BACKGROUND OF THE INVENTION This is a Continuation-In-Part of co-pending Application, U.S. Ser. No. 10/974,244 filed Oct. 25, 2004.
FIELD OF THE INVENTION The present invention relates generally to clothing. More particularly, the invention concerns a novel perspiration absorbing, odor eliminating shield and the method of making same for use in connection with garments, such as undershirts, socks and the like.
DISCUSSION OF THE PRIOR ART A number of different types of perspiration shields have been suggested in the past to protect garments from becoming soiled due to excessive perspiration. Most common of these prior art perspiration shields are dress shields that are particularly designed for women. Typically, the prior art dress shields are designed to absorb underarm perspiration so as to prevent the perspiration from soaking through to the outer garment and becoming visible underneath the sleeve area of the garment.
In the past, little attention has been given to the design of perspiration shields for use by men. By way of example, U.S. Pat. No. 6,282,720, issued to J. Mayera discloses lightweight tightly fitted garment for women that include potential for perspiration shields in the underarm area. However, as is apparent from the patent drawings, the Mayera design is to be used only by women and is created to be an alternative to the heavier weight, larger design of men's T-shirts. More particularly, the Mayera T-shirt is basically characterized by a fabric torso enclosure and a pair of fabric sleeves, each having inner and outer end openings. The torso enclosure has a top, a neck opening in the top, a bottom including a waist opening, and a pair of arm openings at upper side locations. Seams connect the inner end openings of the sleeves to the torso enclosure at the arm openings. The seams are positioned to extend over the clavicle/acromion regions of a wearer of the shirt. Each sleeve has a top length measured from the seam to the sleeve outer end opening at the top of the sleeve, and a bottom length, measured from the seam to the sleeve outer end opening at the bottom of the sleeve. The bottom length of the sleeve is longer than the top length of the sleeve. The sleeves provide perspiration absorbing fabric contiguous both armpits of the wearer.
In addition to giving little concern to perspiration shields suitable for use by men, the prior art has suggested no type of perspiration shield that both absorbs perspiration and at the same time tends to eliminate unpleasant perspiration odors.
In addition to being specifically designed for use by women, the prior art perspiration shields are often difficult to correctly position in the perspiration area, do not adequately conform to the garment being worn by the user and have a tendency to bunch up and become dislodged during use.
It is an object of the present invention to overcome the deficiencies of the prior art and, for the first time, to provide a novel perspiration shield that is suitable for use by both men and women. The perspiration shields of the present invention can be conveniently affixed to a garment in an area of perspiration and, as will presently be discussed, uniquely embody a blend of wicking yarn and silver coated, odor eliminating yarn. In this regard, it has long been known that silver has a broad spectrum of antimicrobial properties. Accordingly, silver has been widely used in healthcare products, including bandages, burn care treatments, catheters and any number of products where infection control is critical.
Advantageously, techniques have been developed for irreversibly binding silver to polymer fibers and yarns that can be used to construct fabrics that can be used for a variety of purposes. When the silver coated fabrics are used in the production of articles of apparel, such as those of the present invention, the antimicrobial properties of the silver function to eliminate odor causing bacteria, thereby substantially reducing perspiration odor. Ammonia and denatured proteins are also contributors to odor in certain types of apparel. Advantageously both ammonia and denatured proteins readily bond to silver resulting in substantial odor reduction in these types of apparel.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an odor reducing article of apparel and the method of making same which includes perspiration shields that are strategically located contiguous to areas of perspiration which not only effectively absorb perspiration but also significantly reduce perspiration odor.
More particularly, it is an object of the invention to provide an article of apparel of the aforementioned character in which the perspiration shields function to substantially eliminate odor causing bacteria contained within the perspiration of the wearer.
Another object of the invention is to provide an article of apparel as defined in the preceding paragraphs, in which the perspiration shield is of a character that becomes more effective in a hot, wet environment.
