The present invention relates to adhesive tape products and more particularly to a consumer or stationery adhesive tape product comprising a roll of adhesive tape on a dispenser with a cutter for severing pieces of adhesive tape for use by the consumer.
Pressure sensitive adhesive tape products are widely used in packaging, in offices, in the home and elsewhere. Adhesive tape is often sold as a roll of many layers of tape wound on a cylindrical core. The core is often paper or plastic. One popular adhesive tape product comprises a dispenser having at least one side wall, a hub attached to the side wall, a roll of adhesive tape rotatably mounted on the hub and a cutter allowing an end user to remove selected lengths of adhesive tape from the roll of adhesive tape and cut them off for use. A frequently encountered version of this product has a plastic housing forming a side wall and hub and supporting a metal or plastic cutter. A roll of tape is supported on the hub. This product is sold as a disposable adhesive tape dispenser in many large retail stores. The product is often sold mounted on a paperboard merchandiser which is in turn mounted on horizontally extending pegs or upon shelves. A consumer purchases this product, removes at least a portion of the card board merchandiser and throws it away and retains the dispenser for use as needed. Tape is dispensed until the tape is exhausted and the dispenser is then discarded.
The above described example of an adhesive tape product is used widely by retail consumers and also used in office situations and elsewhere. Many people, retailers and organizations like the convenience and low cost of this product. There is no need to purchase an expensive, reusable dispenser. The product is compact and easy to use. The product is familiar. However, there are difficulties with this product. Once the tape is exhausted, the left over dispenser often includes several different components. There is a plastic housing, a tape core attached to the plastic housing which is either a paper core or a plastic core. If it is a plastic core, the core often has the appearance of being a different kind of plastic from the plastic used in the housing. The housing also usually has a cutter. Sometimes this cutter is merely a sharpened edged on the plastic housing. Sometimes this cutter is metal. A portion of the paperboard merchandiser is also often retained with the housing as one of the side walls. Thus, the finished product has components of different types and is therefore not easily recyclable. Because of this, it is often thrown in the trash.
Many consumers and business organizations are concerned with the creation of waste products and wish to minimize waste products by recycling. Recycling is encouraged by some governmental organizations and business organizations by the provision of recycling containers. Such containers are often marked to encourage deposit of particular recyclable items. Thus, a container may be marked for aluminum cans. Other receptacles are marked for paper recycling.
Some plastics are also recycled. Some plastic products are marked with a recycle marking including a number indicating the type of plastic as different plastics are recycled in different ways. Thus, various materials are often separated one from the other in a successful recycling effort. Products containing a mix of material are therefore difficult to recycle.
Most plastics are made from oil or natural gas. The excessive consumption of oil and natural gas is viewed negatively by many people. Many plastics do not easily degrade. When disposed of, for instance in a landfill, many plastics will retain their integrity for many years.
Consumers and retailers have also become conscious of the amount of packaging associated with a product. Moreover, packaging adds cost to a product. The handling of the packaging at the retail level adds costs to the distribution of a product. The handling and disposal of packaging by the consumer adds inconvenience to products.
The present invention contemplates a new and improved adhesive tape dispensing product which overcomes the above-referred to problems and others. The present invention provides a roll of tape on a tape dispenser which is inexpensive to manufacture, uses a minimum of packaging materials, provides a convenient tape dispensing experience to the consumer, and is easily recyclable upon the exhaustion of the tape.
Briefly stated, in accordance with the invention, there is provided an adhesive tape dispensing product comprising a dispenser having at least one side wall, the dispenser being adapted to support a roll of tape. A cutter is also supported by the side wall and is adapted to cut tape from the roll of tape. The tape dispenser, including the side wall and cutter, is exclusively, or for the most part, paperboard, molded pulp, molded cornstarch, polylactides, starch based polymers, other paper based material and/or combinations thereof. Upon the exhaustion of the length of adhesive tape, the adhesive tape dispensing product may be recycled as a paper recyclable. Variations of the invention include some removable non-paperboard elements, such as a plastic core which can be removed prior to recycling.
Further in accordance with the invention, the dispenser is biodegradable.
Further in accordance with the invention, the tape cutter is a non-metallic tape cutter having a hard edge comprised of molded cornstarch, polylactides, starch based polymers and/or other paper like material.
Yet further in accordance with the invention, the dispenser side wall, the dispenser hub (if present) and all parts of the dispenser are exclusively paperboard, molded pulp, polylactides, starch based polymers, and/or molded cornstarch or combinations thereof whereby the entire dispenser is recyclable as a paper recyclable.
Yet further in accordance with the invention, the tape core is polylactide or other starch based polymer or a paper tape core whereby once the body of tape is exhausted, the remnants of the roll of tape may be recycled as a paper recyclable.
Further in accordance with the invention, the merchandiser card is sometimes manufactured as part of the dispenser.
