CN106566068A - Composition capable of laser color marking and preparation method thereof - Google Patents
Composition capable of laser color marking and preparation method thereof Download PDFInfo
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- CN106566068A CN106566068A CN201610908021.2A CN201610908021A CN106566068A CN 106566068 A CN106566068 A CN 106566068A CN 201610908021 A CN201610908021 A CN 201610908021A CN 106566068 A CN106566068 A CN 106566068A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
- C08K5/3417—Five-membered rings condensed with carbocyclic rings
Abstract
The invention discloses a composition capable of laser color marking and a preparation method thereof. The composition comprises, by weight, 100 parts of a polymer, 0.05-2 parts of a laser marking powder, and 0.1-10 parts of a temperature sensing substance. The preparation method comprises the following step: carrying out melt blending on the above components including the polymer, the laser marking powder and the temperature sensing substance. By addition of the temperature sensing substance and by the utilization of heat generated during the laser marking process, the temperature sensing substance undergoes thermal decomposition, oxidation and other reactions at a certain temperature. Those reactions destroy the original material structure or a new substance is generated, and a new color is generated. The color change is unidirectional and irreversible. After cooling, the original color cannot be recovered. Therefore, a stable permanent mark can be formed on a product.
Description
Technical field
The present invention relates to technical field of polymer materials, and in particular to it is a kind of can laser color labelling compositionss and its system
Preparation Method.
Background technology
Laser labelling is a kind of novel markings method, and which is brought it about in frosting using the high energy energy exposure of laser
Carbonization, foaming, metachromasia etc., so as to obtain the labelling with matrix different colours.Laser labelling is mainly used in forever at present
Labelling, product false proof, tracking of important spare part etc., compared with traditional printing mark technology, laser labelling is excellent in terms of having 3
Gesture：(1) noncontact procession, heat affecting are little, it is ensured that original precision of workpiece, labelling are clear and durable；(2) signature velocity
Hurry up, it is easy to operate, high-speed automated operation, low production cost can be accomplished；(3) pollute little, be a kind of processing of clean environment firendly
Technology.
At present, colour-coded is carried out on plastic substrate relatively difficult.Colored mark is carried out on existing relevant plastic substrate
The method of note has two methods of physics bonding and chemical modification.
Wherein, Merck KGaA company is exactly to bind method using physics, binds colorful film to realize coloured silk on plastic substrate
Color marker, is bonding on part thin film on plastics particular by the laser of high-energy, after remaining thin film is removed, plastic substrate
Surface leaves colour-coded.This method can relatively accurately meet desired colour-coded, but there is more defect, be such as labeled with
Color is uneven, the mechanical friction during use oozes out can color, labelling is intolerant to waiting so long.
Another kind of method is the modified from plastic substrate, adds coloring agent or pigment, is made using laser energy
Toner is degraded or is reacted, so as to produce color change.Japanese great Ke Neng Resins Corporations develop a kind of lamination using this thinking
Body, is made up of two-layer material, and one layer is transparent thermoplastic resin, and light transmittance will reach more than 70%, such as PET, PC etc.；Separately
One layer then contains colour colouring pigment and atrament, receives own combustion or discoloration when laser irradiates.This multiple structure sets
Meter increased the processing technique complexity and difficulty of plastic substrate, and increased due to transparent thermoplastic resin's light transmittance problem
Energy consumption.
At present, most of plastic substrates do not find suitable laser marking additives for putting into commercial production.Simultaneously
The application of laser labelling still falls within non-surface-beautifying decoration, and how obtaining colour-coded and being applied to beautifying and decorating is future
Challenge in work.The pigment that laser irradiation issues biochemical reaction is significant for colour-coded is realized.By excellent
Change different processing and treating methods, the different laser marking additives formula of screening are furtherd investigate laser mark process and wherein occurred
Chemical reaction, the laser labelling of plastics can become apparent from durable, and colour-coded technology can also obtain incremental advances, laser labelling
Technology will be applied to more wide field.