Another object of the invention is to provide an article of apparel of the character described which includes perspiration shields that contain no chemicals or pesticides.
Another object of the invention is to provide a perspiration shield that can readily be affixed to an article of apparel at a location of heavy perspiration and which uniquely absorbs perspiration and at the same time substantially reduces perspiration odor.
Another object of the invention is to provide a perspiration shield of the character described in the preceding paragraph that includes a thin barrier membrane that is disposed between the perspiration absorbing component of the shield and the article of apparel to which the shield is affixed, thereby protecting the article of apparel from perspiration of the user.
Another object of the invention is to provide a perspiration shield of the class described that is of a simple construction and one that can be inexpensively manufactured in large volume.
BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a generally perspective, diagrammatic view illustrating one form of the odor reducing article of apparel of the present invention.
FIG. 2 is a top plan view of one form of the perspiration shield of the present invention.
FIG. 3 is a cross-sectional view taken along lines3-3 ofFIG. 2 showing the components that make up the perspiration shield in exploded form.
FIG. 4 is a greatly enlarged view of the area designated as4-4 inFIG. 2.
FIG. 5 is a top plan view of an alternate form of perspiration shield of the present invention.
FIG. 6 is a cross-sectional view taken along lines6-6 ofFIG. 5 showing in exploded form the elements that make up the alternate form of perspiration shield of the invention.
FIG. 7 is a greatly enlarged view taken along lines7-7 ofFIG. 6.
DESCRIPTION OF THE INVENTION Referring to the drawings and particularly toFIG. 1, one form of the odor reducing article of apparel of the present invention is there shown, and generally designated by thenumeral14. This article of apparel is here shown as a man's T-shirt havingunderarm covering portions16 to which the uniquely formedperspiration shields18 of the invention are affixed.
As best seen by also referring toFIGS. 2 and 3, each of theperspiration shields18 of the article of apparel comprise a perspiration absorbing,odor reducing component20 and a cooperatinggarment shield22. As indicated inFIGS. 1 and 2, theperspiration shields18 are strategically configured to substantially cover the underarm portions of the T-shirt.
In the present form of the invention, the perspiration absorbing,odor reducing components20 each comprises a fabric swatch constructed from apolyester wicking yarn24 that is interwoven or knitted in a conventional manner with a silver coated polymer yarn26 (FIG. 4). As best seen inFIG. 3, thegarment shield components22 here comprise a thin, yieldably deformable,polyurethane membrane28 having first and second surfaces28aand28b.
In a manner presently to be described, thegarment shield components22 are securely interconnected with perspiration absorbing,odor reducing components20 to form a precursor subassembly. As indicated inFIG. 3, thegarment shield components22, further comprise a multiplicity of heat activated adhesive particles. More particularly, as depicted inFIG. 3, the first surface28aof themembrane28 is covered with a multiplicity of heat activatedadhesive particles30, while second surface28bof the membrane is coated with a multiplicity of heat activatedadhesive particles32. As will be described in connection with the discussion of the methods of the present invention which follows,particles30 function to bondmembrane28 tocomponent20, whileparticles32 function to bond the precursor subassemblies, orperspiration shields18, to the under arm covering portions of the T-shirt in the manner shown inFIG. 1.
When the perspiration shields are interconnected with the article ofclothing14 in the manner shown inFIG. 1, the perspiration absorbing,odor reducing components20 are positioned in engagement with the underarms of the garment wearer and themembranes28 are positioned in engagement with the underarm portions of the garment. With this construction, the antimicrobial properties of the pure silver which coats thepolymer yarn26 function to eliminate odor causing bacteria, thereby substantially reducing perspiration odor. At the same time, the thin,polyurethane membranes28 function to protect the article of clothing from perspiration thereby substantially eliminating perspiration stain on the underarm portions of the article of clothing. It is to be understood that the perspiration shields of the invention can be affixed to selected body covering areas of various types of clothing covering areas of heavy perspiration such as sweat socks and the like to absorb perspiration and reduce perspiration odors.
