POLYPROPYLENE NONWOVEN FABRIC MODIFIED WITH UNSATURATED CARBOXYLIC ACID

Title:

POLYPROPYLENE NONWOVEN FABRIC MODIFIED WITH UNSATURATED CARBOXYLIC ACID

Document Type and Number:

Japanese Patent JPH01221573

Kind Code:

A

Abstract:

PURPOSE: To obtain the title nonwoven fabrics with water retention increased by applying an unsaturated carboxylic acid or its derivative to the surface of a polypropylene nonwoven fabric and irradiating with active high energy rays to effect graft modification.

CONSTITUTION: A polypropylene nonwoven fabric is coated with an unsaturated carboxylic acid or its derivative on its surface, then irradiated with active high energy beams, such as plasma discharge treatment, or irradiation with high energy beams followed by coating the fabric with the monomer or dipping a polypropylene nonwoven fabric in the monomer solution, then irradiating the solution with active high energy beams to effect graft modification whereby the subject nonwoven fabric of high water retention is obtained. The unsaturated carboxylic acid is preferably (meth)acrylic acid, maleic acid or its anhydride. It is used widely in paper diapers and sheets for civil purposes.

Inventors:

YASUTAKE TATSUO
TOKITA TAKU
INAGAKI HAJIME

Application Number:

JP4575988A

Publication Date:

September 05, 1989

Filing Date:

March 01, 1988

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUI PETROCHEMICAL IND

International Classes:

D06M14/10; D06M13/02; D06M13/184; D06M13/203; D06M14/28; D06M101/00; D06M101/16; D06M101/18; (IPC1-7): D06M14/10; D06M14/28

Domestic Patent References:

JPS5258772A	1977-05-14
JP38014829A
JPS4975899A	1974-07-22

Attorney, Agent or Firm:

Ikuo Suzuki (1 person outside)

Previous Patent: DURABLE WATER-AND OIL-REPELLENT AND ANTISOILING FINISH FOR FIBER STRUCTURE

Next Patent: SOIL-PROOF POLYAMIDE FIBER