The present application is related to the teachings of commonly assigned co-pending U.S. Design Pat. No. D492,485 S issued on Jul. 6, 2004, by Agnes Csilla Domotor et al. for DECORATION FOR BAGS AND CASES, which are expressly incorporated herein by reference.
1. Field of the Invention
This invention relates to bags, portfolios, padfolios and other business accessories, and more particularly, to customized decorations applied to such items and the application of such decorations.
2. Background Information
It is often desirable to apply decorative printing to cases, bags, portfolios and other business accessories. These items, often crafted from natural or synthetic leather, may carry a predefined location for applying a decoration. In a common application, the decorative printing consists of a promotional logo (e.g. a company trademark or trade name) and/or the owners name or monogram. Where a decoration is applied in bulk to a line of business accessories by a vendor, the decoration may be manufactured ahead of time by applying the decoration to an appropriate patch or substrate. This decorative substrate is then subsequently bound to the item using adhesives or stitching. The substrate may be a patch formed from a soft plastic or rubber compound with a painted or molded color pattern on its outer surface.
However, where a separately formed substrate or patch is used, the business accessory must often undergo a final construction step to attach the decoration-bearing substrate its outer surface at the appropriate location. This takes time and necessitates that a ready inventory of both business and decorated substrates be kept on hand for final finishing. If a customer purchasing decorated business accessories wishes to change the decoration, or increase the size of the order beyond the number of decorated substrates in stock, then the order must be delayed until a new stock of decorated substrates is received from a manufacturer. Clearly, the use of pre-manufactured decorative patch or substrate may limit manufacturing speed and flexibility for vendors of business accessories and their responsiveness to changing customer wishes.
This invention overcomes the disadvantages of the prior art by providing a decoration for bags, cases, portfolios and other business accessories (the “item”) that can be printed at an appropriate location directly on the otherwise-finished item. The decoration comprises a single or multi-colored ink image transferred from a lithographic plate using a transfer pad. The underlying tag or “substrate” for the decoration is a smooth-surfaced soft polyvinylchloride or rubberized material with appropriate ink-receptive or attractive characteristic—such as a matte or semi-gloss surface finish.
A procedure for applying the decoration includes (a) placing the item on a supporting surface in a pad printing device so that the substrate is restrained within a registration jig; (b) inking a decorative image formed on an etched plate; (c) contacting the inked image with the pad to transfer the ink to the pad in the form on the decorative image; and (d) moving the printing pad so that it is aligned with the jig and directing its printing stroke onto the restrained substrate. As each item is printed, it is removed from the support and a new, undecorated item is replaced on the support.
The procedure for producing a decorated bag can include the provision by the customer of a decorative logo or other design by photograph, sample or electronic image (using, for example, e-mail or a World Wide Web link). Information regarding the number and type of items to be decorated is also provided. The design is enlarged or reduced to the appropriate size using compute-aided graphics applications. Alternatively, photographic or photocopier-based resizing techniques. The side is made to fit the substrate by this technique. The image is then projected onto a photosensitive plate and etched with an etching solution according to using conventional photo-etching techniques. The plate includes a registration hole or slot for proper alignment with the printing machine. After decoration, items are forwarded to the requesting customer.
In one embodiment, the substrate is secured by cords to a side of the item. The substrate is constructed from a pliable material, such as rubberized polyvinylchloride, with custom ink decoration applied thereto. The opposing ends of the substrate include tabs that are secured around each of opposing cords. Likewise, a substrate can be secured along an edge of an item by adhesives or stitching. This edge can be that of an outer pocket.
The invention description below refers to the accompanying drawings, of which:
Outboard of the inking section 110 is located an item support base 114 according to an embodiment of this invention. The item support base 114 supports the item to be decorated. In this illustrative embodiment, the item is an exemplary bag or case bag 120. The exemplary bag 120 is constructed from woven fabric, natural or imitation leather or any other acceptable material, and includes a central substrate 122 provided on a front face 124 of the bag 120, and secured to the face 124 by four elastic cords 126 that are anchored through grommets in the side of the bag. This substrate is described in the above-referenced co-pending U.S. Design Pat. application Ser. No. 29/182,660, the teachings of which are expressly incorporated herein by reference. In this embodiment, a pair of moving actuators 130 and 132 carry, respectively, an inking pad 134 and a printing pad 136. As described below, each actuator is capable of movement horizontally (double arrow 140) along the overhanging beam 104 and vertically (double arrow 142), perpendicular to the beam's direction of outboard extension from the pylon. In this example, the horizontal stroke of the actuators along the beam is adjustable between approximately 4 and 8 inches. The vertical stroke is adjustable to approximately 5 inches.
As will be described further below, an exemplary printing machine can be adapted to accommodate a multiplicity of colors, each typically provided as separate etched formation on the plate 112. In this instance, each etched formation on the plate 112 is inked by a separate (individually colored) section of an inking pad and, may printed by a separate portion of the printing pad 136. The horizontal stroke is adjusted so that the proper ink pad and printing pad locations strike the proper etched formation of the plate to generate the desired overall multi-color image.
