CN1640781B

CN1640781B - Packing system for detergent cube

Info

Publication number: CN1640781B
Application number: CN2005100059152A
Authority: CN
Inventors: P·K·拉
Original assignee: Unilever NV
Current assignee: Unilever NV
Priority date: 2004-01-16
Filing date: 2005-01-14
Publication date: 2012-03-21
Anticipated expiration: 2025-01-14
Also published as: ZA200500240B; BRPI0500071A; BRPI0500071B1; CN1640781A

Abstract

The invention relates to a packaging system for a forming washing product. The packaging system comprises a first PET film with thermal sealed sides and non-thermal sealed back, a second PET film with thermal sealed sides and non-thermal sealed back, and a transparent stacked structure formed by that the non-thermal sealed backs of the first PET film and the second PET film suitably overlay together. The washing product can be packed in the stacked structure. The central part of the stacked structure forms a lapped seal to seal together the inside and the outside of the stacked structure, and the end seal is formed between the inside and the outside. The non-thermal sealed side of the stacked structure can include printed matters.

Description

A kind of packaging system of detergent block

Technical field

The present invention relates to the packing of detergent block and similar products, be specifically related to a kind of packaging system that comprises transparent packaging material.Except combining the printed matter; Transparent packing can improve the aesthetics of the cleaning product of packing; Help to keep the storage characteristics of hoping, but the detergent block actv. is stored and transportation, can under different transportations and condition of storage, keep its quality and characteristic simultaneously.

Background technology

Known that prior art can provide wrapper,, had extruded polyethylene coating or hot melt lacquer coat on it like surface color lithograph paper, Maplitho or poster paper.Also know surface color lithograph paper, Maplitho or poster paper can stacked PET (polyethylene terephthalate) or BOPP (Biaxially oriented polypropylene) layer to print surface, hot melt lacquer coated is to the another side of paper.PET or the BOPP that also knows back up is stacked to surface color lithograph paper, Maplitho or poster paper and hot melt lacquer coated to another side; Or the PET of said back up or BOPP be stacked to metallization PET or metallization BOPP and be stacked to surface color lithograph paper, Maplitho or poster paper again and hot melt lacquer coated to another side, or the PET/BOPP of said back up is stacked to BOPP, PET lamination and also is stacked to combinations such as poly-vinyl again.In addition, also know card board package, such as card board package based on surface printing paper, have or do not have print surface the BOPP/PET lamination, be laminated to the PET or the BOPP of the back up of card board package.

Also know and to use packaging film,, come packaging product such as multilayer heat seal packaging film.The polyethylene terephthalate of biaxial tension generally is called " oriented polyester " " OPET ", is a kind of very famous packaging film.

US Pat 4,765,999 disclose the non-directional heat seal film of multilayer, and it has the base layer of polyethylene terephthalate (polyester) or polyester copolymer and the heat seal superficial layer of at least one copolyester.These films are fit to replace heat seal OPET film, are used for strict occasion, such as the microwave popcorn bag.It is important that compare with the crystallographic property of OPET film, the amorphous character of these non-directional films can be brought extra advantage.

European patent 1121305B1 discloses a kind of soap-cake; Has horizontal packing around at least a portion longitudinal length; The rigidity reinforcement, it comprises the piece of rigid material of the outside face with plastic material formation, wherein the rigidity reinforcement material of at least a portion is transparent.If find to pack around at least one section longitudinal length of soap-cake, and by plastic material the rigid pipe of each outside face at least is provided respectively, the mouldy of soap will be avoided fully, propose such packing in view of the above.

European patent 1183193B1 discloses another kind of soap-cake, has transparent packing, and said packing is generally rectangle, has the less both sides of size, and the size of both sides is bigger in addition.First inner membrance surrounds said soap-cake basically, in the both sides of reduced size opening is arranged; The second basic semi-translucent adventitia places on said first film, and covers said soap-cake fully, it is characterized in that; Said inner membrance is transparent basically; The light that sees through surpasses 85%, and diaphaneity surpasses 90%, and said first film is 2: 1 to 5: 1 with the thickness ratio of said second film; The ratio of rigidity of said first film and said second film is 7: 1 to 35: 1; Said soap-cake is the semi-translucent soap-cake.First film selectively is provided with rigid pipe, and so that the structural defence to soap to be provided, second film surrounds the soap-cake and first film fully simultaneously.

