CN85101833A - With technology and the device of plastic substance to screenprint application - Google Patents
With technology and the device of plastic substance to screenprint application Download PDFInfo
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- CN85101833A CN85101833A CN85101833.5A CN85101833A CN85101833A CN 85101833 A CN85101833 A CN 85101833A CN 85101833 A CN85101833 A CN 85101833A CN 85101833 A CN85101833 A CN 85101833A
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Abstract
The invention relates to and use powder and plastic paste material,, textile or other flexible fabric surfaces are carried out technology and the device that web plate is coated with seal as form with hot-melt adhesive.The application of plastic material is the help by means of the engraving roller that rotates, the groove that has web plate shape in its surface, and the surface of engraving roller is heated, and plastic substance is filled into groove.Need be coated with the fabric of seal, be placed in the surface of engraving roller after heating, the plastic substance that is carrying then in the groove leaves the engraving roller.For raising speed, the surface of the engraving roller among the present invention after groove is filled on its annular path circumscribed, is heated with 20～180 ° cornerite districts.After plastic substance temperature in groove raise, surface of roller was cooled on its circuit, and scope is before the supply centre of coated fabric, and cornerite is greater than 60 ° interval.
Description
The invention relates on textile or other flexible fabric surfaces and carry out technology and the device that web plate is coated with seal with Powdered or plastic paste material, as mode by hot-melt adhesive, have the rotation engraving roller of groove by the surface, its surface is heated and plastic substance is packed into and goes in its groove.The fabric heating that will be coated with seal is placed on the roller that has groove, and then leave the engraving roller with the plastic substance in the above-mentioned groove, said flexible fabric also has lining, paper, natural and synthetic leather and similar articles except woven and knit goods and crochet needle fabric.
Technology and device that several notch boards are coated with seal are known, and by them, plastic powders or pasty state are printed on the flexible fabric surface.For example in CH-PS360 365, narrated one and carried out the production process that the batch (-type) web plate is coated with seal on the textile top layer, wherein particularly the pasty mixture of plastic powders is used to the softening agent of liquid, for example: the PVC of hot glue body sticks with paste, in this process, cooling carefully in funnel, the pastel that cohesion does not take place is added on the engraving roller of a rotation through heating, after in engraving the rotatablely moving of roller pastel being added its groove, pastel condenses until curing on the part surface of roller.Be pressed into the engraving roller with textile then and contact with condensation product in the engraving groove with speed motion, textile is heated to high temperature more than 200 ℃ by a moving heating and/or pressurization roller, so that the condensation product in the softening area that contacts with textile carrier or make it to begin to melt, and then the surface of textile is closely contacted with the web plate shape particle of plastic substance, the engraving roller on after after a while, textile is carrying to be coated with and is being imprinted on top material and leaves the engraving roller together, so the whole fillers in the engraving groove are accurately transferred on the fabric with the shape of groove.
Be coated with seal with this pastel, main problem is the suitable cooling and the liquefaction of initial stage pastel in funnel.Because too early condense upon whole being coated with in the seal process and must avoid, otherwise cutting just can suitably be full of.
This technology also can be used plastic powders in principle, especially the hot melt powder.
Deutsche Bundespatent PS 17 71 516 has described powder application powder examples of material by this way.Can replace aqueous paste with a kind of pourable powder, this powder can form the dough of powder particle when heating, fill out in the engraving groove with it.The engraving roller still keeps at high temperature, so that produce the little group of the observable powder particle of eyes, after after a while, to printing with the moving textile that is heated by the thermal pressure roller of identical speed, temperature still remains on more than 200 ℃, so that the filler of fusing contact portion, thereby between the particle of the top layer of textile and plastic substance, form contact closely.Textile is walked around about 180 ° of the cornerite of roller, promptly leaves from the engraving roller after after a while, and when production method is correct, whole fillers will shift according to printed patterns accurately.
