Print auxiliary device and print manufacturing method

Abstract

The invention relates to a print auxiliary device and a print manufacturing method, and the method comprises the following steps: polishing a wood board: spraying a 5% cellulase solution on the wood board, then carrying out 400-600 mesh wet grinding, and finally carrying out pulse type hot air rapid drying; the polished wood board is brushed with pigment; transferring the photo to the wood board brushed with the pigment; waxing the wood board subjected to transfer printing of the photo; the wood plate is engraved along the lines displayed by the transfer printing photo to form an engraved plate, and the engraved engraved plate with chippings is placed on an auxiliary device to be subjected to chipping removal; and inking and printing. According to the technical scheme, the print quality can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of printmaking, and in particular to a printmaking auxiliary device and a printmaking method. BACKGROUND

[0002] Woodcut is an artistic form of image transfer by plate making and printing, which usually needs to draw a draft first, transfer the draft to a wood board, then use a knife to carve the wood board to form a protrusion, and finally roll ink on the protrusion, cover paper and print to form a woodcut.

[0003] However, the processing in the above-mentioned many links will affect the quality of the woodcut finally printed, for example, the dust and burrs on the surface of the wood board affect the ink absorption uniformity of the wood board, and the damage to the protrusion during the cleaning of the wood board debris will cause the final printing to be colorless and blurred. SUMMARY

[0004] The purpose of the present disclosure is to provide a printmaking auxiliary device and a printmaking method, which can improve the quality of the woodcut.

[0005] According to one aspect of the present disclosure, a printmaking method is provided, which comprises: Polishing the wood board: spraying 5% cellulase solution on the wood board, then wet grinding with 400-600 mesh, and finally pulse hot air rapid drying; Brushing the polished wood board with paint; Transferring a photo to the wood board brushed with paint; Waxing the wood board with the transferred photo; Carving the wood board along the lines shown by the transferred photo to form a carved board, and placing the carved board with debris on the auxiliary device for debris removal; Inking and printing.

[0006] The technical solution provided by the present disclosure solves the problems of wood burrs and dust on the surface of the wood board by spraying cellulase solution on the wood board to fully swell the surface layer of the wood board, then using wet grinding to keep the grinding debris in slurry form to reduce static electricity and dust, and obtaining a fine, dust-free and beneficially anchored base for subsequent printing, thereby improving the subsequent ink absorption uniformity and improving the printing quality. At the same time, the printmaking auxiliary device is used to remove debris from the above-mentioned carved board with debris by non-contact adsorption and / or the gravity of the debris itself to avoid damaging the protrusion formed by carving, and to ensure the quality of subsequent printing.

[0007] Optionally, the temperature of the hot air is 50-65°C.

[0008] Optionally, the brushing of the polished wood board with paint comprises: The wood board is brushed with 2% nano-SiO2+0.5% chitosan pigments, irradiated by a near-infrared reflectometer, and when the emissivity R is lower than 12%, the next step is to transfer a print onto the wood board brushed with pigments.

[0009] Optionally, the inking includes: A "double hardness convex roller" is used: the roller core is 60ShA, the surface is uniformly distributed with 2mm high 80ShA convex points, the difference in ink amount between the convex top and the concave part is controlled within ±0.3g / m², and one-time roll coating is performed.

[0010] According to another aspect of the present disclosure, the present disclosure also provides a print auxiliary device for connecting to the edge of a table board, the print auxiliary device comprising: A dust suction frame having an air inlet, an air suction port, a dust suction port, a dust outlet, and an airflow channel, the dust suction port and the dust outlet being located on the side wall of the airflow channel, the air inlet and the air suction port being located at both ends of the airflow channel and being higher than the dust outlet, a preset space being present between the dust suction port and the table board, the dust suction port being obliquely arranged from the preset space upward and away from the table board; A fan in communication with the air suction port; Wherein, when the engraved board with debris covers the dust suction port, the fan is started, the engraved board is arranged on the dust suction frame and one end of the engraved board is inserted into the preset space, the fan forms an airflow from the air inlet to the air suction port in the airflow channel, and the debris falls into the dust outlet under the action of its own gravity and / or the airflow.

[0011] Optionally, the side wall opposite to the dust suction port of the airflow channel is an inclined surface, and the slope of the inclined surface is greater than the slope of the plane where the dust suction port is located.

