CN1344210A - Process for producing water soluble package - Google Patents
Process for producing water soluble package Download PDFInfo
- Publication number
- CN1344210A CN1344210A CN00805103.8A CN00805103A CN1344210A CN 1344210 A CN1344210 A CN 1344210A CN 00805103 A CN00805103 A CN 00805103A CN 1344210 A CN1344210 A CN 1344210A
- Authority
- CN
- China
- Prior art keywords
- film
- die cavity
- elastic deformation
- technology
- deformation material
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Packages (AREA)
- Wrappers (AREA)
- Paper (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Detergent Compositions (AREA)
Abstract
A process for producing a thermoformed package comprises the steps of placing a first sheet of film over a forming die having at least one cavity; heating the film to mould the film into the at least one cavity thereby forming at least one recess in the film, placing a composition in the at least one formed recess and sealing a second sheet of film across the at least one formed recess to produce at least one closed package. Each cavity includes a curved edge at least a portion of which comprises a resiliently deformable material.
Description
Technical field
The present invention relates to a kind of production technology of thermoforming packaging bag.The technology of this form may further comprise the steps: but first formed film is placed on the shaping dies with die cavity, thereby mold film forms a recess on film in mold cavity, constituent is packed in the formed recess, and second film be enclosed on the recess, formed a fully enclosed packaging bag.The invention particularly relates to the production technology of the water soluble package bag that washer solvent is housed.
Background technology
The washer solvent that is used for laundry machine has had various ways.The topmost form of laundry detergent compositions may be a laundry soap powder.Use the problem of the washer solvent of these forms to be that washer solvent needs to be thrown in the laundry machine, make washer solvent in water, dissolve quick and completely, and the contact of discord clothing generation solid form.Many dispensing devices that can solve described problem have been proposed at this point.Just proposed a kind of like this equipment in the European patent No. 0343070 and No. 0343069, it has used a flexible fiber cover, washing granule in the laundry machine can be flocked together.Fibre sleeving is permeable, so water can enter in the cover, washer solvent is seen through fibre wall with the form of the aqueous system take to outside the fibre sleeving.A kind of unit dose detergent that washs powder compressed tablet form has been proposed recently.The problem that this washing sheet faced is that this washing sheet need be enough to withstand and stores and transportation and not breaking, and needs again to decompose rapidly in the water of laundry machine and dissolve.Other problem is need prevent to wash sheet " bonding " between the cylinder of drain gutter and conventional washer.A kind of washing sheet that can address these problems has been proposed again recently.This washing sheet has special chemical decomposition matter, and the washing sheet is decomposed rapidly in the water environment of laundry machine, and provides loose small package bag to wash the sheet dissolving and prevent " bonding " with promotion.Yet because many existing washing sheets contain bleaching agent and other excitant, the problem of therefore handling this washing sheet still exists.
The washer solvent of water-soluble film packing has proposed a period of time.Great majority relate in this respect document description all is the water-soluble film big envelope that adopts shaping-charging-sealing (VFFS) method of vertically carrying out to form.Adopt the problem of the big envelope of VFFS method production to be that because the restriction of this technology, resulting big envelope seals overlapping place around the corner and has the rapid wear point.This has just caused big envelope to be subjected to impacting easy breakage in transit.European patent attempts to solve the problem of the big envelope that the VFFS method produces for No. 0608910, has proposed the thermoforming water soluble package bag that insecticide is housed of above-mentioned form, its packaging bag seal itself without any angled point of crossing.Though the part terms of settlement that specification sheets provides cracky to seal problem, the thermoforming of water-soluble film still cause also having many other cracky points in the packaging bag that forms.And the packing of this packaging bag and transportation make the packaging bag of formation bear sizable impulsive force.
An object of the present invention is to solve at least some the problems referred to above.
Summary of the invention
Production technology according to the thermoforming packaging bag that the invention provides a kind of above-mentioned form.This technology is characterised in that a bent limit is arranged on the described die cavity of shaping dies or each die cavity, and having a part on the bent limit at least is to make by compare softer more yielding material with the die cavity material.It is desirable to have at least a part of bent limit to make by the elastic deformation material.In general, the main portion on bent limit, preferably all parts are to be made by the elastic deformation material.In one embodiment of the invention, bent limit comprises the ring liner that an elastic deformation material makes, and described liner is installed in described die cavity or each die cavity circular groove on every side.In the case, the size of liner should make that when liner was installed in the groove, the surface that liner is exposed was concordant with mold cavity surface.
