CN205364658U - Paper mould bucket and thermal contraction plastic film's composite article - Google Patents
Paper mould bucket and thermal contraction plastic film's composite article Download PDFInfo
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- CN205364658U CN205364658U CN201521037747.0U CN201521037747U CN205364658U CN 205364658 U CN205364658 U CN 205364658U CN 201521037747 U CN201521037747 U CN 201521037747U CN 205364658 U CN205364658 U CN 205364658U
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- paper mould
- mould bucket
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Abstract
The utility model provides a paper mould bucket and thermal contraction plastic film's composite article, belongs to packing technical field. At the compound one deck thermal contraction plastic film in the outside of paper mould bucket, the paper mould bucket is the both ends opening, or one end opening one end is sealed. Adopt thermal contraction plastic film, performance heat -shrinkable film's the advantage that receives the thermal contraction performance to hot forming technology realizes paper mould bucket and plastic film's complex, preparation paper mould bucket and heat -shrinkable film's composite article.
Description
Technical field
This utility model relates to the composite article of paper mould and plastics, particularly relates to the composite article of a kind of paper mould bucket and heat shrinkable plastic film, belongs to packing technique field.
Background technology
Moulded paper pulp product is to adopt stereo shaping technology, by the aqueous dispersion of Plant fiber and additive, through the steps such as dehydration, wet pressing, dry, thermal finalization, ornamenting, the environmental protection type packing goods made.
Paper mould bucket is a kind of novel moulded paper pulp product.Due to the bucket body structure having, paper mould bucket has the effect containing solid matter, so that paper mould bucket has actual application value.
Heat shrinkable plastic film is to adopt plastic molding processing technology, plastic sheeting is not carried out after biaxial tension thermal finalization process, and it is rapidly cooled to below vitrification point, macromolecular orientation is made to be " frozen ", this plastic sheeting also exists very big internal stress, bigger contraction can be produced if being heated, namely there is heat-shrinkable.
Heat shrinkable plastic film can shrink effect because of being heated of its uniqueness, it is possible to for skin packaging or the assembly package of product, achieves and is widely applied.
It is known that paper products are cellulose, hemicellulose, lignin etc. because of the main component of its raw material Plant fiber, so that it has comparatively serious defect in water resistance etc..Moulded paper pulp product is no exception, there is the liquid substances such as opposing moisture and damages very poor shortcoming.
The problem very poor in order to improve the liquid substances such as paper mould bucket opposing outside moisture, the outside at paper mould bucket can be considered, increase by one layer of material that the liquid substances such as moisture are had resistant function, barrel-shaped with paper mould become composite and goods so that problem is addressed.
It is known that plastics are a kind of water-resistance macromolecular materials, plastic material therefore can be selected as the material resisting the liquid substances such as moisture of paper mould bucket.But, common plastic sheeting, when being compounded in the outside of paper mould bucket, implement more complicated, difficult, compound cannot be completed even.
But, adopt the compound that heat-shrinking plastics allows for plastic sheeting and paper mould bucket to become easy enforcement.This is due to heat shrinkable plastic film, has after being heated and can produce bigger contractility and shrinkage factor, and the plastic sheeting after the contraction made tightly is wrapped in the outer layer of paper mould bucket.
The defect that this utility model is not easily implemented for the shortcoming of the liquid substances such as paper mould bucket not water resistant and common plastic film and paper mould bucket compound, adopt heat shrinkable plastic film, play the advantage of the heat shrinkable performance of heat-shrinkable film, and binding agent has plastics and paper material is bonded firmly adhesive effect, realize the compound of paper mould bucket and plastic sheeting with thermoforming process, prepare the composite article of paper mould bucket and heat-shrinkable film.
Utility model content
This utility model adopts heat shrinkable plastic film, play heat-shrinkable film and there is the advantage of heat shrinkable performance, and have by binding agent plastics and paper material are bonded firmly adhesive effect, the compound of paper mould bucket and plastic sheeting is realized with thermoforming process, prepare the composite article of paper mould bucket and heat-shrinkable film, solve the shortcoming of the liquid substances such as paper mould bucket not water resistant and common plastic film and defective workmanship that paper mould bucket compound is not easily implemented.
At present, market still not having composite and the goods of paper mould bucket and the heat shrinkable plastic film prepared with heat shrinkable plastic film outside paper mould bucket, this utility model has novelty, novelty and practicality.
The paper mould bucket that this utility model adopts is easy to make, and is also easy to obtain from the market.Such as, South Asia, Guangzhou paper pulp model equipment company limited has the technology producing paper mould bucket, and Yinchuan Fubang Printing Co., Ltd. can produce paper mould bucket, carries out the packaging of the agricultural product such as rice, mixed grain rice.
The composite article of a kind of paper mould bucket and heat shrinkable plastic film, it is characterised in that at one layer of heat shrinkable plastic film of outside compound of paper mould bucket, described paper mould bucket is both ends open, or one end open one end closure.
Also having PUR binding agent between paper mould bucket and heat shrinkable plastic film, PUR binding agent passes through the thermal contraction disposable outside being compounded in paper mould bucket simultaneously by hot melt, heat shrinkable plastic film.
The heat shrinkable plastic film that this utility model adopts also is easy to make, it is possible to adopt the plastic shaping such as extrusion-blown modling, biaxial tension and process technology to produce.Meanwhile, heat shrinkable plastic film is also easy to obtain from the market.At present, market having various heat shrinkable plastic film, their shrinkage factor is not quite similar.Such as, the percent thermal shrinkage of thermal contraction polyethylene (PE) thin film is horizontal 15%～30%, longitudinally 50%～70%.The lateral shrinkage of OPS oriented polystyrene (OPS) can reach about 74%.Percent thermal shrinkage through processing common polyethylene terephthalate (PET) thin film is 30% to the maximum.The percent thermal shrinkage of modified polyethylene terephthalate (PET) thin film is up to more than 70%.
Paper mould bucket of the present utility model is relatively simple easy with the preparation technology of the composite of heat shrinkable plastic film and goods.The preparation technology that can adopt is divided into two kinds, and the first is by adhesive coated combination process on paper, and the second is by adhesive coated combination process on heat shrinkable plastic film.
The combination process of the first paper mould bucket and heat shrinkable plastic film, by adhesive coated combination process step on paper mould bucket be namely:
1, in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
2, the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine, at a certain temperature, keep appropriate time, and make paper mould bucket and heat shrinkable plastic film tightly combine.Binding agent makes to have between paper mould bucket and heat-shrinking plastics close adhesive effect, and the risk of splitting will not occur.
The combination process of the second paper mould bucket and heat shrinkable plastic film, by adhesive coated combination process step on heat shrinkable plastic film be namely:
1, being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
2, the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine, at a certain temperature, keep appropriate time, and make paper mould bucket and heat shrinkable plastic film tightly combine.Binding agent makes to have between paper mould bucket and heat-shrinking plastics close adhesive effect, and the risk of splitting will not occur.
The binding agent that this utility model adopts is heat-fusible adhesive or polyurethane binder.Heat-fusible adhesive is the constituents such as the class adhesion substances such as ethylene-vinyl acetate copolymer, polyester, polyamide, polyacrylic acid, polyacrylate, low molecular polyethylene and random polypropylene and tackifying resin, plasticizer, wax class, antioxidant.
Usefulness of the present utility model has much.First, paper mould bucket, heat-shrinkable film are easily to obtain from the market.Secondly, paper mould bucket and heat shrinkable plastic film are to rely on the thermal contraction performance of heat shrinkable plastic film and carry out compound, have the advantage that operation is simple.3rd, have employed binding agent so that the paper mould bucket after compound and the composite of heat shrinkable plastic film and the paper layer of goods are tightly combined with plastic layer, layering will not occur and peel off.4th, the composite of paper mould bucket and heat shrinkable plastic film and goods, there is the performance of the liquid substances such as water resistant, improve the performance of paper mould bucket, expand the range of application of paper mould bucket.Finally, the composite of paper mould bucket and heat shrinkable plastic film and goods, with the addition of new product for composite paper-plastic material and goods.
Accompanying drawing explanation
Fig. 1 is the composite article structural representation of paper mould bucket and heat shrinkable plastic film.
1 is paper mould bucket, and 2 is heat shrinkable plastic film.
Detailed description of the invention
By specific examples below, the utility model is described in further detail.Following specific descriptions are for the ease of understanding this utility model, are not for limiting protection domain of the present utility model.
Embodiment 1
Raw material: (1) paper mould bucket, for cylindrical shape, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, diameter 10cm, is highly 18cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
(2) the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 2
Raw material: raw material: (1) paper mould bucket, for cylindrical shape, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, diameter 10cm, is highly 18cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
(2) the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 2 and embodiment 1
Embodiment 3
Raw material: (1) paper mould bucket, for cylindrical shape, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, diameter 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
(2) the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 4
Raw material: raw material: (1) paper mould bucket, for cylindrical shape, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, diameter 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
(2) the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 5
Raw material: (1) paper mould bucket, for cylindrical shape, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, diameter 20cm, is highly 25cm.(2) heat shrinkable plastic film, oriented polystyrene (OPS) heat-shrinkable film, thickness is 0.015mm～0.35mm.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
(2) the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine.Process conditions are: temperature 100 DEG C, time 1min.
The performance of paper mould bucket and thermal contracting directional polystyrene (OPS) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 6
Raw material: raw material: (1) paper mould bucket, for cylindrical shape, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, diameter 20cm, is highly 25cm.(2) heat shrinkable plastic film, oriented polystyrene (OPS) heat-shrinkable film, thickness is 0.015mm～0.35mm.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
(2) the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine.Process conditions are: temperature 100 DEG C, time 1min.
The performance of paper mould bucket and thermal contracting directional polystyrene (OPS) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 7
Raw material: (1) paper mould bucket, for regular hexagon, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, and orthohexagonal girth is 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
(2) the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 8
Raw material: raw material: (1) paper mould bucket, for regular hexagon, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, and orthohexagonal girth is 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
(2) the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 9
Raw material: (1) paper mould bucket, for regular hexagon, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, and orthohexagonal girth is 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene terephthalate (PET), thickness is 0.015mm～0.35mm.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
(2) the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine.Process conditions are: temperature 140 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 10
Raw material: raw material: (1) paper mould bucket, for regular hexagon, adopts 30% bleached softwood wood pulp and 70% bleaching leaf wood pulp production, and whiteness is 75%, thickness 2mm, and orthohexagonal girth is 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene terephthalate (PET) heat-shrinkable film, thickness is 0.015mm～0.35mm.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
(2) the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine.Process conditions are: temperature 140 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 11
Raw material: (1) paper mould bucket, for cylindrical shape, employing 100% non-bleached sulphate softwood pulp, thickness 2mm, diameter 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) in the outside coated with adhesive of paper mould bucket, heat shrinkable plastic film is rolled in outside paper mould bucket.
(2) the paper mould bucket of heat shrinkable plastic film will be wrapped with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Embodiment 12
Raw material: raw material: (1) paper mould bucket, for cylindrical shape, employing 100% non-bleached sulphate softwood pulp, thickness 2mm, diameter 20cm, is highly 25cm.(2) heat shrinkable plastic film, polyethylene (PE) heat-shrinkable film, thickness is 0.015mm～0.35mm, and shrinkage factor is horizontal 15%～30%, longitudinally 50%～70%, and shrinkage temperature is 120 DEG C～180 DEG C.(3) binding agent, ethylene vinyl acetate copolymer (EVA) hot melt adhesive, softening point is 82.5 DEG C, and melt viscosity is 5800mPa.s180 DEG C.
Combination process step:
(1) being coated with binding agent on heat shrinkable plastic film, the heat shrinkable plastic film being coated with binding agent is wrapped in the outside of paper mould bucket.
(2) the paper mould bucket of the heat shrinkable plastic film of coating adhesive will be enclosed with, put in heat shrinkable package forming machine.Process conditions are: temperature 130 DEG C, time 1min.
The performance of paper mould bucket and thermal contraction polyethylene (PE) plastic sheeting composite and goods: goods uniform bubble-free, Failure type is the cohesional failure of paper mould bucket.
Above example further demonstrates that, adopt thermal contraction forming technique, adhesive effect by means of binding agent, paper mould bucket and heat shrinkable plastic film are carried out compound, preparing composite and the goods of paper mould bucket and plastics, in technique, operation is simple, and product properties is improved, there is the liquid substances such as opposing moisture, because the effect of binding agent makes to be firmly combined with between paper mould layer and plastic layer.The composite of this paper mould bucket and plastics and goods, add and with the addition of new product for composite paper-plastic material and goods, have a wide range of applications approach.
It is apparent to those skilled in the art that above-described embodiment is illustrating this patent, be not intended that the restriction to this patent.Can make improvements as required, combine, sub-combination and conversion, all of improvement, combination, sub-combination, conversion and equivalence are replaced, and are all incorporated in appended scope of the claims.
Claims (1)
1. the composite article of a paper mould bucket and heat shrinkable plastic film, it is characterised in that at one layer of heat shrinkable plastic film of outside compound of paper mould bucket, described paper mould bucket is both ends open, or one end open one end closure；Also having PUR binding agent between paper mould bucket and heat shrinkable plastic film, PUR binding agent passes through the disposable outside being simultaneously compounded in paper mould bucket of thermal contraction by hot melt, heat shrinkable plastic film.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398095A (en) * | 2015-12-14 | 2016-03-16 | 北京印刷学院 | Composite product of paper pulp molding barrel and thermal contraction plastic film and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398095A (en) * | 2015-12-14 | 2016-03-16 | 北京印刷学院 | Composite product of paper pulp molding barrel and thermal contraction plastic film and preparation method |
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