabendazole is a synthetic antibacterial agent.

[0005] Japanese Patent Application Laid-Open No. 7-148407 discloses an antivirus filter in which a virus inactivator containing an extract of tea as an active ingredient is kneaded into a filter material.
The tea extract components are tea polyphenols such as catechins. In the example, there is an example in which a tea extraction component is mixed with polypropylene, melted, formed into a film, cut, and formed into a nonwoven fabric.

[0006] Japanese Patent Application Laid-Open No. 8-266828 discloses an antivirus filter comprising a dust collecting filter and a filter to which a tea extraction component is attached. The tea extract components are tea polyphenols such as catechins. The filters impregnated with the tea extraction component include electret filters, HEPA filters, high-performance filters, medium-performance filters, and bag filters.

<Composite monofilament made of polypropylene> Japanese Patent Publication No. 63-3969 (Patent No. 145623)
No. 3) discloses a composite monofilament having high-melting-point polypropylene as a core component and a low-melting-point polyolefin as a sheath component, and mentions making the monofilament into a net-like material. However, it is not intended to carry an active ingredient such as an antibacterial agent. This monofilament has the required strength by the core component,
In addition, since heat-sealing property is obtained by the sheath component, it is easy to form a net or a non-woven fabric.

[0008]

In a method in which an extract component of tea such as catechins is internally added to polypropylene as a filter material and melt-molded, extraction which is exposed on the filament surface for the amount of internal addition. Since there are few components, there is a problem that effects such as deodorant properties and antimicrobial properties are insufficient. Therefore, in order to obtain a certain degree of effect, the amount of internal addition must be increased. At that time, however, the amount of relatively expensive catechins and the like is considerably increased, so that the cost is increased, and the spinnability, Stretchability and strength are inevitably reduced.

[0009] In addition to the polypropylene filters exemplified above, the moldability and the formability of filaments and sheets made of various resins for various applications can be improved.
It is desirable to obtain a molded product that can sufficiently and quickly exhibit deodorant properties, antimicrobial properties, and the like while ensuring workability and physical properties, and that can be manufactured at low cost.

[0010] Under such a background, the present invention provides a method for producing a molded product without adversely affecting the moldability, processability (eg, stretchability), and physical properties (eg, strength) of the internally added functional component.
In addition, the content of the functional component can be greatly reduced, which is advantageous in terms of cost, and the functional component inherently possesses excellent deodorant properties, antimicrobial properties, etc., is sufficiently and immediately effective. It is an object of the present invention to provide a composite molded article which is highly safe even when used in contact with the human body, and a method for producing the same.

[0011]

Means for Solving the Problems The composite molded article of the present invention comprises:
A joint-type composite molded product comprising an inner component X and an outer component Y, wherein the inner component X is formed of a first resin (H), and the outer component Y is a catechin , A second resin (L) containing at least one functional component (A) selected from the group consisting of saponins, tea leaf powder, tea leaf extract and tannin (acid). A composite molding characterized by the following characteristics.

[0012] The method for producing a composite molded product according to the present invention comprises the steps of:
(H) and a second resin (L) containing at least one functional component (A) selected from the group consisting of catechins, saponins, tea leaf powder, tea leaf extract and tannin (acid). Are co-extruded at a temperature not lower than their respective melting temperatures so that the first resin (H) becomes the inner component X and the second resin (L) containing the functional component (A) becomes the outer component Y. And a joining-type composite molded product composed of an inner component X and an outer component Y.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

<Composite Molded Product> The composite molded product of the present invention is a joint type composite molded product composed of an inner component X and an outer component Y. The inner component X is formed of the first resin (H), and the outer component Y is formed of the second resin (L) containing the functional component (A).

Then, the inner component X is formed of the first resin (H). The outer component Y is at least one functional component (A) selected from the group consisting of catechins, saponins, tea leaf powder, tea leaf extract and tannin (acid).
Is formed of the second resin (L) in which is blended. 1st resin (H)
The second resin (L) may be a single resin or a blend of two or more resins.

<Core-sheath bonded type composite molded product> One of the modes of bonding the composite molded product is a core-sheath bonded type composed of an inner component X as a core component and an outer component Y as a sheath component. Is a filament-shaped composite molded product. As long as it is a core-sheath type, it may be any of a concentric core-sheath type, an eccentric core-sheath type, a multi-core sheath type, and the like.

