CA2035196A1 - Recloseable package with product backing board - Google Patents
Recloseable package with product backing boardInfo
- Publication number
- CA2035196A1 CA2035196A1 CA002035196A CA2035196A CA2035196A1 CA 2035196 A1 CA2035196 A1 CA 2035196A1 CA 002035196 A CA002035196 A CA 002035196A CA 2035196 A CA2035196 A CA 2035196A CA 2035196 A1 CA2035196 A1 CA 2035196A1
- Authority
- CA
- Canada
- Prior art keywords
- product
- package
- board
- recloseable
- backing
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
Abstract
RECLOSEABLE PACKAGE WITH PRODUCT BACKING BOARD
ABSTRACT OF THE DISCLOSURE
A recloseable package wherein the enclosed product is supported on a rigid backing board and the package includes a recloseable seal strip mounted on an access edge of the backing board. One sheet of packaging film overlies the backing board and the packaged product.
The film sheet is sealed hermetically around the periphery of the backing board and further sealed to the recloseable seal strip exterior of the hermetic seal.
ABSTRACT OF THE DISCLOSURE
A recloseable package wherein the enclosed product is supported on a rigid backing board and the package includes a recloseable seal strip mounted on an access edge of the backing board. One sheet of packaging film overlies the backing board and the packaged product.
The film sheet is sealed hermetically around the periphery of the backing board and further sealed to the recloseable seal strip exterior of the hermetic seal.
Description
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R~CLOS~ABLE PA~AG8 ~IS9 PRO W CT BACXI~G BOAaD
Backqround and Summarv of the ~nvention The present in~entio~ relates generally to reclo6eable packagee for hermetically ~ealing co~su~able product~ supported on a backing board and contained on the b~cking board by an opposing sheet of pack~ge film, : :
and more particularly to recloseable package~ for food proaucts and the like in which the recloReable ~eal fa~tener elemente are attached to the baeking board an~
~he oppo~ing package film sheet.
Certain processed meats ana/or food pro~uct~
sold to consumers are sold in package~ in which the proce~sed meats or food product~ are mounted on a backing boara. The fre~hne~s of these food products ~uch ac bacon, ~liced luncheon meats, chee~e~ ana the like contained ~ithin the~e p~cka~e~ depends upon the eYtent to whicb the package i~ vacuum packe~ or ga~
flu hea and ~ub~eque~tly hermetically ~ealea. Often~
the purchaser doe~ not u~e the food products containec within ~uch p w k~ges at once, but rather use~ the~ ov~r an eYtended period of time. When the initial hermetic ~eal of the package has been breacbed during opening of the p~ck~ge, ~ portion or portions o~ the packagæ are often remove~. In such in~t~nces, the package cannot be effectively re~e~led in a manner to pre~erve the freshne~s of the food products ~torea within. The , ~ . . ~ .
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purchaser must often repnck the food products in ~
aifferent ~uitably reclo~eable container. Accordingly, a need exl~t~ for an improved food product p~ckage of the backing board type which has a reclo~eable Eeal.
S The improved packages of the present invention proviae significant advantages in that the her~e~ic ~eal eYtend~ arouna the entire periphery of the pro~uct interior of the reclo~eable ~e~l 80 that the package i8 liquid tight and suitably retains within the package, fluias of the proaucts containea therein, incluaing water, juices, oil~ ana the like, while the pac~age recloseable ~eal i~ aahered to the proauct bac~ing board fiO tbat the package can be opened ~nd clo~ed r~peatedly to remove portions of the package contents without de~troying the integrity of the package. A ~zipper~
seal consi~ting of interengaging component~ ~uch as rib and groove fastener elements i8 the preferre~
recloseable 6eal mean6.
The hermetic ~eal dispo~ed on one surface of the proàuct backing boara around the periphery of the proauct has an easy open or peel ~eal portion locate~
a~jacent the product and interior of the recloseable seal. The recloseable ~eal is opened with digital pull-apart forces which are al~o used to open the pe~l ~eal. The peripheral hermetic seal can maintain a vacuum, pre~eurized anq/or ga~-flu~hea environment within the p~ckage. The peel seal area of tbe her~etic ~eal will be formed by effecting a face-to-face ~eal between ~ plastic film and the product b~cking bo~rd around the periphery of the product with the strength of ~ `
the seal permitting separation without de~truction or tearing of the pl~tic film.
The reclo~eable eal of the p~ckage of thi~
invention i8 attacheG to an acceeq edqe of the product backinq board ~s well a8 an acce~s edge of the pl~tic film ~heet. one of the reclo~eable ~eal in~erengag~ng ,' , .:
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fa~tener elements i8 adhered directly to the b~cking bo~ra v~ile the other of the intereng~ging f~stener ele-ents i8 aahered directly to t~e p~ckage plas~ic film sheet. In thi~ regard, the two intereng~ging fastener elements are fir~ly anchored to both the backing board and the package film, which decreases the po6sibility tbat the packaging material may tear or separate when the hermetic seal i8 opened.
