ZA200500240B - Packaging system for detergent bars - Google Patents
Packaging system for detergent bars Download PDFInfo
- Publication number
- ZA200500240B ZA200500240B ZA200500240A ZA200500240A ZA200500240B ZA 200500240 B ZA200500240 B ZA 200500240B ZA 200500240 A ZA200500240 A ZA 200500240A ZA 200500240 A ZA200500240 A ZA 200500240A ZA 200500240 B ZA200500240 B ZA 200500240B
- Authority
- ZA
- South Africa
- Prior art keywords
- packaging system
- heat sealable
- detergent
- detergent products
- sides
- Prior art date
Links
- 239000003599 detergent Substances 0.000 title claims description 40
- 238000004806 packaging method and process Methods 0.000 title claims description 40
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 15
- 229920002799 BoPET Polymers 0.000 claims description 9
- 210000001015 abdomen Anatomy 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 17
- 239000000344 soap Substances 0.000 description 11
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 8
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 8
- 239000000123 paper Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004922 lacquer Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000012785 packaging film Substances 0.000 description 3
- 229920006280 packaging film Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002355 dual-layer Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical compound O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 description 1
- 241001230030 Nossa Species 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 241000482268 Zea mays subsp. mays Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000012437 perfumed product Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Packages (AREA)
Description
Co €..00035/02 48 ; } C2117 cpl (V)
The present invention relates to packaging of detergent ba rs and the like and in particular to a packaging system comprising transparent wrapper. Apart from enabling incorporation of print ed matters, the transparent wrapper would add to the aesthetic outlook of the packaged detergent, is adapted to favour maintaining desired packaging characteristics for effective storage and transit of the detergent bar while maintaining its quality and characteristics under diverse transit and storage conditions.
It is well known in the art to provide packaging papers such as surface printed Chromo, Maplitho or Poster Paper with extrusion coating with polyethylene or coating with hot mel. t lacquer. Surface printed chromo, maplitho or poster paper laminated with PET or BOPP on the printed surface and coated with hot melt lacquer on the other side of the paper is also known. Combinations of reverse printed PET or BOPP laminated to Chromo, Maplitho or Poster Paper and coated with hot meld lacquer on the other side or said reverse printed PET/BOPP lamina ted to metallized PET or metallized N
BOPP with further lamin ation to Chromo, Maplitho or Poster
Paper and coated with h ot meld lacquer on the other side or said reverse printed PE T/BOPP laminated to BOPP, PET lamination to polyethylene are also well known.
Furthermore, carton pac king such as surface printed paper
. C2117 cpl (CV) Pe 20 Nes LG base d carton pack with or without laminat ion with BOPP/PET on t he printed surface or the reverse primted PET or BOPP lami nated with paperboard carton pack is also well known.
It is also known to use packaging films swich as multi-layer heat sealable packaging films for packagimg of products.
Biax jally oriented polyethylene terephtalate commonly refe rred to as “oriented polyester” “OPET”” is a well-known packaging film.
US 4,765,999 discloses multiple layer non—oriented heat sealable films having a base substrate lawyer of poly (ethylene terephtalate) (polyester) ox polyester co- polyruner and at least one heat sealable suxface layer of a co-polyester. Such films are adapted to »eplace heat sealable OPET films for extremely demandirg applications such as microwave popcorn bags. Importantly, it is suggested that the relatively amorphous nature of such non- oriented films provide for additional advantages compared to the xelatively crystalline nature of the OPET films.
EP 17121305 Bl discloses bar of soap having wrapped laterally of the bar around at least a longitudinal extent of the bar, a stiffening member comprising a stiff sheet material having at least respective outer surfaces thereoff each provided by a plastic material wherein at least a partt of the stiffening material is transparent. This packaging wras proposed based on a finding that if a bar or soap has wrapped around at least a longitudinal extent thereof, a sti ffing member at least respective outer surface of which are each provided by
~ 7 C2117 cpl (V) Eo. . Naw: 09 [LG - 3 = a plastic material then mould growth on and within it can be entirely avoided.