Considering next the methods of the present invention, in one form of the invention, the method of making theperspiration shields18 comprises the steps of first constructing the perspiration absorbing,odor reducing component20 by interweaving in a conventional manner thepolyester wicking yarn24 with the silver coatedyarn26 in the general configuration depicted inFIG. 4. This done, thegarment shield component22 is constructed by distributing the heat activatedadhesive30 on the first surface28a ofmembrane28 to form an adhesive coated membrane. Next, the adhesive coated membrane thus formed is placed over the perspiration absorbing,odor reducing component20 to form a precursor subassembly. With the adhesive coated membrane thus positioned over thecomponent20, the assembly thus formed is simultaneously heated and compressed in a manner to activate the adhesive30 and effectively bond together the adhesive coated membrane and the perspiration absorbing,odor eliminating component20. This heating and compression step can be accomplished in various ways as, for example, in a heated platen press, or in a roller laminating system both of which are of a character well understood by those skilled in the art. A suitable platen press for accomplishing this latter step is available from Danalco, Inc. of Duarte, Calif.
In accordance with the method of the invention for constructing an odor reducing article of apparel from a selected garment, the perspiration shields18 formed in accordance with the method described in the preceding paragraph, are affixed to the selected garment in the body area of heavy perspiration by any suitable manner, such as sewing or adhesive bonding.
When the perspiration shields are to be affixed to the garment by adhesive bonding, the heat activated adhesive32 is randomly deposited on surface28bof themembrane28 by any suitable means and the assemblage thus formed is heated in a manner to effectively fuse the heat activated adhesive32 to the surface28b. This heating step can be accomplished in various ways, including passing an infrared heater above the surface of the membrane at a suitable, elevated temperature sufficient to melt the adhesive without damaging the membrane film.
Bonding of the adhesive coated perspiration shield to the garment is accomplished by first placing the adhesive coated perspiration shield over the perspiration area, such as the underarm covering portion of the T-shirt shown inFIG. 1 so that said second surface of said membrane is in engagement with the underarm covering portion of the garment. This done, the adhesive coated perspiration shield and the underarm covering portion of the garment are simultaneously heated and compressed to effectively bond the adhesive coated perspiration shield to the garment. As before, this heating and compression step can be accomplished in various ways, either in a heated platen press, or in a roller laminating system of a character well understood by those skilled in the art. A suitable platen press for accomplishing this latter step is also available from Danalco Inc. of Duarte, Calif.
Referring now toFIGS. 5 through 7 of the drawings, an alternate form of the odor reducing perspiration shield of the present invention is there shown, and generally designated by the numeral34.Perspiration shield34 is similar in some respects to the perspiration shields of the first embodiment of the invention and like numerals are used inFIGS. 5 through 7 to identify like components. As in the earlier described embodiment of the invention, the perspiration shields34 can be conveniently affixed to an article of apparel, such as a man's T-shirt having underarm covering portions16 (FIG. 1). As indicated inFIG. 5, the perspiration shields34 of this latest form of the invention are strategically configured to substantially cover the underarm portions of the T-shirt.
In the form of the invention illustrated inFIGS. 5 through 7, the perspiration shields34 each comprise an odor reducingfabric swatch35 having first andsecond layers36 and38 respectively. First layer36 is constructed from apolyester wicking yarn24 that is interwoven or knitted in a conventional manner with a silver coatedpolymer yarn26 to form a fabric somewhat similar to that shown inFIG. 4 of the drawings. However, in this latest form of the invention, the silver coatedpolymer yarn26 is plaited into the fabric in a manner so that it principally lies proximate the outer face of thefabric swatch35 as indicated inFIG. 6.
