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Plastic with Rubber keypad | P+R Keypad
Plastic with Rubber keypad, also known as P+R Keypad, Plastic Rubber Keypad, Plastic Silicone Keypad, Plastic Key Cap etc., P means Plastic, and R means Rubber. As the name suggests, P+R Keypad is a combination of plastic parts and silicone parts.
P+R Rubber keypad, generally the Plastic Key Cap with the production process of plastic injection molding/two shot overmolded, color-coating, printing, laser engraving/cutting and punching, so that can prompt the plastic key caps become different colors and fonts&symbols&characters, which will enhance the value of Plastic with Rubber keypad products. And the silicone rubber keypad are produced by compression molding, then assembly & bonding the Plastic Key Cap and silicon rubber keypad by glue.
Plastic Rubber Keypad are mainly apply to IA products, remote control, calculator, camera,telecommunication equipment, home appliance, handheld instruments etc.
Plastic Key Cap’s Commonly used Material are ABS, ABS+PC, PBT, PC, PMMA&Acylic, POM etc.,
There Are Some Different Way of Making the Plastic Surface Symbols & Legends & Characters & Icons
- Front Coated or Backed Coated + Laser Etching Illuminated P+R Keypad
1.To painting /coating different colors on the front surface of plastic key caps.Then laser etching it on the front side of the plastic keypad.
2.Painting or coating different colors under the backed side of the plastic button cap, then carry out laser engraving on the back of the plastic button where it were sprayed.
Laser etching plastic key cover is what we usually call laser engraving. This process is the same as the laser cuting the rubber keypad for backlit effect, which use laser engraving technology to burn black grooves on the keycaps. Since the engraved strokes have dots and lines, if you look closely at the printed strokes, you can easily spot the sunken strokes with burnt marks. The laser-etched writing is light in color, and you can feel the scratches on the plastic keypad cap text when you touch it. Laser etching P+R process is popular is that it is more environmentally friendly, so basically the output of laser etching plastic keycaps is about ten times that of other process plastic rubber keycaps.
Plastic with Rubber keypad with laser etching process has the advantages of long life and low cost, so laser cutting P+R Rubber keypad currently the most common character technology in the P+R keyboard market.
- Silkscreen Printing (Plastic with Rubber keypad without backlight effect)
The principle of silk screen printing P+R rubber keypad is to cover a blank plastic keyboard with a special silk screen, hollow out the areas with writing, and then scrape the ink across it, so that the writing will be printed on the hollowed out parts.
Although the cost of screen printing of the plastic silicone keypad is lower, compared with the laser etching P+R keypad process, the plstic keycap life is much shorter, and it is more common on lower-cost membrane keyboards. Screen printing + UV coating plastic rubber keypad is also a very common keycap process for thin films. It is to cover a layer of UV coating on the basis of screen printing, and its lifespan is longer than that of screen printing. Moreover, screen printing plastic key cover is mostly used on notebook plstic keycaps, so screen printing is currently extremely popular.
- Dye Sublimation P+R keypad
Compared with the above laser engraving& silkscreen printing P+R keypad processes, the cost of dye-sublimation is much more expensive! The dye-sublimation process is completely different from ordinary ink printing on the plastic key caps. Dye-sublimation does not use common liquid dye inks, but solid resin inks. The solid resin inks will sublime at high temperatures and then penetrate into the plastic keycaps. Desublimation occurs, and the thermal sublimation process forms a whole on the surface of the physical layer of the P+R keycap, so it has better gloss and firmness. Moreover, resin inks are inherently better in terms of gloss, shape, etc.
Although the sublimation process characters on the plastic silicone keypad are more three-dimensional and more durable, due to its high cost, it is basically only used in high-end Plastic with Rubber keypad in mass-produced keyboards.
- Hollow Out the Characters/Legends on the Plastic with Rubber keypad
The biggest advantage of hollow out fonts on the plastic key cover is their own light transmission effect. This process is common in backlit plastic keyboards, but the surface of the plastic keycaps is easily worn.
Hollow Out the Characters/Legends method is mainly used on ABS material keycaps, because ABS keycaps have good light transmission, so the keyboard can only use this method if it wants to create a backlight effect. The transparent or translucent keycaps are covered with opaque paint to facilitate the characters to form hollow seals. The light on the shaft is scattered through the characters to form a backlit Plastic with Rubber keyboard effect.
- Two Shot + Overmolded/ Two-color molded P+R Keycaps
The process of two-color molded plastic keycaps is more complicated and the cost will be higher. Generally speaking, Two Shot + Overmolded P+R keypad process uses the mold to mix two plastic materials of different colors together, and uses two plastic colors to display characters. The color of the plastic keycap characters of this process is very bright, durable, and can be used very well.
To ensure the feel of the P+R keycap, in addition to the above advantages, another point is that the characters on the surface of the plastic keypad are also very well integrated with the keycap itself, and the characters are not easy to wear. However, precisely because of its high cost, this two shot / overmolded P+R keypad is generally used on mid-to-high-end keyboards.
