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ISO9001-2000 application
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Riken Chemical & Co.
DEVELOPMENT INFORMATION

Developing and Usage for porous resin and rubber productsF @Spreading tools for medicine or ink, water sprinkler devices, perfume pens, make-up brushes, painting materials brushes, brush pens, etc. @Products in the fore-mentioned usages which employ capillary action are numerous.

We select thermoplastic resin and elastomer according to purpose (solvent etc.), and adjust hardness according to customer request.

@
Resin and elastomer are chosen by consulting the list of
@ characteristics for optimum performance.
Pore diameter is selected according to the viscosity and size of the particles of the liquid to be employed and the desired output or dispersion of that liquid.
@
Is enough liquid output?@Can the liquid be uniformly spread over
@a surface? Should the liquid be absorbed as much as possible?
@As a result, the capillary action is chosen and a straightening pore
@diameter and amount are selected.
The capillary action changes according to pore diameter.
@(Generally)<pore diameter>
@10ƒΚ or less FThe capillary power acts strongly, becoming 10ƒΚ or less.
@10ƒΚ`100ƒΚFThe capillary power acts loosely by increasing within the
@@@@@@@@ range of 10ƒΚ-100ƒΚ.
@100ƒΚ or moreFThe capillary power does not act.
An action which conflicts by combining the above-mentioned pore
@ diameters can be achieved at the same time.
Molding method is selected.
@
Depending on the desired pores, injection or extrusion molding is
@selected for mass production.
A prototype is made for trial purposes, an experimental metal mold made, and, for trial purposes, a molding for the compound is created.
A production decision is made after examining the results of long-term wear experiments, etc. and the product is completed.
Outline of porous quality: Excel Appending




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