CN1413830A - Antistaling film for tree and its production method - Google Patents
Antistaling film for tree and its production method Download PDFInfo
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- CN1413830A CN1413830A CN 02132653 CN02132653A CN1413830A CN 1413830 A CN1413830 A CN 1413830A CN 02132653 CN02132653 CN 02132653 CN 02132653 A CN02132653 A CN 02132653A CN 1413830 A CN1413830 A CN 1413830A
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Abstract
An antistaling film for the saplings to be transplanted is prepared from air-permeable high-molecular materials, antistaling agent, insulating agent and ultraviolet absorbent through mixing and modifying. It is composed of external silver-gray layer, middle black layer transparent internal layer. Its advantages are better moisture and air permeability, and high survive raet of saplings.
Description
Technical field
The invention belongs to a kind of plastics antistaling film, be specifically related to the antistaling film of a kind of sapling.
Background technology
Develop forestry, greening environment, in the work of keeping ecological balance, the forest cultivation of planting trees is our task of top priority, in China's afforestation process, the ancient method of continuing to use be with sapling in transplanting storage and transport process, the straw bags that adopt more, materials such as flaxen fiber bag packing, because performance of keeping humidity is poor, storage life is short, not anti-accumulating, the seedling percent of transplanting is low; Seedling easily does point in the transplanting process neutralization phase of surviving the winter, and causes branch when causing next year to be planted seedlings, and makes that branch is too much in the formation period, and the forest lumber recovery descends.
Summary of the invention
The object of the present invention is to provide a kind of antistaling film for tree and manufacture method thereof, the antistaling film for tree product has good fresh-keeping property, poisture-penetrability and gas permeability, solves bad accumulating keeping when transplanting sapling, and storage life is short, sapling survival rate, the problem that lumber recovery is low.
Antistaling film for tree of the present invention is to adopt the macromolecular material with certain air permeability, respectively with auxiliary agent blending and modifyings such as antistaling agent, heat preserving agent and ultra-violet absorber after product.Three layers of this divided thin films:
Skin is a silver gray, is made up of polyethylene from high pressure process (LDPE) and LLDPE (LLDPE), and weight ratio is 1: 1, adds auxiliary material ultra-violet absorber azimidobenzene, accounts for 1 ‰ of gross weight;
The middle level is a black, is made up of polyethylene from high pressure process (LDPE), LLDPE (LLDPE) and low pressure PEF (HDPE), and weight ratio is 1: 2: 1, adds auxiliary material heat preserving agent magnesium hydroxide, accounts for 1.5～3% of gross weight;
Internal layer is a water white transparency, is made up of polyethylene from high pressure process (LDPE) and LLDPE (LLDPE), and weight ratio is 1: 1, adds auxiliary material antistaling agent ferrous sulfate, accounts for 1～1.5% of gross weight.
The optimum value of above auxiliary agent is heat preserving agent magnesium hydroxide 2%; Antistaling agent ferrous sulfate 1%.
Antistaling film for tree bag of the present invention is because the air barrier property of bag and certain Air permenbility transform harmful spectrum in time to the shielding of UV sunlight, keep the interior temperature of bag to be no more than 4 ℃, make seedling in bag, present resting state, not dehydration part, do not do branch, be beneficial to survive and become a useful person; Freshness protection package of the present invention can take up 5-8 age sapling, and the every bag of amount of taking up is 100～1000, calculates by the tree age, transplant seedling phase, lifting after, pack after the pure land, the storage life can reach 6 months in bag, can become the buttress management.
Adopt three-layer co-extruded method unit during the manufacturing of antistaling film for tree of the present invention and mediate agitator at a high speed: at first various raw materials, auxiliary agent are mixed, putting into the high speed kneader stirs, add in the extruder hopper, each position temperature of control extrusion blow molding machine: 130～140 ℃ of feeding sections, 190～200 ℃ of compression sections, 180～190 ℃ of metering sections, 180～190 ℃ of die head sections; Extrusion-blown modling is cooled off, and batches to form.
Because antistaling film for tree of the present invention has been used advanced multi-layer co-extruded technology, so the product strength height, pulling force is big, and is durable, and reusable; The present invention has used the plastic products co-extrusion technology, co-extrusion of the raw material with difference in functionality together, adapt to fresh-keeping, the heatproof of packed article, cold-resistant and ultraviolet radiation resisting, have choke, resistance effect preferably, product of the present invention also can be used for the packing of food, feed and rice; Use antistaling film for tree of the present invention, can economize on the use of funds in transportation and keeping process, improve survival rate, lumber recovery also can promote the conversion of forest plantation to natural forests.
Description of drawings
Fig. 1 is the technological process of production figure of antistaling film for tree of the present invention.
