JP2019073828A - Luminous braid composite - Google Patents

Abstract

To provide a braid composite including a core part comprising a molded article containing a phosphorescent pigment and a braid-like sheath part covering the core part in which phosphorescent properties are efficiency provided in the core part and light emission of the core part can be sufficiently visually recognized from the outside.SOLUTION: There is provided a luminous braid composite A comprising: a string-like core part 1 comprising a resin laminate having a phosphorescent pigment containing resin layer 2; and a braid-like sheath part 3 covering the core part 1. The phosphorescent pigment is contained in a laminar portion of the core part 1 in a relatively high concentration to enable sufficient light emission. In addition, the strength of the core part 1 can be also ensured.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a luminescent braided composite in which a core portion is covered with a braid.

Generally, phosphorescent pigments and fluorescent pigments that emit phosphorescence in a low illuminance environment such as dark are well known.
The above-mentioned fluorescent pigment has a fluorescent action that emits light only while absorbing light energy by excitation light (electromagnetic wave) from sunlight or a fluorescent lamp, and the luminous pigment absorbs light energy by excitation light. In addition, there is an effect of continuing to emit phosphorescence even after the excitation light is extinguished.

  Fabrics and labels that emit phosphorescence and fluorescence using such phosphorescent pigments and fluorescent pigments, watches, signs, clothing articles, sports goods, nursing care products, etc. attached with other parts are known, and string-like parts It is also known.

  For example, as cushion rubber used as a part of fishing line of fishing tackle, synthetic rubber silicone rubber or thermoplastic elastomer etc. is used as a core, and a coating layer made of thermoplastic polyurethane elastomer resin is integrally formed along the outer circumference thereof. A cord-like article having a stretchable elasticity is known, which is a composite rope in which the luminous component is mixed in the core part (Patent Document 1).

  In addition, it is a composite comprising a braid and rubber in which the outside of the elastic cord material of the core portion is covered with an expandable braid, and is contained in the rubber of the core portion by the irradiated light such as visible light. There is known a light-emitting stretchable string in which a photoluminescent pigment is excited to emit light (Patent Document 2).

Utility model registration 3136318 gazette Utility model registration 3175120 gazette

  However, the luminous braid composite covered with the above-mentioned conventional braid is formed of rubber having a stretchable elastic core so that the stretchability of the braid can be utilized, so that it is possible to use a luminous pigment or the like in rubber It was necessary to retain the luminescent particles, and it was necessary to homogeneously mix the material rubber and the luminescent particles before the molding and vulcanization process.

  Since the light-emitting particles thus held so as to be uniformly dispersed in the inside of the rubber molded body are controlled and compounded in such an amount that the stretch elasticity of the rubber is not impaired, it is only for the purpose of enhancing the light emission illuminance. Because of the reason, it could not be blended in a large amount, and there was a problem that sufficient visibility at night could not be obtained sufficiently.

  In addition, since light emitting particles held inside the opaque rubber molded body do not sufficiently receive external light, a light emitting function corresponding to the compounding amount is not sufficiently exhibited, and light emitting particles for light emission illuminance There is a problem that the addition efficiency of

  The above-mentioned problems are the same with respect to luminous efficiency, and luminous particles such as phosphorescent pigments disposed so as to be uniformly dispersed in the inside of the opaque rubber visually recognize the light from the outside of the molded product even when it emits light. The difficult point is the problem.

  Then, the subject of this invention solves the above-mentioned problem, and about the braided complex which coat | covers the core part containing a luminous pigment, the luminous pigment added to the core part absorbs light energy efficiently, In addition, the present invention is to provide a braided composite which is improved so that light emission can be viewed efficiently with the addition of the phosphorescent pigment.

  In order to solve the above-described problems, in the present invention, a cord-shaped core portion made of a resin laminate in which one or more luminous pigment-containing resin layers are integrally provided, and a braided sheath portion covering the core portion It was set as the luminous braid complex which consists of.

  In the light-emitting braided composite according to the present invention configured as described above, one or more luminous pigment-containing resin layers are disposed on or in the surface or inside of the core made of a string-like resin laminate, and the luminous pigment is contained Even if the amount is considerably increased, the mechanical strength of the entire resin laminate can be maintained by the portions other than the luminous pigment-containing resin layer. Therefore, a luminous pigment can be contained in a relatively high concentration in the limited layer portion of the core to emit light sufficiently, and the strength of the core can be secured depending on the use of the cord.

  A part (planar or end face) of the above-mentioned phosphorescent pigment-containing resin layer is exposed on the surface or side of the core made of a resin laminate, so that it can be received from the outside through the braided sheath. In addition, the phosphorescence is easily emitted to the outside and easily viewed from the outside.

