CN203282785U - Composite product of pulp mould and plastics - Google Patents
Composite product of pulp mould and plastics Download PDFInfo
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- CN203282785U CN203282785U CN2012207217612U CN201220721761U CN203282785U CN 203282785 U CN203282785 U CN 203282785U CN 2012207217612 U CN2012207217612 U CN 2012207217612U CN 201220721761 U CN201220721761 U CN 201220721761U CN 203282785 U CN203282785 U CN 203282785U
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Abstract
The utility model discloses a composite product of a pulp mould and plastics, and belongs to the technical field of packaging products. The composite product comprises one or more layers of pulp mould layer and plastic layer composited with the pulp mould layer; when in use, the plastic layer is taken as the inner layer, and the pulp mould layer is taken as the outer layer. According to the composite product provided by the utility model, barrier property of pulp mould products is improved, so as to prevent the leakage of the inner package liquid product from damaging the outer package and polluting outer package and environment.
Description
Technical field
The utility model relates to a kind of composite article based on moulded paper pulp product, relates in particular to the composite article of moulded paper pulp product and plastics, belongs to the packing articles technical field.
Background technology
Corrugated board and corrugated case are amortizing packaging material and the packing articles of commonly using, and are used widely in the protective packaging of the external packing of the liquid form products such as fruit, beverage, drinks, dairy produce and other products.Along with environmental protection is more and more struck fire into the people's hearts; and the deterioration of environment; renewable resource is used for the packing of product and the Application and Development of moulded paper pulp product is paid attention to widely, and replaces the part corrugated board and corrugated case is used for the external packing of the liquid form products such as beverage, dairy produce, high-grade drinks and the protective packaging of other products.
Moulded paper pulp product is take string as primary raw material, adds chemical assistant, adopts the method for wet moulding to carry out moulding, then dehydrates and becomes finished product.Traditional moulded paper pulp product is because use paper pulp fiber to be raw material, and pulp fiber surface is coarse, easily absorb the performance such as moisture makes this product have certain limitation.For example; the leakage of the liquid form products such as beverage, milk, red wine can be polluted moulded paper pulp product; and make the hydraulic performance decline of moulded paper pulp product; thereby make it lose buffering package effect to packaged object; greatly have influence on the defencive function performance of moulded paper pulp product, even also can have influence on the sale of product.
As everyone knows, plastic material and goods have waterproof and dampproof barrier property., although the performance of different types of plastic material and goods is different, aspect waterproof and dampproof barrier property, significantly be better than the string series products.Paper, cardboard and moulded paper pulp product are typical string series products.In order to bring into play the performance of different materials and goods, the exploitation of people's success the composite of cardboard and plastics, and obtained successful Application on package of liquid products, obtained economic benefit preferably.
But,, because paper mould belongs to the product of three-dimensional paper technology, have the characteristics of 3 D stereo size, if but it is infeasible adopting the method compound with cardboard and plastics at present to carry out meeting of paper mould and plastics.At present, moulded paper pulp product does not relate to composite and goods and preparation method and the application that is compounded to form paper mould and plastics with plastics.The composite article of moulded paper pulp product of the present utility model and plastics; overcome the without hindrance performance every liquid form product of traditional moulded paper pulp product; reached the barrier property of liquid towards product; can prevent the leakage that the breakage of liquid form product inner packing causes; pollute moulded paper pulp product, affect the defencive function of moulded paper pulp product.Simultaneously, the barrier property of the moistureproof and waterproof of the composite article of moulded paper pulp product of the present utility model and plastics, also make it can meet the packing that the requirement product is arranged to waterproof and dampproof, enlarged the range of application of moulded paper pulp product.
The utility model content
The purpose of this utility model is to provide the composite article of a kind of moulded paper pulp product and plastics; the composite article of this moulded paper pulp product and plastics has barrier property, and the leakage that can prevent liquid form product is on the pollution of moulded paper pulp product and affect defencive function and the marketing function of moulded paper pulp product.
