[go: up one dir, main page]

CN1814509B - Thin packaging laminate and packaging container formed therefrom - Google Patents

Thin packaging laminate and packaging container formed therefrom Download PDF

Info

Publication number
CN1814509B
CN1814509B CN 200510006166 CN200510006166A CN1814509B CN 1814509 B CN1814509 B CN 1814509B CN 200510006166 CN200510006166 CN 200510006166 CN 200510006166 A CN200510006166 A CN 200510006166A CN 1814509 B CN1814509 B CN 1814509B
Authority
CN
China
Prior art keywords
package lamina
thin package
lamina material
heat sealable
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200510006166
Other languages
Chinese (zh)
Other versions
CN1814509A (en
Inventor
E·埃伦伯格
K·约纳松
T·安德松
M·哈林-霍尔姆格伦
M·安纳菲尔德特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to CN 200510006166 priority Critical patent/CN1814509B/en
Publication of CN1814509A publication Critical patent/CN1814509A/en
Application granted granted Critical
Publication of CN1814509B publication Critical patent/CN1814509B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

The invention relates to thin packaging laminate material for packaging container of liquid food. It has the following structure: out heat seal layer, thin paper layer, laminate material layer, and inner heat seal layer. The invention also relates to the packaging container for liquid or flowing food, which is made up from the laminate material.

