HIGH RESOLUTION ELASTOMERIC EXTERIOR LAMINATE MATERIAL AND METHOD OF FORMING SAME

Abstract

A high resolution elastomeric exterior laminate material includes an exterior polymeric film layer laminated to an ink graphic fabric layer. A method of making the high resolution elastomeric exterior laminate material includes providing an ink graphic fabric layer, providing an exterior polymeric film onto a first side of the an ink graphic fabric layer by one of a laminating, a molding, a rolling and an extrusion process to form a laminate.

Claims

1. A high resolution elastomeric exterior laminate material, which includes: an ink graphic fabric layer; and an exterior polymeric film layer bonded to said ink graphic layer to form a laminate configuration and retain an elastic characteristic with a transparent image, wherein said polymeric film imparts a tactile aspect to said laminate enhancing surface grip and durability.

2. The high resolution elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer includes one of a thermoplastic elastomer and a thermoset elastomer.

3. The high resolution elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer is hydrophobic.

4. The high resolution elastomeric exterior laminate material of claim 1, wherein said high resolution elastomeric exterior laminate material is integrated onto an exterior surface of a product.

5. The high resolution elastomeric exterior laminate material of claim 4, wherein said grip surface includes one of a golf club, a hockey stick, a racquet, a fishing rod, a bicycle handle, a floor, a boat deck, tool, firearm and a bat.

6. The high resolution elastomeric exterior laminate material of claim 1, wherein said ink graphic fabric layer includes one of a polyester, cotton, rayon and nylon which permits said ink graphic fabric layer to be stretched to conform to a multi-dimensional product configuration and retain image clarity.

7. The high resolution elastomeric exterior laminate material of claim 1, wherein said high resolution elastomeric exterior laminate material is integrated into an article of clothing.

8. The high resolution elastomeric exterior laminate material of claim 1, wherein said high resolution elastomeric exterior laminate material is a stand alone wrap.

9. The high resolution elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer includes a polymer in a range of 20 Shore A to 90 Shore A.

10. The high resolution elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer includes a range from 0.001 inches to 0.125 inches.

11. The high resolution elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer includes a surface texture formed thereon, wherein said surface texture has peaks and valleys, wherein a range of peak to valley.

12. The high resolution elastomeric exterior laminate material of claim 1, wherein said high resolution elastomeric exterior laminate material is formed by applying the exterior film layer to said ink graphic fabric layer in a continuous process using one of extrusion, lamination, molding and rolling.

13. The high resolution elastomeric exterior laminate material of claim 12, which includes an adhering agent promoting bonding between the between said exterior film layer and said ink graphic fabric layer.

14. The high resolution elastomeric exterior laminate material of claim 1, which further is further characterized to include said ink graphic fabric layer sandwiched between said exterior polymeric film layer and another exterior layer made of one of a polymeric film, a polyfoam, a woven and a non-woven material.

15. The high resolution elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer includes a predetermined geometric pattern which is of a size and shape to lend cushion to said high resolution elastomeric exterior laminate.

16. The high resolution elastomeric exterior laminate material of claim 14, wherein at least one said exterior polymeric film layer includes a predetermined geometric pattern which is of a size and shape to lend cushion to said high resolution elastomeric exterior laminate.

17. The high resolution elastomeric exterior laminate material of claim 5, which further includes a thermoformed retaining member configured to retain said laminate on one of said golf club, said hockey stick, said racquet, said fishing rod, said bicycle handle, said tool, said firearm and said bat.

18. The high resolution elastomeric exterior laminate material of claim 1, which further includes a polyfoam layer.

19. The high resolution elastomeric exterior laminate material of claim 1, wherein said ink graphic fabric layer is one of digitally, flexographic and gravure printed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] For a better understanding of the present invention, reference is made to the following description of an exemplary embodiment thereof, considered in conjunction with the accompanying drawings, in which:

[0029] FIG. 1A is an isometric view of a conventional tubular grip.

