CN201120765Y

CN201120765Y - Circularly pressing and scalding color-printing group with photoresist coating unit

Info

Publication number: CN201120765Y
Application number: CNU2007201050465U
Authority: CN
Inventors: 张胜; 张国昌; 张华�
Original assignee: YUXI YUCHENG SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: YUXI YUCHENG SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2007-09-28
Filing date: 2007-09-28
Publication date: 2008-09-24
Anticipated expiration: 2017-09-28

Abstract

The utility model relates to a round pressing and round hot stamping unit with a glue spreading unit, which belongs to the field of package printing equipment. A glue spreading unit is additionally provided in front of the prior hot stamping unit., the application of the glue spreading unit adopts that the graph-text is stamped on the surface of paper by using glue, after drying hot stamping transfer is carried out in the hot stamping unit and on the not sized alumite, then a gold stamping pattern determined by a glue graph-text is obtained on the paper surface. The utility model overcomes the difficulty of the prior hot stamping art, and can realize the technologies of positioning hot stamping, topping hot stamping, shadow tone level transitional hot stamping, online post-hotting stamping or post-stamping hotting with high-precision, and the manufacturing expense of the hot stamping plate is reduced.

Description

A kind of circle with coating unit is pressed circle thermoprint colour cell

Technical field

The utility model belongs to the packaging printing machines field, and the circle that relates to a kind of paper is pressed the circle hot stamping equipment.

Technical background

In packages printing industry, for the top grade of pursuing packaging product, luxurious, use thermoprints in a large number in the typography, obtained effect preferably.Circle presses the circle thermoprint to be widely used in the paper hot stamping process; its process characteristic is that printing plate roller and roller platen all are the circle roller; non-substrate surface the patterned surfaces by printing plate roller on of face of undertaking the printing of of paper by roller platen surface, electrochemical aluminium; implement hot stamping process by two rollers to pressing, turning round continuously; the pairing electrochemical aluminothermic trans-printing of pattern on the printing plate roller to paper, so the efficient height, is adapted to large-scale production.

The electrochemical aluminium that existing circle presses the circle hot stamping process to use, during production the mode with the real end, full version on its transfer face, coat PUR in advance, pay the printing house after, the glue that utilization coats in advance can directly be implemented hot stamping process.Therefore, existing circle is pressed on the circle hot stamping equipment does not have coating unit.

In recent years, because of market demand, typography has produced some new technical needs, as: the high accuracy cover scalds, the transition of halftoning level is scalded etc.But existing circle pressure circle thermoprint mechanism is owing to be subjected to the thermal deformation of printing plate roller and the influence of printing plate roller making precision, and the boiling hot precision of cover is not high; When cover scalds the hemorrhage position of technological requirement because of folded boiling hot repeatedly, cause that electrochemical aluminium transfer effect is poor, product quality is restive.In addition, the electrochemical aluminium that existing hot stamping process uses when producing real end precoating full version PUR, implement thermoprint by on the printing plate roller, being made into halftoning level transition pattern, because of being subjected to the restriction of technological temperature scope and force of impression scope, can not stablize the gold stamping pattern that obtains the transition of halftoning level, so thermoprint was shifted at the bottom of prior art can only be carried out reality, can't realize halftoning level transition hot stamping process.

Technology contents

The cover that the utility model exists at existing thermoprint technology scald precision not high, folded scald transfer effect poor, can not realize a difficult problem such as halftoning level transition thermoprint, break the normal procedure the coating process of electrochemical aluminium is put in the printing production line and finish, press the circle thermoprint for circle a kind of brand-new process program is provided.

The utility model is made up of coating unit and hot stamping unit, and hot stamping unit is installed in after the coating unit; Wherein coating unit mainly is made up of glue spreader, roller platen, drying box etc.; Hot stamping unit mainly is made up of printing plate roller, roller platen, electrochemical aluminium feeding machanism, electrochemical aluminium receiving mechanism etc.Coating unit can be mode of printings such as flexo, gravure or offset printing, and its function is to apply glue at the paper correspondence position that needs the thermoprint picture and text; Its function of hot stamping unit is to implement heat transfer printing by hot pressing electrification aluminium, and needed picture and text are transferred on the paper.The utility model is that required picture and text gluing is carried out on the paper surface of undertaking the printing of, and employed electrochemical aluminium does not need gluing, is different from existing hot stamping process.

The functional characteristics of the utility model critical piece is as follows: glue spreader is a forme roller, according to the mode of printing that is adopted, make by the picture and text feature of printing surface, its function is glue picture and text on the paper surface printing of undertaking the printing of, can the put into effect end or the printing of halftoning level; Drying box can adopt modes such as heated-air drying, infra-red drying, and its function is dry glue; The printing plate roller is the basic element of character of implementing heat transfer printing, existing circle pressure circle printing plate is the relief printing plate by actual diagram text manufacture, printing plate of the present utility model is simplified to a rectangle to each picture and text and makes, the size of rectangle should can cover picture and text at least, for the paper surface of avoiding undertaking the printing of produces visible impression, four of rectangular boss jiaos and seamed edge will be done the fillet processing on the version; The function of electrification aluminium feeding machanism for heat transfer printing provide an amount of, with the electrochemical aluminium of paper of undertaking the printing of with speed; The effect of electrification aluminium receiving mechanism is to tidy up the electrochemical aluminium defective material that was used.