EP 1183193 Bl discloses yet another =ocap bar packaged in a transparent package, said soap bar having a generally rectangular shape with two sides of & minor dimension and two sides of a major dimension, a fimxst inner film substantially enveloping said soap bar and open on the two sides of a minor dimension, a second substantially transparent outer film overlying said first film and fully enveloping said soap bar characterized in that said inner film is substantially transparent and has a light transmission of more than 85% and a clarity of more than 90%, the thickness ratio of said first film to said second film being 2:1 to 5:1, the stiffness of said first film to said second film being 7:1 to 35:1 arad said soap bar being a translucent soap bar. The first film is selectively provided as a stiffener to provide structural protection for the soap while the second film fully envelopess the soap bar and the first film.
It would be apparent from the above t.-hat while several varieties of packaging materials especially useful for packaging of detergent bars are avail able and made known to the art the varieties presently avail able are either found to involve complexities in manufactur e, are cost-extensive, or fail to provide the desired mechan ical strength and stiffness to facilitate the effective transport of packaged product. Moreover, in case of require d transparent wrappers for detergents such problems turn mor e complex. Also, it is found that most of such known packagimg also have problems
} C2117 cpl (V) Bo, 20 Nossa ; ; ~- 4 - or limitatioms in effectively protecting the odour of the product espe«cially required to be safeguarded im case of perfumed products such as detergent bars and the like. In addition, it is also found that for some of the above- discussed packaging materials there is sometimes the additional pxoblem of distortion/shrinkage of seals in case of high temperature heat sealing of the packaged detergents.
Objects and summary of the invention
It is thus am object of the present invention to provide a packaging system for detergent bars and the like in the form of transparent detergent wrappers which have superior mechanical strength and stiffness and thus have better transport performance and required storage characteristics.
It is another object of the present invention to provide a packaging system having superior stiffness, better machinabilityw and flexibility for better shape formation.
It is yet another object of the present invention to provide a packaging system for detergent bars and the li ke which, apart from serving as a good protective cover for the product, also enables maintaining the desired aesthetic outlook of the packaged product in addition to serving as an effective odour barrier for better retention of perfume in the bar.
Yet a further object of the present invention is to provide a packaging s ystem for detergent bars and the 1i ke which avoids the limitations of several conventional p ackaging
C2117 cpl (V) materials as regards distortion, shrinkage of seals at high sealing temperature.
Yet another object of the present invention is to provide a durable transparent packaging system for detergent bars and the like which allows a printed and/or transparent window configuration.
Another object of the present inwention is to provide a process for packaging of detergemt bars and the like which enables use of a wider heat seal temperature window while obtaining quality packaging in a cost effective way and with convenient machinability. :
Thus, the invention provides a packaging system for detergent bars comprising two PET films, each having a heat sealable and a non-heat sealable side. The non-heat sealable sides are laminated together to provide a structure of : laminated PET film which is used for packaging the detergent bar such that the overlap can be heat-sealed so as to provide a wrapping around the bar.
Detailed description of the Inveration
Thus according to one aspect of tthe present invention there is provided a packaging system for shaped detergent products comprising: - a first PET film having a heat sealable side and a non- ’ heat sealable reverse thereof, - a second PET film also having & heat sealable side and a non-heat sealable reverse thereof,
Co C2117 cpl (V) said non-heat sealable sides of the first and second PET
Xilms adapted to be laminated together to provide a transparent laminated structure whexein the detergent bar is packaged such that the central portions of the laminated
Structure define a lap seal with the inner side and the outer side of the laminate structure sealed together and the end seals are provided between the outer and inner sides of the laminate structure.
The shaped detergent products referxed to herein are well known in the art and particularly comprise detergent bars and tablets such as conventionally wsed for dish wash and laundry wash purposes and for persomal wash. The latter are conventionally known as soap bars, although they may be made partly or entirely of other detergent surfactants than fatty acid soap. The phrase “detergent bax” is also used hereinafter to denote all such shaped detergent products.