[0030] FIG. 1B is an isometric view of a tubular grip with end caps of the invention.

[0031] FIG. 2 is a cutaway view of a conventional tubular grip.

[0032] FIG. 3 is an exploded side view of the layers of an exemplary laminate of the invention.

[0033] FIG. 4A is an isometric view of the printed film.

[0034] FIG. 4B is an isometric view of an exterior film laminated to the printed film.

[0035] FIG. 5 is an isometric view of the laminated film with exterior texture.

[0036] FIG. 6 is an isometric view of the laminated film formed into a preform.

[0037] FIG. 7 shows a cutaway view of the preform placed in an injection mold cavity.

[0038] FIG. 8 shows a cutaway view of the molded part with the fused preform.

[0039] FIG. 9 shows a texture variant.

[0040] FIG. 10 shows another texture variant.

[0041] FIG. 11 shows still another texture variant.

[0042] FIG. 12 shows yet another texture variant.

[0043] FIG. 13 shows the invention applied to a golf grip.

[0044] FIG. 14 shows the invention applied to a fishing rod grip.

[0045] FIG. 15 shows the invention applied to a bat grip.

[0046] FIG. 16 shows the invention applied to a tool.

[0047] FIG. 17 shows the invention applied to a firearm.

[0048] FIG. 18 shows an embodiment of the invention as a wrap.

[0049] FIG. 19 is an isometric view of a boat surface having the invention deployed thereon.

[0050] FIG. 20 depicts the invention on a sandal.

[0051] FIG. 21 depicts the invention on a glove.

[0052] FIG. 22 depicts the invention on a t-shirt.

[0053] FIG. 23 depicts the invention on a hat.

[0054] FIG. 24 depicts the invention on the belt.

[0055] FIG. 25 depicts the invention a surf board.

[0056] FIG. 26 depicts an exemplary outer surface and geometric pattern of part of the laminate film of the invention formed by molding.

[0057] FIG. 27 depicts an application of the invention on a fishing wrap.

[0058] FIG. 28 depicts an application of the invention on a wrap.

DETAILED DESCRIPTION OF THE DRAWINGS

[0059] Referring now to the drawings, the high resolution elastomeric exterior laminate material of the present invention is generally designated by the numeral 10. The high resolution elastomeric exterior laminate material 10 in one example can be incorporated into 3 dimensional product such as a tubular product. Of particular preference is to use the high resolution elastomeric exterior laminate material 10 in products, such as sporting goods, where imagery, branding, and grip security are desired. Sport product handles include but are not limited to golf grips, racquet grips, paddle grips, hockey grips, fishing rod grips, bat grips, bicycle grips and others. The invention may be applied to other products such as tool grips, firearm grips, bow grips, can holders, vehicle and boat decks and floor mats, and other applications.

[0060] FIG. 1 shows an isometric view of a prior art conventional tubular grip 2. The grip 2 is an injection molded or compression molded product. The grip 2 may be elastomeric, and may be thermoplastic or thermoset. The grip 2 may be a single material homogeneous through the thickness of the product. The grip 2 may also be multi-layer meaning the exterior material is different than the interior material. The gripping stability is determined by the material and texture of the mold forming the grip 2. The graphics of the grip 2 are limited. Typically the grip 2 has recessed areas 3 on the exterior surface as denoted by the word “GRIP” that are painted with different colors to give the grip some visual attractiveness. This method of applying color to grip 2 is limited in resolution and color variance.

[0061] FIG. 2 shows a sectional view of grip 2. Here, there is shown a generally circular cross-sectional shape, but could be any shape such as octagonal as used on a racquet grip, or with a flat side as used on a golf putter grip. The grip 2 has a hollow interior diameter 4 and exterior surface 5, the difference forms a wall thickness. The exterior surface 5 of the grip 2 may have texture to provide traction and desired feel as illustrated in FIG. 26, for example. FIG. 26 is a honeycomb texture used for the on an underlying film layer 17 which is illustrated with varying sized patterns. FIG. 2 shows a golf grip, with recessed areas colored which is not intended to be a focus the instant invention. The recessed areas 3 on the exterior texture may be filled with a different color paint than the body of the grip 2.

