阅读说明：本技术 一种无版击凸工艺 (Plate-free embossing process ) 是由 杨国伟 杨国强 于 2021-10-08 设计创作，主要内容包括：本发明属于印刷领域,尤其是一种无版击凸工艺,针对现有的工艺在目前订单款式多,数量少的趋势下,制作击凸版的成本相对较高的问题,现提出如下方案,其包括以下步骤：准备一块纸模纸张,将其裁剪成合适尺寸；根据击凸档案设计纸模切割档案；与传统击凸一样,纸模击凸同样是利用上模与底模配合来实现,上下模重叠套准后需要击凸的位置存在间隙,从而使纸张有空间伸展,在压力作用下形成击凸效果；利用激光模切制作击凸纸模；根据激光切割宽度等信息确定激光模切后尺寸与原档案尺寸间的大小关系,据此定出激光模切档案的缩放比例,使用纸模代替铝质击凸版,制作速度快,修改调整方便,以加适应当下订单款数多,数量少的情况。(The invention belongs to the field of printing, in particular to a plate-free letterpress process, which aims at the problem that the cost for manufacturing letterpress plates is relatively high under the current trend of more orders and less quantity in the prior art, and provides the following scheme, which comprises the following steps: preparing a piece of paper mould paper, and cutting the paper mould paper into a proper size; designing a paper mold cutting file according to the convex striking file; the paper mould embossing is realized by matching an upper mould and a bottom mould as in the traditional embossing, and a gap exists at the embossing position after the upper mould and the lower mould are overlapped and registered, so that paper can be stretched in space, and embossing effect is formed under the action of pressure; manufacturing a convex paper hitting mold by utilizing laser die cutting; the size relation between the size of the laser die-cut file and the size of the original file is determined according to the information such as the laser cutting width, the scaling of the laser die-cut file is determined according to the size relation, the paper die is used for replacing an aluminum stamping plate, the manufacturing speed is high, the modification and the adjustment are convenient, and the method is suitable for the condition that the amount of the money of the order is large and the amount is small.)

1. A plate-free embossing process is characterized by comprising the following steps:

s1: preparing a piece of paper mould paper, and cutting the paper mould paper into a proper size;

s2: designing a paper mold cutting file according to the convex striking file; the paper mould embossing is realized by matching an upper mould and a bottom mould as in the traditional embossing, and a gap exists at the embossing position after the upper mould and the lower mould are overlapped and registered, so that paper can be stretched in space, and embossing effect is formed under the action of pressure;

s3: manufacturing a convex paper hitting mold by utilizing laser die cutting; determining the size relation between the size of the laser die-cut file and the size of the original file according to the information such as the laser cutting width, and determining the scaling of the laser die-cut file according to the relation so as to ensure the size accuracy of the embossing paper die;

s4: the model is put on a machine for quick registration and the upper and lower dies are separated from the test effect; the problems of paper wrinkling, sleeve position deviation and the like easily occur after the paper die is cut out by the laser die and then is adhered by glue, so that the paper is adhered to the required thickness by the double-sided adhesive tape and then is subjected to laser die cutting, and the accurate size and difficult deformation can be ensured;

s5: and after the processing is finished, the formed material is inspected and trimmed, and defective products are removed, so that the convex hitting finished product is prepared.

2. The plateless embossing process of claim 1 wherein the basis weight of the paper pattern sheet is controlled at 200g/m in S1²The above.

3. The plate-free embossing process according to claim 1, wherein in S4, the bottom mold and the top mold are cut on the same sheet of paper, and the bottom mold and the top mold are connected by the nail positions, the top and bottom molds are respectively bonded to the corresponding primers during mold assembly, the nail positions are disconnected, the two molds are separated, the positioning points and the bottom mold are located in the same plane, the embossing sheet is cut into positioning holes with the same size as the positioning points in advance, and the embossing accuracy can be ensured only by aligning the positioning holes of the embossing sheet with the positioning points of the bottom mold during embossing.

4. The process of claim 1, wherein in step S4, the laser die cutting speed is fast, and the final modification is fast according to the effect, so that the modification can be fast adjusted according to the actual effect of the embossing paper die.

Technical Field

The invention relates to the technical field of printing, in particular to a plateless embossing process.

Background

The convex (concave) hitting plate is a processing technology which utilizes a hitting plate to apply pressure exceeding the elastic limit of a printing stock by mechanical action to form a concave-convex effect on the surface, for different convex-convex pattern effects, corresponding hitting plates need to be manufactured, the hitting plate can be used for a long time, and the hitting plate is very advantageous for the conditions of single order style and large quantity, but under the current trend of more order styles and small quantity, the cost for manufacturing the hitting plate is relatively high, for example, a patent with the application number of CN201310078338.4 discloses a three-dimensional concave-convex printing technology, so that a better printing effect can be realized, and the appearance quality of the three-dimensional concave-convex is improved. Compared with the first printing method in the prior art, the height of the three-dimensional raised grains, particularly the height of the raised grains, can be improved, and the touch feeling and the visual effect are more obvious. Compared with the second printing method in the prior art, a complex metal die is not needed, the manufacturing cost of the finished product is reduced, and the manufacturing efficiency of the finished product is improved.