Accordingly, it i~ a general object vf the present invention to provide an i~pro~ed recloseable package for use with proaucts positioned on a b~cking board ~hich has a first reclo~eable ~eal di~po~ed along ~n ~cces~ edge o~ the b~cking board and ~ second hermetic peel seal peripherally aajacent to ~he product ana adjacent the reclo~eable fieal.
Another object of the present invention i~ to provide a recloseable p~ckage for food proaucts and the like having a recloseable eeal disposed near ~n opening of the package ana attached to the product backing board and a her~etic se21 interior o~ the reclo~eable seal, the hermetic ~eal having a peelable ~eal area adjacent to ana interior of the recloseab~e ~eal.
Yet another object of the pre~ent invention i~
to provide an improved product package ~aving a peel seal and a reclo~eable seal, wherein tbe reclo~eable seal elements are 2tt~chea to an inner proauct ~upporting bacon board ~na to the outer pla6tic packaging fil~ sheet.
These ~nd other object~ o~ the present invention will b~come ~ore readily apparent from a reading of the ~ollowing detailed description.
Brief DescriDtion of the Drawina~
Figure 1 i~ a per~pective view of a package incorpora~ing the principles of the pre~ent invention.
~or purpose~ o~ illustration only, the package i~ ~hown a~ cont~ining v~cuu~,packea luncheon meat~s . ~ .
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Figure 2 i8 a cro~-sectional view t~ken along line 2-2 of Figure l; ~n~
~ igure 3 i~ an eYploded perspective ~iew of the package of Figure 1.
s Detailed DescriPtion of the Invention Figure 1 illustrates a reclo~eable package 10 con~tructed in accordance with the principle~ of the pre~ent invention. The packa~e6 10 of the prefient invention are particularly ~uitable for se~ling a peri~hable food product, shown in Pigure6 1 and 2 a~
luncheon meat slices 12, between one ~heet or panel 14, of a fle~ible packaging fil~ material and a product backing board 18. The fil~ sheet 1~ whicb ~or~ one &idewall of ~he package 10 can be nade from a variety of materials including plastic film~, ~ulti-layered laminate~ o~ co-eYtrusion~, thermofor~able ~aterial~ ana the like. A preferred pla~tic film for assembly of the packages of ~he pre~ent invention i~ one which i~
impervious to air, oxyg~n and/or moisture.
When the pack~ge film sheet 14 is formea from a laminated son~truction, it i~ de~irable to use a thin, inner layer which is imperviou~ to air, oxygen or moi~ture in combination with an outer layer having ~u~ficient fle~ibili~y and desirable ~tructural characteri~tic~ 80 th~t the laminate cnn ~unction a8 a package ~idewall film. For purpoces of illu~tration ~n~
aiscu~ ion, each film ~heet will be shown a~ ~ single he~t-~eal~ble l~min~. In actual practice~ each fil~
sheet will likely be ~ lamin~te o~ two or more layers which will provide eufficient protection ~o ~he product (e.g., oYygen and moi~ture barrier~) and which can for~
a her~etic, a~d if desired, peel~ble ~e~l a~ thin inner sur~aces. As ig known in the art, la~inates compri ed o~ vinylidene chloride polymer plaQtic ilms, such as ~Saran~, polyvinyl chloride, or ethylene vinyl acetate .: - ~ ~ .. . . . .
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pla~tic film are suitable. When the fil~ ~heet l~ is of a laminated con~truction, it i~ preferable ~.o ha~e a layer of ethylene vinyl acetate on tbe surface of the film sheet which will cont~ct the product backing board 18 r ~igures 1 and 2 illu~trate a package lO in ~hich one film sheet 1~ encloses a plurality of luncheon neat slices 12 positioned on a generally rectangular, and ~ub~tantially rigid product tray or backing board 18, sometimefi referrea to a~ ~bacon~ boaras. Tbe backing board 18 is al~o preferably con~tructed from a material which i6 impervious to air, osygen ana/or :!~
~oisture. In tbis regard, ~ ~omewhat rigid thermoplastic ~heet i8 uced to provide a ~upport ~urface 20 for the luncheon meat 12 and to fierve as the other ~idewall of the packaqe 10. Backing board~ for~ea from polyvinyl chloride or Bnre~ have been founa to exhibit the preferred decirea rigidity ana film sealing capabilities. Cardboara may also be used as the product backing board provided that it has been previously renderea imper~iou~ to oYygen, air and/or mo6iture, such as by waY impregnation. The luncheon meat slices 12 or the like are de~irably positionea on the backing boar~
18 ~ithin a ~ean~ for retaining the luncbeon meat in a packaged product area 16, illustrated a~ a rai~ea portion or wall 15 of the backing board 18. Not only doe~ the rai~ed portion lS retain the luncbeon ~e~t 12 within the packagea product area 16, but al80 it confine~ any juice~, oil~, or fluid~ fro~ ~he luncheon meat within the product ~rea 16. The raised portion 15 can be formed integrally within the backing board 18 (mo~t easily accomplished when the backing board 18 ig made o~ 2 thermopla~tic ~aterial) or alternately, can be for~ec by attaching a separate member to the backing boara 18.
