HIGH RESOLUTION ELASTOMERIC EXTERIOR LAMINATE MATERIAL AND METHOD OF FORMING SAME
20230158782 · 2023-05-25
Inventors
Cpc classification
B32B2266/0228
PERFORMING OPERATIONS; TRANSPORTING
B32B27/12
PERFORMING OPERATIONS; TRANSPORTING
B32B2262/106
PERFORMING OPERATIONS; TRANSPORTING
B32B2260/021
PERFORMING OPERATIONS; TRANSPORTING
B32B2274/00
PERFORMING OPERATIONS; TRANSPORTING
B32B2255/02
PERFORMING OPERATIONS; TRANSPORTING
B32B5/18
PERFORMING OPERATIONS; TRANSPORTING
B32B3/30
PERFORMING OPERATIONS; TRANSPORTING
B32B25/10
PERFORMING OPERATIONS; TRANSPORTING
International classification
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. An elastomeric exterior laminate material comprising: an ink graphic fabric layer having an image printed thereon; and an exterior polymeric film layer, wherein said polymeric film layer is substantially transparent and imparts a nonslip tactile surface to the elastomeric exterior laminate material and wherein the exterior polymeric film layer is bonded to the ink graphic fabric layer by applying heat and pressure to the exterior laminate material such that a portion of the exterior polymeric film layer is forced through the ink graphic fabric layer.
2. The elastomeric exterior laminate material of claim 1, wherein the exterior polymeric film layer is a thermoplastic elastomer.
3. The elastomeric exterior laminate material of claim 1, wherein said exterior polymeric film layer is hydrophobic.
4. The elastomeric exterior laminate material of claim 1, wherein said high resolution elastomeric exterior laminate material is integrated onto a grip surface of a product.
5. The elastomeric exterior laminate material of claim 4, wherein said grip surface includes one of a floor, a boat deck, a tool, or a firearm.
6. The elastomeric exterior laminate material of claim 1, wherein said ink graphic fabric layer is one of digitally, flexographic or gravure printed.
7. A method of making an exterior laminate material comprising: aligning an exterior polymeric layer with a printed fabric layer, wherein the printed fabric layer is an open weave fabric; heating the exterior polymeric layer; and pressing the exterior polymeric layer into the printed fabric layer.
8. The method of claim 7, wherein: aligning the exterior polymeric layer with the printed fabric layer comprising placing the exterior polymeric layer on top of the printed fabric layer in a heat press.
9. The method of claim 7, wherein: aligning the exterior polymeric layer with the printed fabric layer comprising feeding the exterior polymeric layer and the printed fabric layer through heated rollers.
10. The method of claim 7, wherein: pressing the exterior polymeric layer into the printed fabric layer comprises forcing the exterior polymeric layer to flow through the printed fabric layer.
Description
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0032] 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:
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
[0043]
[0044]
[0045]
[0046]
[0047]
[0048]
[0049]
[0050]
[0051]
[0052]
[0053]
[0054]
[0055]
[0056]
[0057]
[0058]
[0059]
[0060]
[0061]
[0062]
DETAILED DESCRIPTION OF THE INVENTION
[0063] While the making and using of various embodiments of the present invention are discussed in detail below, it should be appreciated that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not delimit the scope of the invention.
[0064] To facilitate the understanding of the embodiments described herein, a number of terms are defined below. The terms defined herein have meanings as commonly understood by a person of ordinary skill in the areas relevant to the present invention. Terms such as “a,” “an,” and “the” are not intended to refer to only a singular entity, but rather include the general class of which a specific example may be used for illustration. The terminology herein is used to describe specific embodiments of the invention, but their usage does not delimit the invention, except as set forth in the claims.
[0065] As described herein, an upright position is considered to be the position of apparatus components while in proper operation or in a natural resting position as described herein. Vertical, horizontal, above, below, side, top, bottom and other orientation terms are described with respect to this upright position during operation unless otherwise specified. The term “when” is used to specify orientation for relative positions of components, not as a temporal limitation of the claims or apparatus described and claimed herein unless otherwise specified. The terms “above”, “below”, “over”, and “under” mean “having an elevation or vertical height greater or lesser than” and are not intended to imply that one object or component is directly over or under another object or component.
[0066] The phrase “in one embodiment,” as used herein does not necessarily refer to the same embodiment, although it may. Conditional language used herein, such as, among others, “can,” “might,” “may,” “e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and/or states. Thus, such conditional language is not generally intended to imply that features, elements and/or states are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without operator input or prompting, whether these features, elements and/or states are included or are to be performed in any particular embodiment.
[0067] 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.
[0068]
[0069]
[0070]
[0071] 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.
[0072] As illustrated in
[0073] 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.
[0074] 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.
[0075]
[0076] 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
[0077]
[0078]
[0079]
[0080]
[0081]
[0082]
[0083]
[0084]
[0085]
[0086]
[0087]
[0088]
[0089]
[0090]
[0091]
[0092]
[0093]
[0094]
[0095]
[0096]
[0097]
[0098]
[0099]
[0100]
[0101] 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.
[0102] 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.
[0103] 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.
[0104] 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.
[0105] 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.
[0106] 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.
[0107] 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.
[0108] 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.
[0109] 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.
[0110] 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.
[0111] 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.
[0112] 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.
[0113] 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.
[0114] 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.
[0115] 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.
[0116] 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.
[0117] 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.
[0118] 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.
[0119] 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.
[0120] 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.
[0121] 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.
[0122] 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.
[0123] Experimentation has shown that the exterior layer will not reliably and sufficiently adhere to a printed film via lamination with heat and pressure or via an adhesive. To solve this issue, the printed layer was replaced with a printed open weave fabric. An open weave fabric is air permeable. The fabric may be knit, woven and/or include lycra in order to provide space for air (and the exterior polymeric layer) to flow between the fibers of the fabric. Heat and pressure based lamination flows the exterior layer through the open weave fabric, embedding the fabric in the exterior layer such that a mechanical bond is formed. These mechanically bonded layers may then (or simultaneously) be bonded to a base layer (e.g., boat flooring foam) via adhesive or heat and pressure.
[0124] 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.
[0125] This written description uses examples to disclose the invention and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
[0126] It will be understood that the particular embodiments described herein are shown by way of illustration and not as limitations of the invention. The principal features of this invention may be employed in various embodiments without departing from the scope of the invention. Those of ordinary skill in the art will recognize numerous equivalents to the specific procedures described herein. Such equivalents are considered to be within the scope of this invention and are covered by the claims.
[0127] All of the compositions and/or methods disclosed and claimed herein may be made and/or executed without undue experimentation in light of the present disclosure. While the compositions and methods of this invention have been described in terms of the embodiments included herein, it will be apparent to those of ordinary skill in the art that variations may be applied to the compositions and/or methods and in the steps or in the sequence of steps of the method described herein without departing from the concept, spirit, and scope of the invention. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope, and concept of the invention as defined by the appended claims.
[0128] Thus, although there have been described particular embodiments of the present invention of a new and useful HIGH RESOLUTION ELASTOMERIC EXTERIOR LAMINATE MATERIAL AND METHOD OF FORMING SAME it is not intended that such references be construed as limitations upon the scope of this invention except as set forth in the following claims