In another aspect of this invention, described die cavity or each die cavity are all surrounded by an outstanding flange, at least a portion wherein, and more satisfactory is most of or whole flanges is made by the elastic deformation material.In this case, bent limit and flange are preferably whole forms.Therefore, an independent liner preferably includes bent limit and flange.In one embodiment of the invention, the ratio of flange width and die cavity minimum diameter between 1: 50 and 1: 10, preferably 1: 12.
Described elastic deformation material is silaatic preferably, yet other suitable materials with identical performance also can adopt.
In the thermoforming step of technology of the present invention, film is heated the plate heating.Heating plate can be flat, but preferably has a sunk part that can cover at least one die cavity.Comprise the operation that film closely is attached on or each sunk part at described heating steps.The heating plate that use has sunk part can guarantee film thermally equivalent when heating, makes to have less cracky point in packaging bag.
In one embodiment of the invention, vacuum be can between sunk part and film, apply and film and sunk part closed contact made.On sunk part, should comprise some holes so that produce vacuum for this reason.Perhaps, heating plate can be made by porous materials.When applying vacuum by this way, vacuum is more satisfactory to be to comprise that one is not more than the pressure of 1 crust, but preferably less than 0.6 crust.In another embodiment of the present invention, blow air to film and force the film closed contact to sunk part.Usually the pressure that is blown into air is less than 5 crust, preferably less than 3 crust.The temperature of heating plate is preferably in 100 to 120 degrees centigrade the scope, and more satisfactory is about 110 degrees centigrade.Though depend on the temperature of employed film type and heating plate the contact time of film and heating plate to a great extent, the contact time of film and heating plate should be between 0.1 to 5 second, and more satisfactory is between 0.5 to 1 second, preferably about 700 milliseconds.
In one embodiment of the invention, film is a water-soluble film.Comparatively ideal is the constituent that packaging bag contains liquid state, gel state or other flowable state.Best, described liquid object comprises washer solvent, or is used for the activating agent of any other type of laundry machine or dish-washing machine.In another embodiment of the present invention, packaging bag contains the personal care articles of shower cream or other any kinds.
Description of drawings
With reference to the accompanying drawings with hereinafter with the embodiment of illustration formal description, can more be expressly understood the present invention.
Fig. 1 is the cross-sectional schematic that is used for the shaping dies and the heating plate of technology of the present invention;
Fig. 2 is the concrete cutaway view of sunk part shown in Figure 1;
Fig. 3 is the concrete cutaway view according to the limit of shaping die cavity of the present invention.
The specific embodiment
Heat forming technology is introduced by the embodiment that produces a plurality of packaging bags of the present invention from the thin slice of water-soluble material.Described water-soluble material is a polyvinyl alcohol, is provided with reference number CC8534 by Christ Craft.In the case, utilize the shaping dies with a plurality of die cavities to form recess in diaphragm, described cavity dimension the size common and packaging bag that quilt is produced is consistent.In addition, use the film in next molded all die cavities of an independent heating plate, and be provided with an independent hush panel with the same manner.
First polyvinyl alcohol film is directed in the shaping dies, makes film be placed on a plurality of die cavities of mould, concrete mode is described in detail below.In order to strengthen packaging bag intensity to greatest extent, film should be transported in the shaping dies with the crape folding that is freely formed and the form of suffered pulling force minimum.
