CN101353456B - Polyethylene plastic for color thermoprint and thermoprint method thereof - Google Patents
Polyethylene plastic for color thermoprint and thermoprint method thereof Download PDFInfo
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- CN101353456B CN101353456B CN2008101957838A CN200810195783A CN101353456B CN 101353456 B CN101353456 B CN 101353456B CN 2008101957838 A CN2008101957838 A CN 2008101957838A CN 200810195783 A CN200810195783 A CN 200810195783A CN 101353456 B CN101353456 B CN 101353456B
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Abstract
The invention relates to a polyethylene plastic for color heat printing and a heat printing method thereof. The heat printing method aims at the surface of the polyethylene plastic, uses heat printing powder foil as the membrane carrier pigment, uses the die with character and/or pattern working faces as the tool and uses hot press method to transfer the pigment and character and/or pattern to the surface of the polyethylene plastic. The invention is characterized in that: the polyethylene plastic comprises the components with the following portions: 80 to 100 weight portions of high density polyethylene, 3 to 15 weight portions of polypropylene, 15 to 30 weight portions of inorganic powder filler, wherein, the inorganic powder filler is calcium carbonate, talcum powder, kaolin and clay; the granularity of the inorganic powder filler is between 700 meshes to 1300 meshes; concave and convex patterns are pressed on the die working face; the hot pressing pressure is 2MPa to 9MPa; the hotpressing temperature is 130 DEG C to 210 DEG C; and the hot pressing time is 10s to 40s. The invention solves the problem of PE plastic heat printing and the PE plastic after heat printing has high pigment adhesion fastness.
Description
Technical field
The present invention relates to surperficial thermoprint technical field, particularly a kind ofly be applicable to polyethylene (PE) plastic material of surperficial thermoprint colored text and pattern and in this material surface thermoprint colored text and method of patterning.
Background technology
Polyethylene (PE) is the later plastics variety rapidly that but develops of a kind of industrialization age, at present, the output of whole world PE accounts for about 20% in the synthetic resins total amount, whole world annual production is about 5,000 ten thousand tons, and the present annual production of China has reached more than 3,000,000 tons.PE belongs to universal thermoplastics, and its intensity is higher, and water-absorbent is little, and good electrical properties and radiation resistance are arranged, and over-all properties is better, can be widely used in industrial and agricultural production and the people's lives.Up to the present, can be described as a kind of flourishing long time interchangeable heat thermoplastic plastic.
But the molecule symmetry of polyethylene (PE) is nonpolarity, and intermolecular reactive force is very little, mechanical property is not high, and is poor with other material compatibility, and this characteristic causes the thermoprint performance of PE plastics not good, be difficult to thermoprint, the pigment attachment fastness extreme difference that stamps, the external force wiping promptly can come off a little.Font and pattern for the thermoprint small area, hot stamping effects also can be exempted from strong cohesiveness after by surface treatment and is subjected to, in case and large-area font of thermoprint and pattern, it is incomplete that thermoprint easily takes place, existing thermoprint goods produce a large amount of waste products, so generally can not adopt plate (or body) conduct of PE plastic material by the base material of thermoprint.The PE plastics have lost application in this respect, wouldn't be losses greatly of plastics industry.Therefore, how improving the thermoprint performance of PE plastics, is the anxious problem for the treatment of that industry technician solves.
Summary of the invention
The present invention is a kind of vinyon and hot stamping method thereof that is used for colored thermoprint, its first purpose provides a kind of special-purpose vinyon that is suitable for colored thermoprint, second purpose provides a kind of colored hot stamping method of method, particularly high surface area of carrying out colored thermoprint on this vinyon surface.