The content of the invention
For solve above-mentioned technical problem, the invention provides it is a kind of can laser color labelling compositionss and its preparation side
Method.Said composition can form colour-coded in substrate surface with laser instrument so that marking and background have higher contrast.
Technical solution of the present invention is as follows：
It is a kind of can laser color labelling compositionss, it is characterised in that：
It is right including at least one laser marking powder that can cause color change by component proportion melt blending, at least one
Temperature sensitive warming material, and high molecular polymer；There is color change, this face at a certain temperature in said composition
Color change be it is unidirectional, it is irreversible, primary colors can not be recovered after cooling；
Wherein, when the polymer is 100 weight portion, the content of the laser marking powder is 0.05-2 weight portions, described
The content of warming material is 0.1-10 weight portions, is also added with the processing aid of 0.1-5 weight portions.
Wherein, when the polymer is 100 weight portion, the preferred 0.5-1 weight portions of the laser marking powder, the warming thing
It is of fine quality to select 1-5 weight portions.
Wherein, the polymer is polyethylene, polypropylene, polystyrene, polrvinyl chloride, Merlon, nylon66 fiber, thermoplastic
At least one in property polyurethane, Acrylonitrile Butadiene—Styrene copolymer.
Wherein, the laser marking powder is the exploitation of Merck KGaA company comprising pearlescent pigment and laser-sensitive pigment
Iriotec 8825、Iriotec 8835、Iriotec 8830、Iriotec 8800、Iriotec 8805、Iriotec
8820th, at least one in Iriotec 8840, Iriotec 8208；Wherein, the pearlescent pigment is with light Muscovitum or white
Mica sheet covers multiple layer metal oxide again for chip base and obtains；Wherein, the metal-oxide be SnO2, TiO2, Fe2O3,
One or more in (Sn, Sb) O2, ZnO and Sb2O3.
Wherein, the warming material is at least one in phthalocyanine pigment.Described warming material is at 180 DEG C to 550
There is in the range of DEG C color change, its metachromatic principle is that the reactions such as thermal decomposition, oxidation occur at a certain temperature, and these are anti-
The starting substance structure should be destroyed or a kind of novel substance is generated, while producing a kind of new color.
The laser instrument that laser labelling is carried out to polymer composition of the invention can be CO2 laser instrument (wavelength
10600nm)、Nd：YAG laser (wavelength 1064nm and 532nm), pulsed UV laser (excimer laser) etc..
The present invention can laser color labelling compositionss preparation method, including will include the polymer, laser
Mark powder, warming material press the component proportion melt blending, then extrusion molding, pelletize in interior component.
In the preparation process of the present composition, material melts blending temperature is institute in usual polymeric material processing
Blending temperature, can be according to polymer melting temperature depending on.Additionally, according to processing needs, can add in blending material poly-
Some auxiliary agents such as lubricant, antioxidant etc. commonly used in the compound course of processing, its consumption are conventional amount used, or according to actual feelings
The requirement of condition is adjusted.
The blending equipment of material mixing can be using various batch mixings used in prior art in the preparation process in accordance with the present invention
Equipment, such as blender, kneader etc..
The melt blending extrusion equipment for being used in the preparation process in accordance with the present invention is the general blending in Plastics Processing Industry
Equipment, can be double screw extruder, single screw extrusion machine, mill or banbury etc..
The present invention can the preparation method of compositionss of color laser labelling include：By polymer base material, laser marking powder,
The warming material and processing aid mix homogeneously in high-speed mixer；By compound, the melting extrusion in double screw extruder, cold
But pelletizing；Gained pellet is dried into 12h at 90 DEG C, the injection moulding at 180-240 DEG C prepares standard batten on request and carries out
Laser labelling.
To the sign of labelling can by visual observation font tags lines it is whether smooth, clear, whether wide area surface smooth
To determine.
Preparation method simple and reliable process of the present invention, needs to carry out in can apply to nearly all industrial department
On the polymeric articles of labelling, for example：Need to indicate date of manufacture, expiration date on article, bar code, house mark, be
Row number etc..