Can know from top introduction; Although be used to pack the packing of detergent block many variations can be arranged; Can know from prior art; The manufacturing of the packing of present various variations is very complicated, and cost is very high, perhaps can not provide packaged product effectively to transport desirable mechanical strength and rigidity.In addition, require at washer solvent under the situation of transparent packing, it is more complicated that these problems become.In addition, the major part of also finding these known package has problems on the fragrance of protecting the product specific (special) requirements to give to protect effectively or limits, especially for the band aroma product, such as detergent block and similar products.In addition, find that also there is the problem that seals distortion/contraction in the packing of discussing above some at the cleaning product of packing sometimes under elevated temperature heat leak free situation.

Summary of the invention

The packaging system that the purpose of this invention is to provide a kind of detergent block or similar products has transparent cleaning product package, has good mechanical strength and rigidity, therefore has good transport performance and desired storage characteristics.

Another object of the present invention provides a kind of packaging system, has very high rigidity, well processability and better moulding alerting ability.

Another purpose of the present invention provides the packaging system of a kind of detergent block and similar products; Except excellent protection capping as product; Also make packaged products keep required attractive in appearance, also as effective barrier of fragrance, to keep the fragrance of detergent block better.

Another purpose of the present invention provides the packaging system of detergent block and similar products, and it can avoid the restriction of multiple traditional packing, as is sealed in distortion, contraction etc. under the high sealing temperature.

Another object of the present invention provides the durable transparent packaging system of detergent block and similar products, and it allows to be provided with printing and/or semi-translucent window structure.

Another object of the present invention provides the technology of packing detergent block and similar products, and it uses the heat seal temperature window of broad, and can obtain the special quality packing through having cost-benefit mode, and has processability easily.

Therefore, the invention provides a kind of packaging system of detergent block, comprise two PET films, have heat seal and non-thermosealed side separately.Non-heat seal side can be laminated to together, forms range upon range of PET membrane structure, is used to pack detergent block, and overlapping part is carried out heat seal, and the packing of surrounding detergent block is provided.

Therefore, according to an aspect of the present invention, a kind of packaging system of cleaning product of moulding is provided, it comprises:

The one PET film has the heat seal side and the non-thermosealed back side;

The 2nd PET film also has the heat seal side and the non-thermosealed back side;

The said non-heat seal side of the said first and second PET films can be laminated to together; Form transparent stepped construction; Detergent block can be packaged in the said stepped construction, and the core of said stepped construction has formed lap seal, and the inboard and the outside of said stepped construction is sealed together; End seal forms between the outside of said stepped construction and inboard, and said stepped construction is the double-layer PET film combination that said heat seal side is positioned at the said stepped construction outside.

The cleaning product prior art of the moulding that this paper mentioned is existing, comprises particularly as being used to traditionally to wash the dishes, wash clothes and being used for the detergent block and the sheet of personal hygiene.The latter is being called soap-cake traditionally, although can partly or entirely make with other detergent surfactants, rather than adopts fatty acid soaps.Term " detergent block " also is used to represent the cleaning product of all this shapes.

According to a preferred aspect of the present invention, has printed matter at least one non-heat seal side of stepped construction.Therefore this printed matter can be seen through transparent film.

Has printed matter on the non-heat seal side of first film of said stepped construction according to a further preferred aspect of the invention.

In the packaging system of introducing in the above of the present invention, the double casing of heat seal PET with non-heat sealing part of each layer can provide excellent protection to the printed matter on the packing, and can improve the aesthetic measure of product; On the other hand, can make transparent packing have bigger rigidity and good mechanical strength and rigidity.

According to a further aspect in the invention; The packaging system that comprises the hyaline layer stack structure of detergent block and similar products is provided; Stepped construction comprises the ground floor of heat seal PET of the non-heat sealing part of back up; The non-thermosealed back layer of the second layer of heat seal PET is laminated to the non-heat sealing part of the back up of ground floor, and wherein the Printing Zone comprises clear area or window, watches product so that see through packing.

Therefore the rhythmo structure of introducing above of the present invention can make transparent cleaning product packing keep the mechanical strength and the rigidity of hoping on the one hand; On the other hand; The Printing Zone of variation is provided, himself and/or be combined with shape of carrying out packaged products and structure and help make packaged products more attractive in appearance.

According to a preferred aspect of the present invention, the detergent block of packing is rectangular shape basically, all sides of centre portion be the plane or comprise recess, but preferably surpass the convex area on plane.The bight can be 90 degree or near 90 degree, or has fillet a little.

Therefore the preferred embodiment that constitutes the hyaline layer stack structure of packaging system of the present invention comprises heat seal PET back up or that under lining cement helps, be stacked to another layer heat seal PET.Particularly, the back layer of the printing of first heat sealing layer is laminated to the non-heat seal side of the second layer.As stated, printed design becomes to have window (clear area), makes the user can see the part that needs of cleaning product, even under the situation of the detergent block of packing.Detergent block can also be packaged into, and making central seal is lap seal (inboard of lamination and outer side seal), and preferably a part is between the outside and the outside of lamination for end seal, and a part is between the inboard and the outside.