The processing technology of applying pressure exceeding the elastic limit of a printing stock by mechanical action and forming a concave-convex effect on the surface needs to manufacture corresponding letterpress plates for different letterpress pattern effects, the letterpress plates can be used for a long time, and the letterpress plates have great advantages under the conditions of single order style and large quantity, but the cost for manufacturing the letterpress plates is relatively high under the current trends of more order styles and small quantity; compared with the common bump process, the plate-free bump process utilizes the paper mold to replace an aluminum plate for bump production, different bump plates need to be specially manufactured for different patterns in the traditional bump production, the manufacturing process is complicated, manual positioning correction is mainly used during production, and the positioning accuracy is not ideal. And the usable laser cross cutting of paper mould that replaces usefulness makes fast, and die block and last mould can cut out on same paper, and the separation simultaneously that combines with the primer during the dress version to protruding degree of depth can be adjusted through increasing paper thickness fast to the difference hits, convenient and fast. In addition, the convex paper hitting mold can easily and conveniently set positioning points, so that quick positioning is realized. The method is particularly suitable for the current order trend of more styles and small quantity and the defects of paper models: compared with aluminum stamping plates, the paper mould material is softer, the stamping quality is easily influenced by extrusion deformation after long-time production, and the paper mould material needs to be replaced after a certain amount of production, so that the adaptability to orders with large amount is relatively poor; the paper mold convex striking is more suitable for striking a product with a smooth convex surface, and the paper mold convex striking is difficult to realize for the product design with a large radian. The old method comprises the following steps: special striking relief plates are required to be manufactured according to different striking and protruding files, and then the striking relief plates are installed on the die ironing equipment for production; the letterpress can be used for a long time, and is very advantageous to the condition of single order style and large quantity, but under the current trend of more order styles and small quantity, the cost for manufacturing the letterpress is relatively high, and the alignment is completely operated manually, so that the time is consumed, and the accuracy is poor. The new method comprises the following steps: replacing the aluminum letterpress board 1 with a paper mould, and preparing paper with the required target thickness according to file information and requirements; 2. manufacturing a laser cutting file; 3. cutting the paper mold by laser; 4. installing a paper mold; 5. bump testing and production; compared with an aluminum lettering board, the paper mold is simple and quick to manufacture, convenient to modify, more adhesive, suitable for orders with large amount of money and small quantity, and accurate in alignment. The method has the following defects: the paper mold strength is poor for aluminum hit letterpress, the service life is short, and the paper mold strength is not suitable for orders with large quantity.

Disclosure of Invention

Based on the problem that the cost for manufacturing the letterpress is relatively high under the current trend of more orders and less quantity in the background technology, the invention provides a plate-free letterpress process.

The invention provides a plate-free embossing process, which comprises the following steps:

s1: preparing a piece of paper mould paper, and cutting the paper mould paper into a proper size;

s2: designing a paper mold cutting file according to the convex striking file; the paper mould embossing is realized by matching an upper mould and a bottom mould as in the traditional embossing, and a gap exists at the embossing position after the upper mould and the lower mould are overlapped and registered, so that paper can be stretched in space, and embossing effect is formed under the action of pressure;

s3: manufacturing a convex paper hitting mold by utilizing laser die cutting; determining the size relation between the size of the laser die-cut file and the size of the original file according to the information such as the laser cutting width, and determining the scaling of the laser die-cut file according to the relation so as to ensure the size accuracy of the embossing paper die;

s4: the model is put on a machine for quick registration and the upper and lower dies are separated from the test effect; the problems of paper wrinkling, sleeve position deviation and the like easily occur after the paper die is cut out by the laser die and then is adhered by glue, so that the paper is adhered to the required thickness by the double-sided adhesive tape and then is subjected to laser die cutting, and the accurate size and difficult deformation can be ensured;

s5: and after the processing is finished, the formed material is inspected and trimmed, and defective products are removed, so that the convex hitting finished product is prepared.

Preferably, in S1, the basis weight of the paper pattern is controlled to 200g/m²The above.

Preferably, in S4, the bottom mold and the top mold are cut out on the same piece of paper, and the bottom mold and the top mold are connected by using the nail positions, the top mold and the bottom mold are respectively bonded to the corresponding base glue during mold installation, the nail positions are disconnected, the two molds are separated, the positioning points and the bottom mold are located in the same plane, the embossing sheet is cut into positioning holes with the same size as the positioning points in advance, and the embossing accuracy can be ensured only by aligning the positioning holes of the embossing sheet with the positioning points of the bottom mold during embossing.