The film ~heet 1~ ana the backing board 18 are combinea by cont~cting each other around the luncheon - - - - - . - .. . . .
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~eat 12 to form an inside border are~ 22 ~itbin tbe raisea portion 15 ana a peripheral margin 42 e~tenaing arouna t~e periphery of the proauct a~ position~d on the backing boara 18. Wben a vacuum i8 appliea to the ~pace S between the film sheet 14 and luncheon meat ~2, the film sheet 14 is drawn inwaraly about the luncheon meat 12 or the like to conform to the contour thereof to pro~ide the package 10 with i~proved rigidity for witbst~nding rigorou~ handling during transport and retail display ana the like. When a laminatea film i5 u~ea wherein the surface of the film sheet 14 which contacts tbe backing board 18 i~ formea from a layer of ethylene vinyl acetate, the inherent adhe~i~e qualitie~ o~ the et~ylene vinyl acetate laminate form a fiecure, yet peelable, hermetic continuous edge seal 24 outside the board raisea portion 15, which maintain~ a ~ecure 8e~1 during handling ana ~torage that can be peeled back upon the application of digital forces appliea througb an outer recloseable ~eal 26 or the like.
As best sho~n in Figures 2 and 3, the package hac a first, outer reclo~eable seal 26 illu~tratea as a conventional interengaging faRtener as~embly 27 sucb as a rib ana groove fa~tener assembly. Although the interengaging fastener assembly 27 i~ illu~trated as one tbat is particularly secure for the illustratea type o~ package 10, namely having a length of a for~ed double rib element ~trip 28 and ~ ~imil~r length of a for~ed double groove ~trip 29, it will be noted that the interengaging f~tener elements 28 ana 29 o~ tbe recloseable ~eal 26 are not limited to any particular number of interengaging fastener element&. The rib~ 30 project outwardly from the double rib element fitrip 28 ~
~ufficient di~tance to be securely interengage~ with and held by their confronting and complementary counterpart~
in the double groove element ~trip 29. The double groove element strip 29 ~hown include~ three outwaraly ~n3~ s !A
eYtending walls 32 ~hich define two channels or groo~es 34 therebetween. The groove~ 34 are of sufficient width to firmly engage the ribB 30 ~hen ~h¢ confronting interengaging fastener 8trip8 28, 29 are preRRed S together. Both the secloseable ~eal 26 and the interengaging fastener a~sembly 27 can take any number of various characteristics and configurations in adàition to tho~e de~cribed herein.
The rear surfaces of the interengaging fastener elements 28, 29 inclu~e attachment mean~ in the form of flanges 36a, 36b which extend transYersely to the fastener element6 28, 29. These flanges 36a, 36b are of a sufficient width to proviae appropE~e 6urface~ to adhere and seal both the film ~heet 14 and the backing board 18 to the reclo~eable se~l fa~tener elements 28, 29. When the flange~ 36~, 36b are sufficiently wide, it is de~irable to locate tbe interengaging fastener ele~ents 28, 29 toward the bottom of the flanges ~o that the uppermo t portions 60 of the flanges 36a, 36b will serYe as pull flange~ 61 which easily enable the user to obtain easy accesz to the reclo~eable ~eal 26.
~8 ~hown in Figure 2, the flange~ 36a, 36b can be ~eparate members which are for~ea apart from the rib and groove element~ and ~ub~equently attached thereto by any suitable means 6uch a~ beat ~ealing or adhe~ive se~ling. Alternatively, a~ shown in Figure 3, the flanges 36a, 36b can be integrally formed with their respective faste~er ele~ents 28, 29. One ~ealing flange 36b of the inter~ngaging fastener ele~ent~ 28, 29 i8 dispo~ed so that the longitudin~l sur~ace ~Ob o~ the flange 36b i8 oppoEite and adjacen~ to the backing board 18. The interengaging f~tener as~e~bly 27 i8 attached to the backing board 18 by ad~ering the fastener element flange longituainzl ~urface 40b to the b~cking board acce~E edge 38. ~ may be accomplishea by zny , , - . ~ : : , : .
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appropri~te means such as a suitable adhe~ive or, in in~tances where the backing boara 18 is a thermoplastic material, the fastener assembly 27 ~ay be adhered to the backing board 18 by heat sealing, ultrasonic welding or the like. The interengaging fastener assembly 27 i6 preferably of the 6ame length a~ the backing board 18 anà the interengaging fa6tener ele~ents 28, 29 are attached together at their oppo~ite ends 70 io that t~e fastener material i8 not waFited in the trimming of the package 10 and ~o that it doe~ not interfere with the peripheral hermetic seal 4~ of the package.
After fitting the interengaging fastener as~embly 27 onto the backing board 18 and the end6 60 thereof are attached togetber, the product 12 is po~itioned on the backing board 18 ~ithin the upraised portion 15 thereof to for~ a product board a~sembly.
~he film ~heet 14 i8 brouqbt into contact with the backing board 18, and a vacuum i~ applied therebetween.