At shaping stage, with reference to Fig. 1 and 2, film is heated to 110 degrees centigrade and keep about 700 milliseconds.The heating plate 1 that is superimposed upon on the shaping dies 2 is used for heating film, and described heating plate comprises the sunk part 3 (only having shown among the figure) of a plurality of die cavities 4 corresponding to shaping dies 2.The normally circle of each sunk part, its diameter is about 50 millimeters, and the degree of depth is about 5 millimeters.The same fillet that fallen of the limit 5 of sunk part 3 and matrix 6, the radius of described matrix 6 is about 50 millimeters, and the radius on described limit 5 is about 30 millimeters.Preheating the stage, forming vacuum, to guarantee closed contact between film and the heating plate 1 by heating plate.This closed contact is heated (degree of vacuum depends on the type of thermoforming condition and used film, yet finds less than the vacuum of 0.6 crust proper in this article) with can guaranteeing the film uniformity.Uneven heating will cause being shaped and have the cracky point in the packaging bag.Select or select in addition as the another kind of vacuum, can blow air to film and make film closed contact heating plate.The pressure of the air that is blown into should be less than 3 crust in this case.
Therefore, the thermoforming film is molded in die cavity to have formed a plurality of recesses, in case form, described recess will keep its thermoforming location because of the vacuum that produces by the die cavity wall.Vacuum remains to till the packaging bag good seal at least.In case recess forms and keep its position by vacuum, constituent is that liquid detergent is just packed in each recess here.Second polyvinyl alcohol film sheet is added on the first film sheet and covers the recess of having filled washer solvent then, and uses heating plate with its heat-sealing mouthful.In the case, flat heat-sealing oralia is operated under the temperature about 140 to 160 degrees centigrade, with contact time of film be 1 to 2 second, the power that applies is 8 to 30 kilograms/sq cm, preferably 10 to 20 kilograms/sq cm.
More particularly, with reference to figure 3, each die cavity 4 all is a domed shape usually, and it has bent limit 10, and described bent limit has radius of curvature.The flange 11 that one projection is arranged around each die cavity is used for guaranteeing that film is sealed together and form continuous sealing along flange.In this embodiment, the liner made by elastic deformation material's silaatic of the flange 11 of bevel edge 10 and projection constitutes.This makes that suffered power reduces on the inner edge of sealing flange, has avoided the heat/pressure damage of film.
In case sealing is just separated formed packaging bag with cutter sweep from diaphragm.Can cancel vacuum on the mould in this stage, and established packaging bag is ejected from shaping dies.Adopt this method, packaging bag can form in shaping dies, feeds and seal.In addition, packaging bag also can be cut in shaping dies.
In the shaping of this technology, charging with in the sealing stage, it is about 50% that the relative humidity of atmosphere should control to, and this can make film keep heat seal characteristics.When handling thinner film, just must reduce relative humidity, have lower soffening to guarantee film, can have more rigidity like this, make its easier processing.The actual specific relative humidity of required atmosphere becomes according to the type of ambient temperature and used film, yet for the temperature in about 20 degrees centigrade, should be in 30% to 50% scope according to the thickness and the elasticity relative humidity of used film.
The present invention is not limited to embodiment as described herein.Under the situation of technology of the present invention, can on structure, detail and processing step, change it.
Claims (7)
1. the production technology of a thermoforming packaging bag may further comprise the steps:
First film is placed on the shaping dies with at least one die cavity;
Heat described film;
Molded described film at least one die cavity makes and forms at least one recess in the described film;
The constituent of at least one formed recess, packing into; With,
Be placed at least one formed recess second film and sealing, produce at least one fully enclosed packaging bag;
This technology is characterized in that the described die cavity of shaping dies or each die cavity all have a bent limit, and it is to be made by the elastic deformation material that described bent limit has a part at least.
2. according to the described technology of claim 1, it is characterized in that the main portion on described bent limit is to be made by the elastic deformation material.
3. according to claim 1 or 2 described technologies, it is characterized in that described bent limit comprises the ring liner that an elastic deformation material makes, described ring liner is installed in described die cavity or each die cavity circular groove on every side.
4. any one described technology in requiring according to aforesaid right is characterized in that described elastic deformation material comprises silaatic.
5. any one described technology in requiring according to aforesaid right is characterized in that be provided with the flange of a projection around described die cavity or each die cavity, it is to be made by the elastic deformation material that described flange has a part at least.
6. according to the described technology of claim 5, it is characterized in that the main portion of described flange is to be made by the elastic deformation material.