It is important that the packaging system of introducing above with translucent cleaning product packing form provides the packaging structure of a kind of moulding cleaning product and similar products, it has very good mechanical strength, well transport performance and rigidity.Importantly, the double-layer PET film combination that is positioned at the structure outside of heat seal side have better processability can and mechanical characteristics and better forming characteristics.Particularly, combination makes the elevated-temperature seal of packing can not make the hermetic unit distortion or shrinks like this, therefore uses and has greater flexibility when using this packaging system.

In addition, the double casing that is proposed has the rigidity and the mechanical characteristics of hope except making structure, and the printing that also helps to keep packing needs can be out of shape in transportation and storage process or disappear.In addition, double casing helps to keep the barrier of hoping, avoids the fragrance of packaging product to disappear.

The PET film available heat leakproofing material that packaging system adopts is made through the technology of the existing manufacturing heat seal of prior art film.Known technology is included in the process of making film and applies copolymer in a superficial layer, constitutes the heat seal side of packing.

Although can adopt the technology of the package of any cleaning product, preferred technology comprises the encapsulation packing, and wherein central seal is a lap seal, and end seal is between the outside of lamination and the outside and between the outside and the inboard.

Description of drawings

Details of the present invention shows in the accompanying drawings, has shown the example of film and lamination and the use in packing among the figure.

Fig. 1 has shown the double-deck heat seal PET film that is used for packaging system of the present invention;

Fig. 2 shown packaging system the printing of non-heat seal side of first tunic;

Fig. 3 has shown the lamination between the non-heat seal side of the non-heat seal back side and the second layer of printing of resulting ground floor;

Fig. 4 has shown the detergent block of packing.

The specific embodiment

Fig. 1 has shown the double-deck heat seal PET film that is used for packaging system of the present invention.Said bilayer (L1, L2) have respectively the heat seal side (HS1, HS2) and the back side, the back side be non-heat seal side (NHS1, NHS2).

Fig. 2 shown packaging system the printing of non-heat seal side of first tunic.Can see that from Fig. 1 and Fig. 2 printing is to carry out at the non-heat seal back side (NHS1) of ground floor.

Fig. 3 has shown the lamination between the non-heat seal side of the non-heat seal back side and the second layer of printing of resulting ground floor.The ground floor and the second layer have constituted rhythmo structure of the present invention.

Fig. 4 has shown the detergent block of packing.Detergent block is packaged in the double-deck semi-translucent rhythmo structure of a slice.Can be clear that from Fig. 4 the detergent block wrapper is dressed up, intermediate seal is lap seal LS (inner seal of lamination is to the outside), and an end seal ES part is between the outside and the outside of lamination, and a part is carried out between the inboard and the outside.

Claims

1. the packaging system of the cleaning product of a moulding, it comprises:

(a) a PET film has the heat seal side and the non-heat seal back side;

(b) the 2nd PET film also has the heat seal side and the non-heat seal back side;

The said non-heat seal back side of the said first and second PET films is fit to be laminated to together; Form transparent stepped construction; Make that therefore all parts of the whole packaging system of formation all are the combinations of double-layer PET film; Cleaning product is packaged in the said stepped construction, and the core of said stepped construction has formed lap seal, and the inboard and the outside of said stepped construction is sealed together; End seal forms between the outside of said stepped construction and inboard, and said stepped construction is the double-layer PET film combination that said heat seal side is positioned at the said stepped construction outside.

2. the packaging system of cleaning product according to claim 1 is characterized in that, the non-heat seal of at least one of said stepped construction has printed matter on the back side.

3. the packaging system of cleaning product according to claim 2 is characterized in that, has printed matter on the non-heat seal back side of first film of said stepped construction.

4. the packaging system of cleaning product according to claim 3 is characterized in that, the zone with said printed matter comprises the clear area, observes product so that see through packing.

5. according to the packaging system of each described cleaning product in the claim of front, it is characterized in that said cleaning product is rectangular shape basically, the bight be 90 the degree or near 90 the degree, fillet is a little perhaps arranged.

6. according to the packaging system of each described cleaning product in the claim 1 to 4, it is characterized in that, all sides of the centre portion of said cleaning product be the plane or comprise recess, but do not surpass the bossing on plane.

7. according to the packaging system of each described cleaning product in the claim 1 to 4; It is characterized in that; Said system comprises the wrapper assembling system, and wherein, central seal is a lap seal; An end seal part is between the outside and the outside of stepped construction, and a part is carried out between the inboard and the outside.