CN102285212B

CN102285212B - Method for reducing abrasion of resin relief printing plate

Info

Publication number: CN102285212B
Application number: CN 201110183730
Authority: CN
Inventors: 蔡振淮; 庄迺忠; 龚立鹏
Original assignee: Guizhou Xiniuwang Printing Co Ltd; Shantou Dongfeng Printing Co Ltd
Current assignee: Guizhou Xiniuwang Printing Co Ltd; Shantou Dongfeng Printing Co Ltd
Priority date: 2011-07-01
Filing date: 2011-07-01
Publication date: 2013-09-11
Anticipated expiration: 2031-07-01
Also published as: CN102285212A

Abstract

The invention provides a method for reducing abrasion of resin stencils in a process of hot-printing and concave-convex embossing. The method comprises a step of arranging an isolating layer capable of being periodically exchanged between a relief printing plate of a bottom steel plate of a gold-blocking die cutter and a printing article, wherein the isolating layer is a plastic thin film which has the thickness of 0.125 to 0.35 mm and does not deform at the temperature of 70-100 DEG C. According to the method provided by the invention, under the condition without influencing the quality of printed articles, the direct contact between the resin relief printing plate and paper can be avoided, the abrasion to the resin relief printing plate caused by the paper is maximally reduced, the service life of the resin relief printing plate is greatly prolonged and the time for correcting the plate is greatly saved; and in addition, with the adoption of the method provided by the invention, a set of resin relief printing plates which can hot-emboss 150,000-20,000 pieces originally can hot-emboss over 1,500,000 pieces at present, thus the cost is greatly saved.

Description

A kind of method that reduces the resin relief wearing and tearing

Technical field

The present invention relates to a kind of gilding technology, relate in particular to a kind of gold stamping technology of carrying out simultaneously with embossing, more specifically relate to a kind of method that in thermoprint and embossing operation, reduces the wearing and tearing of resin template.

Background technology

Gold stamping is by the effect of heating power and pressure the aluminium coated above the electrochemical aluminum foil to be transferred to the stock surface to form special metal effect; Embossing claims the embossing printing again, be that printed matter surface is decorated a kind of special process technology in the processing, during printing, do not use printing ink but utilize two templates of negative and positive, apply certain pressure by platen, make printed matter base material generation plastic deformation, impress out the pattern with stereoeffect thereby reach at printing product surface; In existing cigarette-brand manufacturing process, combine with embossing gold stamping often, make product more can demonstrate strong decorative effect.Fast development along with printing technology, thermoprint and embossing can carry out simultaneously, it is stereo gilding, it is to utilize corrosion or engraving technology that gold stamping and the protruding picture and text of indentation are made former intaglio plate and a formpiston relief printing plate that cooperates up and down, realize the gold stamping and one step completed technical process of embossing technology, obtain having the goods of cubic metal characters or patterns effect pattern or font.

Former also claims die, is the masterplate that metal material is made, and is installed on the cellular board of gold-stamping die-cutting machine; Formpiston also claims punch, is installed on the end steel plate of gold-stamping die-cutting machine; In hot pressure when seal,, cellular board is positioned on the paper, in connect heating power supply and be connected with elevating mechanism, end steel plate is positioned under the paper, relative fixed.In order to make in the hot pressure seal process, electrochemical aluminum foil and paper are better fitted, and punch adopts usually has certain flexible resin making masterplate.In the making of cigarette-brand, because the literal of hot pressure seal is little, add that now in order to reduce cost, the paper class of use is lower, filler is on the high side in the paper, the paper resin relief that in hot pressure seal and moving process, very easily weares and teares, cause the life cycle of resin relief short, 15 to 200,000 on general hot pressure seal just needs to change once, and the expense of a cover resin relief is in 2000-3000 unit, this has not only increased production cost, and has increased the time of a large amount of schools version.

Summary of the invention

For solving the problem of above existence, the purpose of this invention is to provide a kind of method that in hot pressure seal operation, reduces the resin relief wearing and tearing.

For realizing above purpose, the method of minimizing resin relief of the present invention wearing and tearing is: between the resin relief of steel plate at the bottom of the gold-stamping die-cutting machine and stock an interlayer that can regularly replace is set, this interlayer adopts thickness to be 0.125mm-0.35mm and to be the plastic sheeting that deformation does not take place under 70-100 ℃ in temperature, plastic sheeting is to become some strips to arrange along the direction that resin relief is arranged, and the width of each strip plastic sheeting slightly wide and two ends is fixed in the dual-side of end steel plate than the width of resin relief.

Because plastic sheeting can be subjected to the effect of heating power and pressure in the process of hot pressure seal, so select for use plastic sheeting must have good performance, namely endurable thorn, rub resistance, heatproof and chemical-resistance are good, therefore above-mentioned plastic sheeting preferred polyester film.