Further in accordance with the present invention, packaging is integrated into the dispenser portion of the product minimizing packaging costs, minimizing packaging, and making the packaging recyclable as a paper product by the consumer. The portion of the packaging, the display card, which can be separated from the dispenser, is easily recycled as a paper recyclable.
Applicants have found that a tape dispenser product comprised primarily of paperboard and molded pulp with the addition of a biodegradable polymer cutter is economical to manufacture, has a sufficient lifetime for its intended purpose, can be made so the dispenser is recyclable as a paper product and can be made so the dispenser is biodegradable.
If the dispenser is recycled, it may be entirely recycled as a paper product. if the dispenser is not recycled but discarded, and finds it way to a landfill, it will biodegrade as a paper/biodegradable material in a favorable manner and relatively short time.
If the tape core is also a paper or biodegradable polymer, preferably a polylactide, then the entire product residue after exhaustation of the tape is recyclable as a paper product and biodegradable.
It is a principle object of the present invention to provide an adhesive tape dispensing product which is inexpensive to manufacture, can be merchandised with a minimum of packaging, can be easily and conveniently used by the consumer as a source of discrete pieces of tape, and which can be easily recycled upon exhaustion of the tape.
It is a further object of the present invention to provide a recyclable adhesive tape dispensing product in which all or most of the elements except the adhesive tape itself are recyclable as paper recyclables.
It is still another object of the present invention to provide an adhesive tape dispensing product which has a familiar look to the consumer, which will be intuitively easy to use, and which is easily merchandisable.
It is another object of the present invention to provide a packaged adhesive tape dispensing product which introduces a minimum of materials into the waste product stream and uses a minimum of packaging.
It is another object of the invention to provide a tape dispensing product using a minimum of non degradable materials.
These and other objects and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments and from the accompanying drawings in which:
Referring now to the drawings wherein the showings are for the purposes of illustrating preferred embodiments of the invention only and not for the purposes of limiting same, the drawings show a variety of tape dispensing products having some unifying characteristics. One unifying characteristic is the choice of materials used. These materials will be described in more detail here to simplify the description of the structure of the preferred embodiments hereinafter.
Some elements of the preferred embodiments are paperboard elements. Paperboard is generally a planar material fabricated primarily from wood pulp, recycled paper and the like and having a thickness and stiffness greater than ordinary writing paper. Consumers sometimes refer to paperboard as cardboard. Examples of paperboard include the cards upon which many consumer products are mounted for display on hooks at retail stores. Paperboard is also often used for packaging of clothing items such as shirts, ties, blouses, and the like. Paperboard is recyclable as a paper product. Paperboard often bears pertinent information printed on one or both faces.
Corrugated board is another paper-based product consisting of two flat sheets of paper with a corrugated or “wavy” sheet of paper between them. The three sheets of paper are glued together forming a stiff board often seen as boxes. The three sheets of paper are often glued together by means of a glue based on cornstarch. Corrugated board is a paper product and is recyclable as a paper product. This includes the corn-based adhesive used to bind the paper sheets together.
Molded pulp is another packaging material often made from recycled paper products or other wood fiber material. Examples of molded pulp include egg cartons and beverage carriers often distributed at coffee shops and fast food outlets when a patron purchases more than two cups of coffee to go. Molded pulp products often have a thickness of 1/16 inch or greater and are relatively stiff. Molded pulp products are often used in place of foamed plastic in packaging and in other similar applications. Molded pulp products are recyclable as paper products. Paperboard, molded pulp and paper products are also biodegradable. In a favorable environment, paper products, such as paperboard and molded pulp will biodegrade in less than one year.
Cornstarch is a vegetable product which can be processed into food products, adhesives, and many other products. Cornstarch based adhesives are used in corrugated board. Therefore, cornstarch is an expected and accepted material in paper recycling.
Biodegradable polymers are commercially available. One group of biodegradable polymers is known as polylactides or polylactic acid polymers. These polymers are often made from vegetable based materials such as cornstarch. They are sometimes referred to as “PLA” polymers. These polymers may be fabricated into relatively stiff shapes capable of cutting such as disposable tableware. Products fabricated from these materials will maintain their physical integrity for reasonable periods of time until placed in an appropriate biodegradation environment, such as a compost facility, where the actions of bacteria and the like degrade the material primarily into water and carbon dioxide. In ideal situations, this breakdown can be completed in a matter of months.
Because PLA materials are based on cornstarch or other vegetable based materials (e.g. sugar cane) they do not chemically contaminate a recycle process. There are other similar biodegradable polymers including polyhydroxybutyrate but PLAs are the biodegradable polymer group for use in the present invention. Polylactide polymers are relatively expensive materials, especially when compared to paperboard and molded pulp.
The above described materials are used in consumer products throughout the United States and indeed the world. These products are commercially available from a number of sources. Paper and molded pulp products are relatively inexpensive and can be processed by many conventional means. Biodegradable polymers can also be fabricated in many conventional ways. These products, when not contaminated or mixed with improper elements, can all be recycled as paper products without disrupting the recycling process.