[0062] FIG. 4A depicts an isometric view of the printed film 7 that has printed on the exterior surface with a high resolution image 8, which can be any indicia, including words or an entire pictorial. An aspect of the invention is also to provide a web portal with an ability to select or create an image to be used in the printed fabric 8. In this regard, there can also be provided a QR code or another tracking indicia any of which can be characterized digital information indicia during the creation process. As is known in the art, such a site can be used to gather contact information, such as name, address and email for future contact with respect to the buyer. In one embodiment, the printed fabric 8 can include a polymer material, or can be knitted to provide desired stretch properties. In another application the print image can be applied to a blended fabric (e.g., 10% polyester 90% colon blends, e.g., 90% polyester 10% lycra blend) wherein the ink die sublimates in polyester and is very clear and sets permanent. Printing technology has the capability of generating millions of colors in fine resolution, as much as 1800 dpi (dots per inch). Printing of the fabric can be efficient with machinery capable of printing at 60 d/minute. The particular blends provide a desired amount of stretch while retaining graphic clarity when stretched.

[0063] Of the particular importance in the instance invention is the added durability which the fabric provides in combination with a foam layer to be described hereinafter. It is believed that the closed cell structure inherently in foam typically requires a greater pound density for durability. This however is minimized through the other layers of material the instant invention rendering a relatively thin and durable material with a superior clarity and aesthetic appearance.

[0064] As illustrated in FIG. 1, thermoformed or vacuum formed plastic end caps 2A and 2B can be attached to a golf grip. Caps 2A and 2B are formed from a film that have decorative characteristics, i.e., chrome, or stainless or image. The film may be any polymer capable of thermoforming. The plastic material provides protection and identification for the golf grip.

[0065] The film may be metallic in appearance, such as brushed metal, polished chrome, or tinted metal. The film may have a carbon fiber fabric, or any decorative appearance not possible with typical golf grip materials such as rubber and polyurethane.

[0066] The plastic is typically harder than rubber or polyurethane, protecting the grip from going in and out of the bag, or impacting other objects. The plastic film should be elastic in order to comply with the stretch of the grip upon installation, yet offer protection beyond other materials. The appearance of metal-looking caps 2A and 2B will give the golf grip 2 a unique identity.

[0067] FIG. 4B illustrates preform 10 with an exterior film 12 applied on the printed side of the underlying fabric 14. The exterior film 12 may be transparent to allow visibility of the printed image. The exterior film 12 may vary in thickness, ranging from 0.003 inches to 0.050 inches. The exterior film 12 may be tinted if desired to generate an appealing visual. The underlying fabric 14 can likewise be provided with a material similar to the exterior material for applications in providing a stand alone product, such as a coaster or can or bottle wrap. Another contemplated use of the invention is for belts and ball caps.

[0068] One embodiment contemplates the underlying fabric layer 14 can have exterior film 12 formed in a predetermined geometric pattern e.g., 50a, 50b, 50c, such as a honeycomb as seen in FIG. 26, which can be of a desired size or other pattern to provide a desired feel and cushion as function of width and depth. Optionally, a foam layer 17 can also be employed for additional cushion as explained herein. FIG. 3 shows exterior layer 12A and 12B with interposed fabric layer 14 and foam layer 17. It is also contemplated that two of the layers may be used alone as part of the novelty of the invention. With the instant invention, there is provided a foam density reduction of many weight factors while maintaining equivalent durability. Thus, the invention enables a durable usage for indoor/outdoor application.

[0069] FIG. 5 shows the exterior film 12 in FIG. 4 with a texture 15. The texture 15 in this example is a regular pattern of crossed grooves. The texture 15 provides enhanced traction to the exterior surface, increasing grip stability in wet or humid conditions. The texture 15 may vary from small peak to valley depths around 0.005 inches to large peak to valley depths of 0.040 inches. The spacing of the texture 15 may also vary.