In this case, the inner component X is formed of a first resin (H) made of a high-temperature melting resin, and the outer component Y is formed of a low-temperature or high-temperature melting resin mixed with a functional component (A). It is particularly preferable that the second resin (L) is used. High-temperature fusibility and low-temperature fusibility are relative. It is desirable that the first resin (H) forming at least the inner component X serving as the core component has the necessary strength and dimensional stability when it is formed into a filament.

Even when the first resin (H) and the second resin (L) are both made of a high-temperature melting resin,
Even when the resin (H) is made of a high-temperature fusible resin and the second resin (L) is made of a low-temperature fusible resin, the first resin (H) and the second resin (L) may be polyolefins, In many cases, a combination of resins of the same type, such as polyesters, polyamides, and acrylics, is used, but a combination of different types of resins may be used as long as interlayer adhesion is obtained.

The first resin (H) is a high-melting resin, the second resin
The embodiment in which (L) is made of a low-temperature fusible resin is particularly useful when the second resin (L) serving as the outer component Y is to be made to have heat fusibility. A typical example of the combination at this time is a combination of polyolefins, for example, a high-melting resin is polypropylene having a melting point of 150 ° C. or more, and a low-melting resin is polyethylene (particularly high-density polyethylene or linear low-density polyethylene). ), Melting point 1
A combination of polypropylene at 35 ° C. or lower, or a blend thereof. Also in the case of a combination of polyesters, polyamides, and acrylics, the high-melting resin often has a melting point higher by 10 ° C. or 15 ° C. than the low-melting resin.

<Bimetal-Jointed Composite Molding> Another aspect of the joining of the composite molding is a Y / X or Y / X / Y-shaped bimetal composed of an inner component X and an outer component Y. It is a composite product of a joining type (that is, a side-by-side joining type) (in the case of Y / X, one is called an inside component X and the other is called an outside component Y).

At this time, the inner component X is formed of a first resin (H) made of a low- or high-temperature fusible resin, and the outer component Y is formed of a low- or high-temperature fusible resin containing the functional component (A). The second resin (L) can be formed from the above, and the degree of freedom is increased as compared with the case of the above-mentioned core-sheath bonding type.

<Functional Component (A)> The outer component Y is formed of the second resin (L) in which the functional component (A) is blended. In this case, the functional component (A) is catechin , Saponins, tea leaf powder, tea leaf extract and tannin (acid) are used, and catechins are particularly important. These are deodorant (deodorizing, odor eliminating, harmful gas component removing, etc.), antimicrobial (antibacterial, bactericidal, bacteriostatic, antifungal, antiviral, etc.) It is a component having functional properties such as allergic properties and antioxidant properties.

Among them, the catechins may be monomeric or oligomeric (including theaflavin). A particularly important catechin used in the present invention is a tea-derived catechin preparation having an increased catechin concentration. The main components of tea catechin are epigallocatechin, epigallocatechin gallate, epicatechin, epicatechin gallate, etc., but it is not necessary to isolate it into individual components, so it contains tea catechin consisting of a mixture of these richly Preparations (particularly those containing 20% or more, preferably 25% or more) can be suitably used as they are. 30% for commercially available tea-derived catechin preparations
Product, 50% product, 60% product, 70% product, 80% product, 90%
Since there are products, etc., it is easy to obtain them. Since catechins are also contained in various plants other than tea, such as Asenyaku, catechins derived from those plants can also be used.

Among the saponins, tea saponin can be obtained by extracting a saponin-containing component from tea leaves or tea seeds using an organic solvent or water, and then repeatedly purifying it using a means such as column chromatography. Tea saponins include steroid saponins and triterpenoid saponins, and any of them can be used for the purpose of the present invention. Saponins are a variety of plants other than tea, such as carrots, carrots, soybeans,
Saponins from such plants can also be used because they are also contained in Psycho, Amachauru, Loofah, Onji, Kikyo, Senega, Bakumondou, Mokutsu, Timo, Gossip, Licorice, Sankirai and the like.

