Optically readable mark recorded cloth and a production process

Details Optically readable mark recorded cloth and a production process Optically readable mark recorded cloth and a production process

1997-11-24

1998-12-29

Weisberger, Richard

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Woven fabric

Woven fabric is characterized by a particular or...

442 2, 442 60, 442189, 442304, 442325, 442340, 428220, 235462, 235494, D0 1100, B32B 300

Patent

active

058541489

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

The present invention relates to fiber cloth such as woven fabric, knitted fabric and nonwoven fabric, respectively with an identification mark optically readably recorded.
The information to be recorded as an identification mark in the present invention includes various data such as a maker name, commodity item code, processing method, washing method, handling method, size, color and date of manufacture respectively stated by the maker concerned, or such data as dealer code, price and other purchase data respectively stated by the dealer concerned, or identification data concerning customers, etc. Furthermore, other information useful for respective business areas can also be stated.
Moreover, the mark may represent the information to identify the owner, holder or depositee, etc. of the fiber cloth concerned or of the clothing, bedding or any other commodity to which the fiber cloth is attached by bonding or sewing, etc.
As can be seen from the above description, the optically readable identification mark in the present invention is typically a bar code, but is not limited thereto or thereby.
In the present invention, woven fabrics, knitted fabrics, nonwoven fabrics, etc. are generally called "fiber cloth". The present invention relates to fiber cloth with an optically readable mark recorded, with such features that the optically readable mark like a bar code can be accurately read without any error and that even if the fiber cloth is repeatedly subjected to washing and wearing, the mark can highly durably remain to allow reading and identification, without immediate loss of such capabilities. The present invention also relates to a production process thereof.


BACKGROUND

The distribution industry now resorting to the POS (point of sales) system widely uses bar code symbols for identifying individual articles.
For example, as dealers, bar codes are read to avoid the key entry into registers or to promptly identify sales tendencies for inventory control and sales results control, etc.
However, if identification bar codes are printed on fabrics, clothes, sewn products of beddings, etc., the conventional fiber cloth allows only deformed printing, unclear printing or printing low in optical density, to inconveniently lower the resolution for reading by bar code readers. Thus, the patterns obtained by printing bar codes on fiber cloth are apparently different from those obtained by printing on paper and films now mostly frequently used as optical recording media.
The reading accuracy and/or reading error rate of an optical reader significantly depends on the printing quality, and so, fiber cloth with any optically readable mark recorded has not yet been practically used because of such disadvantages as unclearness, low density and low resolution
It is proposed to coat cloth with a polymer or to use a film, but these methods have a serious defect that the cloth becomes hard. Furthermore, generally fiber cloth is often washed 50 to 70 times, and the washing causes the coating to peel or leaves wrinkles, making the printed bar codes unreadable by bar code readers any more.
The conventional fiber cloth has such a disadvantage that the bar code cannot be clearly printed unlike paper and so cannot be instantaneously or accurately read by an optical reader.
Therefore, at present, bar codes are popularly used for printing on paper and films.
Thus, bar codes are now mainly used for disposable goods. For example, in the laundry industry, it is practised to use tags with identification bar codes for laundry name identification, customers control, laundry agents control, etc. Concretely it is practised that a laundry agent attaches a piece of paper with a bar code recorded to any part of every article submitted by a customer for cleaning, so that the article cleaned by the laundry located at any other place may be correctly returned to the laundry agent concerned. The piece of paper with a bar code recorded is used only once and torn away after one time of use, since the article to be cleaned does not h

REFERENCES:
patent: 4766301 (1988-08-01), Evers
patent: 5123352 (1992-06-01), Luttrel

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