The utility model, in conjunction with plastic thermoforming technology and Material cladding process technology, is used it for moulded paper pulp product, improves the barrier property of moulded paper pulp product, improves the added value of moulded paper pulp product.
With paper mould product and the compound composite article of plastics, have higher barrier and namely prevented the leakage of external packing, improve the external packing performance of moulded paper pulp product as liquid form product, have novelty and practicality.
Of the present utility model have the moulded paper pulp product of barrier and a composite article of plastics, it is characterized in that, this composite article is formed by MULTILAYER COMPOSITE, the plastic layer that has comprised at least one deck paper mould layer and with this slurry molding layer, be combined with each other; During use, plastic layer is as internal layer, and the paper mould layer is as skin, and the inner plastic layer plays barrier property and the pollution-proof performance of liquid towards product, and outer paper mould layer plays buffering protection function and skeleton function.
The thickness of above-mentioned inner plastic layer is 0.025mm-0.25mm, and the thickness of outer paper mould layer is 1.5mm-4mm.
Further, this composite article, comprise three layers, comprises inner plastic layer, intermediate layer paper mould layer and outer layer plastic layer.
The thickness of above-mentioned inner plastic layer is 0.025mm-0.25mm, and the thickness of intermediate layer paper mould layer is 1.5mm-4mm, and the thickness of stating the inner plastic layer outward is 0.025mm-0.25mm.
The preparation method of the composite article of moulded paper pulp product described in the utility model and plastics comprises the following steps:
(1) making of paper mould
According to the requirement to paper mould, selecting paper pulp fiber is the raw material of outer paper mould, with the paper pulp fiber of choosing, with running water, it is diluted to the paper pulp that mass concentration is 0.8%-1.2%, moulding on paper pulp model formation machine, press dewatering, drying, thermal finalization, moulding moulded paper pulp product, the moulded paper pulp product mass dryness fraction that obtains are that 90%-95%(is that the water content of moulded paper pulp product is 5w t-10wt%).
, according to the difference of mould, can moulding have difform moulded paper pulp product.
Perhaps, buy from the market satisfactory paper pulp moulding product.
(2) making of plastic sheeting or sheet material
Selecting thermoplastic resin is the raw material of plastics, will choose a kind of thermoplastic resin, in plastic shaping, is extruded into film or sheet material on extruder.
Perhaps, select several thermoplastic resins, in plastic shaping, be coextruded into film or sheet material on extruder, film or the sheet material of the plastics composite article that this coextrusion forms are equally applicable to the utility model.
Perhaps, buy from the market plastic sheeting, sheet material.
(3) inner plastic and outer paper mould is compound
Adopt plastic thermoforming technique, on thermoforming machine, heat on the bed die that the film of step (2) or sheet material are placed on thermoforming machine, plastics are subjected to thermal softening; Then, the mold that is embedded with moulded paper pulp product is moved down, with bed die, press, plastics and moulded paper pulp product are combined with each other; Finally, upper/lower die is carried out cooling, form the composite of moulded paper pulp product and plastics, and consistent with the shape of moulded paper pulp product.
Perhaps, adopt plastic thermoforming technique, on thermoforming machine, step (2) film or sheet material are placed on the mold of thermoforming machine and heat, plastics are subjected to thermal softening; Then, the bed die that is embedded with moulded paper pulp product is up moved, with mold, press, moulded paper pulp product and plastics are combined with each other; Finally, upper/lower die is carried out cooling, form the composite article of internal layer moulded paper pulp product and outer layer plastic, consistent with the shape of paper mould.
Above-mentioned preparation method also comprises step (4):, based on the identical principle of above-mentioned steps (3), on thermoforming machine, plastic sheeting is placed on the bed die of thermoforming machine and heats, plastics are subjected to thermal softening; Then, the outer moulded paper pulp product that step (3) is obtained and the composite article of inner plastic are embedded on mold, and mold is moved down, and with bed die, press, and the plastics of bed die and the moulded paper pulp product of mold are combined with each other; Finally, upper/lower die is carried out cooling, form the composite article with inner plastic-intermediate layer paper mould-outer layer plastic three-decker, and consistent with the shape of moulded paper pulp product.