A ~econd, hermetic ~eal 44 i8 formed around the periphery of the product ana interior of the fir~t outer, recloseable seal 26. The film sheet 14 i~ then permanently ~aherea to the reclofieable ~eal 26 along t~e longituainal ~urface 40a of the factener element flanges 36a, by heat sealing, ultrasonic weldiny, by sealing with an aabe~ive, or by any other euitable means. Any air present between the fil~ sheet 14 ana the backing board 18 when the produc~ 12 i~ in~erted can be evacuated and/or the product 12 ga~-fluched if de~ired.
As be~t seen in ~igure 2, it i8 desirable to make a portion o~ the bermetic seal ~4 which i8 interior of and adjacent to the reclo~eable ~e~l 26 8 peelable ~eal 46 to allow the purcha~er ~imple and easy acce~s ~o the product 12. The hermetic ~eal 4~ may be entirely of ~ peelable nature with the her~etic ~eal portion thereof haYing a ~tronger bond e~fectea between the ~ nd the backing board peripher~l ~argin ~2 than in the , . .
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peelable seal portion 46 interior of the reclose~ble ~eal 26 60 t~at the hermetic seal ~4 is, for all intents and purpo~es, non-peelable. In any event, because the her~etic seal 44 i8 positioned interior of the recloseable seal 26, the likelihood of ~leaker~, i.e., packages wherein the product juices or oil~ eficape from the product area 16 and enter the reclo~eable seal area, is greatly dimir.ished.
Significantly, during production of pack~geb of the pre~ent invention, a continuous ~trip of the recloseable seal interengaged fastener ele~ents 28, 29 may be fed and applied to the acces~ edge 38 of a continuous length of the backing board 18. The continuou~ strip of interengaged fastener ele~ent~ 28, 29 are preferably trimmed e~en with the edge~ of the backing board 18 and are attached together at their ends 70 to for~ the package mouth 80. Ascordingly, t~ere i8 no wasting of the reclo~eable eal ~aterial. An individual backing board 1~ may then be di~en~ioned and cut from the continuous length and tran~ferrea to a product application are~. A preselected amount of luncheon meat 12 i8 then depo~ited on the backing board 18 witbin the previously formea upraised portion 15 to form a product-backing board as~embly, which i8 ~ubsequently 2S tran~ferred to a pæckaging tation where the ~ilm sheet 14 may be fed from fiupply roll~ into a position oppo~ite the product support ~urface 20 of ~he product-backing board a~embly an~ into contact therewith ~t a peripheral m~rgin ~2 extending around the product-backi~g board as~e~bly. The film sheet 14 iB
adhered to the recloseable ~eal fa~tener element flange ~urface 40a, and i~ further bonded to the backing board 18 at the peripheral m~rgin 42 thereof to form the package hermetic ~eal. Af~er the fil~ sheet 14 i~
bonded to the backing board 18, a pæckage label 75 (~hown in phantom) or other packAge graphic~ may be - ~ :
' ~03~ il7 'i applied to the film sheet in a conventional manner.
When it i~ desired to open a finished package, the user grips the two pull flange~ 60, 61 of the interengagea fa~tener element flange~ 36a, 36b and applies digital pull ap~rt force~ to open the peel seal portion 46 of the her~etic seal ~4. The recloseable seal 26 will 6eparate up to their attachea enas 70 ~nd open, thereby allowing acces~ to the inner peelable ~eal. The recloseable seal fastener element~ 28, 29 will open to form a p~ckage mouth 80 and because the recloseable seal 26 i~ adhered to the backing board 18 and attacbed at it6 ena~ 70, the likelihood o~
destruc~ion of the integrity of the p~ckage 10 i~
greatly diminished.
It will be ~een that while cert~in ~bodi~ents of the pre~ent invention have been sbown and described, it will be obviou6 to those 6killed in the are that change~ and modification~ may be made therein without departing from the true ~pirit of the scope of the invention.
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R~CLOS~ABLE PA~AG8 ~IS9 PRO W CT BACXI~G BOAaD
Backqround and Summarv of the ~nvention The present in~entio~ relates generally to reclo6eable packagee for hermetically ~ealing co~su~able product~ supported on a backing board and contained on the b~cking board by an opposing sheet of pack~ge film, : :
and more particularly to recloseable package~ for food proaucts and the like in which the recloReable ~eal fa~tener elemente are attached to the baeking board an~
~he oppo~ing package film sheet.
Certain processed meats ana/or food pro~uct~
sold to consumers are sold in package~ in which the proce~sed meats or food product~ are mounted on a backing boara. The fre~hne~s of these food products ~uch ac bacon, ~liced luncheon meats, chee~e~ ana the like contained ~ithin the~e p~cka~e~ depends upon the eYtent to whicb the package i~ vacuum packe~ or ga~
flu hea and ~ub~eque~tly hermetically ~ealea. Often~
the purchaser doe~ not u~e the food products containec within ~uch p w k~ges at once, but rather use~ the~ ov~r an eYtended period of time. When the initial hermetic ~eal of the package has been breacbed during opening of the p~ck~ge, ~ portion or portions o~ the packagæ are often remove~. In such in~t~nces, the package cannot be effectively re~e~led in a manner to pre~erve the freshne~s of the food products ~torea within. The , ~ . . ~ .