Plastic with Rubber keypad | P+R Keypad
Plastic with Rubber keypad, also known as P+R Keypad, Plastic Rubber Keypad, Plastic Silicone Keypad, Plastic Key Cap etc., P means Plastic, and R means Rubber. As the name suggests, P+R Keypad is a combination of plastic parts and silicone parts.
P+R Rubber keypad, generally the Plastic Key Cap with the production process of plastic injection molding/two shot overmolded, color-coating, printing, laser engraving/cutting and punching, so that can prompt the plastic key caps become different colors and fonts&symbols&characters, which will enhance the value of Plastic with Rubber keypad products. And the silicone rubber keypad are produced by compression molding, then assembly & bonding the Plastic Key Cap and silicon rubber keypad by glue.
Plastic Rubber Keypad are mainly apply to IA products, remote control, calculator, camera,telecommunication equipment, home appliance, handheld instruments etc.
Plastic Key Cap’s Commonly used Material are ABS, ABS+PC, PBT, PC, PMMA&Acylic, POM etc.,
There Are Some Different Way of Making the Plastic Surface Symbols & Legends & Characters & Icons
- Front Coated or Backed Coated + Laser Etching Illuminated P+R Keypad
1.To painting /coating different colors on the front surface of plastic key caps.Then laser etching it on the front side of the plastic keypad.
2.Painting or coating different colors under the backed side of the plastic button cap, then carry out laser engraving on the back of the plastic button where it were sprayed.
Laser etching plastic key cover is what we usually call laser engraving. This process is the same as the laser cuting the rubber keypad for backlit effect, which use laser engraving technology to burn black grooves on the keycaps. Since the engraved strokes have dots and lines, if you look closely at the printed strokes, you can easily spot the sunken strokes with burnt marks. The laser-etched writing is light in color, and you can feel the scratches on the plastic keypad cap text when you touch it. Laser etching P+R process is popular is that it is more environmentally friendly, so basically the output of laser etching plastic keycaps is about ten times that of other process plastic rubber keycaps.
Plastic with Rubber keypad with laser etching process has the advantages of long life and low cost, so laser cutting P+R Rubber keypad currently the most common character technology in the P+R keyboard market.
- Silkscreen Printing (Plastic with Rubber keypad without backlight effect)
The principle of silk screen printing P+R rubber keypad is to cover a blank plastic keyboard with a special silk screen, hollow out the areas with writing, and then scrape the ink across it, so that the writing will be printed on the hollowed out parts.
Although the cost of screen printing of the plastic silicone keypad is lower, compared with the laser etching P+R keypad process, the plstic keycap life is much shorter, and it is more common on lower-cost membrane keyboards. Screen printing + UV coating plastic rubber keypad is also a very common keycap process for thin films. It is to cover a layer of UV coating on the basis of screen printing, and its lifespan is longer than that of screen printing. Moreover, screen printing plastic key cover is mostly used on notebook plstic keycaps, so screen printing is currently extremely popular.
- Dye Sublimation P+R keypad
Compared with the above laser engraving& silkscreen printing P+R keypad processes, the cost of dye-sublimation is much more expensive! The dye-sublimation process is completely different from ordinary ink printing on the plastic key caps. Dye-sublimation does not use common liquid dye inks, but solid resin inks. The solid resin inks will sublime at high temperatures and then penetrate into the plastic keycaps. Desublimation occurs, and the thermal sublimation process forms a whole on the surface of the physical layer of the P+R keycap, so it has better gloss and firmness. Moreover, resin inks are inherently better in terms of gloss, shape, etc.
Although the sublimation process characters on the plastic silicone keypad are more three-dimensional and more durable, due to its high cost, it is basically only used in high-end Plastic with Rubber keypad in mass-produced keyboards.
- Hollow Out the Characters/Legends on the Plastic with Rubber keypad
The biggest advantage of hollow out fonts on the plastic key cover is their own light transmission effect. This process is common in backlit plastic keyboards, but the surface of the plastic keycaps is easily worn.
Hollow Out the Characters/Legends method is mainly used on ABS material keycaps, because ABS keycaps have good light transmission, so the keyboard can only use this method if it wants to create a backlight effect. The transparent or translucent keycaps are covered with opaque paint to facilitate the characters to form hollow seals. The light on the shaft is scattered through the characters to form a backlit Plastic with Rubber keyboard effect.
- Two Shot + Overmolded/ Two-color molded P+R Keycaps
The process of two-color molded plastic keycaps is more complicated and the cost will be higher. Generally speaking, Two Shot + Overmolded P+R keypad process uses the mold to mix two plastic materials of different colors together, and uses two plastic colors to display characters. The color of the plastic keycap characters of this process is very bright, durable, and can be used very well.
To ensure the feel of the P+R keycap, in addition to the above advantages, another point is that the characters on the surface of the plastic keypad are also very well integrated with the keycap itself, and the characters are not easy to wear. However, precisely because of its high cost, this two shot / overmolded P+R keypad is generally used on mid-to-high-end keyboards.