[0012] Optionally, the print auxiliary device further comprises a V-shaped plate; the V-shaped plate is connected with the dust suction frame to divide the airflow channel into a first side channel, a second side channel, and a lower channel, the first side channel and the second side channel are located on opposite sides of the V-shaped plate, the first side channel is arranged adjacent to the dust suction port, the lower channel is located below the V-shaped plate, the first side channel is in communication with the second side channel through the lower channel, the middle of the V-shaped plate is arranged toward the first side channel, and the dust outlet is located below the lower channel.

[0013] Optionally, the edge of the dust suction frame at the dust suction port is provided with a supporting surface for supporting the periphery of the engraved board; a sealing member is arranged on the supporting surface to fill between the supporting surface and the engraved board.

[0014] Optionally, the direction of the air suction port is perpendicular to the direction of the dust outlet.

[0015] Optionally, the print auxiliary device further comprises a waste collecting box; the waste collecting box is in communication with the chip outlet, and the waste collecting box is detachably connected with the chip suction frame. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative effort.

[0017] Figure 1 Fig. 4 shows a connection state diagram of a print auxiliary device and a table plate according to an embodiment of the present disclosure; Figure 2 Fig. 5 shows a three-dimensional diagram of a print auxiliary device according to an embodiment of the present disclosure; Figure 3 Fig. 6 shows a half-section diagram of a print auxiliary device according to an embodiment of the present disclosure; Figure 4 Fig. 7 shows a working state half-section diagram of a print auxiliary device according to an embodiment of the present disclosure.

[0018] Explanation of reference signs: 100, chip suction frame; 110, air inlet; 120, air suction port; 130, chip suction port; 140, chip outlet; 150, air flow channel; 151, inclined surface; 152, first side channel; 153, second side channel; 154, lower channel; 160, preset space; 170, support surface; 200, fan; 300, V-shaped plate; 400, waste collecting box; 10, table plate; 20, engraving plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in the following with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some embodiments of the present disclosure, not all embodiments.

[0020] The present disclosure provides a print making method, which is mainly for the making method of wood print, and the specific method comprises: Polishing wood plate.

[0021] In the present embodiment, cellulase solution with a mass percentage of 5% is uniformly sprayed on the surface of the wood board, the temperature of the enzyme solution is controlled at 38°C, and the spraying amount is determined according to the complete wetting of the surface without flowing. After standing for 90 seconds, wet grinding is performed using 400-600 mesh silicon carbide water sandpaper, and the wet grinding process is continued to maintain the slurry state by dripping water. After wet grinding, pulse hot air drying is adopted, the hot air temperature is 50-65°C, the pulse cycle is 0.3 seconds on and 0.7 seconds off, the wind speed is 8 m / s, and after drying, the moisture content of the wood board is reduced to 8-10%, the surface wood hair is passivated, and a fine and dust-free plate base is obtained, thereby solving the wood hair and dust problems on the surface of the wood board and improving the subsequent ink absorption uniformity.

[0022] The polished wood board is brushed with paint.

[0023] In the present embodiment, the paint is first prepared, the water-based wood plate paint is mixed with 2% nano-SiO2 and 0.5% chitosan, and is dispersed at a speed of 200 rpm for 30 minutes to form a micro-pore-hydrogen bond double network anchoring system; then the paint is brushed longitudinally and transversely on the wood board once respectively using a wool brush; while brushing, a portable near-infrared reflectometer is vertically irradiated on the surface of the wood board, the center wavelength is 1450 nm, and when the reflectivity R decreases by 12% relative to the dry reference, the brushing is immediately stopped to ensure the uniform thickness of the water-containing layer and the uniform color density.

[0024] It should be noted that the nano-SiO2 has a particle size of 20-50 nm and a large number of -OH on the surface, which can form a three-dimensional micro-pore network in the water phase to hold the paint particles. Chitosan is a natural polysaccharide, and the -NH2 and -OH on the molecular chain can form hydrogen bonds with the silicon hydroxyl on the surface of SiO2 and the hydroxyl on the cellulose of wood, which is equivalent to building a bridge at the interface between the paint and the wood. In this way, after the paint is dried, it is not loosely floating on the surface, but is buckled in the wood board by the “micro-pore physical interlocking + hydrogen bond chemical anchoring” double network, which is not easy to peel off in subsequent transfer, waxing, and knife engraving.

[0025] The photo is transferred to the wood board brushed with paint.

[0026] In the present embodiment, the photo paper is first placed in a softening box at 50°C and 85% RH for 3 seconds to increase the water content of the paper base to 6-8%; then the softened photo is covered on the wood board with the photo facing down, a multi-hole vacuum platform is turned on, and the vacuum degree is-35 kPa to make the photo instantaneously flat and adhere; then a three-petal 120° fan-shaped elastic Ma Liang is used for impression, a flexible pressure sensor is embedded on the back of each petal to control the pressure at 35±2 kPa, and the impression is performed twice in a concentric circular track to ensure that the paint is fully transferred; after the impression is completed, the vacuum is turned off, and the photo is removed, and the image is completely left on the wood board.