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purchaser must often repnck the food products in ~
aifferent ~uitably reclo~eable container. Accordingly, a need exl~t~ for an improved food product p~ckage of the backing board type which has a reclo~eable Eeal.
S The improved packages of the present invention proviae significant advantages in that the her~e~ic ~eal eYtend~ arouna the entire periphery of the pro~uct interior of the reclo~eable ~e~l 80 that the package i8 liquid tight and suitably retains within the package, fluias of the proaucts containea therein, incluaing water, juices, oil~ ana the like, while the pac~age recloseable ~eal i~ aahered to the proauct bac~ing board fiO tbat the package can be opened ~nd clo~ed r~peatedly to remove portions of the package contents without de~troying the integrity of the package. A ~zipper~
seal consi~ting of interengaging component~ ~uch as rib and groove fastener elements i8 the preferre~
recloseable 6eal mean6.
The hermetic ~eal dispo~ed on one surface of the proàuct backing boara around the periphery of the proauct has an easy open or peel ~eal portion locate~
a~jacent the product and interior of the recloseable seal. The recloseable ~eal is opened with digital pull-apart forces which are al~o used to open the pe~l ~eal. The peripheral hermetic seal can maintain a vacuum, pre~eurized anq/or ga~-flu~hea environment within the p~ckage. The peel seal area of tbe her~etic ~eal will be formed by effecting a face-to-face ~eal between ~ plastic film and the product b~cking bo~rd around the periphery of the product with the strength of ~ `
the seal permitting separation without de~truction or tearing of the pl~tic film.
The reclo~eable eal of the p~ckage of thi~
invention i8 attacheG to an acceeq edqe of the product backinq board ~s well a8 an acce~s edge of the pl~tic film ~heet. one of the reclo~eable ~eal in~erengag~ng ,' , .:
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fa~tener elements i8 adhered directly to the b~cking bo~ra v~ile the other of the intereng~ging f~stener ele-ents i8 aahered directly to t~e p~ckage plas~ic film sheet. In thi~ regard, the two intereng~ging fastener elements are fir~ly anchored to both the backing board and the package film, which decreases the po6sibility tbat the packaging material may tear or separate when the hermetic seal i8 opened.
Accordingly, it i~ a general object vf the present invention to provide an i~pro~ed recloseable package for use with proaucts positioned on a b~cking board ~hich has a first reclo~eable ~eal di~po~ed along ~n ~cces~ edge o~ the b~cking board and ~ second hermetic peel seal peripherally aajacent to ~he product ana adjacent the reclo~eable fieal.
Another object of the present invention i~ to provide a recloseable p~ckage for food proaucts and the like having a recloseable eeal disposed near ~n opening of the package ana attached to the product backing board and a her~etic se21 interior o~ the reclo~eable seal, the hermetic ~eal having a peelable ~eal area adjacent to ana interior of the recloseab~e ~eal.
Yet another object of the pre~ent invention i~
to provide an improved product package ~aving a peel seal and a reclo~eable seal, wherein tbe reclo~eable seal elements are 2tt~chea to an inner proauct ~upporting bacon board ~na to the outer pla6tic packaging fil~ sheet.
These ~nd other object~ o~ the present invention will b~come ~ore readily apparent from a reading of the ~ollowing detailed description.
Brief DescriDtion of the Drawina~
Figure 1 i~ a per~pective view of a package incorpora~ing the principles of the pre~ent invention.
~or purpose~ o~ illustration only, the package i~ ~hown a~ cont~ining v~cuu~,packea luncheon meat~s . ~ .
2~33.'~ 3~
Figure 2 i8 a cro~-sectional view t~ken along line 2-2 of Figure l; ~n~
~ igure 3 i~ an eYploded perspective ~iew of the package of Figure 1.
s Detailed DescriPtion of the Invention Figure 1 illustrates a reclo~eable package 10 con~tructed in accordance with the principle~ of the pre~ent invention. The packa~e6 10 of the prefient invention are particularly ~uitable for se~ling a peri~hable food product, shown in Pigure6 1 and 2 a~
luncheon meat slices 12, between one ~heet or panel 14, of a fle~ible packaging fil~ material and a product backing board 18. The fil~ sheet 1~ whicb ~or~ one &idewall of ~he package 10 can be nade from a variety of materials including plastic film~, ~ulti-layered laminate~ o~ co-eYtrusion~, thermofor~able ~aterial~ ana the like. A preferred pla~tic film for assembly of the packages of ~he pre~ent invention i~ one which i~
impervious to air, oxyg~n and/or moisture.