Examples of the tea leaf powder or tea leaf extract include tea powders such as Ichiban-cha, No.2 tea, No.3 tea, Fukamushi, Kabushi, etc.
Alternatively, these tea extracts, black tea and oolong tea extracts can be used.

As the tannin (acid), a commercially available purified tannic acid can be used, and an extract of a tannic acid-containing natural plant such as a quintet or gallic or a semi-purified product thereof can also be used as it is.

<Ratio of Functional Component (A) in Outer Component Y> The ratio of the functional component (A) in the outer component Y is a ratio that allows the functional component (A) to exhibit its functionality. The ratio depends on the type of the second resin (L) and the functional component (A).
However, in general, it is often 1 to 30 parts by weight (preferably 2 to 20 parts by weight) with respect to 100 parts by weight of the second resin (L). . When the ratio of the functional component (A) is extremely low, the desired functions such as deodorant, antimicrobial, physiological activity, and antioxidant properties are not sufficiently exhibited, while the ratio is extremely high. Sometimes, it is negative in terms of cost, strength and feeling of the composite molded product.

<Ratio of Inner Component X to Outer Component Y> The ratio of the inner component X to the outer component Y in the composite molded product in the case of the core-in-sheath joint type is 30:70 to 80:20 by weight,
In particular, the ratio is preferably from 35:75 to 75:25. When the ratio of the outer component Y is too small, the functional component
Since the ratio of (A) is too small, the desired functionality is not sufficiently exhibited, and when the obtained molded article (filament) is required to have thermal adhesiveness, the thermal adhesiveness becomes insufficient. On the other hand, when the ratio of the outer component Y is too large, the ratio of the inner component X becomes relatively small, and thus the spinning property, the stretchability, the strength and the like become unsatisfactory.

The ratio of the inner component X and the outer component Y in the composite molded article in the case of the bimetal joint type can be set in a wider range than in the case of the core-sheath joint type. 95: 5, especially 35:75 to 90:
It can be set to 10.

<Production Method of Composite Molded Product> The above-mentioned composite molded product is prepared by mixing the first resin (H) and the functional component (A) with the second resin.
Resin (L) and the first resin (H) are the inner component X and the functional component
The second resin (L) in which (A) is blended can be produced by coextrusion molding at a temperature not lower than its melting temperature so as to be the outer component Y. Coextrusion molding can be achieved by using two or more extruders and discharging from a composite die in a linear or sheet form. In some cases,
It can also be formed into a net shape using a rotating die (base). The second resin (L) containing the functional component (A)
Can be prepared in advance by preparing a master batch having a high concentration of a material to be internally added, and mixing the master batch with the second resin (L) for molding.

The first resin (H) side, the functional component (A) compounded second
If necessary, add auxiliary agents such as antioxidants, UV absorbers, colorants, lubricants, antistatic agents, matting agents, flow improvers, plasticizers, and flame retardants to the resin (L) side if necessary. You can keep. In particular, on the side of the second resin (L) containing the functional component (A), together with a stabilizer such as an antioxidant, a molding aid effective for improving anti-agglomeration property or dispersibility such as metal soap. Is preferably used in combination to ensure uniform dispersion of the functional component (A) .In order to improve the loading of the functional component (A), copper salts, iron salts, calcium salts, titanium salts, aluminum salts An appropriate amount of a metal ion source such as a salt, a silver salt, a tin salt, a zinc salt, a chromium salt, and a cobalt salt may be used together.

When obtaining filaments, drawing is often performed after coextrusion. Although the stretching ratio is not particularly limited, if the ratio is too small, the strength tends to be insufficient depending on the application. Therefore, the stretching ratio is usually 3 times or more, especially 5 times or more. On the other hand, if the stretching ratio is too large, troubles such as delamination between the core and the sheath may easily occur. Therefore, the upper limit of the stretching ratio is generally up to about 10 times. When obtaining a sheet, stretching can be performed after co-extrusion if necessary. There are many uses that do not require stretching.

