A kind of high intensity spray painting clothTechnical field
The present invention relates to spray painting cloth technical fields, more particularly to a kind of high-intensitive spray painting cloth.
Background technique
Outdoor advertising is that a company establishes brand concept, keeps the strategic selection of corporate image.Outdoor advertising is not onlyIt wants attractive, makes us gifted with an extraordinary retentive memory, should also include good air brushing effect, tension performance etc..If in air brushing cloth,If the intensity of silk is inadequate, establishment structure is bad, under dust storm or the compound action of other extraneous factors, the outer surface of clothIt is possible that the problems such as damaging, tearing or deform, PVC may also be removed from base fabric.
Spray painting cloth is as outdoor advertising spray-painting material, it is desirable that existing performance includes: A, excellent picture color reproducibility；B, excellent index of refraction, picture can be made, which more preferably to show, influences picture effect without generating light leakage phenomenon；C, physical and mechanical propertyAspect, excellent tear value and peel value；D, excellent outdoor weathe resistance；E, meet product grammes per square metre lighter under above-mentioned condition withFacilitate outdoor construction.
That there are bottom grammes per square metre indexs of refraction is poor for existing product, mechanical property is insufficient, Gao Kechong product is inconvenient to construct, nearly allAll there is outdoor weathe resistance deficiency in product.
Summary of the invention
The object of the present invention is to provide a kind of high-intensitive spray painting cloth, comprehensive outdoor weathe resistance can be strong, is conducive to outdoor construction.
To achieve the above object, the present invention provides a kind of high-intensitive spray painting cloth, the constituent of spray painting cloth include surface layer,Bottom and grid cloth, between the surface layer and the bottom, the constituent of surface layer and bottom includes the grid clothPolyvinyl chloride resin, DINP plasticizer add epoxidized soybean oil, filler, titanium dioxide and pigment, the surface layer, the bottom and the gridCloth is combined by heat posted technique.
Preferably, the surface layer is 160-185g, and the bottom is 136-149g.
Preferably, the composition and ratio of the surface layer are 100 parts of polyvinyl chloride resin, 34-38 parts of DINP plasticizer plus 2kg and ringOxygen soybean oil, 75 parts of filler, 10-20 parts of titanium dioxide and pigment.
Preferably, the composition and ratio of the bottom are 100 parts of polyvinyl chloride resin, 34-38 parts of DINP plasticizer plus 2kg epoxySoybean oil, 80-100 parts of filler, 10-20 parts of titanium dioxide and pigment.
Preferably, the specification of the grid cloth is the high-strength gauze of 840D*840D/9*9.
Preferably, the step of heat posted technique is as follows:
S1, bottom carry out stretching, extension transmission, successively lead by the second largest roller, third deflector roll and the 4th deflector roll, bottom in thirdIt is preheated on roller, and is extended under the clamping of third deflector roll and the 4th deflector roll, the heating temperature of the second largest roller is 180-190DEG C, the processing temperature of third deflector roll and the 4th deflector roll is 165-170 DEG C；
S2, by surface layer together with grid cloth after hot pressing from top around the first big roller, fit together and be transmitted, firstThe processing temperature of big roller is 175-185 DEG C；
S3, surface layer, the composite layer of grid cloth and bottom transmit outward in the lower section of the first big roller, then in turn through the 5thDeflector roll and the 6th applique roller, the processing temperature of the 5th deflector roll are 170-180 DEG C, and the processing temperature of the 6th applique roller is 25-30 DEG C.
Preferably, the surface layer and the preparation process of the bottom are completed by calendering technology.
Preferably, steps are as follows for the calendering technology:
It is placed in cold mixing cylinder and mixes after being stirred in each comfortable pulverizer of S1, first material；The powder time is beaten in pulverizerIt is 340-380 seconds, beating powder temperature is 80-110 DEG C, and material temperature is 100-140 DEG C；The powder time is beaten in cold mixing cylinder 80-120 seconds, beat powder5-20 DEG C of temperature；
S2, the material after cold mixing cylinder stirs evenly convey outward by planetary extruder, the material extrusion temperature of planetary extruderIt is 180-210 DEG C, material extrusion speed is 500-700 revs/min；
S3, the material after planetary extruder filter in filter after pricking turbine, roll turbine temperature refining temperature and are180-195℃；Filter die head temperature is 165-195 DEG C, and barrel temperature is 145-170 DEG C, and speed is 500-700 revs/min；
S4, material after filtering are rolled in calendering host, then in cooling slave after knurling rolls are embossedMiddle cooling；Wherein rolling the first roller in host is 187-205 DEG C, and the second roller is 172-185 DEG C, and third roller is 185-195 DEG C, theFour-roller is 145-165 DEG C；Being embossed roll temperature is 35-45 DEG C, and the temperature of cooling slave is 22-32 DEG C.
Therefore, a kind of high-intensitive spray painting cloth of the invention has the beneficial effect that:
1) product of the invention mechanics, it is weather-proof, in terms of have excellent performance, it is intended to it is existing to solve lamp house cloth industryProperties of product associativity it is bad, hiding rare, lancinating, fissility, portability, weatherability can not the problem of；
2) present invention substitutes tradition DOP plasticizer, DINP volatility, migration, nontoxicity by using DINP plasticizerIt is superior to DOP, can assign product good fast light, heat-resisting, ageing-resistant performance, comprehensive promotion product outdoor weathe resistance energy；
3) by using the high-strength gauze of 840D*840D/9*9, the tear resistance of product can reach very excellent the present inventionLevel, and screen cloth grammes per square metre is lower, does not increase construction weight；
4) present invention is by whole face counterdie grammes per square metre proportion, by grammes per square metre control while 380g, effectively realizes eachThe excellent combination of kind performance, and product weight is light and handy, is very beneficial for outdoor construction；
5) present invention is using the surface layer in technical solution, bottom PVC film processing compound, and the hiding rare of product is excellent, pictureOutdoor overall look and feel are excellent；
6) present invention uses high speed heat posted technique (speed was up to 45m/ minutes), and product face counterdie, which is securely pasted, to be integrated,Product stripping performance is excellent, and because process velocity is fast, effectively reduces specific energy consumption；
7) the embossing water temperature low temperature that the present invention uses is constant, guarantees the embossing of face counterdie uniformly, and mute degree is consistent, and product stores nothingAdhesion phenomenon, both ends are consistent with intermediate color after printing, and picture is bright-coloured uniform.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the flow chart of heat posted technique in a kind of high-intensitive spray painting cloth of the present invention；
Fig. 2 is the flow chart of calendering technology in a kind of high-intensitive spray painting cloth of the present invention.
Appended drawing reference
1, the first big roller；2, the second largest roller；3, third deflector roll；4, the 4th deflector roll；5, the 5th deflector roll；6, the 6th applique roller；7, bottom；8, surface layer；9, grid cloth；10, pulverizer；11, cold mixing cylinder；12, planetary extruder；13, turbine is pricked；14, filter；15, roll host；16, the first roller；17, the second roller；18, third roller；19, four-roller；20, knurling rolls；21, cooling slave.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Fig. 1 is the flow chart of heat posted technique in a kind of high-intensitive spray painting cloth of the present invention, and Fig. 2 is a kind of high-intensitive spray of the present inventionThe flow chart of calendering technology in cloth is drawn, as shown, a kind of high intensity spray painting cloth, the constituent of spray painting cloth includes surface layer, bottomLayer and grid cloth, surface layer 160-185g, bottom 136-149g, the specification of grid cloth are the high-strength gauze of 840D*840D/9*9Cloth.
For grid cloth between surface layer and bottom, the constituent of surface layer and bottom includes polyvinyl chloride resin, DINP plasticizerAdd epoxidized soybean oil, filler, titanium dioxide and pigment, the composition and ratio of surface layer are 100 parts of polyvinyl chloride resin, DINP plasticizer 34-38Part plus 2kg and epoxidized soybean oil, 75 parts of filler, 10-20 parts of titanium dioxide and pigment.The composition and ratio of bottom are polyvinyl chloride resin 100Part, 34-38 parts of DINP plasticizer plus 2kg epoxidized soybean oil, 80-100 parts of filler, 10-20 parts of titanium dioxide and pigment.
Surface layer, bottom and grid cloth are combined by heat posted technique.
The step of heat posted technique, is as follows:
S1, bottom carry out stretching, extension transmission, successively lead by the second largest roller, third deflector roll and the 4th deflector roll, bottom in thirdIt is preheated on roller, and is extended under the clamping of third deflector roll and the 4th deflector roll, the heating temperature of the second largest roller is 180-190DEG C, the processing temperature of third deflector roll and the 4th deflector roll is 165-170 DEG C；
S2, by surface layer together with grid cloth after hot pressing from top around the first big roller, fit together and be transmitted, firstThe processing temperature of big roller is 175-185 DEG C；
S3, surface layer, the composite layer of grid cloth and bottom transmit outward in the lower section of the first big roller, then in turn through the 5thDeflector roll and the 6th applique roller, the processing temperature of the 5th deflector roll are 170-180 DEG C, and the processing temperature of the 6th applique roller is 25-30 DEG C.
Surface layer and the preparation process of bottom are completed by calendering technology.
Steps are as follows for calendering technology:
It is placed in cold mixing cylinder and mixes after being stirred in each comfortable pulverizer of S1, first material；The powder time is beaten in pulverizerIt is 340-380 seconds, beating powder temperature is 80-110 DEG C, and material temperature is 100-140 DEG C；The powder time is beaten in cold mixing cylinder 80-120 seconds, beat powder5-20 DEG C of temperature；
S2, the material after cold mixing cylinder stirs evenly convey outward by planetary extruder, the material extrusion temperature of planetary extruderIt is 180-210 DEG C, material extrusion speed is 500-700 revs/min；
S3, the material after planetary extruder filter in filter after pricking turbine, roll turbine temperature refining temperature and are180-195℃；Filter die head temperature is 165-195 DEG C, and barrel temperature is 145-170 DEG C, and speed is 500-700 revs/min；
S4, material after filtering are rolled in calendering host, then in cooling slave after knurling rolls are embossedMiddle cooling；Wherein rolling the first roller in host is 187-205 DEG C, and the second roller is 172-185 DEG C, and third roller is 185-195 DEG C, theFour-roller is 145-165 DEG C；Being embossed roll temperature is 35-45 DEG C, and the temperature of cooling slave is 22-32 DEG C.
Therefore, for the present invention using a kind of above-mentioned high-intensitive spray painting cloth, comprehensive outdoor weathe resistance can be strong, is conducive to outdoor construction.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited,Although the present invention is described in detail with reference to preferred embodiments, those skilled in the art should understand that: its according toSo can be with modification or equivalent replacement of the technical solution of the present invention are made, and these modifications or equivalent replacement cannot also make to repairTechnical solution after changing is detached from the spirit and scope of technical solution of the present invention.