Description

Thin package lamina material and by its packing container that forms
Technical field
The present invention relates to be used for the thin and heat sealable paper substrate package lamina material of the packing container of liquid food.The invention particularly relates to economically feasiblely, but still have full intensity and durability, and can be shaped and be sealed into this type of laminated material of the packing container of simple and flexible shape.And, though this laminated material has thin thickness, but it should have the abundant iris action that is used for food, such as the interception that is used for light sensitivity food, and client and client think the acceptable profile. this laminated material especially is very suitable for container or the sterile food packing container that extraordinary high temperature (UHT) is handled food.
Background technology
On market, exist demand for the hygienically packaged container of liquid or fluid food products, this packing container has the acceptable shelf life under environmental conditions.This type of container can be aseptic type and/or purpose be used for the type that extraordinary high temperature (UHT) is handled food or other food.They also must be fully worthwhile economically for their market prospective, therefore, forms that their package lamina material should advantageously approach and cost efficient.It needn't be shaped as the self-supporting shape that has size and grip stability, but can be configured as simple and flexible shape simply, such as pillow-like.Yet the feature that it must have is sufficient light-proofness, degenerates and/or demonstrates peculiar smell so that prevent photosensitive food in the container.
Being that ply of paper is too thin with the thin problem relevant with economically feasible paper substrate package lamina material is difficult to form sufficient shading.Therefore, the special-purpose light screening material of some type must be included in this laminated material.
Based on the packing of plastics, known introducing carbon black is as light screening material with regard to merely.
Yet, with in one deck (this layer plan is located in the inboard away from the laminated material of ply of paper) of laminated material, use carbon black as a relevant problem of light screening material be it black by thin, white but incomplete opaque ply of paper part as seen, this has given laminated material and container with can not be by the uneven gray appearance that the customer received.Yet it is very uneconomic using thicker paper to solve this problem.
Though can be by hiding black with the composite coating ply of paper that comprises pigment or by on ply of paper, being printed with color ink, these terms of settlement are expensive, conceive inconsistent with wishing the competitive low cost of package lamina material/vessel.
In addition, though hide black in the plastics of outermost hot sealing layer that can be by Chinese white being joined laminated material, this terms of settlement has caused some problem.These problems are included in the startup of the conversion manufacturing line that is used to make laminated material and close the problem in stopping time, because Chinese white is deposited on the process equipment.Therefore, if the production on the manufacturing line temporarily is converted to another product, obtained at its outermost layer by the product of Chinese white " pollution " in any case must carry out the production of the preceding several hrs of a large amount of cleanings and second kind of product, given its uneven outward appearance that can not make us accepting.And, in the outermost hot sealing layer, have Chinese white and mean that print pattern must be positioned at above the plastic layer, thereby have to use advanced or the more disadvantageous printing packaging laminated material of environment.Also have, need on print pattern, apply protective paint, in treating process, scratch and wear and tear to prevent it.And if in press have defective, whole laminated material must be dropped, and this means unnecessary waste of material.
Summary of the invention
The purpose of this invention is to provide and be used for liquid or fluid food products, thin and heat sealable paper substrate package lamina material such as the packing container of dairy products, this laminated material be fully thin and from but expense is cheap, has competitive power, yet have enough good performance with regard to health, leak tightness, intensity, covering and the outward appearance of the packing container that forms by this laminated material. from the viewpoint of conversion, should be advantageously, avoid or reduced above-mentioned at least in the problem aspect this.
The thin package lamina material of the packing container of these and other objects by being used for liquid food realizes that it has following layer structure, and order be outside to the inside from laminated material:
-outside heat sealable the layer formed by thermoplastic material,
-tissue layers,
-by having the laminate ply that Chinese white comprises that thermoplastic material is wherein formed,
-by having the heat sealable layer in inside that dark pigment comprises that thermoplastic material is wherein formed.
The invention still further relates to the packing container that forms by this laminated material.
Owing in the heat sealable layer in inside, contain dark pigment, preferred black pigment is such as carbon black, this laminated material reaches the container that is formed by it and has obtained sufficient light covering, make the food contents of container can not degenerate owing to light exposes to the open air. by in the thermoplastic laminate layer, containing Chinese white, such as titanium dioxide (TiO 2), this laminated material and the container that is formed by it have obtained acceptable white appearance, though inner dark pigment layer is arranged.
In a preferred embodiment, the thermoplastic laminate layer that has wherein comprised Chinese white directly is adhered to ply of paper, promptly without any interlayer.
Only in laminate ply, comprise Chinese white; can be located immediately on the ply of paper and the special benefits that does not comprise it in other layer is a print pattern; it is by transparent fully heat sealable thermoplastic material layer's protection there; but do not covered by it. also have; when on ply of paper, directly printing; can use low cost and the printing technology more favourable, such as aniline printing with water-based inks to environment.And, if compare with the situation that Chinese white is included in the outside heat sealable layer, the Chinese white that is deposited on the process equipment can be still less, if produce second kind of laminated material even the conversion manufacturing line temporarily is converted to, residual Chinese white can not become problem, because it is positioned in the more central layer of laminated material, below ply of paper, it is than more being difficult for seeing at skin there.
According to an aspect of the present invention, the heat sealable layer in described outside is by having 880-970kg/m 3, preferred 910-930kg/m 3The polyethylene extrusion material of density form. it can have 8-25g/m 2, preferred 10-20g/m 2, more preferably 10-15g/m also 2Weight.It can be made up of several preferred coextrusion layerings (part-layers), and wherein outermost layer is heat sealable at least.