<Applications and Applications> When the composite molded article of the present invention is a filament, its thickness is arbitrary from fine denier to thick denier. The composite filament may be a multifilament or a monofilament. From the composite filament, it is also possible to obtain secondary products such as yarn, pile, cotton (cotton), woven fabric, nonwoven fabric, knitted fabric, net, rope, belt and the like. This composite filament or its secondary product is used for natural fiber (cotton, hemp, silk, wool, etc.), synthetic fiber (polyester, acrylic, polypropylene, polyethylene, nylon, vinylon, polyvinylidene chloride, polyvinyl chloride, polyurethane, etc.), It can also be used in combination with fibers such as semi-synthetic fibers (such as acetate), regenerated fibers (such as rayon), inorganic fibers (such as glass fiber and carbon fiber) and their secondary products. When the composite molded article of the present invention is a sheet (film), its thickness can be set arbitrarily. After obtaining a sheet-shaped composite molded product, it can be slit into a narrow width to obtain a yarn.

Examples of the composite molded product of the present invention or its secondary product include filters (filters for air conditioners, air purifiers, vacuum cleaners, etc.), interior materials (wall sheets, floor materials, etc.), rug materials ( Mats, carpets, etc.), footwear materials, industrial materials, clothing materials, bedding, sanitary materials, medical materials, daily necessities, kitchen utensils,
It is used for a variety of purposes, including toiletries, personal items, packaging materials, and car-related products.

One of the important uses is a front filter of an air conditioner or an air purifier. At this time, the composite molded article of the present invention is often used in the form of a monofilament. In this filter, since the functional component (A) is internally added to the outer component Y on the surface side, the deodorizing property can be quickly (in a single pass) after the air conditioner or the air purifier is operated. Functionality such as antimicrobial properties and antimicrobial properties are exhibited effectively and immediately. If the frame of the filter is of the same type as the outer component Y (for example, the second resin (L) of the outer component Y is a polyolefin, and the frame of the filter is a polypropylene molded product), this monofilament is heat-fusible. , It is easy to integrate into the frame.

[0036]

The present invention will be further described with reference to the following examples. Hereinafter, “parts” and “%” are expressed on a weight basis. MI is a melt index at a temperature of 190 ° C., and MFR is a melt flow rate at a temperature of 230.

Examples 1 to 7 <Preparation of Materials> As the first resin (H), (H ₁ ): polypropylene having a melting point of 163 ° C. and an MFR of 3.1 g / 10 min was prepared.

[0038] As the second resin _{(L), · (L 1} ): MI is high density polyethylene _{16.1g / 10min, · (L 2} ): MI is linear low density polyethylene 10.5g / 10min, · (L ₃ ): Three types of polypropylene having a melting point of 128 ° C. and an MFR of 17.3 were prepared.

(A ₁ ): 30% tea catechin (epigallocatechin, epigallocatechin gallate, epicatechin and catechin derived from tea having a total amount of epicatechin gallate of about 30%) formulations) · (a _2): 70% purity tea saponin, & (a _3): green tea powder, - (a _4): powder, - drying the hot water extract of green tea (a _5): purity 85% tannic acid was prepared.

Examples 1 to 7 The functional component (A) was mixed with a small amount of an antioxidant and an anti-agglomeration agent (dispersant) to the second resin (L), melt-extruded and pelletized. The pellets of the functional resin (A) and the second resin (L) obtained in this way are the outer (sheath) component Y, and the pellets of the first resin (H) are the inner (core) component X
And with two extruders equipped with a compound mouthpiece,
230 ° C for the sheath component Y and 2 for the core component X
The co-extrusion was performed at 05 ° C., and then the film was drawn about 6 times to obtain a 300-denier composite monofilament.
Next, a net was produced from this monofilament, and was thermally fused to a polypropylene frame to produce a framed front filter for an air conditioner. Table 1 shows the conditions.

Comparative Examples 1-2 The above-mentioned functional component (A) was mixed with the above-mentioned first resin (H) and melt-extruded to form pellets, and then the pellets were extruded at 230 ° C. Then, by stretching about 6 times, a monofilament of 300 denier was obtained, and a filter was produced. However, in Comparative Example 2, the yarn was broken at 6 times stretching, so the stretching ratio was 3 times.
Doubled. The conditions are also shown in Table 1.

FIGS. 1 (a) and 1 (b) show, respectively,
FIG. 2 shows a model cross-sectional view of the composite monofilament obtained in Example 1 and the monofilament obtained in Comparative Example 1.

