The specific embodiment
As shown in Figure 1, be that two kinds of surface of steel plate pattern transfer-printing methods of the present invention specifically are applied to the process chart that colored elevator decorative sheet is made.It comprises:
(1) design of personalized pattern and making
Because the height of elevator door and wallboard is all more than 2000mm, it is still quite clear so ready-made pattern will accomplish to be amplified to high 2000mm, can satisfy user's personalization hobby again, be unlikely basically, so the design of personalized pattern and to make also be one of key of the present invention.The design of personalized pattern and making can be adopted following several source and method:
A, drafting rough sketch, rough sketch can be to make in advance or according to the special rough sketch made from various styles of customer requirements, but the size of the height and width of rough sketch own can not adopt high accuracy specialty scanner that rough sketch is changed into the computer picture file less than 1000mm and 500mm respectively after rough sketch is finished.
B, utilize ready-made picture, picture can be that original copy also can be a print pictures, but the size that guarantees the original copy picture can not be less than 1000mm * 500mm, and the size of print pictures can not preferably adopt the goodish art paper offset printing of printing quality less than 400mm * 200mm.After determining, adopt by picture high accuracy specialty scanner that picture is changed into the computer picture file again.
C, take pictures, photo can be scenery such as the landscape, flowers according to customer requirements, adopt the digital camera of high pixel or 120 slr cameras to take, the digital camera of use must be the above special digital cameras of 1,300 ten thousand pixels, take finish after with changing into of digital photograph computer document; 120 slr cameras that use must be to adopt reversal film to take, and with high accuracy specialty scanner rough sketch are changed into the computer picture file after shooting is finished.
D, computer drawing, the utilization professional software is made picture in computer, require picture height * wide size is set to 2000mm * 1000mm respectively, and resolution ratio is set to more than the 100dpi;
E, utilize ready-made computer picture file, require picture when being set to 2000mm * 1000mm, tangible netting twine, picture point not to occur, apprehensive and hazy sensations can not be arranged.
(2) personalized pattern is carried out preliminary treatment in computer.
Because elevator decorative sheet, all be to use the occasion of close-ups when waiting for or taking elevator, therefore can reach 2000mm respectively except the size of the height and width of the original image that requires to be used for to make personalized pattern and more than the 1000mm, also require picture quite clear, tangible flaw, netting twine, picture point can not appear, apprehensive and hazy sensations can not be arranged,, make it reach operable requirement so also personalized pattern must be carried out preliminary treatment in computer.The appearance and size that is used for each elevator decorative sheet in addition all may be not of uniform size, also needs the dimension of picture in the computer is adjusted, and it is just matched with the appearance and size of elevator decorative sheet.
According to the separate sources of computer picture file, do following the processing respectively:
A, will change into rough sketch, picture or the digital photograph of computer document, in computer, carry out the adjustment of color, brightness and contrast with professional picture process software, make it to meet the requirement of transfer printing process, also to repair simultaneously flaws such as the spot that may influence aesthetic feeling on the picture, inferior points, require picture is carried out certain cutting and editor according to reality then, set corresponding size.
B, will in computer, carry out the adjustment of color, brightness and contrast, and picture be carried out certain cutting and editor, set corresponding size according to the reality requirement by computer drawing computer picture file that form or ready-made with professional picture process software.
(3) print setting with professional wide cut spray-drawing printer driver software
The drive software that general printer driver software and printer carry can not satisfy requirements such as color management, have only with professional wide cut spray-drawing printer driver software and just can accomplish to require to print setting according to different pattern colors, could be correctly to speed, the mode printed, go out the China ink amount and color error ratio carries out appropriate adjustment, make it reach true to nature and the most desirable printing effect.
(4) on wide cut spray-drawing printer, personalized pattern is printed on the heat-transferring printing paper with dispersed heat sublimation ink
The selection of printer, dispersed heat sublimation ink and printing paper is extremely important, and at first because the elevator decorative sheet that relates to requires clear patterns, color soft, it is less important to possess certain high speed and key element cheaply, to be applicable to industrial production.
