CN102321345A - Internal-smooth packing sheet and preparation method thereof - Google Patents
Internal-smooth packing sheet and preparation method thereof Download PDFInfo
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- CN102321345A CN102321345A CN201110156932A CN201110156932A CN102321345A CN 102321345 A CN102321345 A CN 102321345A CN 201110156932 A CN201110156932 A CN 201110156932A CN 201110156932 A CN201110156932 A CN 201110156932A CN 102321345 A CN102321345 A CN 102321345A
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- smooth
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- sheet material
- polyester
- apet
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- B29C47/92—
Abstract
The invention discloses an internal-smooth packing sheet and a preparation method thereof. The internal-smooth packing sheet comprises the following components in percent by weight: 90-95% of polyester matrix resin, 0.1-6% of smooth masterbatch and 0.5-8% of dispersant, wherein the polyester matrix resin is amorphous polyethylene terephthalate (APET) or PET (polyethylene terephthalate) polyester modified by copolymerization, namely poly(ethylene terephthalate) glycol (PETG). The preparation method of the internal-smooth packing sheet comprises the following steps of: firstly drying weighed matrix resin, carrying out pre-crystallization treatment before drying APET resin, then weighing and adding components of the APET resin into dried matrix resin to be uniformly mixed, or feeding other weighed components after being uniformly mixed into an extruding machine in a measuring and feeding manner, extruding sheet by utilizing the extruding machine, and then shearing side and rolling so as to obtain the internal-smooth polyester sheet disclosed by the invention. The internal-smooth packing sheet disclosed by the invention has the advantages of good smooth effect, flat and smooth surface, high transparency and high strength and toughness.
Description
Technical field
The present invention relates to package sheet material, smooth package sheet material and preparation method thereof in specifically relating to.
Background technology
Polyethylene terephthalate (PET) has good barrier properties for gases, good toughness and extensibility, and transparency height and environment friendly are widely used in the packing of industries such as makeup, food, electronics, toy, printing.But the smooth property of vibrin is poor, makes troubles for the demoulding of sheet material post forming with separating.Through being coated with slipping agent outward is a kind of method that improves the smooth performance of polyester sheet eaily, but the outer polyester sheet that is coated with slipping agent is unfavorable for heat-sealing, and the outward appearance that oil mark etc. influences wrapping material may occur.
Summary of the invention
The object of the present invention is to provide a kind of transparently, smooth effective, the material surface smooth has smooth package sheet material in good intensity and the flexible, solves the outer slipping agent polyester sheet that is coated with and is unfavorable for problems such as heat-sealing and surface be not bright and clean.
Another technical problem that the present invention solves provide above-mentioned in the preparation method of smooth package sheet material.
Smooth package sheet material is made up of the component of following weight percent in of the present invention: matrix resin polyester 90% ~ 95%, smooth master batch 0.1% ~ 6%, dispersion agent 0.5% ~ 8%.
Further, above-mentioned matrix resin polyester can be amorphized polyethylene terephthalate APET or PET co-polymerization modified polyester polyethylene terephthalate-1,4 cyclohexane dimethanol ester PETG.
Dispersion agent of the present invention is polyethylene wax or OPE.
The preparation method of smooth package sheet material carried out 70 ℃ ~ 175 ℃ dryings 3 ~ 4 hours with load weighted matrix resin polyester earlier in of the present invention; For carrying out the preparatory crystallization treatment under 115 ℃ earlier before the APET resin drying; Then smooth master batch and dispersion agent weighing are added in the dry good matrix resin after good and mix; Perhaps load weighted smooth master batch and dispersant are evenly got into forcing machine through surveying the mode of feeding in the back; Utilize the forcing machine extrusion sheet, extrusion temperature is 230 ℃ ~ 280 ℃, and side cut again, rolling obtain smooth package sheet material in the present invention.
Beneficial effect of the present invention:
The slipping agent addition of smooth package sheet material is little in of the present invention, and is smooth respond well, has good intensity and toughness, and the sheet material transparency is high, and smooth surface is smooth, solved the outer slipping agent polyester sheet that is coated with and has been unfavorable for problems such as heat-sealing and surface be not bright and clean.
Embodiment
Below in conjunction with specific embodiment the present invention is described in further detail:
Embodiment 1
Press following weight: amorphized polyethylene terephthalate APET resin 90kg; The smooth master batch 3kg of RTC103, polyethylene of dispersing agent wax 7kg is after weighing is good; Earlier with amorphized polyethylene terephthalate APET 115 ℃ of preparatory crystallizations 90 minutes down, again 175 ℃ dry 3 hours down.Then the smooth master batch of RTC103 and polyethylene of dispersing agent wax are added among the dry good amorphized polyethylene terephthalate APET and mix; Utilize the forcing machine extrusion sheet; Extrusion temperature is 250 ℃ ~ 280 ℃, and side cut again, rolling obtain smooth package sheet material in the present invention.