For achieving the above object, the technical scheme of plastic material of the present invention is:
A kind of vinyon that is used for colored thermoprint is characterized in that: the composition of raw materials of this vinyon comprises following composition and content thereof:
High density polyethylene(HDPE) 80～100 parts by weight;
Polypropylene 3～15 parts by weight;
Inorganic powder weighting agent 15～30 parts by weight;
Wherein, the inorganic powder weighting agent is selected a kind of or two kinds and the two or more mixing in the following material: lime carbonate, talcum powder, kaolin and clay;
The particle diameter of inorganic powder weighting agent is at 700 orders～1300 orders.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described high density polyethylene(HDPE) (HDPE) is also referred to as low pressure polyethylene by its manufacture method, is the main body composition of these plastics; Described polypropylene (PP) adds this composition and is in order to improve the deficiency of some performance, tensile strength for example, and hardness, tired and resistance toheats etc. are improved the consistency of these plastics; Described inorganic powder weighting agent, here be meant lime carbonate, talcum powder, kaolin or clay, the order number of weighting agent has particular requirement, adding this composition is in order to reach physically modified, increase the microcosmic " roughness " of this frosting, it is sightless concavo-convex to make this frosting have trickle naked eyes, so that increase the sticking power of pigment during thermoprint, increase consistency, also do not destroy the smooth and beautiful appearance on plastic body surface simultaneously.And above-mentioned lime carbonate, talcum powder, kaolin or clay the best adopt the preparation of the filling master batch form of outsourcing, also contain lubricant, coupling agent and the dispersion agent of small portion in the masterbatch except that inorganic powder.
Further the optimum proportion scope is:
High density polyethylene(HDPE) (HDPE) 85～95 parts by weight;
Polypropylene (PP) 3～10 parts by weight;
Inorganic powder weighting agent 15～25 parts by weight;
The particle diameter of inorganic powder weighting agent is at 700 orders～1250 orders.
2, in the such scheme, contain in the composition of raw materials of described vinyon:
Linear low density polyethylene (LLDPE) 5～10 parts by weight.
3, in the such scheme, contain in the composition of raw materials of described vinyon:
New LDPE (film grade) (LDPE) 5～15 parts by weight.
The effect of adding this composition is rigidity and a flexility of regulating this plastic material.
4, in the such scheme, contain in the composition of raw materials of described vinyon:
Anti-ultraviolet aging agent 0.5～1 parts by weight;
Internal lubricant 0.2～0.5 parts by weight;
External lubricant 0.2～0.5 parts by weight.
The effect of described interpolation anti-ultraviolet aging agent is the anti-light aging ability that increases these plastics, and concrete anti-ultraviolet aging agent can be adopted UV-531 (benzophenone), UVA series (benzotriazole category), HALS series (hindered amines).
Described internal lubricant specifically can adopt stearic acid, butyl stearate etc., and external lubricant can adopt stearic amide, solid paraffin etc.
And, when anti-oxidant the requirement, also can in the above-mentioned raw materials prescription, add oxidation inhibitor again, for example add antioxidant 264, the antioxidant 264 chemistry is called 2, and 6-di-t-butyl-4-cresols, its addition are the 0.1-0.5% of amount of resin
The technical scheme of hot stamping method of the present invention is:
A kind of vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon;
The composition of raw materials of described vinyon comprises following composition and content thereof:
High density polyethylene(HDPE) 80～100 parts by weight;
Polypropylene 3～15 parts by weight;
Inorganic powder weighting agent 15～30 parts by weight;
Wherein, the inorganic powder weighting agent is selected a kind of or two kinds and the two or more mixing in the following material: lime carbonate, talcum powder, kaolin and clay;
The granularity of inorganic powder weighting agent is at 700 orders～1300 orders;
Hot pressing pressure is 2Mpa～9Mpa, behind selected pressure, on the hot pressing face on vinyon surface the actual pressure of each point drop on average pressure ± 15% interval, comprise end points; Hot pressing temperature is 130 ℃～210 ℃, after selected temperature, on the mould action face each point actual temperature drop on selected temperature ± 10 ℃ of intervals, comprise end points; Hot pressing time is 10 seconds～40 seconds;
Pressure selected and temperature meet following condition in described hot pressing pressure and hot pressing temperature scope: when elected level pressure power was less than or equal to 8Mpa, selected temperature was more than or equal to 160 ℃; When being elected to level pressure power greater than 8Mpa, selected temperature is less than or equal to 180 ℃.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described " thermoprint powder paper tinsel " be a kind of be carrier with the plastic film, coating pigment layer on carrier and the special-purpose paper tinsel of the plastics thermoprint that constitutes.Be that this special use paper tinsel is overlying on by the surface of thermoprint vinyon during thermoprint,, make the pigment on the special-purpose paper tinsel of plastics thermoprint that the heat transfer take place, and be attached to by on the surface of thermoprint vinyon then in the mode of mould heat pressure.
