The present invention relates to indicia-containing labels. More particularly, the present invention relates to heat transfer labels containing variable data, which labels are applied to articles to provide unique markings, methods of making the labels and methods of using the labels.
Indicia and/or graphics-containing labels are in widespread use in most every industry. For example, labels are used in the garment industry to mark articles of clothing to identify the manufacturer, the size of the garment, to provide laundry instructions, composition of the fabric, manufacturing location information and the like. In such a marking, there is both fixed and variable data. The fixed data can include the manufacturer, manufacturing location and laundry instructions whereas the size of the garment and the composition of the fabric can be variable data.
Another market that uses labels is the durable goods market. In this market, labels may be used on, for example, hand held power tools. Such labels may include both fixed data, e.g., manufacturer's name and manufacturing location, and variable data, e.g., model number, serial number, and power (voltage and ampere) requirements.
One drawback to the use of individually printed labels (that is, labels with variable data) is that large inventories of completely finished pre-printed labels are needed at the manufacturing or packaging location. While this approach provides desirable information on an item-attached label, the large label inventory that is needed, in conjunction with the space necessary for storing such an inventory, makes this approach undesirable.
In addition, when such individualized or customized labels are used, they are maintained in large quantities in inventory. This increases the likelihood of label obsolescence. That is, there may well be a large quantity of completely finished labels in inventory when a product is changed or discontinued.
Accordingly, there is a need for a variable data heat transfer label that provides the flexibility to locally print variable, e.g., changeable data, immediately prior to applying the label to the item. Desirably, such a label includes some manner of fixed data and a transparent window in which the variable data is printed and through which the data is viewed when the label is affixed to an object or item.
A heat transfer label for application to an item includes a heat transferable substrate having a transparent window area. The substrate is carried on a carrier. The window area can be completely or partially transparent.
A variable graphic component including printed indicia is printed on the window area. The variable graphic component is printed separate from and subsequent to the application of the substrate to the carrier, but prior to application of the heat transfer label to the item.
Such a variable data heat transfer label provides the flexibility to locally print variable or changeable data immediately prior to applying the label to the item. A present label includes some manner of fixed data and a window area in which the variable data is printed, and through which the variable data is viewed after application to the item.
A method for marking an item includes providing a carrier web, applying a heat transferable substrate having a transparent window area to the carrier web to form an elongated coated web, printing a variable graphic component on the window area, printed separate from the step of applying the substrate to the web to form an elongated strip of heat transferable labels, transversely slitting the elongated strip of labels to provide item applicable labels and transferring the item applicable labels to the item.
These and other features and advantages of the present invention will be readily apparent from the following detailed description, in conjunction with the claims.
The benefits and advantages of the present invention will become more readily apparent to those of ordinary skill in the relevant art after reviewing the following detailed description and accompanying drawings, wherein:
While the present invention is susceptible of embodiment in various forms, there is shown in the drawings and will hereinafter be described a presently preferred embodiment with the understanding that the present disclosure is to be considered an exemplification of the invention and is not intended to limit the invention to the specific embodiment illustrated.
It should be understood that the title of this section of this specification, namely, “Detailed Description Of The Invention”, relates to a requirement of the United States Patent Office, and does not imply, nor should be inferred to limit the subject matter disclosed herein.
In the present disclosure, the terms article, item, object, and product are used interchangeably to describe something that is produced that has commercial value and is, for example, an item that is the subject of a commercial transaction.
Referring now to the figures and briefly, to
The present heat transfer labels 10 can be applied to an object (such as object 20 in
The carrier web 12 is typically a release-coated paper or plastic film. The release coating, indicated generally at 50 in
Each label 10 is formed with a transparent window area 26 and optionally fixed graphics 22. For purpose of the present disclosure, the term transparent means completely transparent, e.g., see-through, as well as partially transparent, e.g., translucent or capable of transmitting light to permit reading the imparted variable and/or fixed information through the window. Also for purposes of the present disclosure, the terms graphics, data and indicia are used interchangeably to indicate the fixed printing 22 of the label 10 or the variable printing 24 on the label 10. The fixed graphics 22 can vary depending on the object 20 that is being decorated with the label 10. For example, the labels 10 can include fixed data 22, such as a manufacturer's name, manufacturing location, logos, trademarks and the like.
