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Matrix stamping equipment, method for forming coating on it and method for stamping washing block

A technology of detergent block and equipment, which is applied in the direction of coating, press, forming soap, etc., and can solve the problems of short service life and so on

Inactive Publication Date: 2002-01-02
UNILEVER NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The difficulty encountered with this type of elastomeric coating is that it has a very short life span of a few days or slightly longer

Method used

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  • Matrix stamping equipment, method for forming coating on it and method for stamping washing block
  • Matrix stamping equipment, method for forming coating on it and method for stamping washing block
  • Matrix stamping equipment, method for forming coating on it and method for stamping washing block

Examples

Experimental program
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Embodiment Construction

[0083] A series of mold halves were fabricated from carbon steel and etched by EDM to a surface roughness (Ra), degreased with acetone, primed and then coated with a series of elastomeric materials.

[0084] A series of mold halves made of brass can also be used in an embodiment. Likewise, degrease with acetone, apply a primer, and then apply the elastomeric material.

[0085] The elastomer coating is made of polyurethane. The polyurethane is prepared as follows:

[0086] a. Polyether based liquid isocyanate terminated prepolymer with the product name Andur 80-5AP.

[0087] supplier:

[0088] Anderson Devlopment Co.

[0089] 1415 E Michigan Street

[0090] Adrian, MI 49221-3499;

[0091] b. The curing agent used is the product Voronal 234-630 curative-Triol,

[0092] supplier:

[0093] Dow Chemical Co.

[0094] 2040 Dow Center

[0095] Element

[0096] Element

[0097] Element

[0098] As shown in FIG. 4 , the mold includes a metal edge...

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Abstract

A device for stamping a detergent bar, i.e. a bar comprising soap, a synthetic detergent active or a mixture thereof, includes a die. The die has at least one bar stamping surface provided with at least one elastomeric coating and includes an edge for delaying tearing of the elastomeric coating. Good release of the detergent bars from the die is possible without chilling of the dies. Use of the edge increases the useful life of the coating.

Description

field of invention [0001] The present invention relates to an apparatus, method and device for forming articles by stamping plastic materials with a die. In particular, the present invention relates to a method of refilling detergent bars. [0002] As used herein, "detergent bar" means a tablet, block or bar containing a dose of surfactant, including soap, synthetic active detergent, or mixtures thereof, in an amount of at least 1% of the bar 20% by weight. Background of the invention [0003] In the process of making detergent bars, a pre-formed composition including all of the bar ingredients is usually extruded through a nozzle to form a continuous "rod" which is cut into small segments of predetermined lengths, commonly referred to as "sticks". Billet". These blanks are then fed to a stamping press or embossed on one or more surfaces of the blank using, for example, a die having the same dimensions as the surface of the block. Force is applied by a hammer or roller d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/56B30B15/02C08L21/00C11D13/18
CPCC11D13/18Y10S425/044B30B15/022B29C33/56B30B15/02
Inventor P·M·布泽奥D·J·海恩兹B·埃德蒙森E·R·斯托赖
Owner UNILEVER NV