[0027] The wood board with the transferred photo is waxed.

[0028] In the embodiment, first prepare the microcapsule wax powder, spray the co-melted paraffin wax with a melting point of 58℃ and EVA at a ratio of 9:1 into powder, then coat a 0.5μm melamine-formaldehyde shell in the fluidized bed to obtain the microcapsule wax powder with an average particle size of 40μm; evenly sprinkle 0.8g / dm² of the microcapsule wax powder on the plate surface, quickly heat with a 2MHz induction coil, the power density is 1.5W / cm², and the heating time is 8 seconds, so that the wax liquid penetrates into the conduit and the depth does not exceed 150μm; wipe the excess wax on the surface with a non-woven fabric to form a closed wax layer with uniform thickness and no color change, which provides consistent resistance for subsequent engraving.

[0029] Engrave the wood board along the lines shown on the transfer printing, form an engraved plate, and place the engraved plate with debris on the auxiliary device for debris removal.

[0030] In the embodiment, the engraved plate with debris is placed on the support surface 170 of the print auxiliary device and covers the debris suction port 130, the fan 200 is started, and a high-speed airflow is formed in the first side channel 152, the lower channel 154, and the second side channel 153 divided by the V-shaped plate 300, and the debris falls into the waste collection box 400 under the action of gravity and airflow. The waste collection box is detachably connected with the debris suction frame, which facilitates centralized cleaning and ensures that there is no residual wood debris on the surface of the engraved plate, avoiding the damage of the protrusions caused by manual debris cleaning and affecting the printing quality.

[0031] Ink application.

[0032] In the embodiment, a double-hardness convex point roller is used, the roller core has a hardness of 60ShA, the surface is uniformly distributed with convex points with a height of 2mm and a hardness of 80ShA, and the ink amount difference between the convex point top and the concave part is controlled within ±0.3g / m². Once rolling, a uniform, thin, and elastic ink layer is formed on the wax surface, there is no ink accumulation on the edge, ink is saved, and printing clarity is improved.

[0033] Specifically, when rolling the ink, the entire roller is first dipped in the ink; when pressed onto the wood board (which has been waxed), the soft core (60ShA) is compressed, allowing the “hard convex points” to uniformly touch the ground like small stamps; the hard convex points (80ShA) truly contact the wax surface, transferring the ink “point by point”; the “concave parts” between adjacent convex points almost do not directly contact the wax surface, only bringing out a very thin ink film. In this way, the ink applied by the convex point top is more, and the ink in the concave part is less, but the ink amount difference between the concave and convex parts is designed to be controlled within ±0.3g / m², which looks like a whole uniform color surface to the naked eye, without a line of “fence” and a circle of “ink embankment” on the edge of the plate. In this way, once rolling, there is no need for repeated back and forth, avoiding repeated friction to melt the wax layer again; the soft core is self-adaptive, and the wood board with knife marks or micro burrs can also be flattened; the hard point “dot matrix” ink output saves more ink than traditional smooth rubber rollers, the ink layer on the plate is thin and uniform, and the subsequent impression clarity is higher.

[0034] Printing.

[0035] In the embodiment, the print paper is covered on the engraving plate, and then 0.1 mm polyester film is used as an anti-sticking pad; a magnetic positioning rolling frame is used, the magnetic field strength is 0.15 T, the roller width is 320 mm, one-time stamping is adopted, the pressure is 0.35 MPa, and the speed is 50 mm / s; after the print paper is removed, a line is sharp and the print product has rich levels, and the whole production is completed through natural air drying, signing and numbering.

[0036] Based on the same inventive concept, the print auxiliary device is used for connecting to the edge of the table plate 10, and is used for removing the debris on the above-mentioned just-engraved plate with debris through non-contact adsorption and / or gravity of the debris, so as to avoid damaging the protrusions formed by engraving and ensure the subsequent printing quality.