When the pack~ge film sheet 14 is formea from a laminated son~truction, it i~ de~irable to use a thin, inner layer which is imperviou~ to air, oxygen or moi~ture in combination with an outer layer having ~u~ficient fle~ibili~y and desirable ~tructural characteri~tic~ 80 th~t the laminate cnn ~unction a8 a package ~idewall film. For purpoces of illu~tration ~n~
aiscu~ ion, each film ~heet will be shown a~ ~ single he~t-~eal~ble l~min~. In actual practice~ each fil~
sheet will likely be ~ lamin~te o~ two or more layers which will provide eufficient protection ~o ~he product (e.g., oYygen and moi~ture barrier~) and which can for~
a her~etic, a~d if desired, peel~ble ~e~l a~ thin inner sur~aces. As ig known in the art, la~inates compri ed o~ vinylidene chloride polymer plaQtic ilms, such as ~Saran~, polyvinyl chloride, or ethylene vinyl acetate .: - ~ ~ .. . . . .
-- ~ - . . -., : - - . - :.
, , .. .
~ ;-,,,,, -2~3~
pla~tic film are suitable. When the fil~ ~heet l~ is of a laminated con~truction, it i~ preferable ~.o ha~e a layer of ethylene vinyl acetate on tbe surface of the film sheet which will cont~ct the product backing board 18 r ~igures 1 and 2 illu~trate a package lO in ~hich one film sheet 1~ encloses a plurality of luncheon neat slices 12 positioned on a generally rectangular, and ~ub~tantially rigid product tray or backing board 18, sometimefi referrea to a~ ~bacon~ boaras. Tbe backing board 18 is al~o preferably con~tructed from a material which i6 impervious to air, osygen ana/or :!~
~oisture. In tbis regard, ~ ~omewhat rigid thermoplastic ~heet i8 uced to provide a ~upport ~urface 20 for the luncheon meat 12 and to fierve as the other ~idewall of the packaqe 10. Backing board~ for~ea from polyvinyl chloride or Bnre~ have been founa to exhibit the preferred decirea rigidity ana film sealing capabilities. Cardboara may also be used as the product backing board provided that it has been previously renderea imper~iou~ to oYygen, air and/or mo6iture, such as by waY impregnation. The luncheon meat slices 12 or the like are de~irably positionea on the backing boar~
18 ~ithin a ~ean~ for retaining the luncbeon meat in a packaged product area 16, illustrated a~ a rai~ea portion or wall 15 of the backing board 18. Not only doe~ the rai~ed portion lS retain the luncbeon ~e~t 12 within the packagea product area 16, but al80 it confine~ any juice~, oil~, or fluid~ fro~ ~he luncheon meat within the product ~rea 16. The raised portion 15 can be formed integrally within the backing board 18 (mo~t easily accomplished when the backing board 18 ig made o~ 2 thermopla~tic ~aterial) or alternately, can be for~ec by attaching a separate member to the backing boara 18.
The film ~heet 1~ ana the backing board 18 are combinea by cont~cting each other around the luncheon - - - - - . - .. . . .
,: ,, , - - ,. , , ~ . .
. : - , ~ ,, , ~
: ~ ,: , - - ~ . , ~ o ~
~eat 12 to form an inside border are~ 22 ~itbin tbe raisea portion 15 ana a peripheral margin 42 e~tenaing arouna t~e periphery of the proauct a~ position~d on the backing boara 18. Wben a vacuum i8 appliea to the ~pace S between the film sheet 14 and luncheon meat ~2, the film sheet 14 is drawn inwaraly about the luncheon meat 12 or the like to conform to the contour thereof to pro~ide the package 10 with i~proved rigidity for witbst~nding rigorou~ handling during transport and retail display ana the like. When a laminatea film i5 u~ea wherein the surface of the film sheet 14 which contacts tbe backing board 18 i~ formea from a layer of ethylene vinyl acetate, the inherent adhe~i~e qualitie~ o~ the et~ylene vinyl acetate laminate form a fiecure, yet peelable, hermetic continuous edge seal 24 outside the board raisea portion 15, which maintain~ a ~ecure 8e~1 during handling ana ~torage that can be peeled back upon the application of digital forces appliea througb an outer recloseable ~eal 26 or the like.
As best sho~n in Figures 2 and 3, the package hac a first, outer reclo~eable seal 26 illu~tratea as a conventional interengaging faRtener as~embly 27 sucb as a rib ana groove fa~tener assembly. Although the interengaging fastener assembly 27 i~ illu~trated as one tbat is particularly secure for the illustratea type o~ package 10, namely having a length of a for~ed double rib element ~trip 28 and ~ ~imil~r length of a for~ed double groove ~trip 29, it will be noted that the interengaging f~tener elements 28 ana 29 o~ tbe recloseable ~eal 26 are not limited to any particular number of interengaging fastener element&. The rib~ 30 project outwardly from the double rib element fitrip 28 ~
~ufficient di~tance to be securely interengage~ with and held by their confronting and complementary counterpart~
in the double groove element ~trip 29. The double groove element strip 29 ~hown include~ three outwaraly ~n3~ s !A
eYtending walls 32 ~hich define two channels or groo~es 34 therebetween. The groove~ 34 are of sufficient width to firmly engage the ribB 30 ~hen ~h¢ confronting interengaging fastener 8trip8 28, 29 are preRRed S together. Both the secloseable ~eal 26 and the interengaging fastener a~sembly 27 can take any number of various characteristics and configurations in adàition to tho~e de~cribed herein.