A, printer must be selected wide cut spray-drawing printer for use, and must support dispersed distillation ink, require to have at a high speed, the performance of clear and economy;
B, ink are selected the dispersed ink of heat sublimation for use, require sublimation temperature low, and particles of ink is ultra-fine nanoscale;
The Alhue paper that C, transfer paper select for use hot transfer printing to use, it is few to require to have the blotting amount, anti-high temperature more than 200 ℃.
(5) the elevator sheet metal machine-shaping of plate (elevator door and sedan-chair wall)
By the requirement of drawing, by cut, dash, corresponding sheet metal processing such as folding, make elevator with the complete moulding of plate.
(6) elevator is handled with surface finish and oil removing, rust cleaning, the phosphatization of plate
With in type elevator with plate carry out surface finish and oil removing, rust cleaning, phosphatization is handled, with guarantee coating can and the metal surface combine closely.
(7) the elevator electrostatic spraying and the baking of plate panel background color coating
By electrostatic spraying the polyester molding powder is adsorbed on elevator with the surface of plate, puts into baking oven then, between 175~185 ℃ of the baking temperatures, 15~25 minutes time, make the molding powder vitrifying, be solidificated in metallic surface and form the background color coating.For attractive in appearance, can all carry out the background color coating with two surfaces of plate to elevator.
(8) the elevator electrostatic spraying and the baking of the panel clear coat of plate
By electrostatic spraying the polyester transparent molding powder is adsorbed on elevator with (only spraying the one side that needs pattern transferring) on the background color coating of plate surface, put into baking oven then, between 175~185 ℃ of the baking temperatures, 15~25 minutes time, make molding powder form vitrifying, be solidificated on the background color coating and form clear coat.
(9) transfer paper that will be printed on pattern overlays on elevator with on the plate, and fixes, and selects for use resistant to elevated temperatures adhesive tape that transfer paper is fixed, in case displacement during the spline seal, and produce the figure blooming.
(10) with hold down gag charged ladder is fitted tightly with plate and the patterned transfer paper that covers thereon
Elevator generally is the cuboid (seeing Fig. 5,6) that is flat with plate, thus can not adopt the method for concora crush up and down, because this method can not make elevator stressed with two sides of plate, so can't make two side transfer printings to pattern.As shown in Figure 2, be the work schematic diagram of vacuum type hold down gag.Hold down gag is by two holddown belts 5 up and down, about fastening bolt 1, link 2, the vacuum pumping hole 3 of two sides, support 4 constitutes, and surrounds an air bag in the middle of hold down gag, holddown belt 5 adopts silicon rubber to make, and the elevator that is covered with transfer paper 6 is placed in the air bag with plate workpiece 7.As shown in Figure 3, when air bag is evacuated, the silicon rubber holddown belt is pressed on the outer surface of elevator with plate, transfer paper and elevator are fitted tightly with the plate surface, and can change along with the local concavo-convex variation on workpiece 7 surfaces, make the elevator can both be evenly stressed, thereby guarantee to make pattern can be transferred to elevator fully with on each surface of plate with any surface of plate.Vacuum pressure is controlled at 150~170mmHg.
The present invention can also be by adopting the clad type hold down gag, as shown in Figure 4, this device is made up of holddown belt 8 and the tightening device that connects its two end, tightening device by about the link 13 of two side symmetries, fastening bolt 9, the check lock lever 11 of lock bracket 10 and connection left and right sides lock bracket 10 and lock plunger 12 constitute, holddown belt 8 and tightening device surround the ring-type of a sealing, the workpiece 7 that is covered with transfer paper 6 is placed in this closed circular, by regulating check lock lever 11 and lock plunger 12, holddown belt 8 is tightened up, make transfer paper be adjacent to elevator with front and two sides of plate, thereby guaranteed to make pattern to be transferred to elevator fully with on the front of plate and two sides.
