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The classic red rubber stamp that everybody is acquainted with will happen to be manufactured within a vulcanizing press. The first rubber stamp vulcanizing press was patented in 1890 by Charles Schultze in New Orleans USA. Vulcanizing is nowadays certainly one of the most expense effective approaches of making rubber stamps for mass made stamps. Every batch of stamps is developed applying a mould. This technique of manufacture is a lot more suited to stamp generating exactly where the same moulds are utilised over and over once again. Producing custom made stamps with a vulcanizing press requiring 'once only' moulds will drive the cost of manufacture up significantly.
Producing the mould - ahead of a mould is often created you have to have a master plate manufactured from metal or polymer, the master plate has the required relief (the artwork is raised) to produce an impression inside the mould. Possessing a master plate made every single time a mould is <a href="http://www.fr-beatbydre2012.com">Beats By Dre</a> necessary is what drives up the price of manufacture for vulcanized stamps. Pressing the master plate into a Matrix board creates the mould that could accept the rubber. Heat and pressure is applied for the master plate and matrix board inside a Vulcanizing press. The Matrix follows the shape of your relief provided by the master plate, this then hardens on cooling.
Making Rubber Stamps - Building stamps can be a easy procedure as soon as the mould is produced. Raw rubber stamp gum is placed on prime on the mould and after that placed inside the stamp press. Hydraulic pressure is placed upon the rubber and the mould from inside the stamp press causing the rubber to melt into the locations from the mould that include the pictures and text, curing and hardening takes about 10 minutes. When cured the sheet of rubber is pulled away from the mould and cut up into person stamps to be affixed to mounts.
Price of a vulcanizing technique is roughly $12,000 AUD
Benefits - Low price of production for mass produced stamps, fantastic ink transfer.
Disadvantages - Expense of creating master plates and moulds for custom produced stamps.
<b>Laser Engraved Rubber Stamps</b>
The traditional raw rubber used for vulcanizing stamp dies is rather unacceptable for the production of laser stamp dies, the laser process calls for an incredibly even thickness and blemish no cost surface to create an acceptable printed image from a stamp die. The rubber should also be subjected to a distinct curing approachjust before it could be exposed to the elevated temperature of a laser beam.
The depth with the engraving is determined by the laser speed, its wattage plus the density on the rubber. By way of example, a 50 or 100W engraver will engrave the rubber deeper and quicker than a 25W machine, which may well call for a second pass to attain a related outcome. Usually supplied in an A4 size sheet form, an excellent excellent laser rubber is necessary for engraving stamp dies and need to also have appropriate compression strength and ink transfer properties.
To assist the engraving approach, it's necessary to remove the excess dust that is constantly developed by the laser cutting action with an effective exhaust filtration program. As pretty few, if any, CO2 laser engraving machines had been initially objective built for engraving and cutting rubber, installing and keeping an effective dust extraction method pays lengthy term dividends. Mirrors, lenses and any exposed bearing surfaces must be cleaned thoroughly as element of a common upkeep program. Any neglect in this area will probably be detrimental to overall difficulty totally free laser operation, because the develop up of dust and residue will have an effect on operating efficiency and also the good quality on the completed stamp die. Lasers are controlled straight from a personal computer, the software package drivers supplied with lasers operate with quite a few graphic applications like CorelDraw.
Approximate expense of a 25 watt Laser suitable for stamp making is $40,000
Positive aspects - Production is computer system controlled, custom created stamps could be made easily
Disadvantages - High capital investment, upkeep expenses and running will likely be a great deal greater than vulcanizing or polymer strategies of manufacture.
<b>Liquid Polymer Rubber Stamps </b>
Converting rubber stamp polymer from a liquid into a solid to produce stamps is really fascinating. Polymer stamps are manufactured between two sheets of glass making use of precision controlled UV light which passes through a negative containing the stamp artwork solidifying the polymer. Negative production has been simplified together with the introduction of water based negative technologies, photographic chemical compounds for creating negatives are now a thing in the past.
The very first step in generating polymer rubber stamps would be to print your pictures, clipart or text onto Vellum, an nearly transparent paper like film. To produce superior stamp artwork it's essential to use a laser printer, inks from bubble jet printers are translucent allowing UV light to pass exactly where it should not. Water based negatives are simply washed out soon after getting exposed to get a couple of minutes within a UV exposure stamp machine.
Polymer contained in a sachet is now replacing the older cumbersome approach of making use of foam tape to create a dam and pouring of rubber stamp polymers, the sachets have also addressed the age old issue of removing air bubbles from the poured polymer.
The negative of your artwork and polymer sachet is sandwiched in between two sheets of glass spaced 2-3mm apart which is then exposed in the machine to get a few minutes. Once you've got completed the exposure it is actually a very simple course of action of cutting open the sachet and washing away the excess unexposed polymer prior to returning the stamp die back for the machine for a 10 minute curing. The moment the stamps are cured they are able to be cut up individually. Polymer sachets are readily available in a range of sizes up to A4 size.
Processing time is about 30 minutes for a batch of polymer stamps.
Cost of polymer stamp producing machines range from $3,500 AUD for an Australian produced unit created specifically for stamp creating up to high finish imported units with pc controlled washout for $15,000 AUD.
Positive aspects - Decrease capital investment, polymers make nearly clear stamps making them perfect for scrapbooking and card generating. Stamp relief will be quickly controlled for the duration of exposure.
Disadvantages - Early polymers didn't accept inks and also polymers offered today, this along with getting new technology induced initial resistance to polymer stamps.
<b>Summary</b>
Most large stamp producers possess a mix with the above gear. The unmounted rubber stamp dies created with any of those manufacturing approaches could be cut up and affixed to easy hand stamps, dater stamps or self inking stamps. Craft stamps are commonly affixed to wooden blocks or within the case of polymer stamps affixed to clear acrylic blocks with adhesives or InstaGrip mounting mat. Numerous manufactures produces stamp mounts. Astron Industries in Australia manufacturer the clear hand stamp 'Vuestamp' and also distribute the Perfect range of self inking mounts. Other brands of self inking mounts are Trodat, Colop and Shiny.
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