CN1064960A

CN1064960A - Coloured thermal-resistant label and manufacturing process thereof

Info

Publication number: CN1064960A
Application number: CN 91101667
Authority: CN
Inventors: 杨志华; 王振兰
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-20
Filing date: 1991-03-20
Publication date: 1992-09-30

Abstract

The present invention relates to a kind of coloured thermal-resistant board, it is to be the sheet base with the aluminium sheet, duplicate with metal oxide pigment and to form, its manufacturing process is that operations such as character pattern, baking fixation, chemical oxidation are handled, printed to the board face, baking temperature is no more than the fusing point of aluminium, adopt alkaline chemical solution in the chemical oxidation operation, oxidation 5-60 second in 70-100 ℃.The present invention has high temperature resistance, nondiscolouring, wear-resisting, sun-proof, anti-corrosion, character pattern is clear, attractive in appearance, cost is low, easily characteristics such as processing are specially adapted to be in and use on the product under the hot environment, are a kind of comparatively ideal coloured thermal-resistant labels.

Description

Coloured thermal-resistant label and manufacturing process thereof

The present invention relates to a kind of coloured thermal-resistant label and manufacturing process thereof, be specially adapted to be on the product under the hot environment and use.

Common label is common on products such as machinery, electrical equipment, and it indicates the signs such as performance, model, power, the date of production and producer of product.The kind of label is a lot, divide from plate sheet base, aluminium flake base, copper sheet base, aluminium platinum paper and scraps of paper base are arranged, divide, plane and concave-convex type are arranged from type, divide from color, water-soluble chemical raw material and paint pigment are arranged, and the shortcoming of above label is: coloured not high temperature resistance, and colourless protruding board sense of vision is poor, not attractive in appearance yet, be unsuitable for being on the product under the hot environment and use.

The objective of the invention is to overcome weak point of the prior art, a kind of wear-resisting, anti-corrosion, high temperature resistant, nondiscolouring, cost are low, the coloured thermal-resistant label and the manufacturing process thereof of easy processing and provide.

The object of the present invention is achieved like this: the sheet base of this label is the aluminium flake base, and it is smooth, it is variegated to be difficult for getting rusty, to be difficult for producing, and label pigment is the printing ink that synthesizes with metal oxide and varnish.The oxide that its metal oxide colorant is cobalt oxide, chromium oxide, di-iron trioxide, cuprous oxide, antimony oxide, nickel (wherein cobalt oxide is that brown, cuprous oxide is purple for red, antimony oxide for oxide yellow, nickel for blue, chromium oxide for green, di-iron trioxide).Have characteristics such as wear-resisting, anti-corrosion, high temperature resistant, nondiscolouring.

Manufacture method of the present invention and technological process are: (1) board face is handled: make its surface form trickle husky hole, be convenient to painted; (2) print character pattern: with literal, pattern photomechanical production, use metal oxide pigment offset printing or serigraphy by designing requirement then on the aluminium flake base, or the multiple film of transfer printing is attached on the aluminium flake base; (3) baking fixation: baking temperature is at 500-620 ℃, and optimum temperature is 570-600 ℃, slowly reduces to about 50 ℃ after 5-10 minute and comes out of the stove, and this moment, there was certain gloss on the surface, and adhesion is extremely strong; (4) scrubbing: use the ground pumice brushing, remove the oxide stain; (5) space of a whole page chemical oxidation: the aluminium board is immersed in the alkaline chemical solution, being formulated as of alkaline chemical solution contains natrium carbonicum calcinatum 30-50 gram in every liter of alkaline chemical solution, contain synthetic detergent powder 10-15 gram, contain NaOH 3-5 gram, oxidation 5-60 second under the temperature in 70-100 ℃; (6) surface passivation is handled: with content is the chromium trioxide aqueous solution of 10-20 grams per liter, and passivation 5-15 is water flushing oven dry after second, and bake out temperature can not surpass 50 ℃, and passivation is in order further to improve protective capacities against corrosion; (7) punch and cut.

The present invention has high temperature resistance, and nondiscolouring is wear-resisting, and sun-proof is anti-corrosion, and character pattern is clear, attractive in appearance, and cost is low, and characteristics such as easy processing are specially adapted to be in a kind of comparatively desirable coloured thermal-resistant label that uses on the product under the high temperature, also can replace common label.