(11) put the elevator under the impaction state into high temperature oven baking transfer printing with plate and transfer paper
Make the dispersed ink on the pattern produce heat sublimation by high temperature, make it to be penetrated into transparent molding powder coating, thereby finish the transfer printing of pattern.Baking temperature is controlled between 175~185 ℃, 3~6 minutes time.
(12) will take out with plate through the elevator that the baking transfer printing is finished, and transfer paper is peeled off rapidly.Peel off the gloss that transfer paper can guarantee the pattern transferring surface as early as possible.
(13) spray varnish and baking after the elevator that will be printed on pattern is cleaned out with plate.Transfer paper is peeled off the back surface of the work and is still had the paper wadding remaining, dips in the clear water that takes a morsel with fur towel it is cleaned out, surface varnish glazing protection then.
(14) the colored elevator that will finish coats with diaphragm with plate.
Preferred embodiment 1:
The manufacturing of the hoistway door of band personalized colorful landscape pattern, specification: the high * distance=2100mm that the opens the door * 900mm of door.
According to the landscape requirement of user's appointment, adopt the single anti-digital camera of specialty of Kodak " DCS Pro SLR/n " 1,400 ten thousand pixels to carry out shoot on location.The resolution ratio of camera must be adjusted to largest image size (14MP) during shooting, and, under bright light, adopt little aperture (more than 16) to take, to guarantee shooting quality with the fixing camera of tripod.
After shooting is finished digital photograph imported computer and changing into computer picture file TIF form, picture is carried out the adjustment of color, brightness and contrast with picture process software Photoshop, and after according to actual needs picture being done certain cutting, finishing and editor, dimension of picture is set to 2135mm * 980mm size, and resolution ratio is set to 100dpi.
Picture is printed setting with PhotoPrint4.0 large format spray-drawing software, to color error ratio and speed, the mode printed, go out print parameters such as Mo Liang and carry out appropriate adjustment.According to the requirement of this illustration case, after color error ratio was adjusted, the print parameters of printer was set to: 4pass/ is two-way/at a high speed/and 720x720dpi/ China ink amount 60%, to reach true to nature and the most desirable printing effect.
For guaranteeing print quality and transfer printing effect, select MIMAKI JV4-160 wide cut spray-drawing printer for use, it is the heat sublimation ink of INK-MATE, particle ultrafine nanometer that dispersed heat sublimation ink is selected the trade mark for use, six kinds of colors are arranged, look number is respectively: TY-119, TLM-134R, TB-127R, TLC-139R, TM-135R, TC-145R are printed on the personalized pattern of finishing on the hot transfer ink jet printing paper.
Select the thick common cold-rolled steel sheet of 1.5mm for use, according to 2 of the size blankings of 2120mmx615mm, then through sheet metal machine-shaping.
The door-plate of moulding is carried out surface finish and oil removing, rust cleaning, phosphatization are handled, select for use the polyester molding powder of white that it is carried out two-sided electrostatic spraying, advance the baking oven baking-curing again, form the background color coating, baking temperature on the door-plate surface: 185 ℃, the time: 15 minutes; Select for use transparent polyester molding powder promptly to need the one side of pattern transferring to carry out the electrostatic spraying second time then, the baking oven baking-curing of going forward side by side, 185 ℃ of baking temperatures, 15 minutes time to the front of moulding door-plate.The model of the polyester molding powder of more than selecting for use is: Interpon600, the look of white polyester molding powder number are: JA053Z, the look of transparent polyester molding powder number are: VP188.