Each odor reducing fabric swatch of the present invention also includes asecond layer38 that is constructed from a suitable wicking yarn, such as the wickingyarn24, to form a fabric layer of the character shown inFIG. 7 of the drawings. As indicated inFIG. 6 of the drawings, first layer36 has afirst surface36aand asecond layer38 having a second surface38a.
In a manner similar to that described in connection with the description of the first embodiment of the invention, the odor reducingfabric components34 of this alternate form of the invention can be securely interconnected with an article of apparel such as that shown inFIG. 1 of the drawings. For this purpose, the second surface38a ofsecond layer38 is covered with a multiplicity of heat activated adhesive particles30 (FIG. 6). As will presently be described in connection with the discussion of the method of this alternate form of the invention,particles30 function to affix eachodor reducing swatch34 to the underarm covering portions16 of the T-shirt in the same manner ascomponents18 are affixed to the T-shirt (seeFIG. 1).
As in the earlier described embodiment of the invention, when the odor reducing perspiration shields34 of this latest form of the invention are interconnected with the article ofclothing14 in the manner shown in FIG.1,first surfaces36aof the first layers36 are positioned in engagement with the underarms of the garment wearer and the second surfaces38aare positioned in engagement with the underarm portions of the garment. With this construction, the antimicrobial properties of the pure silver which coats thepolymer yarn26 plaited into the first layers36 of the swatches, function to eliminate odor causing bacteria, thereby substantially reducing perspiration odor. It is to be understood that in this latest form of the invention, the odor reducing perspiration shields of the invention can be affixed to selected body covering areas of various types of clothing other than T-shirts, as, for example, sweat socks, sweat shirts, sweat pants, and the like to absorb perspiration and reduce perspiration odors.
Considering next the methods of this alternate form of the invention, in one form of the invention, the method of making the perspiration shields34 comprises the steps of first interweaving or knitting, in a conventional manner, thepolyester wicking yarn24 with the silver coatedyarn26 to form the first fabric layer36 in which the silver coating yarn residesproximate surface36a. At the same time a suitable wicking yarn, such aswicking yarn24, is interwoven, in a conventional manner, to form thesecond fabric layer38 which is appropriately interwoven with first fabric layer36 to form thefabric swatch35. The next step in the alternate method of the invention involves the distribution of the heat activatedadhesive particles30 onto the second surface38a of the swatch to form an adhesive covered component. This done, the adhesive covered component thus formed is heated to an elevated temperature sufficient to melt the heat activated adhesive30 and cause it to bond to the second surface38aoffabric layer38 and to thereby form theperspiration shield34 of the invention. This heating step can be accomplished in various ways as, for example, by exposing second surface38ato a conventional infrared heater.
In accordance with this alternate form of the method of the invention for constructing an odor reducing article of apparel from a selected garment, the perspiration shields34 formed in accordance with the method described in the preceding paragraphs, are affixed to the selected garment in the body area of heavy perspiration by any suitable manner, such as sewing or adhesive bonding.
When the perspiration shields34 are to be affixed to the garment by adhesive bonding, the shields are placed over the perspiration area, such as the underarm covering portion of the T-shirt shown inFIG. 1, so that adhesive coated surface38a of thesecond layer38 of the fabric swatch is in engagement with the underarm covering portion of the garment. This done, the perspiration shield and the underarm covering portion of the garment are simultaneously heated and compressed to effectively bond the adhesive coated perspiration shield to the garment. As before, this heating and compression step can be accomplished in various ways, either in a heated platen press, or in a roller laminating system of a character well understood by those skilled in the art. A suitable platen press for accomplishing this latter step is also available from Danalco, Inc. of Duarte, Calif.
Having now described the invention in detail in accordance with the requirements of the patent statutes, those skilled in this art will have no difficulty in making changes and modifications in the individual parts or their relative assembly in order to meet specific requirements or conditions. Such changes and modifications may be made without departing from the scope and spirit of the invention, as set forth in the following claims.