YELLOWING-RESISTANT POLYAMIDE FIBER AND CLOTH

PURPOSE:To obtain a yellowing-resistant polyamide fiber exhibiting durable effect by applying a water-solubilized silicone compound to a specific polyamide fiber compounded with a specific organic acid. CONSTITUTION:This polyamide fiber (or its cloth) having low color deviation and exhibiting excell...

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Bibliographic Details
Main Authors MORIFUJI YOSHINORI, SHIBATA MIDORI
Format Patent
LanguageEnglish
Published 28.02.1995
Edition6
Subjects
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Summary:PURPOSE:To obtain a yellowing-resistant polyamide fiber exhibiting durable effect by applying a water-solubilized silicone compound to a specific polyamide fiber compounded with a specific organic acid. CONSTITUTION:This polyamide fiber (or its cloth) having low color deviation and exhibiting excellent yellowing-preventive effect is produced by immersing a polyamide fiber or cloth in an aqueous solution containing an alpha-oxycarboxylic acid (especially preferably citric acid) and having pH adjusted to <=4 and applying a water-solubilized silicone having recurring units expressed by the formula (R is 1-5C hydroxyalkyl) to a polyamide fiber or its cloth preferably by padding treatment to obtain a polyamide fiber containing <=15mumol./g-fiber of amino groups having alpha-oxycarboxylic acid clustered around the group and amino groups free from the carboxylic acid. The polyamide fiber cloth does not deposit white powder on the pressor foot of a sewing machine and has excellent sewability.
Bibliography:Application Number: JP19930200834