The transfer paper that is printed on pattern with completing is cut apart with a knife or scissors along center line, two transfer papers are overlayed on two door of elevator to be transferred respectively then, fix with resistant to elevated temperatures adhesive tape again, adopt the silicon rubber air bag vacuum suction method shown in Fig. 2,3, transfer paper tightly is attached to the outer surface of whole door of elevator, make all faces of door of elevator can both be evenly stressed, put whole hold down gag and door of elevator under Fig. 3 state into high temperature oven, the pattern that makes transfer paper by thermal dye sublimation transfer printing to workpiece.The vacuum pressure here is 170mmHg, and baking transfer printing temperature is 180 ℃, 3 minutes time.
To take out from air bag through the door of elevator of baking at last, and transfer paper is peeled off rapidly.After the elevator that will be printed on pattern is again cleaned out with plate, spray coating varnish and baking-curing.The workpiece that to all finish with diaphragm covers and packages at last.
Preferred embodiment 2:
The manufacturing of the hoistway door of band personalized colorful Chinese realistic painting personage pattern, specification: the high * distance=2100mm that the opens the door * 1000mm of door.
According to the Chinese realistic painting figure painting on the picture album of being selected from of user's appointment, adopt Heidelberg " ChromaGraphS3900 drum type scanner " to scan.The picture album dimension of picture that is scanned is: 200mm * 500mm, its original work rough sketch is of a size of: 800mm*2000mm, major parameter is during scanning: scaling 140%/scanning accuracy 350dpi/ density 2.1.
After scanning is finished picture file is saved as the TIF form, picture is carried out the adjustment of color, brightness and contrast with picture process software Photoshop, and after according to actual needs picture being done certain cutting, finishing and editor, dimension of picture is set to 2135mm * 1080mm size, and resolution ratio is set to 100dpi.
Picture is printed setting with PhotoPrint4.0 large format spray-drawing software, to color error ratio and speed, the mode printed, go out print parameters such as Mo Liang and carry out appropriate adjustment.According to the requirement of this illustration case, after color error ratio was adjusted, the print parameters of printer was set to: 4pass/ is two-way/at a high speed/and 720x720dpi/ China ink amount 50%, to reach true to nature and the most desirable printing effect.
For guaranteeing print quality and transfer printing effect, select MIMAKI JV4-160 wide cut spray-drawing printer and dispersed heat sublimation ink (superfine nano grade particles for use, the trade mark is INK-MATE, look number is respectively: TY-119, TLM-134R, TB-127R, TLC-139R, TM-135R, TC-145R), the personalized pattern of finishing is printed on the hot transfer ink jet printing paper.
Select the thick common cold-rolled steel sheet of 1.5mm for use, according to 2 of the size blankings of 2120x665mm, then through sheet metal machine-shaping.
The door-plate of moulding is carried out surface finish and oil removing, rust cleaning, phosphatization are handled, select for use the polyester molding powder of white that it is carried out two-sided electrostatic spraying, advance the baking oven baking-curing again, 180 ℃ of temperature, 20 minutes time; And then select for use transparent polyester molding powder promptly to need the one side of pattern transferring to carry out the electrostatic spraying second time to the front of moulding door-plate, advance the baking oven baking-curing again, 180 ℃ of temperature, 20 minutes time.The polyester molding powder of more than selecting for use is identical with embodiment 1.
The transfer paper that is printed on pattern with completing is cut apart with a knife or scissors along center line, respectively two transfer papers are overlayed on two elevators to be transferred then with on the plate, fix with resistant to elevated temperatures adhesive tape again, adopt clad type hold down gag as shown in Figure 4, make transfer paper be close to all outer surfaces of door of elevator.Put whole hold down gag and door of elevator shown in Figure 4 into high temperature oven, make pattern on the transfer paper by thermal dye sublimation transfer printing to door of elevator, 180 ℃ of baking transfer printing temperature, 3 minutes time.
Door of elevator through baking is taken out and transfer paper will be peeled off rapidly, after the door of elevator that will be printed on pattern is again cleaned out, spray coating varnish and baking-curing, the workpiece that will all finish with diaphragm covers and packages at last.