Technological process of the present utility model is as follows: the paper of undertaking the printing of is come out after roller enters coating unit by a last operation, and in the time of between process glue spreader and the roller platen, glue picture and text in the printing enter the drying box drying then, enter hot stamping unit again; Electrification aluminium is exported by electrochemical aluminium feeding machanism, and the paper of undertaking the printing of enters between printing plate roller and the roller platen simultaneously, under suitable temperature and pressure effect, make electrochemical aluminium press the picture and text feature and adhere to the paper of undertaking the printing of at impression, it is separated to leave undertake the printing of behind the impression point paper and electrochemical aluminium, required picture and text part is transferred on the paper of undertaking the printing of by electrochemical aluminium, and the defective material of electrochemical aluminium enters the rewinding of electrochemical aluminium receiving mechanism, the paper of undertaking the printing of is finished thermoprint and entered subsequent processing.

The innovative point of this utility model is: one, coating unit and hot stamping unit combine and finish the thermoprint operation, and the coating unit gluing is on the paper of undertaking the printing of, and employed electrochemical aluminium does not need gluing; Two, need the diagram text manufacture of thermoprint transfer on glue spreader, utilize the advantage of gravure, flexo and offset printing chromatography precision height, glue strong adhesion to remedy the deficiency that has hot stamping process now, improve cover and scalded precision and can realize halftoning level transition thermoprint and the cover ironing process, produced the existing inaccessiable printing effect of hot stamping process; Three, on the thermoprint format with real ground patterns alternate figures texts and pictures case, reduced the specification requirement of making printing plate, just can meet the demands with universal machine processing printing plate, even because of real negative surface wear again, prolong the service life of thermoprint format, thereby reduced the manufacturing and the cost of use of printing plate.

Description of drawings

Fig. 1 presses the schematic diagram of circle thermoprint colour cell for a kind of circle with coating unit

Embodiment

A kind of as shown in Figure 1 circle with coating unit is pressed circle thermoprint colour cell: be made up of coating unit (1) and hot stamping unit (2), hot stamping unit (2) is installed in coating unit (1) afterwards; Wherein coating unit (1) mainly is made up of roller (11), glue spreader (12), roller platen (13), drying box (14), roller (15) etc.; Hot stamping unit (2) mainly is made up of roller (21), printing plate roller (22), roller platen (23), electrochemical aluminium feeding machanism (24), electrochemical aluminium receiving mechanism (25), roller (26) etc.

The paper (3) of undertaking the printing of is crossed roller (11) and is entered coating unit (1) after printing, be manufactured with halftoning level pattern on the glue spreader (12), after the paper (3) of undertaking the printing of arrives between glue spreader (12) and the roller platen (13), the glue pattern of seal halftoning level is executed in the location, enter drying box (14) drying again, after glue dries, enter hot stamping unit (2) through roller (15) to roller (21); (not having pre-gelatinized) electrochemical aluminium (4) is exported by electrochemical aluminium feeding machanism (24), and the paper of undertaking the printing of (3) enters between printing plate roller (22) and the roller platen (23) with speed, boss on printing plate roller this moment (22) is corresponding with the glue pattern on the paper of undertaking the printing of (3), under suitable temperature and pressure effect, electrification aluminium (4) is pressed pattern characteristics at impression and is adhered on the paper of undertaking the printing of (3), the paper (3) of undertaking the printing of after leaving the impression point is separated with electrochemical aluminium (4), required pattern part is transferred on the paper of undertaking the printing of (3) by electrochemical aluminium (4) by feature, electrochemical aluminium (4) defective material after the separation enters electrochemical aluminium receiving mechanism (25) rolling, the paper (3) of undertaking the printing of is finished the thermoprint of required picture and text, enters next printing process through roller (26).

Claims

1. the circle with coating unit is pressed circle thermoprint colour cell, includes hot stamping unit (2) and coating unit (1), and it is characterized in that: this colour cell is fitted together by coating unit (1) and hot stamping unit (2) and forms; Hot stamping unit (2) is installed in coating unit (1) afterwards.

2. the circle of band coating unit as claimed in claim 1 is pressed circle thermoprint colour cell, it is characterized in that: glue spreader (12) is the forme by required thermoprint diagram text manufacture in the coating unit (1).

3. the circle of band coating unit as claimed in claim 1 is pressed circle thermoprint colour cell, it is characterized in that: in the hot stamping unit (2) printing plate roller (22) have with each by the corresponding circular arc boss of thermoprint picture and text, the end face of boss is a round rectangle after launching, the profile of round rectangle tangent with the largest contours of corresponding picture and text or outside.