According to another aspect of the present invention, described tissue layers is by having 30-80g/m 2, preferred 40-70g/m 2, more preferably 40-60g/m also 2The BK bleached kraft of weight form.It has sufficient basic weight and the intensity that obtains enough lamination strength with other layer. most preferably, use about 50g/m 2Ply of paper, it has obtained many advantages of comparing with thinner ply of paper. for example have seldom with curl and wrinkling relevant problem, because material is finer and close, obtained improved opacity (because can use shorter fiber and/or filler, this is not need to improve intensity owing to comparing with thinner paper), the wideer range of choice of the paper that can obtain to be fit to, hermetyic window can increase in some cases, the excessive heat because the paper of recruitment can receive and distribute, make that the local overheating of plastic sealing layer is avoided, or the like.And the stiffness of gained packing container will be modified. certainly, can use the flexible paper of other type of similar thickness and performance.It is also contemplated that the use laminated paper.
According to a further aspect of the invention, the thermoplastic material of described laminate ply is to have 880-970kg/m 3, preferred 910-930kg/m 3The polythene material of density.It can have 8-50g/m 2, preferred 10-40g/m 2, more preferably 15-30g/m also 2Weight. Chinese white is with 2wt% at least, preferred 5wt% at least, more preferably 8wt% at least also, but 20wt% at the most, preferred 15wt% at the most, also more preferably at the most the content of 12wt% be included in this layer.Suitable is that described Chinese white is a titanium dioxide, though it is contemplated that the Chinese white of other type.Because be difficult to comprise the Chinese white of bigger content in the thermoplastic laminate layer, so this layer must be thicker, in the upper end of the above scope that provides, the Chinese white of big if desired total amount is hidden the words of the dark pigment in the inner heat sealable layer.Also have, this laminate ply can be made up of several preferred coextrusion layerings, in this case, Chinese white can be included in these layerings one or more layers or all layer in.
Inner heat sealable layer is suitable to being selected from polythene material, preferably has 880-970kg/m 3More preferably 910-930kg/m 3The polythene material of density, polypropylene, thermoplastic material in ethylene vinyl acetate and the thermoplastic propene's acid copolymer (neutralization or not neutralization) is formed. and it can be made up of several preferred coextrusion layerings, its innermost layer is heat sealable at least. here, should be noted that, term " innermost layer " is meant the outmost layer in the inside of laminated material, i.e. the layer that contacts with the content of the packing container that forms thus. inner heat sealable layer can have 10-45g/m 2, preferred 13-35g/m 2, more preferably 20-30g/m also 2Gross thickness, depend on the quality of thermoplastic material.It suits to comprise that content is 0.2-2g/m 2, preferred 0.2-1g/m 2, more preferably 0.3-0.8g/m also 2Yet dark pigment., because dark pigment is not very expensive and because it is very easy to introduce in thermoplastic material, thus can imagine, it can with in addition bigger content, such as at the most 3 or 4g/m 2Comprise.Suitable is that described dark pigment is a carbon black.Under the situation that the heat sealable layer in inside is made up of several layerings, dark pigment can these layerings one or more layers or all layer in comprise.
Preferably, inner heat sealable layer was made before it is introduced in package lamina material in advance, be that it has constituted prefabricated membrane, suitable to (being total to) extrusion-blown modling, (being total to) extruded curtain coating (extrusioncasting) or (being total to) and extruded rubberizing and prepare. and blowing or cast film have the advantage of comparing with extruding layer, because it has better intensity and oxidative degradation material still less, because it prepares under lower temperature, and it has higher mechanical characteristics of control degree and lateral performance.
Heat sealable layer is to change if desired to change film and/or paper quality on the manufacturing line easily with the advantage of using prefabricated ply of paper as body layer as inside to use prefabricated membrane in thin layer pressure material according to the present invention, Food Contact layer grade for example, and not too strict to the requirement of the accuracy rate of extruding thickness of extruding layer (outside heat sealable layer and laminate ply).
Package lamina material has 60-180g/m 2, preferred 70-150g/m 2, more preferably 75-125g/m also 2Total weight.
The invention still further relates to by this class package lamina material and form packing container with liquid or fluid food products content.It for example can be shaped as has a vertical sealing-in and in the flexible pillow shape of two horizontal sealing-ins of the opposite end of container.
Description of drawings
With reference to preferred embodiment and accompanying drawing the present invention is described in more detail hereinafter now.In the accompanying drawings:
Fig. 1 has shown the cross-sectional plane according to laminated material of the present invention,
Fig. 2 has shown the packing container that the laminated material by Fig. 1 forms.
The specific embodiment
In Fig. 1, according to being expressed as 10 on the preferred overall laminate of the present invention.It is made up of four layers 12,13,14 and 15.Ply of paper 12 is made by BK bleached kraft, has about 50g/m 2Weight.The outside heat sealable thermoplastic layer 13 who extrudes has constituted the outside of the packing container that is formed by laminated material 10, and is made by low density polyethylene (LDPE) (LDPE), has about 12g/m 2Weight.Food Contact in inner heat sealable thermoplastic layer 14 and the packing container that forms by laminated material 10.It is the film of extrusion-blown modling linear low density polyethylene (LLDPE), and has 23g/m 2Weight.In this weight, 0.4g/m 2Be carbon black, it gives layer 14 with appearance of black with play shading.When the outside of laminated material 10 is watched, promptly when when layer 13 is watched, the black of layer 14 is extruded laminate ply 15 and covers.Laminate ply 15 is made by low density polyethylene (LDPE) (LDPE), and has about 17g/m 2Weight.In this weight, the 12%th, TiO 2, it gives layer 15 with white and desirable opaque outward appearance, has therefore hidden the inner heat sealable thermoplastic layer 14 of black.
Fig. 2 has shown the packing container 20 by the shaping-filling of laminated material shown in Figure 1-encapsulating method preparation.It has flexible pillow shape, has a vertical sealing-in 22 and at two horizontal sealing-in 24a, 24b of container opposite end.
As conclusion, should find, the invention is not restricted to of below specifically describing with reference to the accompanying drawings described and these embodiments of expression as just example, and the modification and the change that it will be apparent to those skilled in the art under situation about not departing from as the present invention's design of disclosing in appended claims are feasible.

Claims (19)

1. the thin package lamina material (10) that is used for the packing container (20) of fluid food products, it is made up of following layer structure, and order is outside to the inside from thin package lamina material:
-outside heat sealable the layer (13) formed by thermoplastic material,
-tissue layers (12),
-by having the laminate ply (15) that Chinese white comprises that thermoplastic material is wherein formed,
-by having the heat sealable layer in inside (14) that dark pigment comprises that thermoplastic material is wherein formed;
And wherein only in laminate ply, comprise Chinese white, make print pattern to be located immediately on the tissue layers.
2. according to the thin package lamina material of claim 1, the heat sealable layer in wherein said outside (13) is by having 880-970kg/m 3The polythene material of density form.
3. according to the package lamina material of claim 1 or 2, the heat sealable layer in wherein said outside (13) has 8-25g/m 2Weight.
4. according to the thin package lamina material of claim 1 or 2, the heat sealable layer in wherein said outside (13) is made up of two or more layerings.
5. according to the thin package lamina material of claim 1 or 2, wherein said tissue layers (12) is by having 30-80g/m 2The craft paper of weight form.
6. according to the thin package lamina material of claim 1 or 2, it has described print pattern on described tissue layers (12).
7. according to the thin package lamina material of claim 1 or 2, the thermoplastic material of wherein said laminate ply (15) is to have 880-970kg/m 3The polythene material of density.
8. according to the thin package lamina material of claim 1 or 2, wherein said laminate ply (15) has 8-50g/m 2Weight.
9. according to the thin package lamina material of claim 1 or 2, wherein said laminate ply (15) comprises 2wt% at least, but the Chinese white of the content of 20wt% at the most.
10. according to the thin package lamina material of claim 1 or 2, wherein said laminate ply (15) is made up of two or more layerings.
11. according to the thin package lamina material of claim 1 or 2, wherein said laminate ply (15) directly is adhered on the described tissue layers (12).
12. thin package lamina material according to claim 1 or 2, the heat sealable layer in wherein said inside (14) is made up of the thermoplastic material that is selected from following substances: polythene material, polypropylene, ethane-acetic acid ethyenyl ester, thermoplastic propene's acid copolymer of neutralization and unneutralized thermoplastic propene's acid copolymer.
13. according to the thin package lamina material of claim 1 or 2, the heat sealable layer in wherein said inside (14) has 10-45g/m 2Weight.
14. according to the thin package lamina material of claim 1 or 2, the heat sealable layer in wherein said inside (14) comprises that content is 0.2-2g/m 2Dark pigment.
15. according to the thin package lamina material of claim 1 or 2, the heat sealable layer in wherein said inside (14) is made up of two or more layerings.
16. according to the thin package lamina material of claim 1 or 2, wherein said dark pigment is a carbon black.
17. according to the thin package lamina material of claim 1 or 2, wherein the total weight of thin package lamina material (10) is 60-180g/m 2
18. form the packing container (20) with fluid food products content, wherein this container is by forming by each the thin package lamina material (10) according to claim 1-17.
19. according to the packing container (20) of claim 18, it has a vertical sealing-in (22) and in two horizontal sealing-ins (24a, pillow shape 24b) of the opposite end of this container.
CN 200510006166 2005-01-31 2005-01-31 Thin packaging laminate and packaging container formed therefrom Expired - Fee Related CN1814509B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200510006166 CN1814509B (en) 2005-01-31 2005-01-31 Thin packaging laminate and packaging container formed therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200510006166 CN1814509B (en) 2005-01-31 2005-01-31 Thin packaging laminate and packaging container formed therefrom

Publications (2)

Publication Number Publication Date
CN1814509A CN1814509A (en) 2006-08-09
CN1814509B true CN1814509B (en) 2011-07-06

Family

ID=36906900

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200510006166 Expired - Fee Related CN1814509B (en) 2005-01-31 2005-01-31 Thin packaging laminate and packaging container formed therefrom

Country Status (1)

Country Link
CN (1) CN1814509B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10301512B2 (en) 2014-12-30 2019-05-28 Avery Dennison Corporation Wrapping films with increased opacity

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012130110A1 (en) * 2011-03-25 2012-10-04 叶万东 Method for manufacturing packaging containers by using laminated packaging materials
CN106182891A (en) * 2016-07-21 2016-12-07 台州市珠叶机械科技有限公司 The method manufacturing packing container with laminate wrapping material
CN110744901A (en) * 2019-11-01 2020-02-04 江阴升辉包装材料有限公司 Light-tight high-barrier anti-falling liquid pesticide packaging bag film and production process thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2004-114523A 2004.04.15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10301512B2 (en) 2014-12-30 2019-05-28 Avery Dennison Corporation Wrapping films with increased opacity

Also Published As

Publication number Publication date
CN1814509A (en) 2006-08-09

Similar Documents

Publication Publication Date Title
JP5442613B2 (en) Flexible packaging composite material
JP2016020075A (en) Laminate material, and container
JP6486878B2 (en) Food container and manufacturing method thereof
CN1814509B (en) Thin packaging laminate and packaging container formed therefrom
CN1814507B (en) Thin packaging laminate and packaging container formed therefrom
US20230031748A1 (en) Method for Producing a Moulded Pulp Material for Packaging Unit and Such Packaging Unit
JP2019142036A (en) Packaging material and packaging product
JP2006082857A (en) Plastic container
US20080308564A1 (en) Package Container, Packaging Laminate and the Use of a Colour Print
JP4468122B2 (en) Synthetic resin container and manufacturing method thereof
CN1814442B (en) Method for producing thin package lamina material and forming package container
JP4752222B2 (en) Plastic container
JP2005035152A (en) Light-proofing packaging material and packaging container comprising it
CN1814508B (en) Thin-package lamina material and package container formed thereby
JP4249432B2 (en) Multi-layer laminated resin film
JP4777590B2 (en) Multilayer laminated resin film
JP2019142029A (en) Packaging material and packaging product
WO2006073341A1 (en) A thin packaging laminate and a packaging container formed thereof
JP2006082851A (en) Plastic container
JP2019142037A (en) Packaging material and packaging product
US20110019940A1 (en) Transparent pointed bag, preferably comprising pla
JP3403965B2 (en) Paper liquid container
JP2021178446A (en) Laminate for laminate tube
JP4377287B2 (en) Multilayer sheet and package comprising the multilayer sheet
JP2004066769A (en) Light-shielding packaging material, method of manufacturing light-shielding packaging material, and light-shielding packaging container

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110706

Termination date: 20180131

CF01 Termination of patent right due to non-payment of annual fee