Described " thermoprint powder paper tinsel " adopts Shenzhen fringe China trade Co., Ltd to sell, the special-purpose paper tinsel of the thermoprint that U.S. CFC company produces.
2, in the such scheme, the literal of described mould is or/and the pattern plane of action is provided with ridge design, the ridge design degree of depth is 0.5mm～1mm, but the contact area of this some design on the basis of thermoprint, further having increased pigment and substrate surface, the sticking power of increase pigment.The literal of mould described here or/and the pattern plane of action when being meant thermoprint on the mould with the face that is contacted by the thermoprint frosting.Described " ridge design " further preferred depths is 0.5mm～0.75mm, the decorative pattern shape of described ridge design is not limit, normally by the protruding in length and breadth rectangular grid-shaped that constitutes, can certainly constitute by rectangular or S bent-strip and other decorative patterns of the parallel projection of a rule.In fact, if the literal of described mould is not or/and have ridge design on the pattern plane of action, just the plane thermoprint also is practicable.
3, in the such scheme, " hot pressing pressure is 2Mpa～9Mpa, behind selected pressure, on the hot pressing face of polyethylene frosting the actual pressure of each point drop on average pressure ± 15% interval, comprise end points; " in this word, described " hot pressing pressure " be mould suppressing action and pressure of keeping when being meant hot pressing; When described " hot pressing face " is meant hot pressing by on the frosting of thermoprint by the contact surface of mould hot pressure; Described " average pressure " by the suffered pressure of whole hot pressure contact surface (instant heating pressure surface) on the frosting of thermoprint, promptly pressure selected is divided by the numerical value that is obtained by the area of the whole hot pressure contact surface on the frosting of thermoprint when being meant hot pressing.
4, in the such scheme, in the hot pressing course of processing, below by the thermoprint vinyon, rubber buffer is set, the distributing homogeneity of being exerted pressure in the vinyon surface with the plane of action of regulating mould.This rubber buffer is best, and to adopt shore a hardness HRa be 60 ± 5, and thickness is the technically classified rubber plate of 1mm～8mm, its area should 〉=area of hot pressing face, be not sufficiently complete with the contact that prevents mould four limits or graph edge.
5, in the such scheme, further the range of choice of preferable hot pressing pressure, hot pressing temperature and hot pressing time is: hot pressing pressure is 6Mpa～8Mpa; Hot pressing temperature is 150 ℃～210 ℃; Hot pressing time is 15 seconds～35 seconds.Optimum range is: hot pressing pressure is 7Mpa～8Mpa; Hot pressing temperature is 175 ℃～195 ℃; Hot pressing time is 25 seconds～31 seconds.
As shown in Figure 4, hot pressing pressure, hot pressing temperature and hot pressing time three's curved line relation is selected shown in actual can the going up by figure as figure, and on rule, when hot pressing pressure is big, hot pressing temperature will reduce relatively, the also corresponding shortening of hot pressing time; When hot pressing temperature is high, hot pressing pressure will reduce relatively, the also corresponding shortening of hot pressing time; Hot pressing time in short-term, hot pressing pressure will improve relatively, hot pressing temperature is also corresponding increases; Among hot pressing pressure, hot pressing temperature and the hot pressing time three, requirement to hot pressing time is not strict especially, facts have proved,, can prolong or shorten hot pressing time by thermoprint area, the degree of depth, decorative pattern situation and plane situation as long as control well under the situation of best hot pressing pressure and hot pressing temperature.
As shown in Figure 4, intermediary shade filling part is the optimum valuing range of hot pressing pressure, hot pressing temperature and the hot pressing time of present embodiment, and can extend to 34 seconds on the hot pressing time or foreshorten to 20 seconds, increases by two preferable regulatory regions with this.
6, in the such scheme, described " order " is the feeling the pulse with the finger-tip number, is meant the granularity or the fineness degree of material, and General Definition is meant in 1 inch * 1 inch area what mesh count are arranged, i.e. the mesh count of screen cloth, and how many order numbers material can promptly be defined as by this mesh.The order number is big more, and the exponent material granularity is thin more, and the order number is more little, and the exponent material granularity is big more.
Principle of design of the present invention is: the present invention studies from the material prescription angle, develop a kind of PE plastics that are used for thermoprint, these PE plastics are the main body composition with high density polyethylene(HDPE) (HDPE) mainly, add polypropylene (PP) and inorganic powder weighting agent, reach blending and modifying, increase the microcosmic " roughness " of material surface, further improve the avidity between PE plastics and thermoprint powder paper tinsel, make the PE plastics when thermoprint, can better adhere to paint, improve the attachment fastness of pigment.
The present invention studies from the angle of hot stamping method, develops the colored hot stamping method of a kind of PE.This hot stamping method has following improvement, and the PE plastics of an employing speciality are base material, and these PE plastics promptly are the above-mentioned PE plastics that are exclusively used in thermoprint; The 2nd, on hot stamping process, control pressure of hot stamping, blocking temperature and thermoprint time, and the homogeneity that guarantees pressure of hot stamping and temperature.Thereby hot stamping method of the present invention improves from above-mentioned two aspects and has improved hot stamping effects.
Because the technique scheme utilization, the present invention compared with prior art has following advantage and effect:
1, the invention solves the difficult problem of PE plastics thermoprint, the PE plastics paint attachment fastness height after the thermoprint, strictness is drawn the lattice test by GB GB/T9286-1998 regulation, and test result reaches 0-1 grade, sees following table for details:
Annotate: the result that GB GB/T9286-1998 regulation is drawn the lattice test is divided into six grades, with 0 grade best, 6 grades are the poorest, therefore 0-1 grade is meant that promptly drawing a lattice face does not have damage substantially.
2, the present invention can thermoprint go out large-area writing and pattern, and the big I of area reaches 500mm * 500mm, and each bar line thickness can reach≤50mm.
3, big or small writing and the pattern that the present invention can the thermoprint multicolour, bright in luster, pattern is full, and stereoscopic sensation is strong.
Description of drawings
Accompanying drawing 1 is the whole production process flow diagram of the embodiment of the invention six to embodiment ten;
Accompanying drawing 2 is the use mould heat pressure mode synoptic diagram of the embodiment of the invention six to embodiment ten;
The synoptic diagram of the product that accompanying drawing 3 is produced for the embodiment of the invention six to embodiment ten;
Accompanying drawing 4 is hot pressing pressure, hot pressing temperature and hot pressing time ternary relation (preferable part) curve and the optimal selection scope synoptic diagram of the colored hot stamping method of the present invention.
In the above-mentioned accompanying drawing, 1, the PE plastic plate; 2, mould action face; 3, thermoprint powder paper tinsel; 4, rubber buffer; 5, the pattern and the writing that go out of thermoprint.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: a kind of vinyon that is used for colored thermoprint, and the composition of raw materials of this vinyon is made up of following composition and content thereof:
High density polyethylene 85 parts by weight;
Inorganic powder weighting agent 20 parts by weight;
Linear low density polyethylene 8 parts by weight.
New LDPE (film grade) 12 parts by weight.
Anti-ultraviolet aging agent UV531 0.8 parts by weight;
Antioxidant 264 0.3 parts by weight;
Stearic acid 0.3 parts by weight;
Stearic amide 0.3 parts by weight.
And the inorganic powder weighting agent adopts the filling parent material of calcium carbonate of outsourcing, and granularity is at 1250 orders.
Embodiment two: a kind of vinyon that is used for colored thermoprint, and the composition of raw materials of this vinyon is made up of following composition and content thereof:
High density polyethylene 95 parts by weight;
Polypropylene PP 3 parts by weight;
Inorganic powder weighting agent 25 parts by weight;
Linear low density polyethylene 5 parts by weight.
New LDPE (film grade) 12 parts by weight.
Anti-ultraviolet aging agent UVA series 1 parts by weight;
Antioxidant 264 0.5 parts by weight;
Butyl stearate 0.5 parts by weight;
Solid paraffin 0.5 parts by weight.
And the inorganic powder weighting agent adopts the talcum powder filling master batch and the kaolin filling master batch of outsourcing to mix, and granularity is at 800 orders.
Embodiment three: a kind of vinyon that is used for colored thermoprint, and the composition of raw materials of this vinyon is made up of following composition and content thereof:
High density polyethylene 90 parts by weight;
Inorganic powder weighting agent 15 parts by weight;
Linear low density polyethylene 10 parts by weight.
New LDPE (film grade) 15 parts by weight.
Anti-ultraviolet aging agent HALS series 1 parts by weight;
Antioxidant 264 0.3 parts by weight;
Stearic acid 0.2 parts by weight;
Solid paraffin 0.2 parts by weight.
And the inorganic powder weighting agent adopts the talcum powder filling master batch and the kaolin filling master batch of outsourcing to mix, and granularity is at 1000 orders.
Embodiment four: a kind of composition of raw materials that is used for this vinyon of vinyon of colored thermoprint is made up of following composition and content thereof:
High density polyethylene 80 parts by weight;
Polypropylene PP 9 parts by weight;
Inorganic powder weighting agent 18 parts by weight;
Linear low density polyethylene 9 parts by weight.
New LDPE (film grade) 13 parts by weight.
Anti-ultraviolet aging agent UV531 0.9 parts by weight;
Antioxidant 264 0.3 parts by weight;
Butyl stearate 0.4 parts by weight;
Stearic amide 0.4 parts by weight.
And the inorganic powder weighting agent adopts the clay filled masterbatch and the kaolin filling master batch of outsourcing to mix, and granularity is at 700 orders.
Embodiment five: a kind of vinyon that is used for colored thermoprint, and the composition of raw materials of this vinyon is made up of following composition and content thereof:
High density polyethylene 100 parts by weight;
Polypropylene PP 15 parts by weight;
Inorganic powder weighting agent 30 parts by weight;
Linear low density polyethylene 7 parts by weight.
New LDPE (film grade) 15 parts by weight.
Anti-ultraviolet aging agent UV531 1 parts by weight;
Antioxidant 264 0.5 parts by weight;
Stearic acid 0.5 parts by weight;
Stearic amide 0.5 parts by weight.
And the inorganic powder weighting agent adopts the kaolin filling master batch of outsourcing, and granularity is at 1300 orders.
Embodiment six: shown in accompanying drawing 1～3,
A kind of vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon.
The composition of raw materials composition and the content thereof of described vinyon are identical with embodiment one, promptly directly use embodiment one vinyon.
The literal of described mould is or/and the pattern plane of action is provided with ridge design, and this ridge design is the latticed of horizontal hard raised line formation, and the raised line degree of depth is 0.5mm anyhow;
Hot pressing pressure is 7Mpa～8Mpa, behind selected pressure, on the hot pressing face on vinyon surface the actual pressure of each point drop on average pressure ± 15% interval, comprise end points; Hot pressing temperature is 175 ℃～195 ℃, after selected temperature, on the mould action face each point actual temperature drop on selected temperature ± 10 ℃ of intervals, comprise end points; Hot pressing time is 25 seconds～31 seconds.Above-mentioned hot pressing pressure, hot pressing temperature and hot pressing time scope are best, specifically can adjust in scope by thermoprint area, the degree of depth, decorative pattern situation.
Above-mentioned selected pressure is that 7Mpa～8Mpa is less than or equal to 8Mpa, selected temperature be 175 ℃ 195 ℃ greater than 160 ℃.
As shown in Figure 4, hot pressing pressure, hot pressing temperature and hot pressing time three (preferable part) curved line relation is selected shown in actual can the going up by figure as figure, and on rule, when hot pressing pressure is big, hot pressing temperature will reduce relatively, the also corresponding shortening of hot pressing time; When hot pressing temperature is high, hot pressing pressure will reduce relatively, the also corresponding shortening of hot pressing time; Hot pressing time in short-term, hot pressing pressure will improve relatively, hot pressing temperature is also corresponding increases; Among hot pressing pressure, hot pressing temperature and the hot pressing time three, requirement to hot pressing time is not strict especially, facts have proved,, can comprise the prolongation of plane situation or shorten hot pressing time by thermoprint area, the degree of depth, decorative pattern as long as control well under the situation of best hot pressing pressure and hot pressing temperature.As shown in Figure 4, intermediary shade filling part is the optimum valuing range of hot pressing pressure, hot pressing temperature and the hot pressing time of present embodiment, and can extend to 34 seconds on the hot pressing time or foreshorten to 20 seconds, increases by two preferable regulatory regions with this.
Shown in accompanying drawing 2, in the hot pressing course of processing, below by the thermoprint vinyon, two-layer rubber buffer is set, the distributing homogeneity of being exerted pressure in the vinyon surface with the plane of action of regulating mould.It is 60 ± 5 that described rubber buffer adopts shore a hardness HRa, and thickness is the technically classified rubber plate of 1mm～5mm.
Shown in accompanying drawing 1, whole process flow is: press earlier the formula rate preparation raw material, mixing then evenly granulation again is made into the PE plastic plate then, carries out thermoprint with this PE plastic plate as base material, and arrangement check at last obtains finished product.Finished product as shown in Figure 3, on the PE plastic plate in the thermoprint pattern and literal.
Present embodiment has used the vinyon of embodiment one for illustrating, and vinyon also can be selected the formulation content described in embodiment two, embodiment three, embodiment four or the embodiment five for use in the reality.
Embodiment seven: shown in accompanying drawing 1～3,
A kind of vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon, only be with the difference of embodiment six: described ridge design is the latticed of horizontal hard raised line formation, and the raised line degree of depth is 0.75mm anyhow; Hot pressing pressure is 6Mpa～7Mpa, and hot pressing temperature is 195 ℃～210 ℃, and hot pressing time is 10 seconds～20 seconds.Above-mentioned selected pressure be 6Mpa～7Mpa less than 8Mpa, selected temperature be 195 ℃～210 ℃ greater than 160 ℃.
Other repeats no more here with embodiment six.
Embodiment eight: shown in accompanying drawing 1～3,
A kind of vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon, only be with the difference of embodiment six: described ridge design is the latticed of horizontal hard raised line formation, and the raised line degree of depth is 0.6mm anyhow; Hot pressing pressure is 8.2Mpa～9Mpa; Hot pressing temperature is 130 ℃～170 ℃, and hot pressing time is 30 seconds～40 seconds.Above-mentioned selected pressure be 8.2Mpa～9Mpa greater than 8Mpa, selected temperature be 130 ℃～170 ℃ less than 180 ℃.
Other repeats no more here with embodiment six.
Embodiment nine: shown in accompanying drawing 1～3,
A kind of vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon, only be with the difference of embodiment six: described ridge design is the latticed of horizontal hard raised line formation, and the raised line degree of depth is 0.65mm anyhow; Hot pressing pressure is 2Mpa～3Mpa; Hot pressing temperature is 200 ℃～210 ℃, and hot pressing time is 20 seconds～30 seconds.Above-mentioned selected pressure be 2Mpa～3Mpa less than 8Mpa, selected temperature be 200 ℃～210 ℃ greater than 160 ℃.
Other repeats no more here with embodiment six.
Embodiment ten: shown in accompanying drawing 1～3,
A kind of vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon, only be with the difference of embodiment six: the literal of described mould is not established ridge design or/and the pattern plane of action is a plane on it; Hot pressing pressure is 4～6Mpa; Hot pressing temperature is 180～190 ℃, and hot pressing time is 20～40 seconds.Above-mentioned selected pressure be 4～6Mpa less than 8Mpa, selected temperature be 180～190 ℃ greater than 160 ℃.
Other repeats no more here with embodiment six.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (6)
1. vinyon surface color hot stamping method, at the vinyon surface, with thermoprint powder paper tinsel is membrane carrier pigment, to contain literal or/and the mould of pattern plane of action is an instrument, by hot-press method with pigment and literal or/and design transfer to the lip-deep processing of vinyon, it is characterized in that:
The composition of raw materials of described vinyon comprises following composition and content thereof:
High density polyethylene(HDPE) 80～100 parts by weight;
Polypropylene 3～15 parts by weight;
Inorganic powder weighting agent 15～30 parts by weight;
Wherein, the inorganic powder weighting agent is selected the one or more kinds of mixing in the following material: lime carbonate, talcum powder, kaolin and clay;
The granularity of inorganic powder weighting agent is at 700 orders～1300 orders;
Hot pressing pressure is 2Mpa～9Mpa, behind the selected pressure, on the hot pressing face on vinyon surface the actual pressure of each point drop on average pressure ± 15% interval, comprise end points; Hot pressing temperature is 130 ℃～210 ℃, after selected temperature, on the mould action face each point actual temperature drop on selected temperature ± 10 ℃ of intervals, comprise end points; Hot pressing time is 10 seconds～40 seconds;
Pressure selected and temperature meet following condition in described hot pressing pressure and hot pressing temperature scope: when elected level pressure power was less than or equal to 8Mpa, selected temperature was more than or equal to 160 ℃; When being elected to level pressure power greater than 8Mpa, selected temperature is less than or equal to 180 ℃.
2. vinyon surface color hot stamping method according to claim 1 is characterized in that: the literal of described mould is or/and the pattern plane of action is provided with ridge design, and the ridge design degree of depth is 0.5mm～1mm.
3. vinyon surface color hot stamping method according to claim 1, it is characterized in that: in the hot pressing course of processing, below by the thermoprint vinyon, rubber buffer is set, the distributing homogeneity of being exerted pressure in the vinyon surface with the plane of action of regulating mould.
4. vinyon surface color hot stamping method according to claim 1 is characterized in that: hot pressing pressure is 6Mpa～8Mpa; Hot pressing temperature is 150 ℃～210 ℃; Hot pressing time is 15 seconds～35 seconds.
5. vinyon surface color hot stamping method according to claim 4 is characterized in that: hot pressing pressure is 7Mpa～8Mpa; Hot pressing temperature is 175 ℃～195 ℃; Hot pressing time is 25 seconds～31 seconds.
6. vinyon surface color hot stamping method according to claim 2 is characterized in that: the ridge design degree of depth is 0.5mm～0.75mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101957838A CN101353456B (en) | 2008-08-29 | 2008-08-29 | Polyethylene plastic for color thermoprint and thermoprint method thereof |
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| CN2008101957838A CN101353456B (en) | 2008-08-29 | 2008-08-29 | Polyethylene plastic for color thermoprint and thermoprint method thereof |
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2008
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| CN101353456A (en) | 2009-01-28 |
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