CN102617917B - Plastic bottle cap lining material and preparation method thereof - Google Patents
Plastic bottle cap lining material and preparation method thereof Download PDFInfo
- Publication number
- CN102617917B CN102617917B CN201210103351.6A CN201210103351A CN102617917B CN 102617917 B CN102617917 B CN 102617917B CN 201210103351 A CN201210103351 A CN 201210103351A CN 102617917 B CN102617917 B CN 102617917B
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- China
- Prior art keywords
- radium
- laser
- lining material
- plastic bottle
- inner pad
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention relates to the technical field of developing materials. In the conventional plastic bottle cap lining material which is suitable for a beverage filling process, a thermoplastic elastomer is generally added into polyolefin, and a lead-based laser master batch is mixed directly or indirectly, so that the contrast is poor and the developing effect is poor after laser developing; and moreover, the lining material contains heavy metal lead, so that the food safety hidden trouble exists. The invention aims to provide a plastic cap lining material which does not contain lead-based laser powder but has a good laser developing effect. The invention provides a plastic bottle cap lining material. The lining material consists of a thermoplastic elastomer, laser powder and a pigment additive, and the laser powder is made of an aluminum base, so that the food safety of a product is enhanced; and moreover, compared with an original laser lining material made of a lead base, a product made of the lining material has the advantages of generation of patterns or characters with remarkable contrasts and better laser developing effect under the action of a laser developing machine.
Description
Technical field
The present invention relates to developing material technical field, be specifically related to a kind of plastic bottle closure inner pad material and preparation method thereof.
Background technology
At present, be applicable to the plastic bottle closure inner pad material of beverage filling technique, general employing in polyolefine added thermoplastic elastomer, and (Pb) laser masterbatch forms directly or indirectly to sneak into lead base, with guarantee beverage closure inner pad material stopping property and can radium-shine developability.But there is following shortcoming in this class blending modified material:
1. laser absorption spectrum is poor to the absorptivity of the spectrum of its inner pad material, after radium-shine development, and poor contrast, development effect is not good;
2. in the radium-shine powder of lead base (Pb) adding in inner pad material containing heavy metal lead, and bottle cap just with the position of Food Contact, there is food safety hidden danger.
3. the drink product non-refractory after filling exists lower-molecular substance to separate out phenomenon in 25～40 ℃ of temperature ranges.
Market in urgent need is a kind of not containing the radium-shine powder of lead base but inner pad material is covered in good the moulding of radium-shine development effect.
Summary of the invention
The object of the present invention is to provide and a kind ofly containing the radium-shine powder of lead base but radium-shine development effect, do not mould well and cover inner pad material.
Technical problem to be solved by this invention is mainly that existing beverage is moulded and covered the poor problem of the radium-shine development effect of inner pad material, provides a kind of new moulding cover inner pad material, with ar atmo laser spectrum have better must absorptivity, thereby obtain the development effect that contrast gradient is stronger.
The invention provides a kind of plastic bottle closure inner pad material, this material is comprised of thermoplastic elastomer, radium-shine powder, pigment additive, and the proportioning of each component is in parts by weight, thermoplastic elastomer: radium-shine powder: pigment additive is 100: 1～10: 1～10.
Thermoplastic elastomer wherein, prior art is normally used is hydrogenated styrene diene copolymer (SEBS), but in order to improve processing characteristics, can in material, add mineral oil, the risk that exists grease to separate out.Therefore, the inventor has tried out multiple material, consider material cost, buying the desired gas retaining energy of complexity, Drawing abillity and gasket material, open the integration test of the aspects such as performance, final selected polyethylene (PE), as elastomerics, has guaranteed good processing characteristics and the security of product.
Radium-shine powder wherein, along with the development of technology, radium-shine developing material goes out alumina-base material, and security is higher, so the inventor has selected aluminium base (Al) radium-shine powder.
Pigment additive is wherein look female tinting material, considers the processing characteristics of equipment, and the inventor has adopted the female tinting material of the white look of gram Lay benefactor department production.
Consider the ratio of aluminium base radium-shine powder and look female tinting material, if the ratio of look female tinting material is too high, because material color is white, the rear contrast of laser development is not too strong, and visual effect is slightly poor, as shown in Figure 4.And if the ratio of aluminium base radium-shine powder is too high, as thermoplastic elastomer: radium-shine powder: pigment additive is 100: 10: 1, and printing effect is better, as shown in Figure 5, but consider Financial cost, aluminium base radium-shine powder is expensive, add less meeting under the prerequisite of customer requirement as far as possible.
Preferably, described plastic bottle closure inner pad material, thermoplastic elastomer: radium-shine powder: pigment additive is 100: 1～5: 5～10.
Best, described plastic bottle closure inner pad material, thermoplastic elastomer: radium-shine powder: pigment additive is 100: 5: 5.
Another object of the present invention is to provide the above-mentioned preparation method of covering inner pad material that moulds.