Specific embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment 1：
For acrylic resin：By 100 weight portion of acrylic resin, laser marking powder Iriotec 8835 (Merck KGaA)
0.05 weight portion, 0.1 weight portion of warming material C.I. Pigment Blue 15,0.1 weight portion of processing aid are placed in stirrer for mixing uniformly, then
Melt blending, extruding pelletization are carried out in adding mixture into double screw extruder, extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 2：
For acrylic resin：By 100 weight portion of acrylic resin, laser marking powder Iriotec 8835 (Merck KGaA)
0.3 weight portion, 0.1 weight portion of warming material C.I. Pigment Blue 15,1 weight portion of processing aid are placed in stirrer for mixing uniformly, then will
Compound carries out melt blending, extruding pelletization in adding double screw extruder, extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 3：
For acrylic resin：By 100 weight portion of acrylic resin, laser marking powder Iriotec 8835 (Merck KGaA)
2 weight portions, 0.1 weight portion of warming material C.I. Pigment Blue 15,2 weight portion of processing aid are placed in stirrer for mixing uniformly, then will be mixed
Closing during material adds double screw extruder carries out melt blending, extruding pelletization, and extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 4：
For acrylic resin：By 100 weight portion of acrylic resin, laser marking powder Iriotec 8835 (Merck KGaA)
2 weight portions, 0.1 weight portion of warming material C.I. Pigment Blue 15,3 weight portion of processing aid are placed in stirrer for mixing uniformly, then will be mixed
Closing during material adds double screw extruder carries out melt blending, extruding pelletization, and extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried 12h in 90 DEG C of baking ovens, and standard batten is then injected under conditions of 160～220 DEG C,
Carry out laser marking test.
Embodiment 5：
For acrylic resin：By 100 weight portion of acrylic resin, laser marking powder Iriotec 8835 (Merck KGaA)
0.3 weight portion, 10 weight portion of warming material C.I. Pigment Blue 15,5 weight portion of processing aid are placed in stirrer for mixing uniformly, then will be mixed
Closing during material adds double screw extruder carries out melt blending, extruding pelletization, and extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Comparative example 1～2：
In addition to being not added with warming material C.I. Pigment Blue 15, remaining condition is identical with previous embodiment.Ju Ti Pei Fang is shown in Table 1, its
Middle each component content is in parts by weight.Laser labelling effect is as shown in table 1.
The formula and laser labelling effect of 1 embodiment of table and comparative example
| Polypropylene | Iriotec 8835 | C.I. Pigment Blue 15 | Mark effect | Marker color | |
| Embodiment 1 | 100 | 0.05 | 0.1 | Typically | Pale blue |
| Embodiment 2 | 100 | 0.3 | 0.1 | It is good | Pale blue |
| Embodiment 3 | 100 | 2 | 0.1 | It is good | Pale blue |
| Embodiment 4 | 100 | 0.3 | 2 | It is good | It is blue |
| Embodiment 5 | 100 | 0.3 | 10 | It is good | It is dark blue |
| Comparative example 1 | 100 | 0.3 | 0 | It is good | White |
| Comparative example 2 | 100 | 0.3 | 0 | It is good | White |
Embodiment 6：
For polyvinyl resin：By 100 weight portion of polyvinyl resin, laser marking powder Iriotec 8825 (Merck KGaA)
0.05 weight portion, 0.1 weight portion of warming material aluminum phthalocyanine, 0.1 weight portion of processing aid are placed in stirrer for mixing uniformly, then
Melt blending, extruding pelletization are carried out in adding mixture into double screw extruder, extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 7：
For polyvinyl resin：By 100 weight portion of polyvinyl resin, laser marking powder Iriotec 8825 (Merck KGaA)
0.3 weight portion, 0.1 weight portion of warming material aluminum phthalocyanine, 2 weight portion of processing aid are placed in stirrer for mixing uniformly, then will
Compound carries out melt blending, extruding pelletization in adding double screw extruder, extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 8：
For polyvinyl resin：By 100 weight portion of polyvinyl resin, laser marking powder Iriotec 8825 (Merck KGaA)
2 weight portions, 0.1 weight portion of warming material aluminum phthalocyanine, 5 weight portion of processing aid are placed in stirrer for mixing uniformly, then will be mixed
Closing during material adds double screw extruder carries out melt blending, extruding pelletization, and extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 9：
For polyvinyl resin：By 100 weight portion of polyvinyl resin, laser marking powder Iriotec 8825 (Merck KGaA)
0.3 weight portion, 2 weight portion of warming material aluminum phthalocyanine, 2 weight portion of processing aid are placed in stirrer for mixing uniformly, then will be mixed
Closing during material adds double screw extruder carries out melt blending, extruding pelletization, and extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Embodiment 10：
For polyvinyl resin：By 100 weight portion of polyvinyl resin, laser marking powder Iriotec 8825 (Merck KGaA)
0.3 weight portion, 10 weight portion of warming material aluminum phthalocyanine, 2 weight portion of processing aid are placed in stirrer for mixing uniformly, then will be mixed
Closing during material adds double screw extruder carries out melt blending, extruding pelletization, and extrusion temperature is 160～220 DEG C, screw speed
300rpm.The material grain of extrusion is dried into 12h in 90 DEG C of baking ovens, then standard sample is injected under conditions of 160～220 DEG C again
Bar, carries out laser marking test.
Comparative example 3～4：
In addition to being not added with warming material aluminum phthalocyanine, remaining condition is identical with previous embodiment.Ju Ti Pei Fang is shown in Table 2, its
Middle each component content is in parts by weight.Laser labelling effect is as shown in table 2.
The formula and laser labelling effect of 2 embodiment of table and comparative example
| Polyethylene | Iriotec 8825 | Aluminum phthalocyanine | Mark effect | Marker color | |
| Embodiment 6 | 100 | 0.05 | 0.1 | Typically | Black |
| Embodiment 7 | 100 | 0.3 | 0.1 | It is good | Black |
| Embodiment 8 | 100 | 2 | 0.1 | It is good | Black |
| Embodiment 9 | 100 | 0.3 | 2 | It is good | Green |
| Embodiment 10 | 100 | 0.3 | 10 | It is good | Green |
| Comparative example 3 | 100 | 0.3 | 0 | It is good | Black |
| Comparative example 4 | 100 | 0.3 | 0 | It is good | Black |
Embodiment 11～15：
Except polymer is polystyrene, laser marking powder is outside Iriotec 8800, remaining condition with embodiment 1～
5 is identical., in addition to being not added with warming material C.I. Pigment Blue 15, remaining condition is as hereinbefore for comparative example 5～6.Ju Ti Pei Fang is shown in Table 3,
Wherein each component content is in parts by weight.Laser labelling effect is as shown in table 3.
The formula and laser labelling effect of 3 embodiment of table and comparative example
| Polystyrene | Iriotec 8800 | C.I. Pigment Blue 15 | Mark effect | Marker color | |
| Embodiment 11 | 100 | 0.05 | 0.1 | Typically | Pale blue |
| Embodiment 12 | 100 | 0.3 | 0.1 | It is good | Pale blue |
| Embodiment 13 | 100 | 2 | 0.1 | It is good | Pale blue |
| Embodiment 14 | 100 | 0.3 | 2 | It is good | It is blue |
| Embodiment 15 | 100 | 0.3 | 10 | It is good | It is dark blue |
| Comparative example 5 | 100 | 0.3 | 0 | It is good | Light gray |
| Comparative example 6 | 100 | 0.3 | 0 | It is good | Light gray |
Embodiment 16～20：
Except polymer be TPU, laser marking powder be Iriotec 8830 outside, remaining condition with 6～10 phase of embodiment
Together., in addition to being not added with warming material aluminum phthalocyanine, remaining condition is as hereinbefore for comparative example 7～8.Ju Ti Pei Fang is shown in Table 4, wherein
Each component content is in parts by weight.Laser labelling effect is as shown in table 4.
The formula and laser labelling effect of 4 embodiment of table and comparative example
| TPU | Iriotec 8830 | Aluminum phthalocyanine | Mark effect | Marker color | |
| Embodiment 16 | 100 | 0.05 | 0.1 | Typically | Pale green |
| Embodiment 17 | 100 | 0.3 | 0.1 | It is good | Pale green |
| Embodiment 18 | 100 | 2 | 0.1 | It is good | Pale green |
| Embodiment 19 | 100 | 0.3 | 2 | It is good | Green |
| Embodiment 20 | 100 | 0.3 | 10 | It is good | Green |
| Comparative example 7 | 100 | 0.3 | 0 | It is good | White |
| Comparative example 8 | 100 | 0.3 | 0 | It is good | White |
Embodiment 21～25：
Except polymer be nylon66 fiber, laser marking powder be Iriotec 8840 outside, remaining condition with embodiment 1～5
It is identical., in addition to being not added with warming material C.I. Pigment Blue 15, remaining condition is as hereinbefore for comparative example 9～10.Ju Ti Pei Fang is shown in Table 5,
Wherein each component content is in parts by weight.Laser labelling effect is as shown in table 5.
The formula and laser labelling effect of 5 embodiment of table and comparative example
| Nylon66 fiber | Iriotec 8840 | C.I. Pigment Blue 15 | Mark effect | Marker color | |
| Embodiment 21 | 100 | 0.05 | 0.1 | Typically | Pale blue |
| Embodiment 22 | 100 | 0.3 | 0.1 | It is good | Pale blue |
| Embodiment 23 | 100 | 2 | 0.1 | It is good | Pale blue |
| Embodiment 24 | 100 | 0.3 | 2 | It is good | It is blue |
| Embodiment 25 | 100 | 0.3 | 10 | It is good | It is dark blue |
| Comparative example 9 | 100 | 0.3 | 0 | It is good | Black |
| Comparative example 10 | 100 | 0.3 | 0 | It is good | Black |
Embodiment 26～30：
Except polymer is polrvinyl chloride, laser marking powder is outside Iriotec 8805, remaining condition with embodiment 6～
10 is identical., in addition to being not added with warming material aluminum phthalocyanine, remaining condition is as hereinbefore for comparative example 11～12.Ju Ti Pei Fang is shown in Table
6, wherein each component content is in parts by weight.Laser labelling effect is as shown in table 6.
The formula and laser labelling effect of 6 embodiment of table and comparative example
| Polrvinyl chloride | Iriotec 8805 | Aluminum phthalocyanine | Mark effect | Marker color | |
| Embodiment 26 | 100 | 0.05 | 0.1 | Typically | Pale green |
| Embodiment 27 | 100 | 0.3 | 0.1 | It is good | Pale green |
| Embodiment 28 | 100 | 2 | 0.1 | It is good | Pale green |
| Embodiment 29 | 100 | 0.3 | 2 | It is good | Green |
| Embodiment 30 | 100 | 0.3 | 10 | It is good | Green |
| Comparative example 11 | 100 | 0.3 | 0 | It is good | Light gray |
| Comparative example 12 | 100 | 0.3 | 0 | It is good | Light gray |
Embodiment 31～35：
Except polymer be ABS, laser marking powder be Iriotec 8208 outside, remaining condition with 1～5 phase of embodiment
Together., in addition to being not added with warming material C.I. Pigment Blue 15, remaining condition is as hereinbefore for comparative example 13～14.Ju Ti Pei Fang is shown in Table 7, its
Middle each component content is in parts by weight.Laser labelling effect is as shown in table 7.
The formula and laser labelling effect of 7 embodiment of table and comparative example
Embodiment 36～40：
Except polymer is Merlon, laser marking powder is outside Iriotec 8820, remaining condition with embodiment 6～
10 is identical., in addition to being not added with warming material aluminum phthalocyanine, remaining condition is as hereinbefore for comparative example 15～16.Ju Ti Pei Fang is shown in Table
8, wherein each component content is in parts by weight.Laser labelling effect is as shown in table 8.
The formula and laser labelling effect of 8 embodiment of table and comparative example
| Merlon | Iriotec 8820 | Aluminum phthalocyanine | Mark effect | Marker color | |
| Embodiment 36 | 100 | 0.05 | 0.1 | Typically | Black |
| Embodiment 37 | 100 | 0.3 | 0.1 | It is good | Black |
| Embodiment 38 | 100 | 2 | 0.1 | It is good | Black |
| Embodiment 39 | 100 | 0.3 | 2 | It is good | Green |
| Embodiment 40 | 100 | 0.3 | 10 | It is good | Green |
| Comparative example 15 | 100 | 0.3 | 0 | It is good | Black |
| Comparative example 16 | 100 | 0.3 | 0 | It is good | Black |
Analysis：As shown in table 1-8, the content of laser marking powder is the key factor for determining mark effect, and warming material is then
The depth of the color and marker color of labelling is determined, therefore it is full to pass through the content of adjustment laser powder up to standard and warming material
The corresponding labelling demand of foot.
Claims (8)
1. it is a kind of can laser color labelling compositionss, it is characterised in that：
Including at least one laser marking powder that can cause color change by component proportion melt blending, at least one to temperature
Sensitive warming material, and high molecular polymer；
Wherein, when the polymer is 100 weight portion, the content of the laser marking powder is 0.05-2 weight portions, the warming
The content of material is 0.1-10 weight portions.
2. it is as claimed in claim 1 it is a kind of can laser color labelling compositionss, it is characterised in that：
Count by 100 weight portions of the polymer, be also added with the processing aid of 0.1-5 weight portions.
3. it is as claimed in claim 1 it is a kind of can laser color labelling compositionss, it is characterised in that：
The polymer be polyethylene, polypropylene, polystyrene, polrvinyl chloride, Merlon, nylon66 fiber, thermoplastic polyurethane,
At least one in Acrylonitrile Butadiene—Styrene copolymer.
4. it is as claimed in claim 1 it is a kind of can laser color labelling compositionss, it is characterised in that：
The laser marking powder is the Iriotec comprising pearlescent pigment and laser-sensitive pigment of Merck KGaA company exploitation
8825、Iriotec 8835、Iriotec 8830、Iriotec 8800、Iriotec 8805、Iriotec 8820、Iriotec
8840th, at least one in Iriotec 8208；
The pearlescent pigment is again to cover multiple layer metal oxide as chip base with light Muscovitum or white clouds master slice to obtain；
The metal-oxide be SnO2, TiO2, Fe2O3, one or more in (Sn, Sb) O2, ZnO and Sb2O3.
5. it is as claimed in claim 4 it is a kind of can laser color labelling compositionss, it is characterised in that：
Count by 100 weight portions of the polymer, the laser marking powder is 0.5-1 weight portions.
6. it is as claimed in claim 1 it is a kind of can laser color labelling compositionss, it is characterised in that：
The warming material is at least one in phthalocyanine pigment.
7. it is as claimed in claim 6 it is a kind of can laser color labelling compositionss, it is characterised in that：
Count by 100 weight portions of the polymer, the warming material is 1-5 weight portions.
8. as described in claim 1-7 it is a kind of can laser color labelling compositionss preparation method, it is characterised in that：By institute
Polymer, laser marking powder, warming material are stated by described weight melt blending, then extrusion molding, pelletize.
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| CN112961484A (en) * | 2021-05-14 | 2021-06-15 | 苏州奥美材料科技有限公司 | Laser etching agent, laser etching polycarbonate, and preparation method and application thereof |
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| CN115109379B (en) * | 2022-06-10 | 2023-12-22 | 中广核俊尔(浙江)新材料有限公司 | Antibacterial polypropylene composite material with short molding cycle, and preparation method and application thereof |
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Application publication date: 20170419 |