If the object 20 has a rigid, e.g., plastic form, the window area 26 and fixed graphic 22 inks can be an acrylic, a vinyl, an epoxy, a polyester, a polystyrene or similar thermoplastic resin system. If the object is a fabric-based article, chemistries such as those disclosed in U.S. Pat. Nos. 4,256,795, 3,992,559 and 3,959,555 would be suitable for both the fixed graphics 22 and window area 26, which patents are incorporated herein by reference.
The entirety of the “printed” area forms the label 10. That is, the window 26 and the fixed graphics 22 (if used) that are printed on the web 12 constitute the label 10. In transferring the label 10 to the object 20, the adhesive layer 56 (shown as 156 in
Generally, the term “printing” connotes the application or transfer of colored or tinted indicia through the use of inks, dyes, pigments or the like. In the present label 10, the window 26 material is “printed” on the carrier web 12 without a pigment or tint, thus providing the characteristics of the transparent window area 26.
The fixed graphic 22 can be printed on top of or within the discrete window area 26 (as seen in row 14 in
In a preferred label 10, eye marks 28 are printed near the labels 10. These marks 28 can serve a variety of functions, such as providing a trigger for printing the variable graphic 24, for cutting the continuous roll of labels 10 into discrete single labels 10a,b,c (see
In another embodiment of the preferred label 10, the eye marks 28 are printed in the form of a two dimensional bar code. The two dimensional bar code can be used to trigger the variable data printing process, to verify the authenticity of the label 10, to control the form, text, graphics, and the like of the variable data printed on the label 10, to control the position and timing of the cutting process to produce single labels 10a, 10b, 10c or to optionally control the application parameters (time, temperature and pressure) used in applying that label 10 to article 20. The two dimensional bar code can have a 2D Matrix Symbol that is commonly used in the industry, for example, as represented by DataMatrix, MaxiCode and QR Code.
In another variant of the label 10, the machine readable eye marks 28a (
Referring to
The labels 10, as supplied, have the window area 26, the associated eye mark 28 and the optional fixed graphics 22. The fixed graphics 22 can be single or multiple color as desired by the article manufacturer.
The variable data 24 is printed on the window area 26 prior to applying the label 10 to the object 20. It is contemplated that the printing of variable data 24 will done at a different time and in a step separate from the printing of the fixed graphics 22 and window 26. In fact, it is anticipated that the variable data 24 will be printed at the article manufacturer's plant or at a nearby service facility using a variable data 24 printing process. The variable data 24 printing process can be carried out using ink jet, thermal transfer ribbon, ion printing and like printing processes.
An exemplary work flow process 1010 is illustrated generally in
The optional cross-linked top coat or high melt point composition can be applied to the release coat 1014. The top coat can be applied in a continuous manner, over the entirety of the web or in discrete regions on the web. Fixed graphics are then printed on the release coat or the optional top coat 1016. Eye marks are likewise printed along with the fixed graphics. A fixed graphic label is thus formed.
Following printing of the fixed graphics, optionally, a cross-linked clear layer or high melt point composition is applied over the fixed graphics 1018.
An adhesive layer is then applied over the cross-linked clear layer (if used) or over the fixed graphics 1022. The web is then slit to form lesser width labels 1024 (e.g., ribbons of labels), preferably single width labels, which are then fed into a printer to print the variable data or graphics 1026. An exemplary printer is commercially available from ITW Norwood of Downers Grove, Ill. under the trademark JAGUAR®. Following printing of the variable graphics, the individual labels are slit or cut 1028 and are applied to the desired goods 1030. Application of the labels to the goods or product can be carried out using, for example, a heat transfer press such as those commercially available from United Silicone, Inc., of Lancaster, N.Y.
This printing and application arrangement provides a number of advantages. First, in that the processes that require the completed labels (fully printed with both fixed and variable graphics) may require different quantities of labels, the variable data can be printed “as-needed” onto (fixed graphics) pre-printed labels. In addition, the variable graphics printing process is considerably faster (typically) than the transfer or application process. As such, the labels 10 can be printed on one printer, such as the JAGUAR® printer, and slit and distributed to a number of applicators, e.g., United Silicone, machines (for immediate or later use) to provide a cost effective and flexible process configuration. Other process configurations include having the printer and applicator integrated as taught in U.S. Pat. Nos. 5,813,772 and 5,658,647; however, in such an arrangement, the total capital (equipment) costs are higher.