The preparation method who the invention provides a kind of plastic bottle closure inner pad material, the method comprises the steps:
A, thermoplastic elastomer, radium-shine powder and pigment additive are mixed in proportion;
B, mixture that steps A is obtained are under 110～200 ℃ of conditions, and melt pressure is within the scope of 1～2.5MPa, after twin screw extruder, is compression molded into the gasket sheet of combining closely with plastic bottle closure shell through liner machine.
Preferably, the temperature of step B is 150～200 ℃.
Inner pad material of the present invention can be printed laser-marking under laser printer.
Technical scheme of the present invention, the radium-shine powder of development using due to inner pad material is aluminium base making, the laser beam spectral absorption of accelerating formation with ar atmo concussion is better, heat up rapidly because having absorbed the energy of laser in irradiated region, according to properties of materials (temperature of fusing point, boiling point or generation chemical transformation), on its surface, there is series of physical chemical transformation, thereby formed stronger picture or the word of contrast gradient.Meanwhile, the laser masterbatch that aluminium base (Al) makes has replaced original lead base (Pb) laser masterbatch, has strengthened the food safety of product.
The laser inner pad material (left figure in Fig. 3) that the present invention makes with original lead base with the laser inner pad material (right figure in Fig. 3) of aluminium base making is compared the good processing stability of material, workability is strong, laser burning point color is more clear, more even, and marking contrast is stronger.Do not changing under the prerequisite of moulding the original sealing property of lid, effectively must solve original laser masterbatch and burn point fuzziness, the problem that development effect is poor.
The product that inner pad material of the present invention is made produces pattern or the word that has obvious contrast gradient under radium-shine developing machine, and laser development effect is good.
Inner pad material of the present invention not only has good performance, and gasket material is cheap, is beneficial to marketing.
Accompanying drawing explanation
Fig. 1 is the nuclear magnetic resonance spectrogram of inner pad material of the present invention;
Fig. 2 is the infrared spectrogram of inner pad material of the present invention;
Fig. 3 is the radium-shine printing effect comparison diagram (figure is left is comparative example, and the figure right side is embodiment 1) of different inner pad material;
Fig. 4 is the radium-shine printing effect figure of the inner pad material of embodiment 2;
Fig. 5 is the radium-shine printing effect figure of the inner pad material of embodiment 12.
Embodiment
Below in conjunction with specific embodiments and the drawings, further set forth the present invention.Should understand these embodiment only for the present invention is described, and be not used in restriction range of application of the present invention.
Embodiment 1: plastic bottle closure inner pad material of the present invention
Under 20 ± 5 ℃ of envrionment temperatures, take 10 kilograms of polyethylene, 0.5 kilogram of aluminium base (Al) radium-shine powder (purchased from Polyone company), 0.5 kilogram of look female tinting material (purchased from Clariant company) mixes in mixer; Then mixture is put into the spout of twin screw extruder, equipment is after preheating, default melt temperature is 150～200 ℃, melt pressure is 1～2.5MPa, after start, mixture enters forcing machine, reaches after certain mobility, open the liner equipment connecting, by hot pressing, pad once shaped is entered to beverage and mould in the lid shell of lid.
Its nuclear magnetic resonance spectrogram as shown in Figure 1.
Its infrared spectrogram as shown in Figure 2.
Embodiment 2-16: plastic bottle closure inner pad material of the present invention
All the other steps, with embodiment 1, have changed the add-on of aluminium base radium-shine powder and look female tinting material, can obtain the sign of the development effect of different contrast.
Material formula is as shown in table 1.
Table 1: the plastic bottle closure inner pad material material formula of embodiment 2-16
| Embodiment | Raw material | Raw material weight proportioning | |
| 2 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶10∶10 | With |
| 3 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶8∶10 | With |
| 4 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶6∶10 | With |
| 5 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶4∶10 | With |
| 6 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶2∶10 | With |
| 7 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶10∶5 | With |
| 8 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶8∶5 | With |
| 9 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶6∶5 | With |
| 10 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶4∶5 | With |
| 11 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶2∶5 | With |
| 12 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶10∶1 | With |
| 13 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶8∶1 | With |
| 14 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶6∶1 | With |
| 15 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶4∶1 | With |
| 16 | Polyethylene, aluminium base (Al) radium-shine powder, look |
100∶2∶1 | With |
The radium-shine printing effect of the inner pad material of embodiment 2 as shown in Figure 4; The radium-shine printing effect of the inner pad material of embodiment 12 as shown in Figure 5.
Embodiment 17: the technique effect of plastic bottle closure inner pad material of the present invention
Preparation comparative example: under 20 ± 5 ℃ of envrionment temperatures, take 10 kilograms of SEBS (hydrogenated styrene diene copolymer), 0.5 kilogram of lead base (Pb) laser masterbatch and 0.5 kilogram of look female tinting material and mix in mixer; Then mixture is put into the spout of twin screw extruder, equipment is after preheating, default melt temperature is 150～200 ℃, melt pressure is 1～2.5MPa, after start, mixture enters forcing machine, reaches after certain mobility, open the liner equipment connecting, by hot pressing, pad once shaped is entered in the lid shell of soda pop lid.
As shown in Figure 3, a figure left side is comparative example, and the figure right side is embodiment 1, can find out, the radium-shine printing printing effect of the inner pad material of the embodiment of the present invention 1 is better than the material of comparative example, and security is higher.