Have been found that in the production that continues printing all powder are coated with seal technology all can not save cooling and mixing apparatus in funnel, so that avoid the too early agglomerates that forms, this agglomerates is similar to the pastel of cohesion too early.In funnel, must keep good flowing property; Otherwise the supply of the filler of engraving in the groove will be affected, however when being coated with seal with powder, resemble pastel be coated with India and China must have careful optional.Must avoid the tendency of pastel curing in funnel by special treatment, this also is the reason that impression method can not base oneself upon on market that is coated with according to the sort of type of CH-PS 360 365.In contrast, other powder are coated with seal technology, nowadays still are used on sizable scale, and are main because they no longer need hopper is carried out so much treatment.Solved by adding this problem of material (for example the DE-PS 20 12 009 and 21 58 282) initial stage that powder has been stenciled in the runner intaglio that increases perfusion property; but present powder is coated with seal technology still conclusive shortcoming; the most outstanding shortcoming is that carrier material has to be heated to so high temperature; to such an extent as to begin in many cases to become; tarnish; hardening and lose intensity significantly; high temperature is especially unfavorable for synthetic and lining; at present; lining only is coated with seal technology by temperature protection; for synthetic material, also be difficult to get rid of this hardening phenomenon.
Furthermore, also has a shortcoming, be that existing powder is coated with seal technology and only can uses under lower speed ideal results is just arranged, for example, even adopt large-sized heat to carve roller, traditional lining material adopts current technology when speed of production surpasses 10～12m/min, also almost can not be coated with seal.Employing is during than higher speed, the discharge of engraving groove is very incomplete, particularly be arranged in 11～16 and when the open stich fabric is used at some thicker round spot decorative pattern, how many some powder are retained in the engraving groove, the transfer of powder is just incomplete, do not reach the requirement of original desirable garden pearl shape, print the article unclarity of coming out.
Recently, work post is known with the technology that fine powder more is coated with seal, they no longer need carrier material is carried out higher heating, in a kind of technology (as Schaetti heat wave processing) penetrate method or the heating of convection current method with the width of cloth and be in the carrier imported and exported between the pressurization roller and the annulus area of engraving roller, it is imported and exported roller and is not heated, and this method has replaced carrier material and the method that is contacted and heat by the import and export pressurization roller through heating.The width of cloth is penetrated heating and Convective Heating has following effect, promptly the plastic powders material of inserting the earliest in the groove is melted, and with molten state enter the exit second the pressurization roller, the carrier layer that will contact with it without second the pressurization roller that heats is pressed into the Packed part in engraving roller place, thereby makes it to contact closely with the surface of carrier.Another kind of technology (also from Schaetti) be the pressurization roller of import department and carrier layer to the engraving roller around being removed, in this technology the width of cloth penetrate the heating and Convective Heating the carrier layer around roller is not had an effect, but act directly on the engraving groove filler, carrier layer itself is only arrived above the engraving roller by the outlet pressurization roller delivery without heating, thereby contacts with engraving roller straight line.But before straight line contacted with it, the groove filler must remain on molten state, so that realize the discharge of groove and the immobilization on the carrier.Its advantage is, especially for the latter, can protect the temperature of carrier layer, even lining and synthetic material also can be coated with seal, and not tarnish or harden.But also have a shortcoming, the temperature that above-mentioned two kinds of Schaetti Process all need the width of cloth to be penetrated heating and Convective Heating is carried out meticulous control.If the intensity and the service speed of heating are inharmonious, will perhaps cause the interior inserts of groove to cross fractional melting and make groove and melt fusion owing to the insufficient round spot that produces completely or very big incompleteness is arranged of groove discharge.
The objective of the invention is to invent a kind of flexible fabric and carry out the technology that web plate is coated with seal, make it to form flawless round spot being coated with under the obvious situation about improving of print-out rate to the above-mentioned type.This technology can be used for lining and synthetic material, and does not damage their quality.And adaptability widely arranged, and without any the danger of powder curing or the powder particle fragmentation that is transferred.It is not only applicable to powder, and can be used for pastel, the PVC plastics melten gel of hot glue shape especially, and it has the characteristic of hot-melt adhesive.According to CH-PS 360 365, the problem of first initial stage pastel maintenance liquid condition in the funnel also is reduced, in addition to making this technology that vitality more be arranged.