The rear surfaces of the interengaging fastener elements 28, 29 inclu~e attachment mean~ in the form of flanges 36a, 36b which extend transYersely to the fastener element6 28, 29. These flanges 36a, 36b are of a sufficient width to proviae appropE~e 6urface~ to adhere and seal both the film ~heet 14 and the backing board 18 to the reclo~eable se~l fa~tener elements 28, 29. When the flange~ 36~, 36b are sufficiently wide, it is de~irable to locate tbe interengaging fastener ele~ents 28, 29 toward the bottom of the flanges ~o that the uppermo t portions 60 of the flanges 36a, 36b will serYe as pull flange~ 61 which easily enable the user to obtain easy accesz to the reclo~eable ~eal 26.
~8 ~hown in Figure 2, the flange~ 36a, 36b can be ~eparate members which are for~ea apart from the rib and groove element~ and ~ub~equently attached thereto by any suitable means 6uch a~ beat ~ealing or adhe~ive se~ling. Alternatively, a~ shown in Figure 3, the flanges 36a, 36b can be integrally formed with their respective faste~er ele~ents 28, 29. One ~ealing flange 36b of the inter~ngaging fastener ele~ent~ 28, 29 i8 dispo~ed so that the longitudin~l sur~ace ~Ob o~ the flange 36b i8 oppoEite and adjacen~ to the backing board 18. The interengaging f~tener as~e~bly 27 i8 attached to the backing board 18 by ad~ering the fastener element flange longituainzl ~urface 40b to the b~cking board acce~E edge 38. ~ may be accomplishea by zny , , - . ~ : : , : .
. . .
2~3~
appropri~te means such as a suitable adhe~ive or, in in~tances where the backing boara 18 is a thermoplastic material, the fastener assembly 27 ~ay be adhered to the backing board 18 by heat sealing, ultrasonic welding or the like. The interengaging fastener assembly 27 i6 preferably of the 6ame length a~ the backing board 18 anà the interengaging fa6tener ele~ents 28, 29 are attached together at their oppo~ite ends 70 io that t~e fastener material i8 not waFited in the trimming of the package 10 and ~o that it doe~ not interfere with the peripheral hermetic seal 4~ of the package.
After fitting the interengaging fastener as~embly 27 onto the backing board 18 and the end6 60 thereof are attached togetber, the product 12 is po~itioned on the backing board 18 ~ithin the upraised portion 15 thereof to for~ a product board a~sembly.
~he film ~heet 14 i8 brouqbt into contact with the backing board 18, and a vacuum i~ applied therebetween.
A ~econd, hermetic ~eal 44 i8 formed around the periphery of the product ana interior of the fir~t outer, recloseable seal 26. The film sheet 14 i~ then permanently ~aherea to the reclofieable ~eal 26 along t~e longituainal ~urface 40a of the factener element flanges 36a, by heat sealing, ultrasonic weldiny, by sealing with an aabe~ive, or by any other euitable means. Any air present between the fil~ sheet 14 ana the backing board 18 when the produc~ 12 i~ in~erted can be evacuated and/or the product 12 ga~-fluched if de~ired.
As be~t seen in ~igure 2, it i8 desirable to make a portion o~ the bermetic seal ~4 which i8 interior of and adjacent to the reclo~eable ~e~l 26 8 peelable ~eal 46 to allow the purcha~er ~imple and easy acce~s ~o the product 12. The hermetic ~eal 4~ may be entirely of ~ peelable nature with the her~etic ~eal portion thereof haYing a ~tronger bond e~fectea between the ~ nd the backing board peripher~l ~argin ~2 than in the , . .
, .................. , :
,................ . .
2 11~ 5 ~ :~ ,J
peelable seal portion 46 interior of the reclose~ble ~eal 26 60 t~at the hermetic seal ~4 is, for all intents and purpo~es, non-peelable. In any event, because the her~etic seal 44 i8 positioned interior of the recloseable seal 26, the likelihood of ~leaker~, i.e., packages wherein the product juices or oil~ eficape from the product area 16 and enter the reclo~eable seal area, is greatly dimir.ished.