  In addition, using a phosphorescent pigment coated with a water-resistant film as a phosphorescent pigment contained in a resin laminate exposed on the surface or the side of the core portion causes hydrolysis even when moisture such as rain water comes in contact with the core portion Are difficult to cause, and deterioration of the function of the phosphorescent pigment due to water absorption or absorption can be suppressed.

  In order to further enhance the visibility of the phosphorescence emitted by the braided composite, it is preferable to be a string-like resin laminate in which a luminous pigment-containing resin layer and a light transmitting resin layer not containing luminous pigment are alternately laminated. .

  In the case of the laminated structure as described above, at least a plurality of end faces (or cross sections) in the thickness direction are exposed at the end faces of the resin laminate, so the exposed phosphorescent pigment-containing resin layer directly receives light from the outside and emits light at the end faces. it can.

  In addition, the luminous efficiency of the phosphorescent pigment is determined by the fact that the resin layer not containing the luminous pigment in the laminated state as described above is a resin layer of excitation light transmitting property of the luminous pigment and is a resin layer further containing a fluorescent pigment. Preferred to boost. The reason is that the excitation light emitted from the outside receives the luminous pigment in the luminous pigment-containing resin layer via the fluorescent pigment-containing resin layer and at the same time the fluorescence emitted from the fluorescent pigment-containing resin layer.

  Furthermore, although the braided complex provided with the resin layer containing the fluorescent pigment emits light by the fluorescent pigment during light reception from the outside, even if the light reception is interrupted thereafter and the fluorescence is not emitted, the light accumulation is instead Since the pigment emits light, fluorescence and phosphorescence are alternately emitted, and a high visual effect is maintained for a long time continuously.

  Since the present invention holds the phosphorescent pigment on the limited surface or the inner layer portion of the core of the braided composite, and can be disposed in the part where the luminous pigment is easily received from the outside and visible, it is added to the core The above-described phosphorescent pigment has an advantage of being an improved braided composite so that light energy can be efficiently absorbed and light emission can be viewed efficiently with the addition of the phosphorescent pigment.

Front view of a braided composite showing a first embodiment II-II sectional view of FIG. 1 The manufacturing process of the resin laminated body used for 1st Embodiment is shown, and explanatory drawing of a cast molding process The manufacturing process of the resin laminated body used for 2nd Embodiment is shown, and explanatory drawing of a cast molding process The 3rd Embodiment of this invention is shown and the front view of a braided composite. VI-VI line sectional view of FIG. 5 The perspective view of the athletic shoe which shows the use condition of 3rd Embodiment The perspective view of the rucksack which shows the use condition of 3rd Embodiment

Embodiments of the present invention will be described below based on the attached drawings.
The light-emitting braided composite A according to the first embodiment shown in FIGS. 1 and 2 has a wide and flat core portion 1 formed of a long, string-like resin laminate having a substantially rectangular (in other words, wedge-shaped) cross section. A layer of luminous pigment-containing resin layer 2 is provided on the surface, and a light transmitting braid-like sheath 3 is provided to cover the entire periphery of the core 1.

  The cord-like resin laminate constituting the core part 1 is formed by casting a luminous pigment-containing resin layer 2 made of a molding material to which only a required amount of a luminous pigment in particulate form is added, and then a composite cast molding method A melt-moldable synthetic resin material such as a thermoplastic resin not containing a phosphorescent pigment is piled up, cast-molded, and the light transmitting resin layer 4 and the above-mentioned luminous pigment-containing resin layer 2 are integrally laminated. .

  The castable and moldable synthetic resin used for the luminous pigment-containing resin layer 2 or the light transmitting resin layer 4 is made of a soft synthetic resin having a bending deformability according to the use of the string, for example, a polyolefin resin such as polyethylene resin The kind of curing agent to be added, such as a resin which is adjusted to a relatively low molecular weight and is softened by adjusting the amount of plasticizer such as a soft resin, polyvinyl chloride resin, etc. It is possible to adopt a reactive resin whose hardness can be adjusted by selecting an amount, and a resin which is soft according to the kind of side chain to the main chain of the polymer, the degree of polymerization, and the degree of branching.

  The above-mentioned synthetic resin gives the cord a required flexibility, and such flexibility may be accompanied by elasticity, but it is not necessary to use an elastic rubber in place of the synthetic resin. When an elastic rubber is employed, a step of homogeneous mixing is required before curing (crosslinking) treatment, so that the blending amount of the phosphorescent pigment is limited, and a desired light emission amount can not be obtained.

  The cord-like resin laminate constituting the core part 1 may have bending deformability to such an extent that it can be bent like a cord, folded back and tied, and rubber-like elasticity is not necessarily required. The tensile elongation required for such bending deformation, for example, 50% or less can sufficiently withstand use.

  A phosphorescent pigment is a solid powder of an inorganic substance, which can be uniformly mixed and dispersed with the above-mentioned resin as a base material (binder), emits phosphorescence as strong as possible, and has a light emitting time of 60 to 90 minutes or more It is preferable to use a phosphorescent pigment having a particle diameter of 30 to 300 μm, preferably 150 to 300 μm, and more preferably 250 to 300 μm.

  Examples of the type of phosphorescent pigment include well-known calcium sulfide and zinc sulfide that exhibit purple blue, blue green and yellow green colors, etc., oxide phosphors obtained by activating strontium aluminate with europium etc, calcium sulfide It is preferable to use a sulfide phosphor having barium added thereto because of its excellent afterglow luminance and afterglow time.

  Strontium aluminate (made by Nemoto Special Chemical Co., Ltd .: "N night light" NEW-G300M, NEW-BG300M, NEW-V300M etc.) is mentioned as a strontium aluminate fluorescent substance.

  Since these phosphorescent pigments are solid, they can be appropriately pulverized to the above-mentioned predetermined particle size and used. The phosphorescent pigment is preferably a phosphorescent pigment coated with a water resistant film. As described in International Publication WO 2010/090312 A1, such a luminous pigment excellent in water resistance is formed into a granular laminate by laminating the luminous pigment layer and the mixture layer of glass fine particles and a resin adhesive by screen printing. Are formed and then fired to obtain a phosphorescent pigment having a glass coating.

The luminous pigment is preferably blended as much as possible with respect to the above-mentioned soft synthetic resin, and in order to maintain mechanical properties such as flexibility and tensile strength required for the luminous pigment-containing resin layer, 100 mass of the synthetic resin It is possible to mix | blend 10-75 mass parts of luminous pigments with a particle size of 300-30 micrometers, for example with respect to part.
In this case, the smaller the particle size of the phosphorescent pigment is, the more the blending of a large amount does not impair the mechanical properties of the resin as the base material, but a more preferable blending ratio is 30 to 70 parts by mass. For example, when a luminous pigment having a particle diameter of 150 μm is used, 100 parts by mass of the luminous pigment is added to 100 parts by mass of the synthetic resin, and the luminous pigment-containing resin has sufficiently excellent light emission intensity and mechanical properties. Is obtained.

The braided composite of the first embodiment obtained in this manner has a high degree of satisfaction of class II (10 mcd / m ² or more) in the test of phosphorescence luminance (JIS Z 9097 D2.1.2.2 phosphorescence luminance of a phosphorescent material). You can get something functional.

  As described above, even if the content of the phosphorescent pigment is considerably increased, the mechanical strength of the entire resin laminate can be enhanced by the portion other than the phosphorescent pigment-containing resin layer 2. Therefore, the luminous pigment can be contained in a relatively high concentration in the limited layer portion of the core portion 1 to emit light sufficiently, and furthermore, the strength of the core portion 1 can be secured depending on the application.

  The luminous pigment-containing resin layer 2 described above is partially (planar or end face) exposed on the surface or side of the core 1 made of a resin laminate, so that light is efficiently received from the outside through the sheath 3 in the form of a braid. The phosphorescence is easily visible from the outside.

  As shown in FIG. 3, in order to integrally provide the single layer of the luminous pigment-containing resin layer 2 on the wide flat surface (the lower surface in FIG. 3) of the surface of the core 1 made of a string-like resin laminate. , Cast molded as follows.

  First, a resin material containing a phosphorescent pigment is injected into a mold 5 for resin casting molding in a flowable state by a predetermined amount, and is cured by necessary heating or cooling to obtain a semi-solid phosphorescent pigment-containing resin Form layer 2

  Next, the light transmitting resin material 6 not containing the luminous pigment is poured thereon, and the single luminous pigment resin layer 2 is integrated on the surface (bottom side) in a laminated state to form the core portion 1 of the braided composite. obtain.

  The resin laminate used for the braided composite of the second embodiment shown in FIG. 4 is provided with two layers of the luminous pigment-containing resin layer 2 of a predetermined thickness, and the above-described predetermined amount of resin casting operation is repeated twice. A resin laminate with a multilayer structure is manufactured with the required layer thickness. Furthermore, the resin casting operation can be repeated three or more times.

  In the second embodiment, only the resin laminate is substituted in the first embodiment, and the other configurations are the same as those in the first embodiment, and the resin laminate has the top surface in the laminated state a fluorescent pigment. And a resin layer 7 containing The resin laminate of the second embodiment emits a fluorescent pigment even when light is irradiated only from the resin layer 7 side, excites the phosphorescent pigment of the phosphorescent pigment-containing resin layer 2, and further transmits the light transmitting resin of the lower layer. The phosphorescent pigment of the phosphorescent pigment-containing resin layer 2 can be excited via the layer 4.

  In the end face (or cross section) of the resin laminate demolded from the mold 5 in the thickness direction, the plurality of phosphorescent pigment-containing resin layers 2 are exposed, and the exposed end faces of the phosphorescent pigment-containing resin layer 2 are from the outside It can receive light directly and emit light directly to the outside.

  Further, since the uppermost resin layer 7 is the resin layer 7 containing a fluorescent pigment, the fluorescence generated by the light irradiated from the outside excites the luminous pigment in the luminous pigment-containing resin layer 2 and further the light is emitted. Light can also be allowed to reach the phosphorescent pigment-containing resin layer 2 in the lower layer through the transmissive resin layer 4.

  By the way, although the sheath part 3 of the light emitting braided composite is formed like a braid, it is usually made of a braid braided only with warp (titton), and the material and form of the braid to be adopted, kind of braided shape etc. Is not particularly limited. For example, it may be either a square flat string or a round string in cross section.

  In addition, it is also preferable to use a braid loosely woven in a lattice shape so that there is a space between the yarn and the yarn so as to allow light transmission, and furthermore, it is woven of a transparent resin and the yarn itself has a light transmitting braid. It is more preferable to use.

  In order to insert the core portion 1 into the braid, it is preferable to insert the core portion 1 made of a cord-like resin laminate into the center of the ring to be assembled when weaving the braid in an annular manner. That is, the core portion 1 can be covered by weaving or knitting so as to wrap the core portion 1 in a bag shape.

  With relatively loose braids, it is also possible to later insert the core into the finished relatively short braid. The braid which has such a core-sheath structure can be manufactured using the various weaving machines, string making machines, etc. which are described also to Paragraph 0030 etc. of patent document 2, etc.

  The braid-like sheath portion 3 covering the core portion 1 is light-transmissive to transmit light for exciting the above-mentioned phosphorescent pigment, and densely knitted like a braided composite showing the first embodiment, for example In the case of a braided cord, it is preferable that the luminous pigment be excitable also by the sheath part 3 having light transparency.

  As described above, the string-like resin laminate includes the luminous pigment-containing resin layer and the luminous pigment so as to utilize the light transmission of the weave of the braid or the braid material and to facilitate visual recognition from the outside at the time of light emission. It is preferable to expose the end face or the cross section in which resin layers that do not contain are alternately laminated integrally.

  Moreover, braid composite B of 3rd Embodiment shown in FIG. 5 makes the braid which comprises the sheath part 8 have translucency by the space | interval of thread | yarn 8a.

  In order to maintain the spacing of the yarns 8a, it is preferable that a plurality of small diameter second yarns 8b be provided around the wide yarns 8a for reinforcement. Furthermore, if a metallized film (not shown) is formed on the wide surface of the yarn 8a and a braid of a lam woven fabric using a yarn having a metallic gloss film is adopted, the visibility is enhanced even during the day.

  As shown in FIG. 6, in the laminated state of the cord-like core portion 9 made of the resin laminate of the third embodiment, the luminous pigment-containing resin layer 10 is disposed on the front and back, and transparent light transmission containing no luminous pigment. Sandwich structure in which the conductive resin layer 11 is disposed at the center.

  The use state and use of the luminescent braided composites according to the first to third embodiments are not particularly limited, but may be, for example, a shoelace 12 (see FIG. 7), and a closed lace 13 of a rucksack. Or, it can be used as a decorative string 14 etc., and it is confirmed that the visibility of luminescence of the core part is very stable and excellent over a long time when used in a low illuminance environment at night .

  In addition, the embodiment of the present invention is versatile other than the above-mentioned use state, for example, clothing and accessories such as outer jackets, pants and gloves, accessories thereof accessories, bags, bags and other daily necessities ), Pet products such as leads and collars, vehicles such as bicycles and their accessories, outdoor sports equipment, infant supplies such as toys, and auxiliary / care products.

Reference Signs List 1, 9 core portion 2, 10 luminous pigment-containing resin layer 3, 8 sheath portion 4, 11 light transmitting resin layer 5 mold 6 resin material 7 resin layer 8 a, 8 b thread 12 shoelace 13 closed cord 14 decorative cord

Claims (5)

  A light-emitting braided composite comprising a cord-like core comprising a resin laminate integrally provided with one or more luminous pigment-containing resin layers and a braid-like sheath covering the core.   The luminous braided composite according to claim 1, wherein the luminous pigment is a luminous pigment coated with a water resistant film.   The light-emitting braided composite according to claim 1 or 2, wherein the string-like resin laminate is a string-like resin laminate in which the luminous pigment-containing resin layer and the luminous pigment-free resin layer are alternately laminated. body.   The light-emitting braided composite according to claim 3, wherein the resin layer not containing the phosphorescent pigment is a resin layer which is transmissive to excitation light of the phosphorescent pigment.   The light-emitting braided composite according to claim 3 or 4, wherein the resin layer containing no phosphorescent pigment is a resin layer containing a fluorescent pigment.

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