With further reference to
Attached to the rear (inboard side) of item support plate 220 is an upright member 240 having, at its uppermost edge, a jig assembly 242. The jig assembly 242, according to this embodiment, is shown in further detail in
With further reference to
With reference now also to
Also with reference to
The exemplary printing process described further below relates to printing of a single-color decoration. However, the process to-be-described can be repeated so as to produce multi-colored decorations. Briefly, once a plate is exposed to a particular light pattern it is etched by rinsing it in a corrosive bath or wash. The bath or wash corrodes the areas that have been exposed to light because the photo-resist has undergone a chemical change in those areas so as to be susceptible to the etching solution. Alternatively, the photo-resist is not susceptible to decomposition in areas that have not been exposed to light. The decomposed areas become a well into which ink can be driven by the pad 134 for transfer to a smooth printing pad 136. This process is generally termed “offset” printing since the printed pattern is offset from the plate onto an intermediate pad 136 that performs the actual printing. As noted above, where multiple colors are printed, the movement of the printing pad 136 is programmed to strike each formation at the appropriate place, and in the appropriate order, so as to lift the desired ink pattern and transfer it to the substrate. Notwithstanding the foregoing description of a photo-etched plate, it is contemplated that any type of printing plate that permits transfer of ink selectively to a printing pad can be employed. Such plates can include plastic printing plates with a coating that becomes selectively ink-resistant and ink-attractive based upon to selective exposure to light, etc. The term's “photolithographic plate” and/or “printing plate” should, therefore, be taken broadly to include a variety of print-transfer plates that interact with an offset printing pad. Additionally, while an offset printing process is described herein, in an alternate embodiment, the printing formation can also be provided directly to an appropriate printing pad that is simply inked, and applied to the substrate so as to print the desired decoration in the manner of a stamp.
Having described an exemplary arrangement for a pad-printing device according to an embodiment of this invention, a procedure for pad-printing a substrate with an appropriate decoration will now be described in detail. Referring to
In
Having mounted the bag,
Next, in
In
Finally, in
In
In
As noted generally above, the substrate generally consists of a rubberized polyvinylchloride with, typically, a matte or otherwise non-glossy surface. To this surface is provided an ink mixture suitable for such materials. These ink compositions are commercially available, and can consist mainly of the following compounds:
This composition includes appropriate pigments and is commercially known as ink type PGNT, available from Trans Tech America, Inc. of Carol Stream, Ill.
This ink can be combined with appropriate thinners and retarders. A commercially available thinner from Trans Tech America, Inc. is known as Thinner B and includes butyl acetate, xylenes, cyclohexanone and 1-methoxy propylacetate-2 in appropriate concentrations. Likewise, a commercially available retarder is known as Retarder TPD available from Trans Tech America, Inc. and includes 65–75% ethyldiglycolacetate along with 25–30% aromatic hydrocarbons.
A composition of inks and substrates can be varied, and those described above are only exemplary variety of combinations. Likewise, the placement and shape of substrates and substrates and printed decorations can be highly varied. Additional wells and retaining devices can be applied to a jig assembly for holding such substrates or substrates in place for appropriate registration during printing.
Having described the mechanism and generalized procedure by which printing of customized decorations on bags, cases or other business accessories occurs, reference is now made to
In step 1704, the vendor receives the order and confirms that the type and number of customized cases can be provided. This may involve a check of inventory and/or outside suppliers of undecorated items for availability. Assuming the order can be filled, the vendor then manipulates a transmitted copy (or previously stored copy) of the decoration for printing on the selected item(s). The image of the decoration is thereby appropriately sized and scaled to fit within the confines of the desired substrate. This scaling can be performed using a commercially available graphic arts software application, or using conventional photo enlargement or reduction techniques.
Next, in step 1706, the vendor projects a version of the desired, properly scaled decoration onto a photolithographic plate. This can be accomplished by any number of a variety of conventional exposure techniques. The exposed plate is etched to create the ink-attractive surface and then readied for use in the printing machine. Next, in step 1708, the plate is mounted in the printing machine. One or more colors are loaded onto an inking pad and the appropriate jig is set. Where only a few different types of substrate are used, there may be dedicated machines, each having a dedicated jig for that particular type of substrate. Otherwise, the machine is provided with the appropriate jig.
In step 1710, the selected items are made ready for printing (being received from a supplier or brought forward from the stock room) and are supplied to the printing machine for printing, in serial fashion. Again, printing may involve application of a single color, or application of multiple colors involving transfers from different etched features, each carrying a different ink color.
Finally, when all or acceptable portion of the order is fulfilled, the completed, decorated items are forwarded to the customer. It is contemplated that the above procedure 1700 can be varied to account for different circumstances. For example, a customer may require that a certain case be printed with several different available decorations, requiring changes in the plate and/or ink during the production run. Similarly, the customer may require the same decoration printed on a variety of different products, requiring different machines and/or jigs to be used a various times. Likewise, decoration artwork can be provided in a variety of ways including physical samples from which art is rendered by the vendor and then scaled appropriately for transfer to a plate.
It should be clear that the system and method for printing custom bags, cases and other business accessories described above allows maximum versatility in the order customization process. The customer or vendor need not pre-order a large quantity of pre-decorated substrates for later application to items—rather the vendor can supply on-demand exactly the number of decorated bags needed with no excess. In other words, these decorated items can be produced on-demand by the vendor out of a stock of standardized items having a pre-defined printing area. If, during the order process, the customer wishes to change the size of the order or change the decoration, he or she is free to do so without need to obtain a different or increased supply of decorated substrates.
The foregoing has been a detailed description of illustrative embodiments of the invention. Various modifications and additions can be made without departing from the spirit and scope of the invention. For example, the printing machine shown and described is exemplary only and a variety of printing machine models and types can be employed. Likewise, the particular bags and cases shown are exemplary only and the techniques applied herein can be applied to other forms of business accessories that include an appropriate substrate. Accordingly, this description is meant only to be taken by way of example and not to otherwise limit the scope of the invention.
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