The drawing explanation of accompanying drawing:

Accompanying drawing is a technological process block-diagram of the present invention

Embodiment is described in further detail below in conjunction with (accompanying drawing):

Embodiment 1, with the example that is fabricated to of blue character pattern thermal-resistant label, as shown in drawings: the aluminium sheet face is handled, earlier by dimensional requirement, cut aluminium flake, be stained with the scrubbing of ground pumice brushing with brush then, and produce trickle husky hole, after water washes down the plate face again, it is stand-by to dry moisture, selects for use the cobalt oxide colorant with grinding the printing ink (metal oxide colorant) that oil is modulated into modest viscosity; The printing word pattern, select for use the method for offset printing or serigraphy to be printed directly on the aluminium flake base, then with the oven dry of 40-50 ℃ temperature, treat to put into behind the oil abrasion layer bone dry baking box and slowly be warming up to about 600 ℃ and toast, keep slowly reducing to about 50 ℃ after 5-10 minute and come out of the stove; Then dip in the ground pumice brushing with brush, remove the oxide stain, flushing then is with every liter 40 gram of natrium carbonicum calcinatum, every liter 15 gram of synthetic detergent powder, the basic anhydride liquid that every liter 4 gram of NaOH is made into carries out chemical oxidation, when this liquid is heated to 90 ℃, the aluminium board is put into this liquid immersion 5-60 (determine soak time according to the design needs second, then soak 5-15 second as need white, the then immersion 15-60 second strong as the need corrosion stability), take out immediately, water washes down raffinate; Pending oxidative work-up, i.e. Passivation Treatment.Passivating solution is the chromium trioxide aqueous solution with the 10-20 grams per liter, and the aluminium board is put this liquid into and at room temperature is dipped into 5-15 and takes out flushing after second, dries with 50 ℃ temperature, driedly afterwards punches with tapping and plugging machine, and cuts according to size with rolling an edition machine, is finished product.

The production process of embodiment 2, green thermal-resistant label is identical with the program of embodiment 1, just colorant is selected for use burning chromium colorant to add varnish and is modulated into printing ink, with silk screen or offset printer on a kind of synthetic resin film, after treating face ink lay drying, film is taken off, be attached to again on the aluminium flake base (, on the aluminium plate surface, be coated with one deck earlier and contain 30% alcohol water blend not before the pad pasting at aluminium plate, so as to paste closely smooth.), to toast after to be dried, its operation and technological requirement are identical with embodiment 1.

Make versicolor label, its method for making is identical, it is the colorant difference of selecting, as make blueness and then select cobalt oxide for use, make green and then select chromium oxide for use, make the brown di-iron trioxide of then selecting for use, make redness and then select cuprous oxide for use, make yellow and then select antimony oxide for use, make purple and then select oxide of nickel etc. for use, character pattern is replicated in 2 kinds of methods on the aluminium plate, a kind of is that offset printing or silk screen machine directly are printed on the aluminium plate, and it is to the material requirements strictness, and another kind is that the multiple film of transfer printing is on aluminium plate, method is as described in the embodiment 2, and versicolor label all can use above-mentioned two kinds of methods.

Claims

1, a kind of coloured thermal-resistant label comprises sheet base and pigment, it is characterized in that the sheet base is an aluminium sheet, and pigment is metal oxide and the synthetic printing ink of varnish.

2, coloured thermal-resistant label according to claim 1 is characterized in that the metal oxide colorant is the oxide of cobalt oxide, chromium oxide, di-iron trioxide, cuprous oxide, antimony oxide, nickel.

3, a kind of method of making the described coloured thermal-resistant label of claim 1, comprise operations such as the board face is handled, printing character pattern, baking fixation, chemical oxidation, it is characterized in that toasting in the fixation operation baking temperature at 500-620 ℃, adopt alkaline chemical solution in the chemical oxidation operation, in 70-100 ℃, oxidation 5-60 second.

4, the manufacture method of coloured thermal-resistant label according to claim 3, the optimum temperature that it is characterized in that toasting fixation is 570-600 ℃.

5, the manufacture method of coloured thermal-resistant label according to claim 3 is characterized in that containing in every liter of alkaline chemical solution natrium carbonicum calcinatum 30-50 gram, contains synthetic detergent powder 10-15 gram, contains NaOH 3-5 gram.