This problem has creatively been solved in the technology of the above-mentioned type, method is after with the plastic substance filling groove, its surface of heating on the circuit of engraving roller, its angular range is 20～180 °, thereby improved the temperature of plastic substance in the engraving groove, and before being coated the application point of fabric, on the rear annular route of roller, surface of roller is cooled off, its cornerite scope is greater than 60 °.
Be coated with seal technology hereto, no matter the Powdered still plastics of pasty state all can be used as original material is used, the suitable plastic powder is the copolyamide powder, the copolyesters powder, based on the powder of poly-vinegar ethene, low-pressure polyethylene powder, the copolymer powder of vinyl acetate and ethene, the Polyurethane powder, they all are used with the meltability technology.So-called plastisol, it is the flowable mixture that a kind of PVC powder and liquid softener are formed, and is fit to do pastel.
Use technology of the present invention under the speed of selecting, the flowability of filled plastics material and distribution all have obvious variation in each case.When adopting powder, the placeability of powder particle has not just existed, and mobile variation can be agglomerating to the beginning melting point from powder particle gelling sintering, and be not printed on any destruction to being coated with.Use pastel, mobile forfeiture can be reduced to the beginning gelation between the complete gelation, the cooling of engraving surface of roller is to carry out at once after the part in roller garden week heats, it is so that the particle in the groove is discharged without difficulty, both made particle gel, sintering or clinkering are one.Even under high speed, low-density powder dough also is so that groove has no being emptied completely of difficulty on the other hand.The variation of distribution can be filled perhaps change gradually in the scope very big, there is no the hell and high water problem and produces being coated with India and China.
To the heating on surface of engraving roller, can carry out immediately afterwards at its adding point by the plastic substance in the engraving groove.Available high-energy ray or visible light ray with quite high heating efficiency heats.On the other hand, the cooling of the surface of roller of its further part, can pass through cooling agent, as cooling water the inside of engraving roller is cooled off, cooling preferably is applied to the place that the engraving roller contacts coated fabric always, should be applied to the fusion range place on the low side 6 °～10 ° of the plastic substance in the groove at least always.After fabric was coated, in the point of plastic substance adding next time scope before, cooling was proceeded, and is able to guarantee that up to the temperature of carving surface of roller plastic powders has suitable perfusion or plastic paste has suitable flowability.
Using fusion range is that 110 °～115 ℃ copolyamide is during as the fusing caking property powder on basis, the engraving surface of roller, be lowered to 45～50 ℃ at the decanting point place of powder, the fusing adhesive material that is used for Underwear lining based on the low-pressure polyethylene powder, its fusion range is about 130 ℃, then is reduced to 65 °～75 ℃.When adopting other plastics, similarly temperature decline also is rational.In the subregion of engraving roller, the decanting point from the dispersal point of fabric to powder, the cooling of engraving roller can be strengthened by the air stream of blowing over above-mentioned surface of roller, and this air stream can provide by the mode that is blown into or sucks air.
The angular range of engraving surface of roller through giving heat, can enlarge according to the increase that is coated with seal material fusion range, concerning fusion range was copolyamide about 110 ℃, best scope was 50 °～120 °, and concerning low-pressure polyethylene, then be 80～160 °.
Utilize technology of the present invention, it is also passable to adopt powder to be coated with seal, allow to act on the temperature of the temperature on the fabric, more softer than already known processes, when the employing fusion range is 110～115 ℃ copolyamide powder, fabric is fed the heated pressure roller that goes on the engraving roller, its temperature is 140～200 ℃, and when being low-pressure polyethylene about 130 ℃ with fusion range, the surface temperature of its heated pressure roller is about 190～240 ℃.Like this, lining and synthetic material can be coated with seal on temperature is 150 ℃ roller, and its service speed is satisfactory, and any feel sclerosis that is caused by temperature does not take place.Even the use synthetic material, particularly those have high component propylene, and its web plate powder is coated with seal and can finishes under about 150 ° of temperature with proper speed, thereby also avoided the feel hardening phenomenon that causes owing to temperature is too high fully.