In accordance with a preferred aspect of the present invention at least one of the non-heat sealable sides of the laminate structure has printed matter thereon. This printed matter is thus visible through the transparent films.
In accordance with a further preferxed aspect of the present invention said non-heat sealable side of the first film of the laminate structure has printed matter thereon.
In the above disclosed packaging system of the invention the dual layer packaging of heat sealable PET with the non-heat sealable portions of the respective layers laminated enable providing of well protected printed matter on the packaging ol C2117 cpl (V) - 7 = to add to the aesthetic value of the product and on the other hand provide for a more rigid amd superior mechanical strength and stiffness to the transpament package.
In accordance with further aspect of tthe present invention there is provided for a packaging system for detergent bars and the like comprising a transparent laminate structure comprising a first layer of heat sealable PET reverse printed on the non-heat sealable portion thereof, a second 1 0 layer of heat sealable PET having its non-heat sealable reverse laminated with respect to the reverse printed non- heat sealable portion of the first layer, wherein the printing region includes an unprinted area or window to facilitate viewing of the product through the package.
The above disclosed laminated structure according to the invention Thus makes it possible to ora one hand maintain the desired mechanical strength and stiffraess in transparent detergent wrappers and on the other hand provide for variety of printed region which on its own and/or in combination with the shape and configuration of tlhe product to be packaged favours a better aesthetic outlook to the packaged product.
In accordance with a preferred aspect of the invention the detergent bars to be packaged of a sul»stantially regular rectangular shape, the middle portion of all sides being flat or comprising recessed areas, but. preferably no raised portion beyond the flat area and the corners to be either at 90° or close to 90° or slightly rounded.
oC C2117 cpl (V)
In the preferred embodiment the transparent laminate
S tructure constituting the packaging system of the invention is thus comprised of the heat sealable PET reverse printed and laminated with the help of adhe sive to another layer to h eat sealable PET. In particular, t he printing on the first h eat sealable layer on its reverse is laminated to the non- h eat sealable side of the second la yer. As stated above, the printing design can have window s (unprinted area) so that the intended part of the deter gent is visible to the consumers even in a packed bar. The bar would be envelope wxapped such that the belly seal is a lap seal (inner side of the laminate to be sealed with the outer side) and the emnd seals are preferably partly between the outer and outer and partly between the inner and outer sides of the laminate.
Importantly, the above disclosed packaging system in the form of transparent detergent wrappers provides a packaging structure for shaped detergent products and the like having superior mechanical strength, bettex transport performance as well as stiffness. Importantly, the combination of the two layers of PET film with the heat--sealable sides at the outsides of the structure enables better processability and machinability and better shape formation. In particular, the combination enables high temperature sealing of the package free of distortion or shrinkage of seals and therefore provide for wider flexibility in use and application of such packaging systems.
Moreover, the dual layer packaging proposed apart from giving the desired stiffness and mechanical support to the
0 C2117 cpl (V) - 9 = structure also favours maintaining the desimed print in the packaging free of distortions or erase during transport and storage. Moreover, the dual packaging facilitates maintaining a desired barrier for any loss of perfume from the packaged products.
The PET films used in the packaging system can be made heat- sealable by any process known in the art malking heat-
Sealable films. A well known process comprises addition of a <o-polymer in one of the skin layers during the rnanufacturing of the film to constitute the heat sealable side of the packaging.
Although any wrapping process for the detergent product may bbe used, a preferred process comprises envel ope wrapping in which the belly seal is a lap seal and the end seals are between outer to outer and inner to outer si.des of the
Jdaminate.
The details of invention are further elucidated in the ¥igures, which show examples of film and laminate and its use in wrapping.
E'igure 1 shows the two layers of heat sealalwle PET film used in the packaging system of the invention. Bo=th said layers ¢ll, L2) each have a heat sealable side (HS1 , HS2) and a reverse side, which is a non-heat sealable s ides (NHS]1,
NHS2) .