[0070] FIG. 6 is an isometric view of the coated printed preform 10 formed into a tubular shape called a preform 16. The preform 16 may be of constant diameter or conical or some other tubular variance. The preform 16 edges may be adhered to retain the shape of the preform. Alternatively, the preform may be fixed with a low strength adhesive to allow it to expand during molding.

[0071] FIG. 7 is a cutaway view showing the preform 16 placed in a cavity 20 of the injection mold 22. The preform 16 may have indexing means to accurately position it in the mold so its orientation and location are controlled. The preform 16 may be held by vacuum or electrostatic charge to prevent it from moving during the injection of the material.

[0072] FIG. 8 is a cutaway view of the molded part showing the elastomeric body 18 of the grip and the fused preform 16 on the exterior. The preform 10 adheres to the body of the grip and is integrated. The image printed on the preform 10 is visible through the transparent exterior film. The texture of the exterior film is retained during molding.

[0073] FIG. 9 illustrates a square pattern texture showing orthogonal grooves crossing.

[0074] FIG. 10 illustrates a pattern of raised dots as a texture pattern.

[0075] FIG. 11 illustrates a herringbone pattern of texture

[0076] FIG. 12 illustrates a decorative pattern of texture. The texture pattern doesn't have to align with the graphics of the printed image. The texture pattern may be independent of graphic design.

[0077] FIG. 13 is an isometric view of a golf grip using the invention.

[0078] FIG. 14 is an isometric view of a fishing road using the invention.

[0079] FIG. 15 is an isometric view of a baseball bat using the invention.

[0080] FIG. 16 is an isometric view of a hammer using the invention.

[0081] FIG. 17 is an isometric view of a firearm using the invention.

[0082] FIG. 18 is an isometric view of a wrap for an article.

[0083] FIG. 19 is an isometric view of a boat surface having the invention deployed thereon.

[0084] FIG. 20 shows an embodiment of the invention as a sandal showing an image below a tactile, non-slip surface

[0085] FIG. 21 shows an embodiment of the invention as a glove showing an image below a tactile, non-slip surface

[0086] FIG. 22 shows an embodiment of the invention as a shirt showing an area for creating padding and non-slip for resting a firearm.

[0087] FIG. 23 shows an embodiment of the invention as a hat showing a textured image on the brim of a cap.

[0088] FIG. 24 shows and embodiment of the invention as a belt showing a textured image on the belt.

[0089] FIG. 25 shows an embodiment of the invention applied to a paddleboard to create an image with a non-slip surface.

[0090] FIG. 26 shows a surface pattern configuration formed as part of the exterior surface of a laminate of the invention to lend a desired feel and cushion.

[0091] FIG. 27 depicts a plan view fishing rod wrap. Note, the hole is provided for a trigger finger.

[0092] FIG. 28 depicts a side view of a baseball bat wrap.

[0093] Boats and other vehicles have a need for high friction mats for traction and decoration. Using adhesive to attach the mat works except when the mat must be removed. Removal of the mat is preferred when cleaning the boat, for example cleaning up fish debris or other unpleasant muck. A mat that is adhered cannot be easily removed. If an adhesive is used, then the adhesive must be removed from both the mat and boat surface.

[0094] A mat that can have a removable attachment to the boat surface is preferred. A surface geometry that promotes cohesion or suction to attach the mat is preferred. A mat with a cohesive attachment will function as an adhered mat, yet be removable. The preferred design is to have a 3d texture with suction cup features, for example protrusions with a concave element to them coupled with a relief groove surrounding the protrusions to allow side deformation to increase suction.

[0095] The invention enables the creation of tactile feel tailored to a predetermined hardness. In general a tactile feel is of personal preference to one's skin. For example, the laminate surface can be about the same hardness and friction as skin. This requires a polymer that provides similar characteristics to skin, in the general range of 20 Shore A to 50 Shore A, preferably in the range of 30 Shore A to 40 Shore A, but it is contemplated that higher durometer can be employed for specific application.