Visible, the component of inner pad material of the present invention and mix proportion scheme have all been obtained good effect in printing effect and security.
Claims (5)
1. a plastic bottle closure inner pad material, this material is comprised of thermoplastic elastomer, radium-shine powder, pigment additive, it is characterized in that the proportioning of each component is in parts by weight, thermoplastic elastomer: radium-shine powder: pigment additive is 100: 1～10: 1～10; Thermoplastic elastomer is wherein polyethylene; Radium-shine powder is wherein aluminium base radium-shine powder; Pigment additive is wherein look female tinting material.
2. plastic bottle closure inner pad material according to claim 1, is characterized in that thermoplastic elastomer: radium-shine powder: pigment additive is 100: 1～5: 5～10.
3. plastic bottle closure inner pad material according to claim 1, is characterized in that thermoplastic elastomer: radium-shine powder: pigment additive is 100: 5: 5.
4. a preparation method for the plastic bottle closure inner pad material as described in claim 1,2 or 3, is characterized in that the method comprises the steps:
A, thermoplastic elastomer, radium-shine powder and pigment additive are mixed in proportion;
B, mixture that steps A is obtained are under 110～200 ℃ of conditions, and melt pressure is within the scope of 1～2.5MPa, after twin screw extruder, is compression molded into the gasket sheet of combining closely with plastic bottle closure shell through liner machine.
5. the preparation method of plastic bottle closure inner pad material according to claim 4, is characterized in that, the temperature of step B is 150～200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103351.6A CN102617917B (en) | 2012-04-10 | 2012-04-10 | Plastic bottle cap lining material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103351.6A CN102617917B (en) | 2012-04-10 | 2012-04-10 | Plastic bottle cap lining material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102617917A CN102617917A (en) | 2012-08-01 |
| CN102617917B true CN102617917B (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210103351.6A Active CN102617917B (en) | 2012-04-10 | 2012-04-10 | Plastic bottle cap lining material and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003057A (en) * | 2014-06-12 | 2014-08-27 | 东莞市金富实业有限公司 | Anti-bacterial plastic bottle cap where laser printing can be conducted, and manufacturing process of anti-bacterial plastic bottle cap |
| CN106810746A (en) * | 2017-01-09 | 2017-06-09 | 上海紫日包装有限公司 | It is a kind of can laser development single-piece plastic bottle cap lid shell material and its application |
| CN107286439A (en) * | 2017-07-25 | 2017-10-24 | 佛山市正略信息科技有限公司 | Pad material and preparation method thereof in a kind of plastic bottle closure |
| CN111763490B (en) * | 2020-07-13 | 2021-10-01 | 佛山市同骏环保科技有限公司 | Gasket material suitable for laser printing |
Citations (5)
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|---|---|---|---|---|
| WO2004012515A1 (en) * | 2002-07-31 | 2004-02-12 | Merck Patent Gmbh | Laser markable carrier unit |
| CN1860069A (en) * | 2003-08-04 | 2006-11-08 | 葛兰素史密丝克莱恩生物有限公司 | Novel device |
| CN101139449A (en) * | 2006-09-06 | 2008-03-12 | 潘文强 | Special-purpose material for beverage packaging bottle cap |
| CN101177509A (en) * | 2007-10-31 | 2008-05-14 | 华东理工大学 | Polyolefin elastomer bottle cap lining material capable of being thermoplastically processed and preparation method thereof |
| CN101294056A (en) * | 2008-04-14 | 2008-10-29 | 华东理工大学 | Heat-proof bottle cap sealing material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301561A (en) * | 1999-04-21 | 2000-10-31 | Japan Crown Cork Co Ltd | Container lid provided with annular sealing material formed by injection molding |
| JP4812676B2 (en) * | 2007-03-30 | 2011-11-09 | ユニバーサル製缶株式会社 | Cap liner and cap and bottle with cap |
-
2012
- 2012-04-10 CN CN201210103351.6A patent/CN102617917B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004012515A1 (en) * | 2002-07-31 | 2004-02-12 | Merck Patent Gmbh | Laser markable carrier unit |
| CN1860069A (en) * | 2003-08-04 | 2006-11-08 | 葛兰素史密丝克莱恩生物有限公司 | Novel device |
| CN101139449A (en) * | 2006-09-06 | 2008-03-12 | 潘文强 | Special-purpose material for beverage packaging bottle cap |
| CN101177509A (en) * | 2007-10-31 | 2008-05-14 | 华东理工大学 | Polyolefin elastomer bottle cap lining material capable of being thermoplastically processed and preparation method thereof |
| CN101294056A (en) * | 2008-04-14 | 2008-10-29 | 华东理工大学 | Heat-proof bottle cap sealing material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-301561A 2000.10.31 |
| JP特开2008-254741A 2008.10.23 |
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| CN102617917A (en) | 2012-08-01 |
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Inventor after: Wang Xiaoyu Inventor after: Tu Guizhong Inventor before: Wang Xiaoyu Inventor before: Guo Liang |
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