Preferably, in S4, the laser die cutting speed is fast, and finally, the modification is fast performed according to the effect, so that the modification can be fast performed according to the actual effect of the embossing paper die.

The invention has the beneficial effects that:

1. compared with the traditional embossing process, the embossing without plate embossing replaces the complex and fussy embossing plate with the paper mold which is simple and quick to manufacture, and the actual effect can be quickly confirmed by embossing after a client places an order, so that the period of confirmation by the client can be greatly shortened, and the material cost required by the original electric plate is reduced;

2. the paper mold is used for embossing, the embossing effect can be rapidly adjusted on site according to actual conditions, and the embossing depth and the size accuracy can be conveniently controlled;

compared with the common embossing process, the plate-free embossing process utilizes the paper mold to replace an aluminum plate for embossing production, different patterns need to be specially manufactured into different embossing plates in the traditional embossing production, the manufacturing process is complicated, manual positioning correction is mainly used during production, the positioning accuracy is not ideal, the replaced paper mold can be quickly manufactured by utilizing laser die cutting, the bottom mold and the upper mold can be cut on the same paper, the bottom mold and the upper mold are combined and separated simultaneously during embossing, and the paper thickness can be quickly adjusted by increasing the paper thickness for different embossing depths, so that the embossing paper mold is convenient and quick, positioning points can be easily and conveniently set for the embossing paper mold, and the embossing paper mold is quick in positioning and particularly suitable for the current order trend with more styles and less quantity.

Drawings

Fig. 1 is a flow chart of the present invention.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.

Referring to FIG. 1, examples

The embodiment provides a plate-free embossing process, which comprises the following steps:

s1: preparing a piece of paper mold paper, cutting into proper size, and controlling the basis weight of the paper mold paper at 200g/m²The above;

s2: designing a paper mold cutting file according to the convex striking file; the paper mould embossing is realized by matching an upper mould and a bottom mould as in the traditional embossing, and a gap exists at the embossing position after the upper mould and the lower mould are overlapped and registered, so that paper can be stretched in space, and embossing effect is formed under the action of pressure;

s3: manufacturing a convex paper hitting mold by utilizing laser die cutting; determining the size relation between the size of the laser die-cut file and the size of the original file according to the information such as the laser cutting width, and determining the scaling of the laser die-cut file according to the relation so as to ensure the size accuracy of the embossing paper die;

s4: the model is put on a machine for quick registration and the upper and lower dies are separated from the test effect; firstly cutting a paper mould by a laser mould and then sticking the paper mould by glue, which is easy to cause the problems of paper wrinkling, sleeve position deviation and the like, so that firstly sticking the paper to a required thickness by using double-sided adhesive and then carrying out laser mould cutting, thus ensuring accurate size and difficult deformation, cutting a bottom mould and an upper mould on the same paper, utilizing nail positions for connection, respectively bonding an upper mould and a lower mould with corresponding bottom glue during mould assembly, disconnecting the nail positions, separating the two moulds, cutting a convex print sheet into a positioning hole with the same size as the positioning point in advance in the same plane with the bottom mould, and only registering the printing sheet positioning hole and the bottom mould positioning point during convex striking to ensure the convex striking accuracy, finally, quickly modifying and adjusting according to the effect, and having high laser mould cutting speed, so that the modification can be quickly carried out according to the actual effect of the convex print sheet striking mould;

s5: and after the processing is finished, the formed material is inspected and trimmed, and defective products are removed, so that the convex hitting finished product is prepared.

Selecting proper paper materials to ensure the strength of the paper mold; determining deviation between a laser die cutting file and an actual cutting effect, and making a scaling ratio to ensure that the paper die is accurate in size; the bottom die and the upper die are simultaneously die-cut on a piece of paper, and the nail positions are reasonably arranged to ensure that the upper die and the lower die can be smoothly separated during plate mounting; rationally set up the setpoint, it is accurate to guarantee to hit protruding cover position, use the paper mould to replace aluminium matter to hit the relief printing plate, the preparation is fast, it is convenient to modify the adjustment, in order the number of money many when adding the adaptation, the condition of small in quantity, hit protruding technology with the tradition and compare, it hits protruding complicated loaded down with trivial details relief printing plate of replacing the preparation with the simple quick paper mould of preparation to have no version, can beat the version after the customer is listed as the back and confirm actual effect fast, can shorten the cycle of confirming with the customer by a wide margin, and reduce the required material cost of original electroplax, it is protruding to utilize the paper mould to hit, it can carry out quick adjustment to the paper mould according to actual conditions scene to hit protruding effect, protruding degree of depth is hit in control that can be very convenient, size accuracy.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.