[0037] Specifically, as shown in Figures 1 to 4 In some embodiments, the print auxiliary device includes a debris suction frame 100 and a fan 200. The debris suction frame 100 has an air inlet 110, an air suction port 120, a debris suction port 130, a debris outlet 140 and an airflow channel 150, the debris suction port 130 and the debris outlet 140 are located on the side wall of the airflow channel 150, the air inlet 110 and the air suction port 120 are located at both ends of the airflow channel 150 and are higher than the debris outlet 140, and the debris outlet 140 is used for discharging the debris sucked or fallen into the airflow channel 150. There is a preset space 160 between the debris suction port 130 and the table plate 10, the preset space 160 is used for inserting one end of the engraving plate 20 to limit the engraving plate 20, so as to avoid the engraving plate 20 from moving randomly during the debris suction process. The debris suction port 130 is inclined upward and away from the table plate 10 from the preset space 160, so that the engraving plate 20 can be inclined and arranged on the edge of the debris suction port 130, and the debris on the engraving plate 20 can also fall into the airflow channel 150 under the action of gravity. The fan 200 is in communication with the air suction port 120, wherein when the engraving plate 20 with debris covers the debris suction port 130, the fan 200 is started, one side of the engraving plate 20 with debris faces the debris suction port 130, the engraving plate 20 is arranged on the debris suction frame 100 and one end of the engraving plate 20 is inserted into the preset space 160, and the fan 200 forms an airflow in the airflow channel 150 from the air inlet 110 to the air suction port 120, and the debris falls into the debris outlet 140 under the action of gravity and / or airflow.

[0038] In actual application, the debris suction frame 100 can be connected with the table plate 10 by means of screws, buckles or the like, so as to stably fix the debris suction frame 100 on the edge of the table plate 10. At the same time, the bottom end of the debris suction port 130 can be slightly lower than the surface of the table plate 10, so that the debris on the table plate 10 can be conveniently cleaned into the debris suction port 130, and the table plate 10 is conveniently cleaned.

[0039] For example, the fan 200 refers to the motor and the wind turbine driven by the motor, and its specific structure can be referred to the prior art.

[0040] In some embodiments, the sidewall of the airflow channel 150 opposite to the dust suction port 130 is an inclined surface 151, and the slope of the inclined surface 151 is greater than the slope of the plane where the dust suction port 130 is located.

[0041] This reduces the cross-sectional area of ​​the airflow channel 150, thereby increasing the flow velocity and improving the airflow's ability to carry away debris. On the other hand, as... Figure 4 As shown, the distance between the plate 20 and the inclined surface 151 gradually increases from the air inlet 110 downwards, thereby avoiding the possibility of debris colliding with and bouncing off the inclined surface 151 and damaging the plate 20.

[0042] In some embodiments, such as Figure 3 As shown, the printmaking auxiliary device also includes a V-shaped plate 300, which is connected to the chip suction frame 100 to divide the airflow channel 150 into a first side channel 152, a second side channel 153, and a lower channel 154. The first side channel 152 and the second side channel 153 are located on opposite sides of the V-shaped plate 300. The first side channel 152 is located adjacent to the chip suction port 130, and the lower channel 154 is located below the V-shaped plate 300. The first side channel 152 is connected to the second side channel 153 through the lower channel 154. The middle of the V-shaped plate 300 is positioned towards the first side channel 152, and the chip outlet 140 is located below the lower channel 154.

[0043] In this way, on the one hand, the cross-sectional area of ​​the airflow channel 150 can be reduced, thereby increasing the flow velocity. On the other hand, the V-shaped plate 300 is equivalent to surrounding the air intake 120, preventing debris from entering the air intake 120 and damaging the fan 200. Furthermore, the surfaces of the V-shaped plate 300 are all inclined downwards, so any debris that accidentally accumulates on the V-shaped plate 300 can flow into the debris outlet 140 under its own gravity after the machine stops, avoiding secondary cleaning.

[0044] Furthermore, the orientation of the air intake 120 is perpendicular to the orientation of the chip outlet 140, thereby increasing the number of bends in the airflow channel that the chips pass through before entering the air intake 120, forming an airflow labyrinth, and reducing the amount of chips entering the air intake 120.

[0045] In practical applications, a mesh can also be installed at the air intake 120 to further prevent debris from entering.

[0046] In some embodiments, the chip suction frame 100 has a support surface 170 at the edge of the chip suction port 130. The support surface 170 is used to support the periphery of the engraving plate 20 to facilitate the placement and support of the engraving plate 20. At the same time, a sealing element is provided on the support surface 170, which fills the space between the support surface 170 and the engraving plate 20 to ensure airtightness and improve the chip suction effect.

[0047] Further, the air inlet 110 is communicated with the dust suction port 130, so that the air inlet 110 can also serve as a grabbing position to facilitate the user to grab the engraving plate 20 through the air inlet 110, thereby facilitating the user to take down the engraving plate 20 from the dust suction frame 100.