Because a large amount of discarded electrochemical aluminum-based films that contain a small amount of aluminium coated are arranged in gold stamping process, though the temperature of thermoprint is 150-160 ℃, but have only 70-80 ℃ through the temperature that is delivered to plastic sheeting behind the paper, so in the process of hot pressure seal, a small amount of aluminium coated on the discarded electrochemical aluminum-based film can't break away from basement membrane and stain the space of a whole page of resin relief, and this aluminium coated as thin as a wafer, substantially do not influence the thickness of basement membrane, in order can to reach twice laid, to save cost, above-mentioned plastic sheeting preferably adopts the discarded electrochemical aluminum-based film after gold stamping.

Above-mentioned stock is paper or cardboard.

Because in the process of hot pressure seal, be in the effect that plastic sheeting between resin relief and the paper is subjected to heating power and pressure equally, so must change behind the hot pressure seal certain hour, if produce continuously, the time of periodic replacement is 24-30 hour.

The present invention reduces the method for resin relief wearing and tearing, one plastic sheeting interlayer is set between resin relief and stock paper, because film thickness has only several person of outstanding talent's rice at zero point, and it is indeformable under the temperature and pressure of hot pressure seal, punch still can be with the paper that passes to of its literal and clear patterns by film, and the resin punch is owing to there is the existence of film, avoided contacting with the direct of paper, reduce paper to greatest extent to the wearing and tearing of resin punch, prolong the service life of resin relief greatly, also saved the time of a large amount of schools version.Though method of the present invention is simple, but can obtain beyond thought effect, by add a cover the plastic sheeting of thin and heat resisting and pressure resisting at resin relief, make a cover resin relief from can bringing up to now and can hot pressure print more than 1,500,000 by ten thousand of 15-20 of hot pressure seal originally, save cost greatly.In addition, plastic sheeting of the present invention can adopt in the gold stamping process discarded electrochemical aluminium film, need not the increase expense, turns waste into wealth, and is a not only good method of environmental protection but also economically valuable.

Description of drawings

Fig. 1 is the structural representation of steel plate at the bottom of the gold-stamping die-cutting machine of the present invention.

Fig. 2 is the structural representation of each parts in the hot pressure seal process.

The specific embodiment

Be the end steel plate 1 of making the gold-stamping die-cutting machine for cigarette-brand as shown in Figure 1, the resin relief 11 that fixedly has several rows to be arranged in parallel on the end steel plate, minimizing resin relief abrasion method of the present invention, it is the PET film 12 that covers some strips in the direction that the space of a whole page of resin relief is arranged along resin relief, the two ends of PET film are fixed on the end steel plate with adhesive sticker or transparent adhesive tape, and the width of PET film is slightly wideer than the width of resin relief.

As shown in Figure 2, be positioned on the stock paper 2 is the metal intaglio plate 31 that is fixed on the cellular board 3, between paper and metal intaglio plate, it is electrochemical aluminum foil 4, being positioned under the paper is resin relief 11, it is PET film 12 between paper and resin relief, during the hot pressure seal, cellular board heating power and moving down is exerted pressure, metal intaglio plate and resin relief are closely cooperated, at this moment, the aluminium coated of electrochemical aluminum foil bottom surface is transferred to paper surface, resin relief is impressed into pattern or literal on the paper by the PET film, because the PET film can be subjected to the effect of heating power and pressure in hot pressure seal process, so will change behind the hot pressure seal certain hour, if produce continuously, changed once in general 24-30 hour.

Because electrochemical aluminum foil is the basement membrane that contains a small amount of aluminium coated after thermoprint, this basement membrane is the very excellent PET film of performance, and the temperature that the hot pressure seal time is delivered to below the paper generally has only 70-80 ℃, this temperature can not make aluminium coated break away from basement membrane and stain the space of a whole page of relief printing plate, thereby utilize through the discarded electrochemical aluminium film after the thermoprint as the interlayer between resin relief and the paper, be optimal method.

Claims

1. one kind is reduced the method that resin relief weares and teares, this method is: between the resin relief of steel plate at the bottom of the gold-stamping die-cutting machine and stock an interlayer that can regularly replace is set, this interlayer is that thickness is 0.125mm-0.35mm and is the 70-100 ℃ of plastic sheeting that deformation does not take place in temperature, plastic sheeting is to become some strips to arrange along the direction that resin relief is arranged, and the width of each strip plastic sheeting slightly wide and two ends is fixed in the side of end steel plate than the width of resin relief.

2. the method for minimizing resin relief according to claim 1 wearing and tearing, it is characterized in that: described plastic sheeting is polyester film.

3. the method for minimizing resin relief according to claim 1 wearing and tearing is characterized in that: described plastic sheeting is the discarded electrochemical aluminum-based film after gold stamping.

4. according to the method for claim 2 or 3 described minimizing resin relief wearing and tearing, it is characterized in that: described stock is paper or cardboard.

5. according to the method for claim 2 or 3 described minimizing resin relief wearing and tearing, it is characterized in that: the time of described periodic replacement is 24-30 hour.