[0096] The thickness of each polymer film can vary depending on the desired tactile feel. Film thicknesses ranging from 0.001 inches to 0.125 inches and can achieve a wide range of tactile feel. The preferred range is between 0.010-0.040 inches in thickness.

[0097] The comfort of the grip may be important in various applications. Comfort is determined by film thickness, hardness, and texture. In general the thicker the film 12, and the lower the hardness, the greater the comfort. The surface texture 15 of the film 12 has a significant effect on comfort and traction. The surface texture 15 can have peaks and valleys to provide the desired feel. The range of peak to valley texture can vary from 0.001 inches to 0.040 inches. The spacing of the texture is also a variable, with texture very small classified as microtexture, with peak to peak (or valley to valley) spacing as little as 0.001 inches. Alternatively, peak to peak spacing can be very wide as large as 0.25 inches.

[0098] The shape of the texture 17 will also effect feel, comfort, and traction. Texture 17 may be rounded or smooth, creating more comfort. Texture 15 may be jagged and rough, to offer greater bite, for example, for handles used with gloves.

[0099] The traction of a grip is measured by the friction, or the force required to slide the hand on the surface of the grip. There exist a variety of polymers with different coefficients of friction (COF). In general it is desired to have a polymer with a high COF. The exterior film 12 may be thermoplastic or thermoset. The exterior film 12 will have a hyrdophobic property for high traction when wet.

[0100] The clarity or transparency of the exterior film 12 is important in order to show the printed images under the film. In general thermoplastic polymers or elastomers are preferred because they are more transparent. There exist several thermoplastic elastomers such as polyurethane and polymer material that provide the desired combination of durometer, tactile feel, high friction, and transparency.

[0101] Applying the exterior film 12 to the printed fabric 14 may be done via laminating or in a continuous process such as molding, extrusion and/or rolling. This can be a laminating process to compress and consolidate the exterior film 12 and printed fabric 14. This is a highly controlled process with precise machinery to control the pressure, film thickness, and eliminate any air between the exterior film 12 and printed fabric 14. An adhering agent can be provided promoting bonding between the between the exterior film 12 and printed fabric 14, such as adhesive layer, bonding agent, or primer.

[0102] The printed fabric 14 with the exterior film 12 is coined “preform” 16 as it is in a useful shape for its intended application, e.g., a golf grip. The exterior film 12 may or may not have a texture. The preform 16 may be laminated with a foam or nonwoven backing to create a laminate that in one use may be cut to form a grip strip that is wrapped around a handle.

[0103] That polymer foam could be polyurethane, polyethylene, polystyrene, EVA, neoprene, etc. Some applications, the foam may be any thickness, between 0.010″-0.250″. For example, for grips it will be between 0.020″-0.080″. For mats, it will be between 0.100″-0.50″. The foam may vary in density, cell size, etc to provide the desired cushion.

[0104] The foam may be attached to the laminate using adhesive. A film adhesive can be fixed to the laminate with pressure and heat from a press or laminating machine. It can also be attached using induction heating, where the film is impregnated with conductive material and only the film is heated as pressure is applied by a press or laminating machine. The induction heating has the advantage of reducing foam cell compression because only the film is heated.

[0105] The foam may be adhered without any film adhesive. Heat can be applied at the interface during a lamination process. The heat zone needs to be closely controlled so only the interface of the materials being bonded is heated to achieve polymer softening, flow, and bonding. The polymer content of the foam and laminate must be compatible for this process to achieve adhesion.