In an ink jet printing process (not shown), the variable information is printed on the window area 26 using liquid inks dispensed in a controlled pattern, e.g., as small ink droplets ejected from a computer controlled ink jet printing nozzle. The inks used in this process are aqueous or organic solvent based inks. Suitable organic solvents include, for example, ketones, alcohols, esters, or hydrocarbons. Preferred solvents are low boiling point compounds including ketones such as acetone and methyl ethyl ketone, alcohols such as ethanol, iso-propanol and n-propanol, esters such as ethyl acetate and n-propyl acetate, and hydrocarbons such as heptane and toluene. Other organic solvent based inks will be recognized by those skilled in the art.
In another embodiment of the invention, the variable data is printed using a hot stamping apparatus 34 that uses interchangeable dies and an appropriate heat transfer ribbon 36. This process can be used when the variable data 24 does not have to change on each successive heat transfer label 10. The interchangeable dies can have the required specific variable data, such as size code, fabric composition, manufacturing location, SKU, bar code, and the like, and the die could be changed as required to print the required quantity of heat transfer labels 10 for each specific product. In this fashion, varying quantities of heat transfer labels 10 could be produced to meet production needs. The thermal ribbon 36 used in this process is such as that commercially available from ITW Coding Products of Kalkaska, Mich., ITW Norwood Marking Systems of Downers Grove, Ill., and ITW FoilMark of Newburyport, Mass. The specific source and grade of hot stamping ribbon 36 used in the invention will depend on the composition of the transparent window 26, the chemical and physical nature of article 10 to which it is being applied and the end use performance requirements of article 10. Suitable hot stamping apparatus 34 and dies are available from United Silicone of Lancaster, N.Y.
The ink jet inks can also be radiation curable, such as those printed by an ink jet printer and cured by radiation, such as ultraviolet light, electron beam or infrared radiation. In a preferred process, the ink is cured after printing on the discrete window area 26 by exposing it to radiation from a suitable source. Radiation curing transforms the liquid ink into a solid form. Typically, such radiation curable inks provide good resistance to smearing.
Still another process (not shown) for printing the variable data is laser marking, in which the variable data is established by removing material from the discrete window areas. In one process, the window areas are over-printed with a solid layer of colored ink during the original (fixed) printing of the label. The labels are then marked with the variable data by exposing the label to a laser capable of generating the required marks. When the graphics are to be viewed in what is referred to as a positive format, the marking involves the ablation (removal) of the colored ink in the non-image areas associated with the variable data.
Conversely, when the variable data is to be viewed in a reverse format, the image is developed by laser marking or engraving the data into the colored ink printed on the discrete window areas. In this instance, the colored ink is removed (ablated) to generate the image and non-image areas are left unchanged on the window areas.
Regardless of the manner in which the variable data 24 is printed, it is anticipated that a variable data 24 printing unit in a stand-alone configuration or as part of the application process will be used at the article manufacturer's facility.
In the stand-alone configuration, the variable data printing unit (such as the printing apparatus 34 of
Alternately, the variable data printing unit can be associated with the application machine. In this configuration, a roll of pre-printed labels is mounted on the printer-application machine, the labels are transported through the variable data printing unit where the variable data is printed, and then the labels are advanced into the application section of the machine for application to the article. Such a concept is disclosed in U.S. Pat. Nos. 5,658,647 and 5,813,772. In a variation of this concept, the label could be applied to the article first and then the article with the applied label is advanced into the variable data printing unit where the variable data is printed on to the already applied label.
In the label 110 of
Alternately as seen in the label 210 of
In another embodiment of the label 310, as seen in
In still another embodiment of the label 310, as seen in
It will be appreciated that the labels of
All patents referred to herein, are hereby incorporated herein by reference, whether or not specifically done so within the text of this disclosure.
In the disclosures, the words “a” or “an” are to be taken to include both the singular and the plural. Conversely, any reference to plural items shall, where appropriate, include the singular.
From the foregoing it will be observed that numerous modification and variations can be effectuated without departing from the true spirit and scope of the novel concepts of the present invention. It is to be understood that no limitation with respect to the specific embodiments illustrated is intended or should be inferred. The disclosure is intended to cover by the appended claims all such modifications as fall within the scope of the claims.
The present application is a continuation in part of U.S. patent application Ser. No. 10/742,297, filed Dec. 19, 2003.
Number | Date | Country | |
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Parent | 10742297 | Dec 2003 | US |
Child | 10855823 | May 2004 | US |