Its main meaning of technology of the present invention is to make production capacity to be significantly improved.
Accompanying drawing has shown the outstanding embodiment that finishes technology of the present invention especially, will narrate in more detail below.
Fig. 1 has shown the cross section of first embodiment of the present invention, and it is suitable for powder and is coated with seal.
Fig. 2 is the engraving roller and moulds the schematic partial cross sectional that device is given in cut-off, is the improvement of embodiment shown in Figure 1, is suitable for pasty state and is coated with seal.
Fig. 3 is the cross-sectional view of the 3rd device embodiment.
Fig. 4 is the cross-sectional view of the 4th device embodiment.
Fig. 5 is the cross-sectional view of the 5th device embodiment.
In the embodiment shown in fig. 1, rotation engraving roller 2 moves along the direction shown in the arrow 1, and it is a carving, has been uniform-distribution with cup-shaped groove on its surface, and engraving roller 2 cools off its inside by cooling water, especially Lower Half is cooled off.
Also has a pressure roller 4 against the engraving roller, it can rely on the engraving roller by pressing roller (drawing among the figure), and this pressure roller 4 is to be used for need are coated with the tissue layer 5 of seal via turning to roller 6,7 and giving hot roller 8 and move with the direction shown in the arrow 9.Above-mentioned fabrics is left from the top of pressure roller 4 along the direction shown in the arrow 10, gives hot roller as carving roller 2 and turning to roller 6,7 to be installed on the fixed axis.Pressure roller 4 and give hot roller 8 and can carry out inside and heat, as utilize deep fat.Top at engraving roller 2 is a container 11, and it is equipped with plastic powders, and described container is designed to infundibulate, in order to fill the cup-shaped cutting 3 on the engraving roller 2.The shell 12 of described container is a hollow, can hold cooling water 13.
In container 11, the agitator 14 that a traverse motion is arranged, it guarantees that the plastic powders 15 in the container 11 is loose all the time, on the lower edge of container 11, be equipped with and regulate scraper 16,17, it is in the tangential direction of the outer rim of engraving roller 2 approx, scraper 16,17 abut against surface of roller, scraper 17 is the scrapers as charge material in groove 3, and scraper 16 only is in order to prevent that plastic powders from flowing out from the bottom of shell of tank 12, along the roller travel direction shown in the arrow 1, a thermal treatment zone 18 that has the thermal radiation device is arranged in the back of container 11, and it faces toward surface of roller and close roller, and consistent with the shape of its outer rim.
Along engraving roller travel direction, in the pressure point back of pressure roller 4, promptly between this roller and plastics container 11, a device 19 is arranged, it blows to surface of roller with cold air, also has another device 20, and it is used for cold air is siphoned away from surface of roller.
Cold air can strengthen the inside cooling of engraving roller 2, and the surface of the engraving roller that turns to plastics container 11 is kept clean.
When carrying out technology of the present invention, by funnel shaped plastics container 11, plastic powders is full of the cup-shaped recess 3 of engraving roller, and the powder filler 21 in the groove 3, by heater 18 time, by heat intensive, in the heater back, leading to fabric 5 pressurized rollers 4 presses in that the way of engraving roller 2, plastic filler is cooled off, and in this pressure point, plastic filler 21 is pressed towards fabric, and be adhered on the fabric, they resemble a plastics spot 22 and continue motion in company with fabric, and they can also be again through a thermal treatment zone (not drawing on figure), for example, an infrared ray thermal treatment zone can sinter plastic filler into closely knit pearl and is bonded on the fabric.Sintering process also can be finished on conveyer belt, and above fabric was placed on, the speed of conveyer belt was identical with it or slightly higher, and conveyer belt does not draw in the drawings.After the cooling and roll extrusion of supercooling roller or smoothing roller, being coated with the fabric 5 that printed can batch, and cooling and squeezing roller do not draw among the figure.
