Article for treating menstrual fluid

• US 3,939,838 A
• Filed: 08/20/1974
• Issued: 02/24/1976
• Est. Priority Date: 08/20/1974
• Status: Expired due to Term

• Current Assignee: Unicharm Kabushiki Kaisha
• Original Assignee: Unicharm Kabushiki Kaisha
• Inventors: Nagano, Tadashi, Fujinami, Nobuakira
• Primary Examiner(s): Medbery, Aldrich F.
• Application Number:
  US05/498,893
• Time in Patent Office: 553 Days
• Field of Search: 128/284, 128/287, 128/290 R, 128/290 P, 128/296, 128/285
• US Class Current: 604/359
• CPC Class Codes: A61F 13/534 having an inhomogeneous composition through the thickness of the pad A61F13/538, A61F13/539 take precedence; homogeneous cores with tissue wrapping A61F13/53
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61F 2013/51042 with hydrophobic and hydrophilic fibres
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/53445 from several sheets
• CPC Class Codes: A61F 2013/842 with active charcoal
• CPC Class Codes: A61L 15/46 Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• CPC Class Codes: A61L 2300/102 Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
• CPC Class Codes: A61L 2300/108 Elemental carbon, e.g. charcoal
• CPC Class Codes: A61L 2300/608 having two or more layers

Abstract

An article for treating menstrual fluid employs a cover member forming an enclosure, an absorbent layer positioned within the enclosure for absorbing the menstrual fluid, a water-proofing layer also positioned within the enclosure for preventing the menstrual fluid absorbed by the absorbent layer from permeating to the outside of the cover member and a deodorizer composition such as active carbon and the like located within the enclosure and having the function of absorbing and holding the menstrual fluid and simultaneously removing the odor released from the menstrual fluid.

Claims

1. An article for treating menstrual fluid comprising:

a cover member forming an enclosure, said cover member being made of a porous non-woven sheet of cellulose fiber and artificial fiber;

a cottony thin web attached to the inside of said enclosure;

an absorbent layer means positioned within said enclosure and said web for absorbing the menstrual fluid;

a first water-proofing layer means positioned under said absorbent layer means;

a deodorizer means located within said enclosure and having the function of absorbing and holding the menstrual fluid and simultaneously removing the odor released from the menstrual fluid; and

a second water-proofing layer means in contact with the cottony web and positioned under and around the sides of said first water-proofing layer, said absorbent layer and said deodorizer means;

said first and second water-proofing layers defining means for preventing any menstrual fluid not absorbed by the absorbent layer from permeating to the outside of said cover member.

2. An article for treating menstrual fluid as defined in claim 1 wherein said deodorizer means consists of at least one material selected from the group consisting of active carbon, active silica, active alumina and ion exchange resin.