Perhaps step (4) is:, based on the identical principle of above-mentioned steps (3), on thermoforming machine, plastic sheeting is placed on mold and heats, plastics are subjected to thermal softening; Then the outer moulded paper pulp product that step (3) is obtained and the composite article of inner plastic are embedded on bed die, bed die is up moved, press with mold, formation has the composite article of inner plastic-intermediate layer paper mould-outer layer plastic three-decker, and consistent with the shape of moulded paper pulp product.
This forms the three-decker composite article of plastics-paper mould-plastics, can further improve the performance of composite article and goods, enlarges range of application.
Can be prepared into various goods according to the moulded paper pulp product of above method preparation and the composite article of plastics, perhaps select as required the suitable plastic raw materials that requires and moulded paper pulp product raw material to carry out compound, all can realize purpose.
, with respect to traditional moulded paper pulp product, the utlity model has following advantage and beneficial effect:
The utility model combines plastic thermoforming technology and Material cladding process technology, is applied to moulded paper pulp product, has improved the barrier property of moulded paper pulp product, makes the leakage of inner packing liquid form product be unlikely to destroy external packing and pollute external packing and environment.Plastics are performance barrier properties in the effect of the composite article of paper mould and plastics, and the effect of moulded paper pulp product is the performance skeleton function, the supporting plastic layer.The composite article of paper mould and plastics can be saved quantity of plastics, makes " the plastic white pollution " of contaminated environment reduce, and is conducive to environmental protection.The paper mould that method of the present utility model obtains and the composite article of plastics, compare with plant fibre paper pulp moulding, have preferably barrier, smooth surface and printing performance preferably preferably, make product more attractive in appearance, range of application and the added value of product have been improved, product both can effectively intercept leakage and the pollution of inner packing liquid form product, can be used as again the packing of moistureproof product, also can be used for the packing of exquisite gift.
Description of drawings
Fig. 1 has the paper mould of barrier property and the composite article schematic diagram of plastics, and 1 is inner plastic, and 2 is the paper mould layer.
Fig. 2 is the three-decker composite article schematic diagram of plastics-paper mould with barrier property-plastics, and 1 is inner plastic, and 2 is intermediate layer paper mould layer, and 3 is outer layer plastic.
The specific embodiment
The utility model is described in further detail by following specific embodiment and application example.Following specific descriptions are for the ease of understanding the utility model, are not used for limiting protection domain of the present utility model.
(1) be 1% with the bleaching needle-point leaf pulp fiber dilution to mass concentration with running water, on paper pulp model formation machine, through dehydration, dewatering time 30 seconds, moulding moisture content are the paper mould of 55% half hygrometric state, then dry, thermocompression forming, make mass dryness fraction and be 92% paper mould, thickness is 3mm.
(2) take high density polyethylene (HDPE) as raw material, extrusion molding thickness is the 0.15mm vinyon on extruder.
(3) on thermoforming machine, the high-density polyethylene plastics film is placed on the bed die of thermoforming machine and heats, after plastics are subjected to thermal softening, the mold that is embedded with the paper mould layer is moved down, to press 3-5 cooling after second with bed die, obtains the composite article of paper mould and high-density polyethylene plastics.The composite article of paper mould and high-density polyethylene plastics, thickness are 2.8mm, and the inner plastic surface smoothness is 135 seconds, and the bond strength of internal layer high-density polyethylene plastics and outer paper mould layer is 1.7kg/cm.
(1) bleach needlebush paper pulp as raw material take 70% bleaching leaf wood paper pulp and 30%, being diluted to mass concentration with running water is 1.2%, on paper pulp model formation machine, through dehydration, dewatering time 25 seconds, moulding moisture content 57%, then dry, thermocompression forming, obtain the paper mould layer of mass dryness fraction 95%, thickness 2mm.
(2) take polypropylene as raw material, extrusion molding thickness is the 0.25mm polypropylene plastics on extruder.
(3) on thermoforming machine, polyacrylic film is placed on the bed die of thermoforming machine and heats, after plastics are subjected to thermal softening, the mold that is embedded with the paper mould layer is moved down, to press 3-5 cooling after second with bed die, obtains the composite article of paper mould and polypropylene plastics.The paper mould that obtains and the composite article of polypropylene plastics, thickness are 2.15mm, and the inner plastic surface smoothness is 145 seconds, and the bond strength of internal layer polypropylene plastics and outer paper mould layer is 2.2kg/cm.
Obtain as mentioned above the composite article of paper mould and plastics; can bring into play the barrier property of plastics and the skeleton function of paper mould fully; reach the pollution that the leakage that prevents inner packing causes; can reach again and have moisture-proof role and protect in-built product, can better realize the purpose of this utility model.
(1) take 70% bleached wheat straw paper pulp and 30% needlebush paper pulp as raw material, being diluted to mass concentration with running water is 1.0%, on paper pulp model formation machine, through dehydration, dewatering time 30 seconds, moulding moisture content 58%, then dry, thermocompression forming, obtain the paper mould layer of mass dryness fraction 95%, thickness 3mm.
(2) take polypropylene as raw material, extrusion molding thickness is that 0.15mm polypropylene plastics or market purchase thickness are the PETG sheet material of 0.15mm on extruder.
(3) on thermoforming machine, polyacrylic film is placed on the bed die of thermoforming machine and heats, after polypropylene plastics is subjected to thermal softening, the mold that is embedded with the paper mould layer is moved down, to press 3-5 cooling after second with bed die, obtains the composite article of paper mould and polypropylene plastics.Then, on another thermoforming machine, above-mentioned paper mould and polyacrylic composite article are embedded on the mold of thermoforming machine, the polypropylene plastics bed of material of this moment contacts with mold and the paper mould layer is carried mold.pet film is placed on the thermoforming machine bed die and heats, after being subjected to thermal softening according to the ethylene glycol terephthalate plastics, bed die moves up, to press 3-5 cooling after second with mold, obtain the composite article of the three-decker of the polypropylene plastics bed of material-paper mould layer-PETG plastic layer, thickness is 3.2mm, the bond strength of the polypropylene plastics bed of material and paper mould layer is 2.2kg/cm, the bond strength of paper mould layer and PETG plastic layer is 2.3kg/cm, the smoothness in the polypropylene plastics bed of material outside is 145 seconds, the smoothness in the PETG layer outside is 140 seconds.
Claims (4)
1. the composite article of a moulded paper pulp product and plastics, is characterized in that, this composite article is formed by MULTILAYER COMPOSITE, the plastic layer that has comprised at least one deck paper mould layer and with this paper mould layer, be combined with each other.
2., according to the composite article of claim 1, it is characterized in that, the thickness of inner plastic layer is 0.025mm-0.25mm, and the thickness of outer paper mould layer is 1.5mm-4mm.
3., according to the composite article of claim 1, it is characterized in that, this composite article, comprise three layers, comprises inner plastic layer, intermediate layer paper mould layer and outer layer plastic layer.
4., according to the composite article of claim 3, it is characterized in that, the thickness of inner plastic layer is 0.025mm-0.15mm, and the thickness of intermediate layer paper mould layer is 1.5mm-4mm, and the thickness of outer layer plastic layer is 0.025mm-0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207217612U CN203282785U (en) | 2012-12-24 | 2012-12-24 | Composite product of pulp mould and plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207217612U CN203282785U (en) | 2012-12-24 | 2012-12-24 | Composite product of pulp mould and plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203282785U true CN203282785U (en) | 2013-11-13 |
Family
ID=49539165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207217612U Expired - Fee Related CN203282785U (en) | 2012-12-24 | 2012-12-24 | Composite product of pulp mould and plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203282785U (en) |
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2012
- 2012-12-24 CN CN2012207217612U patent/CN203282785U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20161224 |