CN1386679A - Covering material torn off easily and its making method - Google Patents
Covering material torn off easily and its making method Download PDFInfo
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- CN1386679A CN1386679A CN 02123884 CN02123884A CN1386679A CN 1386679 A CN1386679 A CN 1386679A CN 02123884 CN02123884 CN 02123884 CN 02123884 A CN02123884 A CN 02123884A CN 1386679 A CN1386679 A CN 1386679A
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- density polyethylene
- layer
- outside face
- aluminium foil
- coated
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Abstract
A cover material for the package of food or beverage is made through printing on upper surface of art paper, coating low-density polyethene as adhesive on its lower surface, adhering aluminium foil, and coating the modified low-density polyethene as hot sealing layer on the aluminium foil. Said modified low-density polyethene is prepared from coating-class low-density polyethene, antisticking agent, antistatic agent and atoleine. Its advantages are high sealing performance and easy opening.
Description
Technical field
The invention belongs to a kind of relating to paper is the instant food of base material or lid material of drink packing thing and preparation method thereof.
Background technology
Before the present invention realizes, be to adapt to environmental protection requirement, be widely used in originally instant food or drink as: the polystyrene foamed of bowl instant noodle (PSP) by withdraw from use gradually, the employing in generation is the packing of above-mentioned food or drink with paper.In present known technology, because lid material and the packing material of packing material bonds comparatively firmly, during lid material that people in use unpack, easily tear and cover material, thereby destroyed the integraty of this lid material, it is very inconvenient to use.
Summary of the invention
The objective of the invention is: a kind of covering material torn off easily and preparation method thereof is provided, thereby makes packing material can obtain sealing, can when opening easily, keep covering the integraty of material again, thereby overcome the problem that exists in the above-mentioned background technology.
Technical solution of the present invention is: described covering material torn off easily, with the art paper is base material, the upper surface of described art paper is printed with printing ink, adhesive linkage evenly is coated on the lower surface of art paper, the aluminium foil layer close attachment is in the outside face of adhesive linkage, bond layer is coated on the outside face of aluminium foil layer, evenly is coated with harmless modified low-density polyethylene hot sealing layer on the outside face of described bond layer.
The method for making of described covering material torn off easily, comprise that the method with routine is that material is at the lower surface coating adhesive linkage of art paper, with the outside face of aluminium foil layer close attachment in adhesive linkage at the upper surface printing ink layer of art paper, with the low density polyethylene (LDPE), bond layer is coated on the outside face of aluminium foil layer, evenly applies the modified low-density polyethylene hot sealing layer that is mixed and made into by harmless low density polyethylene (LDPE) (applying level), antiblocking agent, antistatic additive, liquid paraffin with conventional approach at the outside face of described bond layer.During fabrication, can adopt conventional processing equipment as: the bimodulus head drenches the film machine, the automatic press mould cutting machine is processed under the technological condition of routine.
In the described method for making, the constituting of described modified low-density polyethylene: 100 parts of commercially available low density polyethylene (LDPE)s (applying level), 0.5-20 part antiblocking agent, 0.5-20 part antistatic additive, 0.1-3 part liquid paraffin.During making, after low density polyethylene (LDPE), antiblocking agent, the antistatic additive of aforementioned proportion fully stirred 15-20 minute, the liquid paraffin that adds aforementioned proportion is stirred, screw rod extrusion temperature by conventional coating machine is 330-340 ℃, extrude and evenly be coated on the outside face of described aluminium foil, punch die becomes individual lid material then, and the coating grammes per square metre of hot sealing layer is 18.5g/m
2, coating thickness is 20 μ.
In the described method for making, low density polyethylene (LDPE) itself and paper bowl polyethylene coating have heat sealability, but do not have easy-to-rupture, add in addition modification of antiblocking agent, and it is peelable that heat-sealing is shown as, thereby reach the effect that can easily tear.But antiblocking agent mixes with low density polyethylene (LDPE) and extrudes and easily produces static after drenching film, cause the difficulty that becomes to open towards film, add antistatic additive and eliminate this situation, because antiblocking agent is a powdery, badly mix with low density polyethylene (LDPE), the purpose that adds liquid paraffin can be evenly distributed on around the low density polyethylene (LDPE) antiblocking agent powder, reaches the effect of cohesion.
When the lid material that uses this method manufacturing was fitted at the packing material that scribbles polyethylene coating with the surface, heat seal strength was 8N-18N/15mm, can reach fully easily to tear and the effect of being kept perfectly property.
In appended drawings 1 the structural representation accompanying drawing for covering material torn off easily among the present invention: art paper 1, ink lay 2,, adhesive linkage 3, aluminium foil layer 4, bond layer 5, hot sealing layer 6.
The specific embodiment
1. after 100 parts of commercially available low density polyethylene (LDPE)s, 1 part of antiblocking agent, 1 part of antistatic additive fully being stirred 15-20 minute, adding 0.1 part of liquid paraffin is stirred, bimodulus head pouring film machine operation screw rod extrusion temperature by routine is 330-340 ℃, extrudes and evenly be coated on the outside face of described adhesive phase.The coating grammes per square metre of described hot sealing layer is 18.5g/m
2, coating thickness is 20 μ.Carry out moulding with the automatic press mould cutting machine.The heat seal strength of hot sealing layer and paper bowl polyethylene coating is 15-18N/15mm.
