Browse Prior Art Database

Method to Remove Positive Photoresist Stains From Garments

IP.com Disclosure Number: IPCOM000120160D
Original Publication Date: 1991-Mar-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 1 page(s) / 23K

Publishing Venue

IBM

Related People

Davis, CM: AUTHOR

Abstract

After exposing a positive photoresist stain in a garment to actinic light, the stain may then be removed by soaking the garment in an appropriate developing or solvent solution.

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Method to Remove Positive Photoresist Stains From Garments

      After exposing a positive photoresist stain in a garment to
actinic light, the stain may then be removed by soaking the garment
in an appropriate developing or solvent solution.

      A positive photoresist stain in a garment is first exposed to
appropriate light for a period of time, e.g., light from a nearby 40
watt fluorescent lamp for a half hour.  Then, by soaking the garment
in a developer, e.g., sodium metasilicate solution (1-2% by weight in
water), followed by a water rinse, the stain is removed.

      Time of soaking to completely remove visible signs of a
photoresist stain from a garment vary with time elapsed since the
stain was first formed.  For instance, some old stains may require a
soak time of 100 hours for complete removal.

      Disclosed anonymously.