Embodiment
Batch mixing 1 is that 1: 1 polyethylene from high pressure process (LDPE) and LLDPE (LLDPE) mix with weight ratio, adds 1 ‰ the absorption auxiliary agent azimidobenzene that accounts for batch mixing 1 weight;
Batch mixing 2 is that 1: 2: 1 polyethylene from high pressure process (LDPE), LLDPE (LLDPE) and low pressure PEF (HDPE) mixes with weight ratio, adds 2% the insulation auxiliary agent magnesium hydroxide that accounts for batch mixing 2 weight;
Batch mixing 3 is that 1: 1 polyethylene from high pressure process (LDPE) and LLDPE (LLDPE) mix with weight ratio, adds the 1% preservative additive ferrous sulfate that accounts for batch mixing 3 weight;
Raw material and auxiliary agent are mixed, putting into the high speed kneader stirs, add in the extruder hopper, each position temperature of control extrusion blow molding machine: 130～140 ℃ of feeding sections, 190～200 ℃ of compression sections, 180～190 ℃ of metering sections, 18～190 ℃ of die head sections, the extrusion-blown modling cooling is batched and is formed three layers of silver-colored black antistaling film for tree.
Claims (3)
1, a kind of antistaling film for tree is characterized in that, forms by three layers:
Skin is a silver gray, is made up of polyethylene from high pressure process (LDPE) and LLDPE (LLDPE), and weight ratio is 1: 1, adds auxiliary material ultra-violet absorber azimidobenzene, accounts for 1 ‰ of gross weight;
The middle level is a black, is made up of polyethylene from high pressure process (LDPE), LLDPE (LLDPE) and low pressure PEF (HDPE), and weight ratio is 1: 2: 1, adds auxiliary material heat preserving agent magnesium hydroxide, accounts for 1.5～3% of gross weight;
Internal layer is a water white transparency, is made up of polyethylene from high pressure process (LDPE) and LLDPE (LLDPE), and weight ratio is 1: 1, adds auxiliary material antistaling agent ferrous sulfate, accounts for 1～1.5% of gross weight.
2, antistaling film for tree according to claim 1 is characterized in that: the optimum value of various auxiliary agents is heat preserving agent magnesium hydroxide 2%; Antistaling agent ferrous sulfate 1%.
3, a kind of manufacture method of antistaling film for tree, it is characterized in that: at first raw material, auxiliary agent are mixed, putting into the high speed kneader stirs, add in the extruder hopper, each position temperature of control extrusion blow molding machine: 130～140 ℃ of feeding sections, 190～200 ℃ of compression sections, 189～190 ℃ of metering sections, 180～190 ℃ of die head sections; Extrusion-blown modling is cooled off, and batches to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02132653 CN1413830A (en) | 2002-07-19 | 2002-07-19 | Antistaling film for tree and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02132653 CN1413830A (en) | 2002-07-19 | 2002-07-19 | Antistaling film for tree and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1413830A true CN1413830A (en) | 2003-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02132653 Pending CN1413830A (en) | 2002-07-19 | 2002-07-19 | Antistaling film for tree and its production method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1413830A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362045C (en) * | 2004-05-19 | 2008-01-16 | 青岩产业株式会社 | Plastic film for screening ultroviolet and heat |
| CN102077773A (en) * | 2009-11-28 | 2011-06-01 | C.I.化成株式会社 | Pear-peel shaped agricultural polyolefin film |
| CN101475074B (en) * | 2009-01-22 | 2012-05-16 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
| CN103112110A (en) * | 2013-02-07 | 2013-05-22 | 卢建忠 | Method for manufacturing reused fresh-keeping isolation layer in rubber tire preparation |
| CN103299868A (en) * | 2012-03-09 | 2013-09-18 | 薛华 | Ecological weeding insect-expelling water-saving disease-resistant functional film |
| CN111716845A (en) * | 2020-04-30 | 2020-09-29 | 江阴申隆包装材料有限公司 | Fruit and vegetable packaging film for breath preservation |
-
2002
- 2002-07-19 CN CN 02132653 patent/CN1413830A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362045C (en) * | 2004-05-19 | 2008-01-16 | 青岩产业株式会社 | Plastic film for screening ultroviolet and heat |
| CN101475074B (en) * | 2009-01-22 | 2012-05-16 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
| CN102077773A (en) * | 2009-11-28 | 2011-06-01 | C.I.化成株式会社 | Pear-peel shaped agricultural polyolefin film |
| CN103299868A (en) * | 2012-03-09 | 2013-09-18 | 薛华 | Ecological weeding insect-expelling water-saving disease-resistant functional film |
| CN103299868B (en) * | 2012-03-09 | 2015-12-16 | 薛华 | Ecological weeding expelling parasite is economized on water disease-resistant functional membrane |
| CN103112110A (en) * | 2013-02-07 | 2013-05-22 | 卢建忠 | Method for manufacturing reused fresh-keeping isolation layer in rubber tire preparation |
| CN111716845A (en) * | 2020-04-30 | 2020-09-29 | 江阴申隆包装材料有限公司 | Fruit and vegetable packaging film for breath preservation |
| CN111716845B (en) * | 2020-04-30 | 2022-09-23 | 江阴申隆包装材料有限公司 | Fruit and vegetable packaging film for breath preservation |
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