[0043]

[Table 1]

<Test> The filters obtained in Examples and Comparative Examples were subjected to a deodorizing test and an antimicrobial test under the following conditions. The results are shown in Table 2 including the stretchability described above.

(Deodorization test) An air purifier which can be operated from the outside in a 1 m ³ container, the filter prepared above was installed inside, and 5 cigarettes were mounted on a smoke absorber in the container and ignited. When the first one burns out, shut off the smoke evacuator,
When the last cigarette burned out, the operation of the air purifier was started, and after 5 minutes and 30 minutes of the operation, the ammonia concentration was measured using a gas detector tube. The deodorization rate was determined based on how much the concentration after one minute decreased.

(Antimicrobial test) The antibacterial properties of each sample were examined under the following conditions.・ Test item: bacterial count reduction test ・ Test strain: Staphylococcus aureus AT
CC 6538P ・ Test method: Use the unified test method.・ Test results: Inoculation count [A] 1.0 × 10 ⁵ log A = 5.0 Unprocessed cloth count [B] 1.6 × 10 ⁷ log B = 7.2 (Standard cotton cloth is used for unprocessed cloth) log B-log A = 2.2> 1.5 (Test is valid) Change = log C-log A Change = (log B-log A)-(log C-log A)

[0047]

[Table 2]  Comparative example Example  1 2 1 2 3 4 5 6 7  Stretchability △ × ○ ○ ○ ○ ○ ○ ○ NH_Three Deodorization rate (%) 52 65 90 90 89 80 88 89 81 Antibacterial bacterial count log C 6.5 4.3 2.3 2.3 2.4 2.4 2.6 2.3 2.6 Change 1.5 -0.7 -2.7 -2.7 -2.6 -2.6 -2.4 -2.7 -2.40.7 2.9 4.9 4.9 4.8 4.8 4.6 4.9 4.6  (A 0.2 g sample was sampled for the antibacterial test.) (Stretchability was evaluated in the order of goodness in four stages of ○, □, Δ, ×).

As shown in Table 2, in Comparative Example 1 in which the amount of catechin (A ₁ ) added was 3 parts, as in Examples 1 to 3,
It can be seen that the functionality is insufficient. Also catechin (A ₁ )
In Comparative Example 2 in which the internal addition amount was 7 parts, although a certain degree of functionality was obtained (however, the functionality was not sufficiently exhibited for the internal addition amount), but catechin (A ₁ ) Since the amount of addition increases, it turns out that it is economically negative. Incidentally, catechin (A ₁₎ a first resin which is not internally added (H ₁₎
The NH ₃ deodorization rate when using only the monofilament stretched product is about 40%, and “measured value −40%” is the substantial deodorization rate. In Comparative Examples 1 and 2, catechin was used.
Since the first resin (H ₁ ) to which (A ₁ ) is internally added is extruded at 230 ° C., the amount of catechin (A ₁ ) volatilized at the time of extrusion molding is larger than that in the example. It seems to be.

<Antiviral test> In Examples 1, 4 and 6,
The obtained composite filament and the first resin (H₁) And the second resin
(L _Three) And a 1: 1 composite filament (Control)
Using a filter (3 cm x 3)
cm) and influenza virus floating on the specimen
0.2 ml of the solution was added dropwise and stored at 25 ° C. 24 hours after storage
Wash out the virus on the sample, and will in the wash solution
Infection titer (50% tissue culture infectious dose per ml (TCID₅₀)of
Log values were measured. Table 3 shows the results.

[0050]

[Table 3]

Examples 8 to 9 and Comparative Example 3 As the first resin (H ₂ ), a polyester having a high melting point and a second resin (L
₄ ) A low melting point copolyester was used. Using the second resin (L ₄ ) mixed with catechin (A ₁ ) and pelletizing the same, using the outer (sheath) component Y and the first resin (H ₂ ) pellet as the inner (core) component X, Extrusion molding was performed, followed by stretching to obtain a composite monofilament. In addition, a monofilament was obtained by blending catechin (A ₁ ) with the first resin (H ₂ ) and pelletizing the mixture, followed by stretching. A filter was prepared from these filaments, and a deodorizing test and an antimicrobial test were performed in the same manner as described above. Table 4 shows the conditions and Table 5 shows the results.