Embodiment 2
Press following weight: polyethylene terephthalate-1; 4-cyclohexanedimethanoester ester PETG resin 95kg; The smooth master batch 0.1kg of RTC103, dispersion agent OPE 4.9kg is after weighing is good; First that polyethylene terephthalate-1,4 cyclohexane dimethanol ester PETG is following dry 4 hours at 70 ℃.Then smooth master batch of RTC103 and dispersion agent OPE are added to dry good polyethylene terephthalate-1; Mix among the 4-cyclohexanedimethanoester ester PETG; Utilize the forcing machine extrusion sheet; Extrusion temperature is 230 ℃ ~ 250 ℃, and side cut again, rolling obtain smooth package sheet material in the present invention.
Claims (4)
1. smooth package sheet material in is characterized in that being made up of the component of following weight percent: substrate polyester resin 90% ~ 95%, smooth master batch 0.1% ~ 6%, dispersion agent 0.5% ~ 8%.
2. smooth package sheet material in according to claim 1; It is characterized in that described substrate polyester resin is amorphized polyethylene terephthalate APET or PET co-polymerization modified polyester polyethylene terephthalate-1,4 cyclohexane dimethanol ester PETG.
3. smooth package sheet material in according to claim 1 is characterized in that described dispersion agent is polyethylene wax or OPE.
4. the preparation method of smooth package sheet material in; It is characterized in that earlier load weighted matrix resin being carried out 70 ℃ ~ 175 ℃ dryings 3 ~ 4 hours; For needing under 115 ℃, to carry out earlier preparatory crystallization treatment before the APET resin drying; Then smooth master batch and dispersion agent weighing are added in the dry good polyester after good and mix, perhaps load weighted smooth master batch is evenly got into forcing machine through survey hello mode in the back with dispersant, utilize the forcing machine extrusion sheet; Extrusion temperature is 230 ℃ ~ 280 ℃, smooth package sheet material in side cut again, rolling obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156932A CN102321345A (en) | 2011-06-13 | 2011-06-13 | Internal-smooth packing sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156932A CN102321345A (en) | 2011-06-13 | 2011-06-13 | Internal-smooth packing sheet and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102321345A true CN102321345A (en) | 2012-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110156932A Pending CN102321345A (en) | 2011-06-13 | 2011-06-13 | Internal-smooth packing sheet and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102321345A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105968734A (en) * | 2016-05-13 | 2016-09-28 | 金宝丽科技（苏州）有限公司 | Low temperature impact-resistant APET (Amorphous Polyethylene Terephthalate) sheet and preparation method thereof |
| CN107118520A (en) * | 2016-02-24 | 2017-09-01 | 浙江中盛新材料股份有限公司 | A kind of smooth PET sheet of high transparency and its manufacture method |
| CN111978688A (en) * | 2020-08-28 | 2020-11-24 | 深圳市品兴隆塑胶制品有限公司 | APET composite material and preparation method thereof, keyboard cover, electronic component tray and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882649A (en) * | 2003-11-26 | 2006-12-20 | 伊斯曼化学公司 | Polyester compositions for calendering |
| CN101362539A (en) * | 2008-08-30 | 2009-02-11 | 富维薄膜（山东）有限公司 | Polyester film for shrinkable cigarette pack |
-
2011
- 2011-06-13 CN CN201110156932A patent/CN102321345A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882649A (en) * | 2003-11-26 | 2006-12-20 | 伊斯曼化学公司 | Polyester compositions for calendering |
| CN101362539A (en) * | 2008-08-30 | 2009-02-11 | 富维薄膜（山东）有限公司 | Polyester film for shrinkable cigarette pack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118520A (en) * | 2016-02-24 | 2017-09-01 | 浙江中盛新材料股份有限公司 | A kind of smooth PET sheet of high transparency and its manufacture method |
| CN105968734A (en) * | 2016-05-13 | 2016-09-28 | 金宝丽科技（苏州）有限公司 | Low temperature impact-resistant APET (Amorphous Polyethylene Terephthalate) sheet and preparation method thereof |
| CN111978688A (en) * | 2020-08-28 | 2020-11-24 | 深圳市品兴隆塑胶制品有限公司 | APET composite material and preparation method thereof, keyboard cover, electronic component tray and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120118 |