CN1375394A - Method of shortening paper board lustering, stoving and burnishing process - Google Patents

Abstract

The method for shortening lustering, drying and calendering process of paper board can be used in conveying process for lustering paper board which is characterized by that firstly, using coating machine to apply lustering solution on paper board, then making the paper board undergo the vortex flow type hot-drying process and vortex flow type cold-drying process to make the lustering solution applied on the paper board quickly dry and firmly-cohere on the paper board, then using calender with seamless drum to calender the paper board, so that it can obtain the transparent smooth surface effect and can shorten its lustering and calendering process.

Description

The method of a kind of shortening paper board lustering, stoving and burnishing process

The present invention relates to a kind of method of cardboard being carried out glazing oven dry and press polish, more particularly, the operation process that relates to a kind of shortening paper board lustering, stoving and press polish to obtain the cardboard method of lustering of flash baking and press polish effect, is beneficial to improve optical efficiency on the cardboard.

The glazing operation of cardboard mainly is with alcohol, toluene, acetone and other organic solvent, or avirulent ammoniacal liquor, resin added the aqueous solvent that water is modulated into emulsification, solvent evenly is coated on the cardboard that has been completed for printing, form not dried solid glazed boards, utilize interim drying plant that not dried solid glazed boards are as yet dried again, impel the glazing solvent on the glazed boards dry rapidly, form the glazed boards that the surface has the layer of transparent wet look.

Above-mentioned glazed boards are used on general packing box, catalog or the leaflet usually, so the glazing technology of cardboard has been very general, and demand is very big.Yet, photoreduction process and equipment on traditional cardboard, as shown in Figure 1, at first be to carry out coating process 2, promptly utilize 20 pairs of cardboards of coating machine 1 to carry out coated glazing solvent 21, utilize the netted conveyer belt 31 on the transportation machine 3 to transmit the cardboard 1 that is coated with glazing solvent 21 then, cardboard 1 is transmitted in regular turn and, cardboard 1 is obtained do the transparent glossy surface after solid through operation process such as overheated baking process 4, cold baking process 5 and burnishing process 6.

But, on above-mentioned traditional cardboard, in the photoreduction process, must carry out operation process such as hot baking process 4, cold baking process 5 and burnishing process 6 to the cardboard 1 that is coated with glazing solvent 21 by the very long equipment (tens of rice are arranged usually) of service range.

Because the heat of conventional cardboard glazing technology baking process 4 is to set up the electric heater 41 of long distance on transportation machine 3, thereby on transportation machine 3, form the heat baking district of long distance, when making cardboard 1 transmission through this heat baking district, the heat energy that can utilize electric heater 41 to produce comes cardboard 1 carried out first section heat baking processing.But, the very power consumption of this structure, and the heating rate of electric heater 41 is slow, and can only produce non-imposed thermal radiation and can come coated glazing solvent 21 on the heat baking cardboard 1, must be dependent on extremely long heat baking travel distance because of it again and come that cardboard 1 is continued heat and dry by the fire, make the moment thermal efficiency wretched insufficiency of in traveling process cardboard unit are.Simultaneously make transportation machine 3 carry long distance and warm the district and cause the long disappearance of its occupation of land virtually in order to hold, and also caused length apart from process in speed cross low and influence the drawback of its production capacity.

In addition, the cold baking process 5 of conventional cardboard glazing technology is to set up the bottom blowing type electric fan 51 of long distance on the transportation machine 3 of heat baking district back segment, on transportation machine 3, form the cold baking district of long distance, when making cardboard 1 through this cold baking district, the cold wind that utilizes electric fan 51 to produce comes cardboard 1 is carried out the cold baking processing of secondary segment.But, 51 blast that can produce of electric fan are to adopt diffusion way to blow coated glazing solvent 21 on the cardboard 1, its blast can't be brought into play the effect of assembling winding-up, then dry by the fire and the not dried fully as yet solid cardboard 1 of glazing solvent 21 just accepting heat, institute's cold wind of obtainable moment is pressed very limited on its unit are.Therefore, must be dependent on the extremely long cold baking district of travel distance comes cardboard 1 is continued cold baking, thereby make transportation machine 3 take up an area of long disappearance virtually, also cause simultaneously and longly cross low and influence the drawback of its production capacity apart from speed in the operation process in order to hold to carry to cause by the cold baking district that electric fan 51 constituted of long distance.

The burnishing process 6 of conventional cardboard glazing technology is that the not end at transportation machine 3 disposes a calender 61, and this calender 61 mainly includes front roll 62, a back roll 63 and a press polish steel band 64 of a heat pressing type.Wherein in front roll 62, be provided with heater 65, front roll 62 is heated, and conduct heat on the steel band 64, the parallel rubber wheel type auxiliary cylinder 66 that is provided with below front roll 62, this auxiliary cylinder 66 and front roll 62 are mutually to changeing, receive the cardboard 1 that transportation machine 3 ends are transferred to pick, make cardboard 1 be attached on the steel band 64 and the heat of carrying out back segment is taken off burnishing process through reversal of the natural order of things behind the hot pressing function of front roll 62.But, the method that this traditional hot is taken off press polish still has that to cause heat to take off burnishing process long and easily cause the serious disappearance of substandard products, because traditional calender 61 employed steel bands 64 have butt joint slit 67, in order not allow cardboard 1 overlay on this butt joint slit 67 to cause the press polish bad phenomenon, it all is just to allow cardboard 1 break away from steel band 64 automatically at back roll 63 places after taking off transmission range through the long heat of front roll 62 and back roll 63 compoles cardboard 1 that all traditional heat are taken off burnishing process, thereby finish the heat of cardboard 1 is taken off the press polish running, therefore causing the line-spacing of burnishing process long, is the another drawback of conventional cardboard glazing technology.

The object of the present invention is to provide a kind of method of lustering that can effectively shorten processes such as heat baking, cold baking and press polish in the paper method of lustering.

Yet, can shorten photoreduction process and the purpose that improves whole process rate on the cardboard in order to reach, be not only the gait of march that one-side consideration improves the transmission cardboard, and the transmission speed of cardboard in processes such as heat baking, cold baking and press polish must be according to cardboard on the glazing solvent coated amount and utilize thermal air pressure, cold wind to press reciprocation to make that glazing solvent institute is receptible to allow that breathing, rate of drying and press polish mode decide.

To achieve these goals, the method that can effectively shorten oven dry of cardboard glazing and burnishing process among the present invention is in the transfer process of cardboard glazing, at first use coating machine that cardboard is carried out coated glazing solvent, transmit in regular turn and through overheated baking and cold baking process with the relief cardboard, make that the glazing solvent that is coated on the cardboard can rapid draing and firm attachment.Then, utilize calender that cardboard is carried out burnishing process.

Utilize air-heater to come to carry out heat baking to being coated with the cardboard that the glazing solvent is housed in the hot baking process of eddy current type to the cardboard glazing, wherein air-heater is by a hot bellows, and the heater of installing in hot bellows, whirling motion air curtain and wind deflector constitute.

To utilizing air-cooler to come the cardboard of finishing heat baking is carried out cold baking in the cold baking process of the eddy current type of cardboard glazing, wherein air-cooler is by a packaged air conditioner after heat baking process, and the whirling motion air curtain of installing in packaged air conditioner and wind deflector constitute.

After baking of the heat of glazed boards and cold baking process, utilize calender to come that cardboard is carried out heat and take off burnishing process, wherein calender contains the seamless roller of having heaters by a upper end and the auxiliary cylinder of a lower end rubber wheel type constitutes.

In addition, described seamless roller have seamless, be enough to roll that the glazing solvent makes that to the glossy surface of smooth the cardboard behind the glazing has required glossy surface on the cardboard.

Therefore, the method of above-mentioned shortening paper board lustering, stoving and burnishing process is except that the suitable transmission speed of control glazed boards when the processes such as heat baking, cold baking and press polish, the more important thing is the means that enhance heat baking and cold baking blast intensity of having utilized, and utilize a seamless roller with light face to carry out the means that heat is taken off press polish, make and finish and safeguard under the prerequisite that keeps cardboard glazing quality and effect, can reach and shorten whole process and and the purpose of lifting speed.

Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.

Fig. 1 is equipment and a process schematic diagram in the conventional cardboard method of lustering;

Fig. 2 is equipment and a process schematic diagram in the cardboard method of lustering among the present invention.

As shown in Figure 1, the method that can shorten glazed boards oven dry and burnishing process among the present invention mainly is at first to utilize coating process 2 in to the transfer process of cardboard 1 glazing, promptly use 20 pairs of cardboards of traditional coating machine 1 to carry out coated glazing solvent 21, transmit in regular turn and through hot baking process of an eddy current type 7 and the cold baking process 8 of another eddy current type with relief cardboard 1, the feasible glazing solvent 21 energy rapid draings that are coated on the cardboard 1, and firm attachment.Then, utilize 90 pairs of cardboards of a calender 1 to carry out point of contact formula burnishing process 9 again, the light surface accuracy that has required press polish cardboard 1 because of the seamless roller in the calender 90, make the glazing solvent 21 that is coated on the cardboard 1 can obtain the effect of transparent optical face fast, thereby reach the purpose that shortens whole process.

As shown in Figure 2, in coating process 2, be provided with the transfer pipeline 23 that an application roller set 22 and is used to transmit glazing solvent 21 in employed traditional coating machine 20.Roller set 22 in this coating machine 20 is picked from the external world and is received the cardboard for the treatment of with glazing processing 1, and accept the glazing solvent 21 that transfer pipeline 23 is supplied, to be implemented in the operation process that carries out roll extrusion and coated an amount of glazing solvent 21 on the cardboard 1, the cardboard 1 of coated glazing solvent 21 is sent on the netted conveyer belt 32 of a transportation machine 30 subsequently.

As shown in Figure 2, the hot baking process 7 of eddy current type mainly is to utilize an eddy current type air-heater 70, this eddy current type air-heater 70 is set up on the first fragment position of the transportation machine 30 after coating process 2 is finished.The hot baking process 7 of this eddy current type comes the process of heat baking cardboard 1 inequality with the mode that tradition only utilizes electric heater 41 to produce heat radiation or thermal natural convection.Eddy current type air-heater 70 among the present invention is to be provided with one to add device 72, a whirling motion air curtain 73 and a wind deflector 74 in a hot bellows 71.Wherein, the heat energy that heater 72 is produced produces mandatory whirling motion blast by whirling motion air curtain 73 in hot bellows 71, and when being sent to reducing place of wind deflector 74, this heat energy carries out further supercharging, and then to forcing to blow strong prosperous eddy current type thermal air pressure by the next cardboard 1 of netted conveyer belt 32 transmission on the transportation machine 30, make that the heat baking speed of expansion of glazing solvent 21 speeds on the cardboard 1, form the strong prosperous eddy current type thermal air pressure effect form of instantaneous heat baking cardboard 1, thereby carry out the Len req of the hot baking process 7 of eddy current type on the transportation machine 30 of the stroke distances of shortening heat baking effect, and then shortening effectively.As shown in Figure 2, will transfer to the cold baking process 8 of next section eddy current type by netted conveyer belt 32 again through the cardboard 1 of hot baking process 7 effects of eddy current type subsequently.

The cold baking process 8 of eddy current type mainly is to utilize an eddy current type air-cooler 80, this eddy current type air-cooler 80 is set up on the inferior fragment position of transportation machine 30 after the hot baking process 7 of eddy current type is finished, and this eddy current type air-cooler 80 only utilizes the mode of the cold baking of electric fan, diffusion inequality with tradition.Eddy current type air-cooler 80 among the present invention mainly includes a packaged air conditioner 81, and is provided with a whirling motion air curtain 83 and a wind deflector 84 in this packaged air conditioner 81.In packaged air conditioner 81, drive whirling motion air curtain 83 and suck mandatory whirling motion cold wind pressure from the external world, and press the reducing that is sent to wind deflector 84 to carry out further supercharging this cold wind, and then the cardboard 1 that is transmitted by netted conveyer belt 32 on the transportation machine 30 is forced to blow strong prosperous eddy current type cold wind press, make that just the glazing solvent 21 on the cardboard 1 of overheated baking can promptly be accepted cold baking contraction, form the strong prosperous eddy current type cold wind pressure effect form of cold baking cardboard 1 of moment, thereby shorten the stroke distances of cold baking effect effectively, and then shorten the Len req that carries out the cold baking process 8 of eddy current type on the transportation machine 30.To be transferred to next section burnishing process 9 through netted conveyer belt 32 through the cardboard 1 after rapid 8 effects of cold smoking subsequently.

Burnishing process 9 mainly is the calender 90 that utilizes transportation machine 30 ends, and this calender 90 mainly includes a seamless roller 91 with 1 light requirement surface accuracy of press polish cardboard, and at a rubber wheel type auxiliary cylinder 92 of seamless roller 91 bottoms.Wherein, seamless roller 91 is driven by a motor 93, again because of on seamless roller 91 and auxiliary cylinder 92, all being provided with the fluted disc 94 and 95 of the transmission that is meshed, make auxiliary cylinder 92 drive concurrent looks to running, thereby form hot taking off between the active region of press polish cardboard 1 between 92 at seamless roller 91 and secondary rolling by seamless roller 91.In addition, in seamless roller 91, be provided with a heater 96, seamless roller 91 is heated, utilize hot pressing function to make and almost done the optical surface that takes off that solid glazing solvent 21 produces light on the cardboard 1.Simultaneously, because of auxiliary cylinder 92 is erected between the bilateral chute 97, make auxiliary cylinder 92 can accept the control of very contracting automatically of oil hydraulic cylinder 98, so that control press polish effect spacing between seamless roller 91 and the auxiliary cylinder 92, thereby obtain comparatively desirable cardboard press polish precision according to the actual (real) thickness behind cardboard 1 glazing.Because on seamless roller 91, have the seamless luminosity surface of rolling, adopt circle point of contact mode to carry out heat when rolling cardboard 1 to take off burnishing process because of relatively rotating again at itself and 92 of auxiliary cylinders, thereby the row that only need adjust between upper and lower seamless roller 91 and the auxiliary cylinder 92 organizes width and can finish press polish cardboard process simple and easy, apace, and need not to expend long process, and then can save the shared space of board, also can promote the efficient and the speed of whole process.

In sum, the shortening cardboard glazing oven dry that is provided among the present invention and the method for burnishing process, the process of certain shortening paper board lustering operation, and obtain the method for lustering of flash baking and press polish effect, for cardboard glazing processing industry, be one to help promoting the method for optical efficiency on the cardboard invariably.

Claims (2)

1. the method for shortening paper board lustering, stoving and burnishing process, this method is applied in the transfer process of cardboard glazing, at first use coating machine that cardboard is carried out coated glazing solvent, with the relief cardboard dry in regular turn, cold baking and burnishing process, to finish processing operation, it is characterized in that the cardboard glazing:

Utilize air-heater to come to carry out the hot baking process of eddy current type to being coated with the cardboard that the glazing solvent is housed on cardboard in the photoreduction process, wherein air-heater is by a hot bellows, and the heater of installing in hot bellows, whirling motion air curtain and wind deflector constitute;

Utilize air-cooler to come the cardboard that hot baking is finished is carried out the cold baking process of eddy current type at heat baking process back segment, wherein air-cooler is by a packaged air conditioner, and the whirling motion air curtain of installing in packaged air conditioner and wind deflector constitute;

After baking of the heat of glazed boards and cold baking process, utilize calender to come that cardboard is carried out heat and take off burnishing process, wherein calender contains the seamless roller of having heaters by a upper end and the auxiliary cylinder of a lower end rubber wheel type constitutes.

2. according to the method for the shortening cardboard glazing described in the claim 1 oven dry and burnishing process, it is characterized in that: described seamless roller have seamless, be enough to roll on the cardboard glazing solvent to the glossy surface of smooth.

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