7. according to claim 5 or 6 described technologies, it is characterized in that, the ratio of the width of flange and die cavity minimum diameter between 1: 50 and 1: 10, preferably 1: 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9906179.8 | 1999-03-17 | ||
| GBGB9906179.8A GB9906179D0 (en) | 1999-03-17 | 1999-03-17 | A process for producing a water soluble package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1344210A true CN1344210A (en) | 2002-04-10 |
Family
ID=10849833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00805103.8A Pending CN1344210A (en) | 1999-03-17 | 2000-02-29 | Process for producing water soluble package |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1161368B1 (en) |
| CN (1) | CN1344210A (en) |
| AT (1) | ATE226905T1 (en) |
| AU (1) | AU2916100A (en) |
| BR (1) | BR0009048A (en) |
| CA (1) | CA2360805A1 (en) |
| CZ (1) | CZ20013334A3 (en) |
| DE (1) | DE60000684T2 (en) |
| ES (1) | ES2184696T3 (en) |
| GB (1) | GB9906179D0 (en) |
| RO (1) | RO118861B1 (en) |
| TR (1) | TR200102518T2 (en) |
| WO (1) | WO2000055044A1 (en) |
| ZA (1) | ZA200105054B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102712373A (en) * | 2009-11-23 | 2012-10-03 | 瑞迪奥机械股份有限公司 | Improvements to continuous motion rotating thermoforming of soluble pouches |
| CN102793607A (en) * | 2012-07-23 | 2012-11-28 | 枝江奥美医疗用品有限公司 | Manufacturing method of self-adhesive elastic bandage and self-adhesive elastic bandage |
| CN105035389A (en) * | 2015-08-18 | 2015-11-11 | 瑞安市贝德机械科技有限公司 | Water-soluble film packaging machine |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001256248A1 (en) | 2000-04-14 | 2001-10-30 | Unilever Plc | Water soluble package and liquid contents thereof |
| AU7050301A (en) | 2000-05-15 | 2001-11-26 | James Dawson Cropper | Liquid detergent composition |
| GB2374830A (en) * | 2001-04-20 | 2002-10-30 | Reckitt Benckiser | Improvements in or relating to compositions/components including a thermoforming step |
| DE10215601B4 (en) * | 2002-04-10 | 2005-08-04 | Henkel Kgaa | Water-soluble container and process for its preparation and use |
| DE10237200A1 (en) | 2002-08-14 | 2004-03-04 | Henkel Kgaa | Portioned detergent or cleaning agent composition |
| DE10244802B4 (en) | 2002-09-26 | 2011-12-22 | Henkel Ag & Co. Kgaa | Plump detergent tablets |
| GB0222964D0 (en) | 2002-10-03 | 2002-11-13 | Unilever Plc | Polymeric film for water soluble package |
| DE10305799B4 (en) * | 2003-02-12 | 2012-12-27 | Henkel Ag & Co. Kgaa | Process for the preparation of a blow-molded detergent body |
| ES2539732B1 (en) | 2013-06-28 | 2016-02-05 | Kao Corporation, S.A. | Liquid detergent composition |
| WO2015000969A2 (en) | 2013-07-03 | 2015-01-08 | Basf Se | Use of a gel-like polymer composition which can be obtained by polymerizing an acid group-containing monomer in the presence of a polyether compound in formulations for automatic dishwashing |
| CN108779212A (en) | 2016-03-16 | 2018-11-09 | 巴斯夫欧洲公司 | Washing and cleaning action polymer film, Its Preparation Method And Use |
| US10703515B2 (en) | 2016-08-08 | 2020-07-07 | Cloud Packaging Solutions Llc | Pouch forming mold configuration, method and pouch |
| ES2921884T3 (en) | 2016-11-15 | 2022-09-01 | Mespack Cloud Llc | Machine for cutting bags with a shaped perimeter edge, procedure and bag |
| EP3555153B1 (en) | 2016-12-16 | 2020-12-09 | Basf Se | Multi-layer films, method for its manufacture and its use |