An embodiment is arranged, be suitable for pasty state and be coated with seal, its equipment is identical with Fig. 1's, has just cancelled scraper shown in Fig. 1 17, and replace with powder scraper 23 as shown in Figure 2, its fixator 24 also is designed to hollow, and has cooling water to pass through, and scraper 23 is contained in the surface of engraving roller by certain angle, it is made up of thin elastic sheet metal, as steel disc,, and depart from the direction of surface of roller tangent line slightly so that make it under pressure, to bend towards surface of roller.The supply that is about to the pastel of initial stage gel is so finished, by a supply pipe 26 with by means of the help of pump, as peristaltic pump, the supply of pastel can be regulated, always have on the scraper 23 in a small amount so that make, the pastel of just using up at once, the gel time of pastel should be more longer than the time that stops at the scraper place, by being blown into cold air, the pastel 27 of confession can cool off, in case produce precocious gel, so just do not use the cooling device of a complexity again, that substantial difference of embodiment shown in Figure 3 and Fig. 1 only is a longer hot-zone of giving, the cornerite that gives 18 pairs of engravings of thermal radiation device roller of hot-zone almost reaches 180 °, in order to make the engraving surface of roller that gives the hot-zone that extended that a sufficient cooled region be arranged in the road of its process, pressure roller 4 more is partial to the top with respect to the embodiment shown in Fig. 1, more near container 11.
In the embodiment shown in fig. 4, fabric 5 is being pressed on the engraving roller by pressure roller 4 straight lines not only, it also rests on the local surfaces of engraving roller, contact with plastic filler 21, and make it and carve roller to be separated by a special roller 28 that breaks away from, in this case, produce difficulty when avoiding plastic filler to turn to fabric 5,18 lower ends extend to the feed point of heating fabric 5 to determinative cooled region from the thermal treatment zone, moreover, also can extend the dispersal point of the fabric that is cooled.In the zone of dispersal point, breaking away from roller 28 can have certain interval with the surface of engraving roller 28, and this disengaging roller does not preferably heat, but can heat internally yet.In the embodiment of Fig. 5, the guiding device of tissue layer can be selected, and should be able to make fabric lead to that zone of winding roller at it along the direction of arrow 29 indications, and the round spot decorative pattern that stamps that is coated with is not the upper surface at fabric, but at its lower surface.Tissue layer is carried out above engraving roller 2 towards the motion of giving hot roller 8.Fabric 5 is transferred to heated pressure roller 4 from giving hot roller 8, contacts the tissue layer 5 that is coated with seal with wire, and the direction in the bottom of heating roller with arrow 29 moves forward, up to batching a little.Thus, can pass through an infrared heater 30, make the seal fabric that is coated with that is in the fabric lower surface carry out sintering again.
Example 1
Adopt the device of a kind of embodiment as shown in Figure 1, the girth of wherein carving roller 2 and heatable pressure roller 4 is 67cm, pressure roller 4 pressurizes to engraving roller 2 with the pressure of 3 crust in operation, and thermal radiation device 18 is as a shock wave irradiator, and its surperficial quantity of heat production is 50kw/m
2, to heat the engraving roller of 100 ° of cornerite scopes, the cornerite of following with 150 ° cools off, until fabric 5 pressurized pressure point in the engraving roller.The girth that gives hot roller 8 is about half of giving hot roller 4.
If want to cancel the heat of giving of carving the roller local surfaces in the invention, and the surface temperature at funnel place remains 50 ℃, then plastic powders will no longer shift, because powder particle is removed from groove 3 very difficult.On the other hand, if the temperature of heating roller is elevated to more than 220 °, in order to be coated with seal, then adhesive-bonded fabric will become and tarnish, and sensitive paper is the same and very hard, has lost the characteristic of textile, and intensity has also descended.
Example 2
Under the condition as example 1, the crochet needle woven fabric of sheet is coated with seal, contains the knitting polyester footpath yarn of 33dtex/15f in the fabric, after three straight line sewing, yarn generation lateral shift in footpath is carried out another hand-manipulating of needle mark, the footpath yarn density is 26, and in every hand-manipulating of needle mark, the straight chain propylene is fine to be yarn и
m28 are used as weft yarn, and weft count is 13/cm.
Without the fabric that is coated with seal, give heat to 160 ℃, its weight is 65g/m
2, 12g/m is arranged
2Copolyamide coated, can obtain a kind of softness, the solid lining that can fix by flatiron, its cementability is fabulous, its sticky object is coated and make suitable point-like thing with the form of garden pearl.Do not make fabric be subjected to the destruction of heat because being coated with the seal condition effect, being coated with seal process further groove also is empty, do not bring any problem, can carry out a test, coat the heat of giving of among process cancellation the present invention engraving roller 2 being carried out certain cornerite scope, other conditions are identical, then carve not discharges material of groove 2.Be coated with a kind of plastics constituent and print on the fabric, the temperature of hot roller increases to 220 ℃, thereby causes that fabric tarnishes and the feel hardening.
Example 3
With respect to example 1 and example 2, the following seal condition that is coated with changes:
Inject capable local surfaces heating by amplitude of shock waves: 120 °
Carrier layer is coated with the preceding cooling zone of seal: 130 °
Depth of groove 0.24mm
Groove diameter 1.05mm
Hot melting cohesion body initial stage component:
48PPW Vestolit 6503
52PPW butyl benzene phthalic acid ester
6.5PPW mountain Yu acid
60 ℃ of engraving roller temperature
240 ℃ of heating roller temperature
The brokentwlllweave fabric of carrier layer cotton/viscose staple fibre is through fluffing, destarch, low shrink process
The cotton и of footpath yarn
m60
The close 25/cm in footpath
Weft yarn viscose staple fibre и
m20
Filling density 8.5/cm
Fabric initial stage weight 85g/m
2
Be coated with seal amount 50g/m
2
Be coated with print-out rate 12m/min
In this example, adopt the muddled seal of plastisol, above-mentioned stripping is stuck with paste scraper and is used.The amount of the paste that scraper is supplied with just satisfies consumption.It is shorter than its gel time that paste enters the time of scraper, in addition, sticks with paste the cold air cooling again that is blown into, and is coated with India and China and do not break down, and can accurately shift according to the profile of plastisol constituent.In experiment, there is not the local area among the present invention to carry out the width of cloth and penetrate heating to the engraving roller, originally groove 12 only has partial material to emit, and the groove that continues is by total blockage.At this moment can not improve the temperature of engraving roller, to such an extent as to carving rapid early period of origination gelatin phenomenon on the roller.It is very difficult avoiding too early initial stage gel by the temperature that improves the engraving roller.
Example 4
In this example, be coated with seal for the cotton-viscose fabric in the example 3 with polyamide powder, with respect to example 1 and example 2, following condition is modified:
240 ℃ of hot roller temperature
Carrier material comes from example 3
Be coated with print-out rate 30m/min
The stationarity fabric of Sheng Chaning has good garden bead shaped particle like this, and groove is emitted filler fully being coated with India and China.Do not have among the present invention to the engraving surface of roller give heat, when other conditions were constant, identical fabric also can coat, just speed has to become about 12m/min, to produce the approximate seal effect that is coated with.
Example 5
Narrated a kind of process that coats of Underwear lining in this example, with respect to example 1 and example 2, condition changes as follows:
The diameter 0.50mm of groove
The degree of depth 0.20mm of groove
The gap 1/30 time=0.85mm of groove
Fusing binding agent low-pressure polyethylene powder 0～180 μ
70 ℃ of engraving roller temperature
240 ℃ of heating roller temperature
120 ° of the heated parts of engraving surface of roller
130 ° of the cooling zones of continuing before carrier layer is supplied with
The carrier layer bafta is through removing pulp bleaching, fluorescent
Brighten no shrink process
Footpath yarn и
m34
20.5cm
Weft yarn и
m34
Filling density 20.5cm
The initial stage weight 125g/m of fabric
2
Be coated with the weight 22g/m of seal thing
2
Be coated with print-out rate 30m/min
When coating had been coated with seal and sintering on the support fabric after, it was rolling with ironing apparatus to be coated with the seal thing.Be coated with India and China, the filler in the groove fully, with the flower type consistently shift.Fabric remains unchanged being coated with India and China's whiteness.
Other conditions are constant, the heat of giving among cancellation the present invention to the engraving roller, and then speed has to drop to 12m/min, be coated with the seal effect to keep approximately uniform, but the whiteness of carrier material obviously descends yellowing.
From example 1 and example 2 as can be seen, utilize technology of the present invention, can overcome powder and be coated with the quality shortcoming that India and China existed in the past.
From example 3 as can be seen, according to technology of the present invention, when avoiding giving ripe incipient gel, the preservation problem of pastel liquid also can be overcome.Operation of the present invention is to carry out under the lower situation of engraving roller temperature, and at this moment gelation rate is lowered.And have very big economic worth, cooling and mixing apparatus complicated before filling can save.
From example 4 and example 5 as can be seen, utilize technology of the present invention, working ability obviously improves.
The present invention can also finish the 25 36 911 described technologies as DE-PS, and promptly Powdered two point is coated with seal, can be coated with the plastics that two layers of mutual mulberry of seal add respectively and be coated with the seal point.
In technology of the present invention, the shaping of the emission performance of filler and plastics garden pearl is further strengthened in the groove, method is as DE-PS 25 36 911, by a kind of scraper edge of tangentially using, it relatively the roller tangent line do adjusting less than 90 ° of angles, be not that loosely blows into and goes in the groove and compress densely thereby make powder.This compression also can be used for pastel, and it also is very suitable adopting and scraping this identical measure of sword.Leave be coated with the seal line after, pastel-it compare with powder compressible hardly-be carried out filling, be higher than sculpture surface to cause filler, the filling surface of this moment forms the curved surface of spill." cross and fill " method of this groove can be strengthened its release performance as powders compression.
Claims (20)
1, a kind of application pasty state or Powdered plastic substance, for example with the form of hot-melt adhesive, utilize the surface to have the rotation roller of groove, textile or other flexible fabrics are carried out the technology that web plate is coated with seal, surface of roller is heated and plastic substance is inserted in the above-mentioned groove, after the surface of engraving roller was heated, the fabric that will coat was put into, and the plastic substance that is carrying then in the above-mentioned groove leaves above-mentioned engraving roller.It is characterized in that after above-mentioned groove was filled with plastic substance, the surface of engraving roller was heated on its circuit, the thermal treatment zone to the cornerite of engraving roller from 20 °～180 °.Along with the raising of plastic substance temperature in the above-mentioned groove, the surface of roller is cooled on the circuit before the feeding point that will coat fabric, and its cornerite scope is greater than 60 °.
2, as the technology of claim 1, it is characterized in that cooling off is before the fabric that will coat feeding point, to engraving roller cornerite is to carry out in 60 °～180 ° the scope.
3, as the technology of claim 1, it is characterized in that the heating of surface of roller on its circuit to having groove, be that the feeding point of the plastic substance in groove carries out afterwards.
4,, it is characterized in that the surface of roller that has groove is carried out after said heating immediately in the cooling on its circuit as the technology of claim 1.
5, as the technology of claim 1, it is characterized in that cooling off and be performed until the fabric that will coat and be fed in the surface of roller, the fusion range of this plastic substance is on the low side approximately 10 °～60 °.
6, as the technology of claim 1, it is characterized in that cooling off is to proceed after the feed point of the fabric of carving surface of roller.
7, as claim 1 or 6, it is characterized in that the fabric feed point back of engraving surface of roller is cooled off, so that have the surface of roller of groove, obtain a suitable temperature at the interpolation point place of plastic substance, guarantee the placeability of the plastic powders that added or the flowable of the plastic paste that added.
8,, it is characterized in that Powdered plastic substance can adopt the copolyamide powder, copolyesters powder, the powder of polyvinyl acetate system, low pressure ethylene powder, vinyl acetate and ethylene copolymer powders or Polyurethane as the technology of claim 1.
9, as the technology of claim 1, it is characterized in that the plastic paste material can adopt plastisol, it contains the softening agent of polyvinyl chloride powder and liquid, is a kind of flowable mixture.
10, as the technology of claim 1 and 8, it is characterized in that when the copolyamide that with fusion range is 110 °～115 ℃ is the hot-melt adhesive powder of base the engraving surface of roller is cooled to the adding point of plastic substance on the roller always, temperature is 45 °～50 ℃.
11, as the technology of claim 1 and 8, it is characterized in that the engraving surface of roller is cooled to the adding point of plastic substance on the roller always when with fusion range being low-pressure polyethylene powder about 130 ℃ during as the hot-melt adhesive powder, temperature is 65 °～75 ℃.
12,, it is characterized in that after being coated with the fabric that printed and leaving the cooling that has the engraving surface of roller of cutting realizes by being blown into cold air to the engraving surface of roller as the technology of figure claim 1.
13, as the technology of claim 1, it is characterized in that, is 110 °～115 ℃ copolyamide powder during as plastic substance when using fusion range, and the temperature of pressure roller is raised to 140 °～200 ℃.
14, as the technology of claim 1, it is characterized in that when using fusion range be low-pressure polyethylene powder about 130 ℃ during as plastic substance, the surface of pressure roller is heated to 190 °～240 ℃.
15, as the technology of claim 1, the heating that it is characterized in that carving surface of roller penetrates heating by the width of cloth and Convective Heating is carried out.
16, as the technology of claim 1, the cooling that it is characterized in that carving surface of roller is to be undertaken by the interior cold of surface of roller, for example makes cooling water by carving roller.
17, carry out the equipment of in the claim 1 to 16 one or more multinomial technology, it is characterized in that outer rim at the engraving roller, at injection device place a heating region is arranged along its direction of rotation near plastic substance, its cornerite on surface of roller is 20 °～180 °, near this back, thermal treatment zone is a cooling zone, it extends to the feed point that will coat fabric on the engraving surface of roller always, and its cornerite is greater than 60 °.
18, as the device of claim 17, it is characterized in that there is a heater the above-mentioned thermal treatment zone, it is in the face of the surface of engraving roller and tightly against it.
19,, it is characterized in that its heater is the heat ray type as the device of claim 18.
20, as the device of claim 17, it is characterized in that coated fabric leaves the later cooling zone of roller, have one cold air is blown into the device of engraving surface of roller, also have the equipment arbitrarily that this cold air is siphoned away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101833.5A CN1003633B (en) | 1985-04-01 | 1985-04-01 | Process and device for the screenprint application of plastic substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101833.5A CN1003633B (en) | 1985-04-01 | 1985-04-01 | Process and device for the screenprint application of plastic substances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101833A true CN85101833A (en) | 1987-01-10 |
| CN1003633B CN1003633B (en) | 1989-03-22 |
Family
ID=4792089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101833.5A Expired CN1003633B (en) | 1985-04-01 | 1985-04-01 | Process and device for the screenprint application of plastic substances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003633B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264021A (en) * | 2016-08-12 | 2017-01-04 | 广州曼廷新材料有限公司 | A kind of domestic plastic floor mat and manufacture method thereof |
| CN113774680A (en) * | 2021-09-29 | 2021-12-10 | 吴江市涂泰克纺织后整理有限公司 | Production process and production equipment of convex plain-woven fabric |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878099B (en) * | 2014-04-10 | 2016-05-18 | 长兴县志纬服装辅料有限公司 | A kind of powder point coating production line of producing for waist lining |
-
1985
- 1985-04-01 CN CN85101833.5A patent/CN1003633B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264021A (en) * | 2016-08-12 | 2017-01-04 | 广州曼廷新材料有限公司 | A kind of domestic plastic floor mat and manufacture method thereof |
| CN113774680A (en) * | 2021-09-29 | 2021-12-10 | 吴江市涂泰克纺织后整理有限公司 | Production process and production equipment of convex plain-woven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1003633B (en) | 1989-03-22 |
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