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Method for preparing elastic covering material and its intermediate product

A technology of elastomeric materials and coverings, applied in the field of flooring manufacturing, can solve the problems of different colors in continuous parts, and it is difficult to ensure that coverings maintain constant color changes, changes, etc.

Inactive Publication Date: 2005-08-24
环球公开有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The solutions described in the last two documents mentioned above are based on essentially continuous methods which have the disadvantage that it is very difficult to ensure that the overall color of the covering remains constant during the manufacturing process without color variations
When successive parts of the same covering have to be laid next to each other, the phenomenon of color variation is highly negative, with the risk of successive parts having very different colors

Method used

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Examples

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Embodiment Construction

[0012] The solution according to the invention is designed in such a way that the granular material obtained from the extrusion, dragging and shearing operations is firstly subjected to a mixing operation and then fed into a calender to form strips or strips of material. In a preferred manner, said mixing operation is carried out on a batch of granular material of sufficient magnitude, for example, the batch of granular material used to make the entire batch of cover tape, in order to ensure that the result of the mixing operation is such that the mixed The granular material, which is characterized by a complete homogeneity of colour, constitutes the intermediate product of the process according to the invention and is fed to the calender. This guarantees that the color properties of the final product remain absolutely constant without any undesired color variations or variations.

[0013] Precisely for the reasons mentioned above, the first step of the method according to the...

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PUM

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Abstract

A method for preparing the elastic covering material from the sulfurizable elastic material includes such steps as filling the belts of the sulfurizable elastic materials with different colors in extruder, extruding out via pull die plate, cutting to become particles, stirring, filling in the gap between two pressing rollers of calendering machine, calendering to obtain band, and sulfurizing.

Description

technical field [0001] The invention relates to the manufacture of coverings, such as floor coverings, made of elastomeric materials such as rubber. Background technique [0002] The present invention belongs to the following line of solutions, the object of which is to provide coverings of the stated type preventing them from exhibiting directional properties which are particularly relevant to the aesthetic appearance of the covering. [0003] For example, the applicant's patent No. EP-A-0 968 804 describes a method of manufacturing a covering comprising at least one layer of adhesive-type rubber-based material. The method comprises the steps of: forming a substantially continuous bed of the aforementioned disintegrated material; and subjecting the material of said bed to a compression process to form a sheet due to cohesive forces of the material. Due to the presence of tensile force exerted on the fragmented material, the aforementioned compression operation is carried o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29C43/30
Inventor 费尔南多·斯特罗皮亚纳
Owner 环球公开有限公司