F'igure 2 illustrates the provision of a prin ted portion on the non-heat sealable side of the first film layer of the
+ C2117 cpl (V) packaging system. As would be apparent from Figures 1 and 2, the printing is proposed on the non-heat sealable (NHS1) reverse of the first layer
Figure 3 shows the lamination obtained there between the first layer, in particular its printed non-heat sealable reverse with the non-heat sealable side of the second layer to constitute the laminated stxucture according to the invention.
Figure 4 illustrates the packaged detergent, which is packaged in a sheet of the duall layer transparent laminate structure. As is evident from Figures 4 the detergent bar is preferably envelope wrapped such that the belly seal is a lap seal LS (inner side of the laminate to be sealed with the outer side) and end seals ES are partly between outer to outer and partly between inner to outer sides of the laminate.
Claims (8)
1. A packaging system for shaped detergent products comprising: (a) a £irst PET film having a heat sealable side arid a nomn-heat sealable reverse thereof, (b) a second PET film also having a heat sealable side and a non-heat sealable reverse thereof, said nomn-heat sealable sides of the first and second PET filrns adapted to be laminated together to provide a transpaxent laminated structure wherein the detergemt is packaged such that the central portions of the laminated structure define a lap seal with the innexx side and the outer side of the laminate structure sealed together and the end seals are provided between the outer and inner sides of the laminate structure .
2. A packaging system for detergent products as claime-d in claim 1 wherein at least one of the non-heat sealab le sides of the laminate structure has printed matter thereon .
3. A packaging system for detergent products as claime d in claim 2 wherein the non-heat sealable side of the f irst film of the laminate structure has printed matter thereon .
4, A packaging system for detergent products as claime d in claim 3, wherein the printing region includes an unprint ed area to facilitate viewing of the product through the package.
. C2117 cpl (V)
E.. 2073/8249
5. A packaging system for detergent products as claimed ima any preceding claim wherein the detergent product has Aa substantially rectangular shape with the corners either at or close to 90° degrees or slightly rounded.
6. A packaging system for detergent products as claimed im any preceding claim wherein the detergent product has the middle portion of all sides to be either flat or comprising recessed areas, but no raised portion beyond the flat area.
7. ° A packaging system for detergent products as claimed im any preceding claim comprising an envelope wrapping system wherein the belly seal is a lap seal and the end seals are partly between the outer and outer and partly between inner and outer sides of the laminate.
8. A packaging system substantially as herein described and illustrated. DATED THIS 11™ DAY OF JANUARY 2005 SPOOR & FISHER APPLICANTS PATENT ATTORNEYS
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN48MU2004 | 2004-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200500240B true ZA200500240B (en) | 2006-10-25 |
Family
ID=34878798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200500240A ZA200500240B (en) | 2004-01-16 | 2005-01-11 | Packaging system for detergent bars |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1640781B (en) |
| BR (1) | BRPI0500071B1 (en) |
| ZA (1) | ZA200500240B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014053383A1 (en) | 2012-10-05 | 2014-04-10 | Unilever N.V. | Novel laminated film for packaging |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075629U (en) * | 1990-10-14 | 1991-04-24 | 朱振华 | Packing bag for lump detergent |
-
2005
- 2005-01-11 ZA ZA200500240A patent/ZA200500240B/en unknown
- 2005-01-12 BR BRPI0500071-8B1A patent/BRPI0500071B1/en not_active IP Right Cessation
- 2005-01-14 CN CN2005100059152A patent/CN1640781B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014053383A1 (en) | 2012-10-05 | 2014-04-10 | Unilever N.V. | Novel laminated film for packaging |
| US10046395B2 (en) | 2012-10-05 | 2018-08-14 | Conopco, Inc. | Laminated film for packaging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1640781B (en) | 2012-03-21 |
| CN1640781A (en) | 2005-07-20 |
| BRPI0500071B1 (en) | 2014-10-29 |
| BRPI0500071A (en) | 2005-09-27 |
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