2. after 100 parts of above-mentioned low density polyethylene (LDPE)s, 2.5 parts of antiblocking agents, 2.5 parts of antistatic additive fully being stirred 15-20 minute, adding 0.5 part of liquid paraffin is stirred, the screw rod extrusion temperature that bimodulus head by routine drenches the film machine operation is 330-340 ℃, extrudes and evenly be coated on described adhesive linkage surface.The coating grammes per square metre of described hot sealing layer is 18.5g/m
2, coating thickness is 20 μ.Carry out moulding with the automatic press mould cutting machine.The heat seal strength of hot sealing layer and paper bowl polyethylene coating is 12-15N/15mm.
3. with 100 parts of above-mentioned low density polyethylene (LDPE)s, 18 parts of antiblocking agents, 18 parts of antistatic additive, fully stir after 15-20 minute, adding 2 parts of above-mentioned liquid paraffins is stirred, the extrusion temperature that bimodulus head by routine drenches film machine operation screw rod is 330-340 ℃, extrudes and evenly be coated on the outside face of described bond layer.The coating grammes per square metre of described hot sealing layer is 18.5g/m
2, coating thickness is 20 μ.Carry out moulding with the automatic press mould cutting machine.The heat seal strength of hot sealing layer and paper bowl polyethylene coating is 8-12N/15mm.
Claims (5)
1, a kind of covering material torn off easily, with the art paper is base material, the upper surface of described art paper is printed with printing ink, adhesive linkage evenly is coated on the lower surface of art paper, the aluminium foil layer close attachment is in the outside face of adhesive linkage, and the bond layer that is coated on the aluminium foil layer outside face, it is characterized in that on the outer surface layer of described bond layer, evenly being coated with the hot sealing layer made from harmless modified low-density polyethylene.
2, a kind of method for making of covering material torn off easily, comprise that the method with routine is that material is at art paper lower surface coating adhesive linkage, with the outside face of aluminium foil layer close attachment in adhesive linkage at the upper surface printing ink layer of art paper, with the low density polyethylene (LDPE), bond layer is coated on the outside face of aluminium foil layer, it is characterized in that evenly applying the modified low-density polyethylene hot sealing layer that is mixed and made into by harmless low density polyethylene (LDPE) (applying level), antiblocking agent, antistatic additive, liquid paraffin with conventional approach at the outside face of described bond layer.
3, method for making according to claim 2 is characterized in that described modified low-density polyethylene is made of 100 parts of commercially available low density polyethylene (LDPE)s, 0.5-20 part antiblocking agent, 0.5-20 part antistatic additive, the mixing of 0.1-3 part liquid paraffin.
4, according to claim 2,3 described method for makings, after it is characterized in that low density polyethylene (LDPE), antiblocking agent, antistatic additive with aforementioned proportion fully stirs 15-20 minute, the liquid paraffin that adds aforementioned proportion is stirred, extrusion temperature by conventional coating machine operation screw rod is 330-340 ℃, extrudes and evenly be coated on behind the outside face of described aluminium foil layer dry.
5, method for making according to claim 2, the coating grammes per square metre that it is characterized in that described hot sealing layer is 18.5g/m
2, coating thickness is 20 μ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123884 CN1386679A (en) | 2002-07-08 | 2002-07-08 | Covering material torn off easily and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123884 CN1386679A (en) | 2002-07-08 | 2002-07-08 | Covering material torn off easily and its making method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1386679A true CN1386679A (en) | 2002-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02123884 Pending CN1386679A (en) | 2002-07-08 | 2002-07-08 | Covering material torn off easily and its making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1386679A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386788A (en) * | 2013-07-02 | 2013-11-13 | 余姚市康乐彩印包装有限公司 | Laminate-paper easy-pulling cover and preparation method thereof |
| CN105151565A (en) * | 2015-09-15 | 2015-12-16 | 张家港永和包装印务有限公司 | Hot seal cap for container-type packing of instant noodles |
| CN105291450A (en) * | 2014-07-29 | 2016-02-03 | 杭州顶正包材有限公司 | Easily-uncovered cup cover film for paper/PE cup and production process thereof |
-
2002
- 2002-07-08 CN CN 02123884 patent/CN1386679A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386788A (en) * | 2013-07-02 | 2013-11-13 | 余姚市康乐彩印包装有限公司 | Laminate-paper easy-pulling cover and preparation method thereof |
| CN103386788B (en) * | 2013-07-02 | 2015-12-23 | 余姚市康乐彩印包装有限公司 | A kind of film papery Easy tearing lid and preparation method thereof |
| CN105291450A (en) * | 2014-07-29 | 2016-02-03 | 杭州顶正包材有限公司 | Easily-uncovered cup cover film for paper/PE cup and production process thereof |
| CN105151565A (en) * | 2015-09-15 | 2015-12-16 | 张家港永和包装印务有限公司 | Hot seal cap for container-type packing of instant noodles |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |