JPH10168689A - Slit yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a slit yarn useful for decomposing and removing harmful materials, etc., excellent in appreciation of beauty and decorativeness, by laminating an inorganic thin film layer and a titanium oxide containing layer to at least one side of a substrate film and micro-slitting the laminate. SOLUTION: An inorganic thin film layer B and a titanium oxide-containing layer C are laminated to at least one side of a substrate film A to give a laminate (e.g. laminate B/A/B/C, C/B/A/C, B/A/C/B, A/B/C, A/C/B, A/B/C/C/B/A, C/B/A/A/B/C, etc.), which is micro-slit to give the objective slit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a decorative material having excellent decorativeness.
The present invention relates to a slit yarn that is a fiber containing titanium oxide and has a photocatalytic activity and the like, and has antibacterial and sterilization properties against bacteria, and also has the performance of decomposing and deodorizing harmful substances.

[0002]

2. Description of the Related Art Recently, interest in environmental preservation and environmental hygiene has increased, and products for removing and decomposing harmful substances, antibacterial treatment, deodorizing, and the like have been developed. Most of these use chemicals, so the toxicity and side effects of those chemicals are a problem, and the effects on the environment cannot be ignored.
May have challenges. In order to solve the above-mentioned problems, many products using inorganic substances have been proposed, but if the method of use is difficult to use as it is, the durability by detachment from the product, etc. In the case where durability is to be maintained, there are many problems such as reduction of the effect.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a slit yarn excellent in aesthetics and decorativeness.

[0004]

According to the present invention, there is provided a slit film characterized in that a laminate having at least an inorganic thin film layer B and a titanium oxide-containing layer C is micro-slit on at least one surface of a base film A. A slit yarn in which C is a layer containing titanium oxide fine particles, and the laminated yarn is bonded so that the configuration of the laminate is C / B / A / A / B / C. Wherein the laminate is a slit yarn that is bonded so that the configuration of the laminate is A / B / C / C / B / A, and B is a slit yarn that is a vapor-deposited metal layer. And B is a slit yarn that is a vapor-deposited metal compound layer.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The substrate film in the present invention is:
Polyesters such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, and copolymer polyesters containing these units as main components;
Polyamides such as nylon, 6,6-nylon and copolymerized polyamides containing these units as main components, polyolefins such as polyethylene and polypropylene and copolymerized polyolefins containing these units as main components, aromatic polyamides, polyimides and polyvinyls Alcohol-based polymer,
Among these, polyethylene terephthalate, polyesters having 85% by weight or more of polyethylene terephthalate units, polyethylene and polypropylene, copolymerized polyolefins containing these units as main components, 6-nylon and 6,6-nylon And films made of polyamides such as copolymerized polyamides containing these units as main components are more preferable in view of their physical properties and economics. These films may be non-stretched, uniaxially stretched or biaxially stretched by melt-extruding the above-mentioned polymer as a raw material polymer. It may be one obtained by adding and / or coating a colorant such as an absorbent, a pigment, a thermal antioxidant, or a fine particle inorganic filler such as silicon oxide.

The thickness of the substrate film of the present invention is not particularly limited, but is preferably in the range of 1 to 100 μm, and more preferably in the range of 4 to 30 μm from the viewpoint of mechanical properties and handling. When the inorganic thin film layer B is provided directly on A, the base film A of the present invention is subjected to an undercoat layer, another chemical treatment, or a physical treatment such as a plasma treatment. It may be something.

The inorganic thin film layer B provided on at least one side of the substrate film of the present invention is not limited in its forming method, but any known method such as coating, vapor deposition, etc. can be adopted. Among them, the vapor deposition method is more preferable in terms of environment, economy and operability, and is a preferred method of the present invention. The inorganic thin film layer B imparts decorativeness and durability to the titanium oxide-containing layer having a photocatalytic action and the like.
Aluminum, gold, silver, tin, platinum, chromium, nickel,
There are metals such as copper, and metal compounds such as aluminum oxide, silicon oxide, aluminum nitride, silicon nitride, and tin oxide. These may be used alone, or a mixture of two or more thereof or a laminate thereof may be used. The thickness of the inorganic thin film layer B is not particularly limited, but may be in the range of 20 to 2000 °, preferably 20 to 1000 °. If the angle is 20 ° or less, both the decorative property and the durability (protection of titanium oxide) are insufficient. If the angle is 2000 ° or more, the slit yarn is not preferable in terms of flexibility and economical disadvantage.

The titanium oxide-containing layer C in the present invention is not limited in its formation method, but is formed by sputtering evaporation of titanium oxide, applying a composition containing an organic titanium compound, and drying and heating to form a titanium oxide-containing layer. And a method of applying and drying a composition comprising a binder component such as a polymer and a solvent to titanium oxide fine particles and drying. Among them, nm which is commercialized as titanium oxide for photocatalyst
It is preferable to use a titanium oxide fine particle having a particle diameter coated with a binder component such as a polymer. The thickness of the titanium oxide-containing layer C is not particularly limited, but is preferably in the range of 0.1 to 10 μm.

In the laminate of A, B and C of the present invention,
/ A / B / C, C / B / A / C, B / A / C / B, A /
B / C, A / C / B, A / B / C / C / B / A, C / B
The configuration of the laminate such as / A / A / B / C may be appropriately selected and adopted according to the use of the slit yarn. Other layers such as an adhesive layer, a colored layer, a protective layer, a mesh layer, an undercoat layer, and the like may be arranged on and between the layers having the above layer configuration. The present invention is a yarn obtained by slitting the above-mentioned laminate, and slitting, even when a titanium oxide-containing layer is present between the layers, since titanium oxide is released from the slit portion, the effect of titanium oxide is reduced. Be demonstrated. Further, the effect of the inorganic thin film layer as a transparent protective layer having excellent metallic luster and hardness is added. The slit yarn of the present invention, the yarn as it is, or wound in various forms around fibers such as polyester filaments,
In a state where the fibers such as polyester filaments are wound in various forms in a state where they are aligned and twisted, or in a state where the yarns are used as a core yarn, and are used in whole or in part in a woven fabric, a knitted fabric, and a nonwoven fabric. Can be applied.

[0010]

EXAMPLES A 6 μm-thick polyethylene terephthalate (hereinafter referred to as PE
A) A film is formed on one side of a film A by a vacuum evaporation method to form a 50-nm-thick aluminum metal layer.
On top of that, 100 parts of a thermosetting urethane resin (hereinafter, all parts by weight), 5 parts of a polyisocyanate, 50 parts of toluene,
A coating liquid obtained by dispersing 50 parts of titanium oxide (ST-01, manufactured by Ishihara Sangyo Co., Ltd .; particle size of X-ray measurement: 7 nm) in a resin liquid of 30 parts of xylene and 20 parts of n-butyl alcohol was mixed and dispersed by a gravure coater. It was applied and dried and cured at 160 ° C. for 20 seconds to form a titanium oxide-containing layer C having a thickness of 1.5 μm. The obtained laminate was cut into 80 pieces with a microslitter to obtain a slit yarn having a width of 0.378 mm. (Layer composition A / B / C) The obtained slit yarn is a yarn whose metallic luster exhibits a metallic luster. A medium consisting of agar is prepared in a petri dish, and the obtained slit yarn and PET film alone are used. The same number of both yarns as the slit yarns (blank yarns) were separately put in separate petri dishes, stored in a desiccator at 40 ° C. and 70 RH% by the window, and observed two weeks later to observe the propagation of various bacteria. did. In the case of the slit yarn of the example, proliferation of bacteria was hardly observed by eyes, but in the case of the blank yarn, propagation of various bacteria was observed throughout the petri dish.

A slit yarn was obtained in the same manner as in Example except that the layer constitution was changed to A / C / B. The propagation of various bacteria was observed in the same manner as in the example, but the propagation of the bacteria was hardly observed in the eyes as in the case of the slit thread, but the propagation of the bacteria in the whole of the petri dish was observed in the case of the blank thread. Was seen. The slit yarn had an appearance that was extremely excellent in metallic luster.

[0012] The laminates of the examples and the examples were bonded together with an adhesive layer interposed therebetween.
C / B / A (-1), C / B / A / A / B / C (-
2), A / C / B / B / C / A (-3), B / C / A
/ A / C / B (-4) was obtained, and these were slit to obtain four types of slit yarns. The propagation of various bacteria was observed for the four types of slit yarns in the same manner as in the examples, but no bacterial propagation was observed for any of the slit yarns.

[0013]

According to the present invention, titanium oxide has functions such as excellent photocatalytic action and the like, and these functions can be held in the slit yarn with high durability. It is possible to provide a slit yarn having both properties and unique functions.

Claims (6)

[Claims] 1. A slit yarn obtained by micro-slitting a laminate having at least one inorganic thin film layer B and a titanium oxide-containing layer C on at least one surface of a base film A. 2. The slit yarn according to claim 1, wherein C is a layer containing titanium oxide fine particles. 3. The slit yarn according to claim 1, wherein the laminate is bonded so that the structure of the laminate is C / B / A / A / B / C. 4. The slit yarn according to claim 1, wherein the laminate is bonded so that the structure of the laminate is A / B / C / C / B / A. 5. The slit yarn according to claim 1, wherein B is a vapor-deposited metal layer. 6. The slit yarn according to claim 1, wherein B is a deposited metal compound layer.