[0052]

[Table 4]

[0053]

[Table 5]

Example 10 Polyamide having a high melting point as the first resin (H ₃ ) and the second resin (L ₅ )
A low melting point copolyamide was used. Second resin (L
₅ ) 36 parts of catechin (A ₁ ) mixed with 6 parts of pelletized mixture, 30 parts of which are the outer component Y, the first resin (H ₃ ) pellet 10
Co-extrusion was performed using 0 parts as the inner component X, and Y
A bimetallic film-shaped composite molded product having a layer constitution of / X / Y = 20/100/20 μm was obtained. The composite molded article can sufficiently exhibit the desired functionality while reducing the amount of catechin (A ₁ ), and the functionality is exhibited quickly.

[0055]

According to the composite molded article of the present invention, functional components such as catechins added internally to the outer component Y
By (A), functions such as deodorant properties, antimicrobial properties, physiological activities, and antioxidant properties can be obtained, and also heat-fusing properties can be obtained.
When the composite molding is a composite filament, the necessary spinnability, stretchability, and strength can be obtained by the inner component X.

As usual, when molding a molded product such as a filament from a resin containing the functional component (A),
Although the amount of the functional component (A) exposed on the surface of the filament is small for the internal addition amount, in the present invention, the functional component (A)
Is internally added to the side of the outer component Y, so that the functionality of the used functional component (A) is effectively and promptly exhibited, and the amount of the functional component (A) used is minimized. As a result, the cost can be greatly reduced.

Since the functional component (A) such as catechins is a component contained in tea or the like, it is safe to use the composite molded article of the present invention in contact with the human body.

[Brief description of the drawings]

FIG. 1 is a model cross-sectional view of a composite monofilament obtained in Example 1 and a monofilament obtained in Comparative Example 1.

[Explanation of symbols]

 X: inner component, (H): first resin, Y: outer component, (L): second resin, (A): functional component

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08L 101/00 C08L 101/00 D01F 8/06 D01F 8/06 8/14 8/14 B // B29K 1 : 00 B29K 1:00 B29L 9:00 B29L 9:00 31:14 31:14 (72) Inventor Hiroki Miyamatsu 631 Terashimacho, Hamamatsu City, Shizuoka Prefecture (72) Inventor Takami Yoshida Ryuzenji Town, Hamamatsu City, Shizuoka Prefecture No. 536

Claims (4)

[Claims] 1. A joint-type composite molded product comprising an inner component X and an outer component Y, wherein the inner component X is formed of a first resin (H);
And a second resin wherein the outer component Y is blended with at least one functional component (A) selected from the group consisting of catechins, saponins, tea leaf powder, tea leaf extract and tannin (acid). L) A composite molded article characterized in that: 2. A core-sheath bonding type filament-shaped composite molded product comprising an inner component X as a core component and an outer component Y as a sheath component, wherein the inner component X has a high-temperature melting property. First resin made of resin
(H), and the outer component Y is at least one functional component selected from the group consisting of catechins, saponins, tea leaf powder, tea leaf extract and tannin (acid) ( The composite molded article according to claim 1, wherein the composite molded article is formed of a second resin (L) composed of a low-temperature or high-temperature fusible resin containing A). 3. Y composed of an inner component X and an outer component Y
/ X or Y / X / Y-shaped bimetal-joined composite molding, wherein the inner component X is formed of a first resin (H);
And a second resin wherein the outer component Y is blended with at least one functional component (A) selected from the group consisting of catechins, saponins, tea leaf powder, tea leaf extract and tannin (acid). The composite molded article according to claim 1, wherein the composite molded article is formed of: 4. A composition comprising a first resin (H) and at least one functional component (A) selected from the group consisting of catechins, saponins, tea leaf powder, tea leaf extract and tannin (acid). The second resin (L) and the first resin (H) are at or above their melting temperatures so that the inner component X and the second resin (L) containing the functional component (A) become the outer component Y. A method for producing a composite molded product, comprising co-extrusion molding at a temperature of 1 to obtain a joint-type composite molded product composed of an inner component X and an outer component Y.