Abstract:
A crossed polymer laminate produced by forming a layer of polymer fluid composed of at least two components, combining the fluid flow with an other polymer fluid flow in such a manner that the directions of the two fluid flow layers cross with each other, then forming a plurality of the composite flows. An apparatus for theprocess is also disclosed. This process makes it possible to form many islands in the crossed laminate and raise the island content extremely easily with economical advantages.
Abstract:
The present invention relates to a polyester product excellent in resilient elasticity, shape retainability and shape stability, and a process for producing the same. The invention provides a polyester product with high resilient elasticity, shape retainability, and shape stability, which is produced by heat-treating a product comprising polyester fibers or a film prepared by taking up a molten polyester at a take-up speed of 2000 m/min to 4000 m/min, in wet heat and/or dry heat at not lower than 120 DEG C with the product maintained in a loose or constrained condition without being drawn. The product is very suitable, for example, as a collar interlining cloth of a shirt, a base fabric of a shirt, or a fabric of a lady's dress, etc.
Abstract:
A process for producing non-woven fabric which comprises collecting fibers carried by a high-speed fluid as web, and introducing it into a cloth wrapper to superpose. In this process, the web preferably has such a cross-section distribution that the weight per unit area in both edges is gradually reduced toward the edge. This process enables filament web or filament non-woven fabric with a broad width and remarkably reduced unevenness to be produced by non-woven fabric producing equipment wherein one- or two-spindle spinning machines are directly connected to each other. Therefore, a broad non-woven fabric can be economically produced in a small amount by the spinning-connected process. In addition, the width or weight per unit area of the product can be changed without changing spinning conditions, so that this process is also suited for producing a variety of products with less loss in changing the kind of product.
Abstract:
A recording body on which an identification mark is so recorded to be optically readable and its manufacturing method. The object of this invention is to provide a recording body having an optically readable mark which can be used permanently to some extent because it has a good durability against washing and repeated mechanical forces applied to it too, and can be read accurately with almost no error because it has a good readability by an optical reader that is regarded as the life of the identitication mark. The recording body of this invention is characterized in that the body is made of extra fine fibers of 1-0.00001 denier as a main material, and is a cloth having an identification mark recorded opto-readably. The method of manufacturing the recording body is characterized in that the optically read mark is printed on the surface of the fiber cloth made of extra fine fibers of 1-0.00001 denier as a main material.
Abstract:
A carrier for culturing cells which comprises super-fine fibers of up to 1.0 denier. This carrier can maintain the functions of differentiation and multiplication of cells for a long period of time and enables a large-scale culture.