Abstract:
There is provided a heat generating body which by forming a temporary adhering part upon temporary adhesion between a substrate and a heat generating composition molded body and a covering material with an adhesive layer and subsequent heat sealing, realizes higher line speed, thereby largely improving the productivity, does not generate position deviation of the heat generating composition molded body in welding the substrate and the covering material, is able to be heat sealed and is free from seal failure.A heat generating body as formed by laminating a heat generating composition molded body resulting from molding of a heat generating composition containing, as essential components, an exothermic substance, a carbon component, a reaction accelerator and water and having a water mobility value of from 0.01 to 20 on a substrate, covering by a covering material and heat sealing the periphery of the heat generating composition molded body, is characterized in that the substrate and the covering material are temporarily adhered with a sticky layer, the temporarily adhered portion is heat sealed with a heat seal layer which the substrate and/or the covering material has, the sticky layer component and the heat seal layer component are co-present in the heat seal part, and the heat seal part has a seal strength at 60° C. of 0.8 kg/25 mm or more.
Abstract:
To provide a heat generating body which nevertheless an excellent warming effect (for example, an effect for relaxation of a pain by a thermal stimulus) can be obtained, hardly provides a user with an unwell feeling due to a high temperature, is fit to curved surface parts such as the abdominal region and the waist and is able to comfortably warm a desired site with a good feeling for use over a long period of time.A heat generating body wherein three or more plural sectional exothermic parts are provided at intervals via a sectioned part which is a heat seal part, which is characterized in that the sectional exothermic parts have a heat generating composition capable of causing heat generation upon contact with oxygen in air and are at least constituted of three kinds of a low temperature sectional exothermic part, a middle temperature sectional exothermic part and a high temperature sectional exothermic part; that a maximum temperature of the high temperature sectional exothermic part is higher than a maximum temperature of the low temperature sectional exothermic part; that a maximum temperature of the middle temperature sectional exothermic part is laid between a maximum temperature of the high temperature sectional exothermic part and a maximum temperature of the low temperature sectional exothermic part; and that the middle temperature sectional exothermic part is constituted of plural sectional exothermic parts having a different maximum temperature.
Abstract:
To provide a heat generating body which is able to relax symptoms such as stiff shoulder, low-back pain, muscular fatigue, menstrual pain, a symptom of poor circulation and in particular, can be suitably used for relaxation of a symptom of menstrual pain. A heat generating body wherein a heat generating composition molded body resulting from molding a moldable heat generating composition containing surplus water as a connecting substance is interposed between packaging materials and the periphery of the heat generating composition molded body is heat sealed, which is characterized in that the packaging materials are each constituted of a substrate and a covering material; that the substrate is substantially planar and does not have an accommodating pocket; that the packaging materials each has a bending resistance of not more than 100 mm; that the packaging materials are each a non-elastic body at least at a temperature between 25° C. and 60° C., has a breaking strength of 500 g/mm2 or more at 25° C. and has a breaking elongation of 30% or more at 90° C.; that the moldable heat generating composition contains, as essential components, an iron powder, a carbon component, a reaction accelerator and water, has a water content of from 1 to 60% by weight, does not contain a flocculent aid, a flocculant, an agglomeration aid, a dry binder, a dry binding agent, a dry binding material, a sticky raw material, a thickener and an excipient, contains the surplus water so as to have a water mobility value of from 0.01 to 20, has moldability due to the surplus water, with the water in the moldable heat generating composition not functioning as a barrier layer, and is capable of causing an exothermic reaction upon contact with air; that plural sectional exothermic parts as divided by a sectioned part which is formed by heat sealing are provided; that the heat generating body contains a region having a ratio of bending resistance in the orthogonal directions of 2 or more on the surface thereof orthogonal to the thickness direction of the heat generating body; that at least a part of the heat generating body has permeability to air; and that the heat generating body has a fixing measure on at least a part of the exposed surface thereof.
Abstract:
A circuit board for mounting one or more optical devices such as light receiving LSI chips and light emitting LSI chips. The circuit board has a flexible transparent substrate, a window portion which is formed as a slit-like transparent region of the transparent substrate, a plurality of electrodes for bonding the optical devices thereon provided on one surface of the substrate, a plurality of aggregated electrodes provided on the other surface on a region corresponding to the electrodes in a manner extending respectively in the longitudinal direction of the window portion and electrical connection portions penetrating the substrate. Each of the aggregated electrodes is electrically connected with two or more of the electrodes through the electrical connection portion. The circuit board will be used in, for example, an optical reader, an optical printer or the like in such a manner that the light which is coming in and/or going out of the optical device is transmitted through the window portion.
Abstract:
To provide a microheater which gives a desired temperature and starts an exothermic reaction upon immediate contact with air and in which plural microheaters can be chained or incorporated in a packaging material.A microheater having a heat generating composition molded body made of a moldable heat generating composition containing surplus water as a connecting substance accommodated in an air-permeable accommodating bag, which is characterized in that the accommodating bag is made of a heat seal layer-containing substrate and a covering material and has an exothermic part as formed by laminating a heat generating composition molded body as molded on the substrate which is substantially planar and does not have a pocket, an accommodating division and an accommodating section, covering by the covering material and heat sealing the periphery of the heat generating composition molded body; that the moldable heat generating composition contains, as essential components, an iron powder, a carbon component, a reaction accelerator and water, has a content of water in the moldable heat generating composition of from 1 to 60%, does not contain a flocculant aid, a flocculant, an agglomeration aid, a dry binder, a dry binding agent, a dry binding material, a sticky raw material, a thickener and an excipient, contains surplus water so as to have a water mobility value of from 0.01 to 20, with the water in the heat generating composition not functioning as a barrier layer, and is capable of causing an exothermic reaction upon contact with air; that a volume of the heat generating composition molded body is from 0.1 to 30 cm3, and a ratio of a capacity of the exothermic part to the volume of the heat generating composition molded body is from 0.6 to 1.0; and that a maximum height of the exothermic part is from 0.1 to 10 mm.
Abstract:
To provide a heat generating body in which a space can be surely secured in the surroundings of a heat generating composition and heat insulation of the heat generating composition, adjustment of the quantity of air to be taken in and prevention of dispersion of water can be achieved.A heat generating body having an exothermic part having a heat generating composition molded body which is a molded body of a heat generating composition capable of causing heat generation upon contact with air in a convex of an accommodating bag having plural irregularities by laminating the heat generating composition molded body on a substrate, covering a covering material thereon and then heat sealing the periphery of the heat generating composition molded body, characterized in that the heat generating composition contains, as essential components, an exothermic substance, a carbon component, a reaction accelerator and water; that the heat generating body is composed of a sectional exothermic part and a sectioned part, the sectional exothermic part accommodates the heat generating composition molded body therein, the sectioned part is a seal part, and the sectional exothermic part is disposed via the sectioned part; that at least a part of the sectional exothermic part has an air-permeable surface; that the air-permeable surface which comes into contact with the heat generating composition molded body is constituted of a non-water absorptive raw material; that the sectional exothermic part and the sectioned part have a difference of altitude, and the part having a difference of altitude is covered by an air permeability adjusting material via a bonding layer and forms a partitioned spacial part; and that the spacial part is provided with a primary air intake.
Abstract:
To provide a stretchable heat generating body which follows and closely adheres to a joint part such as elbows and knees, a curved part or stretching part of the body such as shoulders and arms, and a bending and stretching part, is good in feeling for use because it is free from a tense feeling or an uncomfortable feeling during the use and does not cause peeling during the use and from which an excellent thermal effect or a therapeutic effect of an affected part can be obtained because of good adhesion to a human body.A stretchable heat generating body in which an exothermic part which is able to be freely cut off by a perforation or a cut line at the time of extension is installed on a support having a non-extensible portion and an extensible portion integrally formed in a sheet-like form, which is characterized in that the exothermic part is constituted of a sectional exothermic part having a heat generating composition and a sectioned part which is a heat seal part; that the sectional exothermic part is installed in a non-extensible part of the support; that the sectioned part is provided with the perforation or cut line; that the heat generating composition contains, as essential components, an exothermic substance, a carbon component, a reaction accelerator and water, has a water mobility value of from 0.01 to 20, has moldability due to surplus water which is a connecting substance, and is capable of causing heat generation upon contact with air; that a minimum bending resistance in one direction on the surface orthogonal to the thickness direction of the heat generating body is not more than 60 mm; and that a fixing measure is provided on the support.