[0106] It may be desirable to have more than one layer of foam, for example, a more dense foam on either the top or bottom side of a less dense foam. These foams may be laminated by either of the above mentioned processes (heat or induction). The multilayer foam laminate could be laminated before laminating to the laminate, or everything can be laminated together. A multilayer foam laminate using one or more features of the invention is contemplated. Alternatively, the preform 16 is prepared for subsequent molding operation will vary depending on the geometry of the product. For a grip product, it will likely be circular or tubular. The preform 16 can be in sheet form. The preform 16 can be die cut to the desired shape so when rolled or applied on a tube, for example, it approximates the cavity 20 of the injection mold 22. The preform 16 can be mended together at end joints by tape, adhesive, stitching, or other suitable means. In some applications the preform is not fused together to allow the preform to expand freely and conform to the injection mold cavity. In other applications the preform 16 may not cover full circumference of the desired product geometry. The preform 16 may envelope the article to which it attaches, or cover a partial revolution, such as 270 degrees, or 180 degrees, or 90 degrees or less.

[0107] In one contemplated embodiment, the preform 16 can be placed in an injection mold 22 and the mold 22 is closed. Elastomer 18 is injected on the interior side of the preform 16 which creates internal pressure and forces the preform to the cavity geometry. Once the elastomer 18 fills the cavity and presses the preform 16 to the cavity walls, the injection of the elastomer 18 is stopped. The mold 22 is cooled and the product is removed from the injection mold 22.

[0108] An alternative method of applying a high resolution printed and coated image to a product is forming the preform 16 to a previously formed article. This method involves placing the preform 16 over the molded part and applying exterior pressure to fix the preform 16 to the molded part. In desired applications, heat can be applied to facilitate forming the microporous film to the contour of the molded part.

[0109] In another embodiment, the preform 16 can be provided on the outer surface to create a mat surface which can be laid onto a surface such as a deck thereby imparting a visually aesthetically pleasing image with an anti-slip surface and drawings herewith are illustrative of uses of the embodiments.

[0110] The products created using this technology will have a high resolution image on the exterior of the part. That image may be photographic quality showing any image that may be printed by flexographic or digital methods. An exterior film shall be applied over the printed image to provide a tactile feel. The exterior film may have a texture formed to enhance the friction or gripping power of the exterior surface. The texture may be within the thickness of the exterior film or transfer to the printed film. An exterior texture that is formed is provided by a deformed film is capable of greater texture depth, as defined by the peak to valley dimension. The exterior film may be offered in range of hardness, from a soft Shore A 20 to a harder Shore A 90. The texture may range from small undulations of smooth contour to large undulations of sharp radii of peaks and valleys. Additionally, there can be provided a variability of texture and depth.

[0111] Another contemplated use of the invention can be for mats and mud flaps with decorative layer. Printed fabric attached to polymer mud flaps to add some decoration. Mud flaps are typically made from compressed, or injected, or extruded rubber or other polymeric or elastic materials. There is a need to decorate mud flaps with a logo or other information. That artwork is typically screen printed or hot stamped. Any conventional method is limited to the detail of the graphic, number of colors, etc.

[0112] The concept of printing a high resolution image on a fabric, and applying the printed fabric to the mud flap will create a decorated mud flap with superior graphics. Digital printed artwork is capable of millions of colors and resolutions up to 1800 dpi. The proposed method would be print the graphic on a polyester fabric. That printed fabric may or may not receive a protective clear coat.

[0113] The coated printed fabric may be co-molded with the mud flap when it is molded or extruded. Alternatively, the coated printed fabric may be bonded to the mud flap.

[0114] A product with enhanced gripping means combined with high resolution imagery is unique and desirable. The imagery may have millions of colors including neons, metals, chromes, and flakes. The exterior surface of the product may have a range of hardness and texture. The printed images may resist UV and Ozone better than existing thermoplastics and thermosets. The texture of the exterior film is independent of the printed image, providing design flexibility and enhanced product performance. Numerous products may be enhanced with the present invention.

[0115] It will be understood that the embodiment of the present invention assembly and method that have been illustrated are merely exemplary and that a person skilled in the art can make variations to the shown embodiment without departing from the intended scope of the invention. All such variations, modifications and alternate embodiments are intended to be included within the scope of the present invention as defined by the claims.