| BR112019011724A2 (en) | 2016-12-16 | 2019-10-22 | Basf Se | multilayer film, process for producing a multilayer film, use of a multilayer film, sheath or coating, and washing or cleaning composition. |
| WO2019238730A1 (en) | 2018-06-14 | 2019-12-19 | Basf Se | Process for producing water-soluble containers for dosing detergent |
| WO2020224962A1 (en) | 2019-05-03 | 2020-11-12 | Basf Se | Water-soluble films with three-dimensional topography |
| WO2022017974A1 (en) | 2020-07-24 | 2022-01-27 | Basf Se | Casein based multilayer film with improved barrier properties |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920527B2 (en) * | 1979-10-17 | 1984-05-14 | 株式会社フジパツクシステム | packaging equipment |
| MY131091A (en) | 1991-04-05 | 2007-07-31 | Rhone Poulenc Agriculture | Package for agrochemicals. |
| DE9303456U1 (en) * | 1993-03-09 | 1993-04-29 | Mosheer, Hanspeter, Bürglen | Device for producing, loading and closing blister packs |
-
1999
- 1999-03-17 GB GBGB9906179.8A patent/GB9906179D0/en not_active Ceased
-
2000
- 2000-02-29 EP EP00907646A patent/EP1161368B1/en not_active Expired - Lifetime
- 2000-02-29 CA CA002360805A patent/CA2360805A1/en not_active Abandoned
- 2000-02-29 DE DE60000684T patent/DE60000684T2/en not_active Expired - Lifetime
- 2000-02-29 ES ES00907646T patent/ES2184696T3/en not_active Expired - Lifetime
- 2000-02-29 TR TR2001/02518T patent/TR200102518T2/en unknown
- 2000-02-29 WO PCT/EP2000/001647 patent/WO2000055044A1/en not_active Application Discontinuation
- 2000-02-29 BR BR0009048-4A patent/BR0009048A/en not_active IP Right Cessation
- 2000-02-29 CZ CZ20013334A patent/CZ20013334A3/en unknown
- 2000-02-29 AU AU29161/00A patent/AU2916100A/en not_active Abandoned
- 2000-02-29 RO ROA200101005A patent/RO118861B1/en unknown
- 2000-02-29 CN CN00805103.8A patent/CN1344210A/en active Pending
- 2000-02-29 AT AT00907646T patent/ATE226905T1/en not_active IP Right Cessation
-
2001
- 2001-06-20 ZA ZA200105054A patent/ZA200105054B/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102712373A (en) * | 2009-11-23 | 2012-10-03 | 瑞迪奥机械股份有限公司 | Improvements to continuous motion rotating thermoforming of soluble pouches |
| CN102712373B (en) * | 2009-11-23 | 2015-05-20 | 瑞迪奥机械股份有限公司 | Improvements to continuous motion rotating thermoforming of soluble pouches |
| CN102793607A (en) * | 2012-07-23 | 2012-11-28 | 枝江奥美医疗用品有限公司 | Manufacturing method of self-adhesive elastic bandage and self-adhesive elastic bandage |
| CN102793607B (en) * | 2012-07-23 | 2014-08-20 | 枝江奥美医疗用品有限公司 | Manufacturing method of self-adhesive elastic bandage and self-adhesive elastic bandage |
| CN105035389A (en) * | 2015-08-18 | 2015-11-11 | 瑞安市贝德机械科技有限公司 | Water-soluble film packaging machine |
| CN105035389B (en) * | 2015-08-18 | 2017-03-08 | 瑞安市贝德机械科技有限公司 | Water-soluble film packaging machine |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200105054B (en) | 2002-06-20 |
| CA2360805A1 (en) | 2000-09-21 |
| EP1161368A1 (en) | 2001-12-12 |
| RO118861B1 (en) | 2003-12-30 |
| BR0009048A (en) | 2002-01-15 |
| AU2916100A (en) | 2000-10-04 |
| GB9906179D0 (en) | 1999-05-12 |
| ATE226905T1 (en) | 2002-11-15 |
| WO2000055044A1 (en) | 2000-09-21 |
| TR200102518T2 (en) | 2002-01-21 |
| DE60000684T2 (en) | 2003-06-12 |
| EP1161368B1 (en) | 2002-10-30 |
| CZ20013334A3 (en) | 2002-03-13 |
| ES2184696T3 (en) | 2003-04-16 |
| DE60000684D1 (en) | 2002-12-05 |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |