Solid adhesive with function of preventing adhesion each other and making, packing method thereof

A manufacturing method and technology of solid objects, applied in the direction of adhesives, etc., can solve problems such as time-consuming, performance degradation of hot-melt adhesives, difficulty in peeling off containers and hot-melt adhesives, etc.

Inactive Publication Date: 2006-05-31
MATSUMURA OIL RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods also have such problems that it takes time to dissolve the polyene film uniformly into a molten hot-melt adhesive composition due to the high softening point of polyene, and that heat may be caused due to the nature of polyene. Reduced performance of melt adhesives and reduced thermal stability in hot melt containers
As such a method, for example, a method of injecting a hot-melt adhesive for molding by spraying wax into containers of various shapes such as cylinders or cuboids has been considered. However, when the amount of wax applied is small, the container Difficult to peel off with hot melt adhesive
In addition, there is also a disadvantage that when a large amount of wax is used, the peeling from the container becomes easy, but when using a hot melt adhesive, since a large amount of wax is mixed, the performance of the adhesive will be affected.
However, in this method, the hot-melt adhesive block that can be applied is small, and the extrusion molding machine becomes the key to manufacture a larger hot-melt adhesive block. method, less practical

Method used

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  • Solid adhesive with function of preventing adhesion each other and making, packing method thereof
  • Solid adhesive with function of preventing adhesion each other and making, packing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Xiang Ru figure 1 The shown internal dimensions are 150mm×200mm, and the adhesive block molding container with a height of 100mm is pasted with a silicon sheet on the side and inner bottom of the container, and 2.5kg of fluid hot-melt adhesive is injected at 150°C. At this time, the bottom plate can be opened and closed through the hinge. After the hot-melt adhesive is completely cured by letting it cool, when a round rod with a diameter of 40mm is directly applied to the bottom with a load of 40kgf when the bottom plate is opened, the hot-melt adhesive will easily Peel off drops from container.

Embodiment 2

[0032] Sprinkle the synthetic paraffin wax that particle diameter is 5~7 microns to the hot-melt adhesive made in embodiment 1, wipe off excess part with cloth, obtain the adhesion uniformity to surface simultaneously, make to prevent mutual Surface-adhesive hot-melt adhesive solids. The amount of synthetic paraffin adhering to the solid matter was calculated by measuring the weight, and it was 0.05% by weight relative to the whole solid matter.

Embodiment 3

[0034] The properties of the hot-melt adhesives obtained in Examples 1 and 2 were tested respectively. The viscosity was in accordance with Japanese JIS K6863, the 180-degree peel was in accordance with JIS K6862 B method, and the softening point was in accordance with JIS Z0237. The results are shown in Table 1.

[0035] Example 1

[0036] As a result, the viscosity, softening point, and 180-degree peel strength of the hot-melt adhesive coated with synthetic paraffin compared with the uncoated hot-melt adhesive showed roughly the same value, indicating that 0.05% by weight of wax does not affect any properties.

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Abstract

The present invention is proposed to solve the problem of the conventional packaging method for preventing hot-melt adhesives from sticking to each other, and the purpose is to reduce the proportion of foreign materials such as films mixed into the hot-melt adhesive as much as possible and to prevent hot-melt adhesives from sticking to each other. A solid hot-melt adhesive that sticks to each other and has excellent workability and a manufacturing method thereof, and a method of packaging and transporting a solid hot-melt adhesive that reduces waste of packaging materials and the like. The method for producing a hot-melt adhesive solid, the hot-melt adhesive solid, and its packaging and transportation methods according to the present invention are characterized in that: a releasable inner surface is provided, and the bottom plate can be opened and closed or can be opened and closed. In a container of a loading and unloading structure, a hot-melt adhesive heated to a temperature above the flow temperature is inserted, and the hot-melt adhesive is released by opening or removing the bottom plate of the container at least during the cooling process before the surface of the hot-melt adhesive is solidified. The adhesive solids are removed from the container.

Description

technical field [0001] The present invention relates to a method of manufacturing a hot-melt adhesive solid having mutual adhesion preventing properties, and the manufactured hot-melt adhesive solid and a method of packaging and transporting the hot-melt adhesive. Background technique [0002] Generally, a hot melt adhesive applied in a fluid state by heating is solid at room temperature. Generally, hot melt adhesives are supplied in the form of lumps and are heated and melted during use. Due to these material characteristics, various problems arise when handling hot melt adhesives or packaging. The solid hot melt adhesive block not only sticks or sticks to the hands or mechanical handling devices, but also causes these hands or devices to stick or adhere to each other, or pick up dirt or contaminants. In addition, in order to avoid sticking to each other and improve workability, hot-melt adhesives with adhesive surfaces are injected into paper containers, plastic container...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J9/00B29C39/02C09J201/00
Inventor 小椋和広吉川予志夫
Owner MATSUMURA OIL RES
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