Referring now to the drawings, wherein like numerals refer to like parts throughout the several views,
The roll of tape 102 comprises the tape core 110 upon which is wound the length of adhesive tape 112 for dispensing. The length of tape is at least partially formed of pulp and cotton fibers. The tape core 110 is generally a cylinder of recycled paper, such as thick paperboard, or a plastic part with an outer cylindrical surface. Plastic tape cores are often used for stationery type transparent tape as a means of controlling telescoping. Paper tape cores are often used on wider tapes, such as two inch packaging tape; although, it should be appreciated that a paper core can be used with the depicted small size adhesive tape roll 102. In some exemplary embodiments, a plastic core may be used as it is easily separated from the remaining portions of the tape dispenser for recycling. However, it is contemplated that cores fabricated from recycled paper or PLA materials will have the shape and features necessary to address the telescoping issues normally addressed with a plastic core. Thus, it is contemplated to use both plastic cores and recyclable, biodegradable, PLA cores as well as paper cores for the roll of tape 102.
With reference to
The tape cutter 106 is fixed upon the cutter support 136 at its front edge. According to one aspect, the cutter is a rigid flat piece with a serrated sharp leading edge. When a user has dispensed a desired length of tape, the tape 110 is brought into contact with the tape cutter 106 and the tape piece or segment is cut off. The remaining end portion of the tape 110 will lightly stick to the surface of the tape cutter or the cutter support retaining the end of the tape ready for the next application. In the exemplary embodiment, the tape cutter 106 with a sharp serrated leading edge is made from recycled materials, such as sawdust and wood (e.g., bamboo) fibers; although other materials can be used. Any paper recyclable material resulting in a sharpenable rigid planar element capable of holding a sufficient edge to cut tape may be used. The tape cutter 106 can also be formed from a PLA material or another corn starch based recyclable material which can be recycled with paper. According to another aspect, the cutter can be integrally formed with the housing 104. Alternatively, a metal or other non-paper cutter may be placed on the cutter support 136 of the dispensing housing 104. When the tape is exhausted, this cutter can be ripped away from the rest of the tape dispenser 100, discarded as a mixed item, and the rest of the tape dispenser and tape core can be recycled as a paper product.
According to one aspect, the tape dispenser 100 can further comprise a side wall 150 formed of recycled paper. As shown in
The tape dispenser 100 is manufactured with the separate paperboard side wall 150 such that the merchandising display portion 154 is integral with and separable from the cover portion 152, which at least partially forms the dispenser housing 104. With this configuration, manufacturing costs and material part count are minimized. As shown in
Alternatively, as shown in
With reference to
As shown in
To form the tape dispenser 250, the roll of tape 252 is aligned in the second housing part 272 with the core 254 aligned with the openings 310, 312 in the side walls 306, 308. The two dimples 284, 286 pass through the openings 310, 312 and into the tape core 254 to loosely retain the roll of tape. This retention prevents the roll of tape from spilling out of the open top, but otherwise allows the roll of tape to freely rotate. The dimples are adhered to one another which holds the first and second housing parts and the roll of tape together. Similar to the previously described tape dispensers, tape dispenser 250 is entirely paper recyclable or almost entirely paper recyclable. In a completely recyclable implementation, the tape cutter 260 is fabricated from PLA polymers, or other materials which are recyclable as paper. The tape core 254 can be PLA or paper. The length of tape can be at least partially formed of pulp and cotton fibers. In a mostly recyclable implementation, either a plastic or metal tape cutter is used and a plastic tape core is used, both of which can be removed from the paperboard dispenser for recycling.
Adhesive tape dispensers comprised of housing and merchandising elements fabricated from paper and paper-like materials and biodegradable polymers have been described in numerous implementations. The products provide a convenient, familiar tape dispenser to consumers with the advantages of conventional tape dispensers plus the advantage of recyclability of the merchandising materials and dispenser once the tape is fully dispensed. Biodegradability is also provided Plastic elements and metal elements are minimized or avoided entirely. Easily recyclable paper based elements are used at every opportunity.
The exemplary embodiment has been described with reference to the preferred embodiments. Obviously, modifications and alterations will occur to others upon reading and understanding the preceding detailed description. It is intended that the exemplary embodiment be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Number | Date | Country | Kind |
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PCT/US2008/055639 | Mar 2008 | US | national |
This application claims priority to and the benefit of the filing date of International Application No. PCT/US2008/055639, filed 3 Mar. 2008, which application claims priority to and the benefit of the filing date of U.S. Provisional Patent Application Ser. No. 60/894,103, filed 9 Mar. 2007, and U.S. Provisional Patent Application Ser. No. 60/894,137, filed 9 Mar. 2007, all of which are hereby incorporated by reference into the specification of this application.