[0048] In some embodiments, the print auxiliary device further comprises a waste collecting box 400. The waste collecting box 400 is communicated with the dust outlet 140, and the waste collecting box 400 is detachably connected with the dust suction frame 100, so that the waste collecting box 400 can collect the debris uniformly, thereby facilitating centralized cleaning.

[0049] In the disclosure, the terms "upper", "lower", and the like are used to describe the relative positional relationship of the structures in the drawings, and are only for the convenience of clear description, and are not used to limit the scope of the disclosure. The change or adjustment of the relative relationship without substantial change of the technical content is also regarded as the scope of the disclosure.

[0050] It should be noted that: in the disclosure, unless otherwise clearly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0051] In addition, in the disclosure, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0052] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present disclosure. In the description of the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A method of making a print, characterized by, The method comprises: Polishing the wood board: spraying 5% cellulase solution on the wood board, wet grinding with 400-600 mesh, and finally pulse hot air rapid drying; Painting the polished wood board; Transferring the photo onto the painted wood board; Waxing the wood board with the transferred photo; Carving the wood board along the lines shown by the transferred photo to form a carved board, and placing the carved board with debris on the auxiliary device for debris removal; Inking and printing.

2. The method of claim 1, wherein The temperature of the hot air is 50-65°C.

3. The method of claim 2, wherein The painting of the polished wood board comprises: Painting the wood board with 2% nano-SiO2+0.5% chitosan, using near-infrared reflectance instrument to irradiate, and when the emissivity R is lower than 12%, transferring the photo onto the painted wood board.

4. The method of claim 1, wherein The inking comprises: Using a "double-hardness convex roller": roller core 60ShA, surface uniform distribution of 2mm high 80ShA convex points, convex point top and concave point ink amount difference control within ±0.3g / m², one-time roll coating.

5. An etching aid device characterized by comprising: The printmaking auxiliary device is used to be connected to the edge of the table board (10), and the printmaking auxiliary device comprises: A debris suction frame (100) having an air inlet (110), an air suction port (120), a debris suction port (130), a debris outlet (140), and an airflow channel (150), the debris suction port (130) and the debris outlet (140) are located on the side wall of the airflow channel (150), the air inlet (110) and the air suction port (120) are located at both ends of the airflow channel (150) and are higher than the debris outlet (140), a preset space (160) exists between the debris suction port (130) and the table board (10), and the debris suction port (130) is inclined upward away from the table board (10) from the preset space (160); A fan (200) in communication with the air suction port (120); When the carved board (20) with debris covers the debris suction port (130), the fan (200) is started, the carved board (20) is placed on the debris suction frame (100) and one end of the carved board (20) is inserted into the preset space (160), the fan (200) forms an airflow from the air inlet (110) to the air suction port (120) in the airflow channel (150), and the debris falls into the debris outlet (140) under the action of its own gravity and / or the airflow.

6. The printmaking aid of claim 5, wherein, The side wall opposite to the debris suction port (130) of the airflow channel (150) is an inclined surface (151), and the slope of the inclined surface (151) is greater than the slope of the plane where the debris suction port (130) is located.

7. The printmaking aid of claim 5, wherein, The printmaking auxiliary device further comprises a V-shaped plate (300). The V-shaped plate (300) is connected with the chip suction frame (100) to divide the airflow channel (150) into a first side channel (152), a second side channel (153) and a lower channel (154), the first side channel (152) and the second side channel (153) are located at opposite sides of the V-shaped plate (300), the first side channel (152) is arranged adjacent to the chip suction port (130), the lower channel (154) is located below the V-shaped plate (300), the first side channel (152) is communicated with the lower channel (154) and the second side channel (153), the middle of the V-shaped plate (300) is arranged towards the first side channel (152), and the chip discharge port (140) is located below the lower channel (154).

8. The printmaking aid of claim 5, wherein, The chip suction frame (100) is provided with a support surface (170) at the edge of the chip suction port (130), and the support surface (170) is used for supporting the periphery of the plate (20). A sealing element is arranged on the support surface (170), and the sealing element is filled between the support surface (170) and the plate (20).

9. The printmaking aid of claim 5, wherein, The direction of the air suction port (120) is perpendicular to the direction of the chip discharge port (140).

10. The print assist device according to any one of claims 5 to 9, wherein The print auxiliary device further comprises a waste collecting box (400). The waste collecting box (400) is communicated with the chip discharge port (140), and the waste collecting box (400) is detachably connected with the chip suction frame (100).

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