Significantly, during production of pack~geb of the pre~ent invention, a continuous ~trip of the recloseable seal interengaged fastener ele~ents 28, 29 may be fed and applied to the acces~ edge 38 of a continuous length of the backing board 18. The continuou~ strip of interengaged fastener ele~ent~ 28, 29 are preferably trimmed e~en with the edge~ of the backing board 18 and are attached together at their ends 70 to for~ the package mouth 80. Ascordingly, t~ere i8 no wasting of the reclo~eable eal ~aterial. An individual backing board 1~ may then be di~en~ioned and cut from the continuous length and tran~ferrea to a product application are~. A preselected amount of luncheon meat 12 i8 then depo~ited on the backing board 18 witbin the previously formea upraised portion 15 to form a product-backing board as~embly, which i8 ~ubsequently 2S tran~ferred to a pæckaging tation where the ~ilm sheet 14 may be fed from fiupply roll~ into a position oppo~ite the product support ~urface 20 of ~he product-backing board a~embly an~ into contact therewith ~t a peripheral m~rgin ~2 extending around the product-backi~g board as~e~bly. The film sheet 14 iB
adhered to the recloseable ~eal fa~tener element flange ~urface 40a, and i~ further bonded to the backing board 18 at the peripheral m~rgin 42 thereof to form the package hermetic ~eal. Af~er the fil~ sheet 14 i~
bonded to the backing board 18, a pæckage label 75 (~hown in phantom) or other packAge graphic~ may be - ~ :
' ~03~ il7 'i applied to the film sheet in a conventional manner.
When it i~ desired to open a finished package, the user grips the two pull flange~ 60, 61 of the interengagea fa~tener element flange~ 36a, 36b and applies digital pull ap~rt force~ to open the peel seal portion 46 of the her~etic seal ~4. The recloseable seal 26 will 6eparate up to their attachea enas 70 ~nd open, thereby allowing acces~ to the inner peelable ~eal. The recloseable seal fastener element~ 28, 29 will open to form a p~ckage mouth 80 and because the recloseable seal 26 i~ adhered to the backing board 18 and attacbed at it6 ena~ 70, the likelihood o~
destruc~ion of the integrity of the p~ckage 10 i~
greatly diminished.
It will be ~een that while cert~in ~bodi~ents of the pre~ent invention have been sbown and described, it will be obviou6 to those 6killed in the are that change~ and modification~ may be made therein without departing from the true ~pirit of the scope of the invention.
. - . . . -. .
' ' . ': - ' ' . " . : ' . ~ , ~ , . ..
Claims (29)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method of enclosing a product deposited onto a product backing member with a single sheet of packaging material, the method comprising the steps of:
attaching a fastener strip assembly of interengaging fastener elements to a product backing member adjacent to and generally parallel to an access edge of the product backing member to define an access end portion, the interengaging fastener elements each having a package sealing flange disposed on opposite sides of the fastener strip, placing the product onto said product backing member in a manner such that the product does not contact the package sealing flanges of said fastener strip to form a product-backing assembly, placing one sheet of a flexible packaging material over the product-backing assembly, contacting the one sheet of flexible packaging material with said product backing board at a hermetic seal area around the periphery of said product on said product-backing assembly to create a hermetic seal which completely encloses said product on said product-backing assembly wherein said hermetic seal includes at least one peelable bond area generally at the access end portion of said product-backing member and interior of said interengaging fastener elements; and attaching aid one sheet of flexible packaging material to one of said fastener element package sealing flanges.
attaching a fastener strip assembly of interengaging fastener elements to a product backing member adjacent to and generally parallel to an access edge of the product backing member to define an access end portion, the interengaging fastener elements each having a package sealing flange disposed on opposite sides of the fastener strip, placing the product onto said product backing member in a manner such that the product does not contact the package sealing flanges of said fastener strip to form a product-backing assembly, placing one sheet of a flexible packaging material over the product-backing assembly, contacting the one sheet of flexible packaging material with said product backing board at a hermetic seal area around the periphery of said product on said product-backing assembly to create a hermetic seal which completely encloses said product on said product-backing assembly wherein said hermetic seal includes at least one peelable bond area generally at the access end portion of said product-backing member and interior of said interengaging fastener elements; and attaching aid one sheet of flexible packaging material to one of said fastener element package sealing flanges.
2. The method of claim 1, wherein said interengaging fastener elements are adhered to said one sheet of flexible packaging material and said product backing member by adhesive means.
3. The method of claim 1, wherein said interengaging fastener elements are adhered to said one sheet of flexible packaging material and said product backing member by beat sealing means.
4. The method of claim 1, wherein said interengaging fastener strip assembly includes interengaging rib and groove fastener elements.
5. The method of claim 1, further including the step of vacuum packing said product between said product-backing assembly and said one sheet of flexible packaging material.
6. The method of claim 1, further including the step of attaching said interengaging fastener elements to said product backing member by adhering a longitudinal surface of one of said interengaging fastener elements to said product backing member along substantially the entire length of the access edge of said product backing member.
7. The method of claim 1, further including the step of applying containment means to said backing member to contain said product in a packaging position on said backing member.
8. A method useful for enclosing a product between one sheet of film and a product board to provide a film package having a product enclosing portion and a recloseable seal portion, the one sheet of film being readily separable at the recloseable seal when access to the product is desired, the method comprising the steps of:
applying a continuous recloseable seal member adjacent and generally parallel to an access edge of a continuous product board, the recloseable seal member including a pair of interengaging fastener elements, each element having a package sealing flange, the continuous recloseable seal member being applied to the continuous product board along one of said package sealing flanges said interengaging fastener elements, separating an individual product board from said continuous product board, designating a product location on said product board to define a product enclosing portion, drawing the single sheet of package film around the product board assembly to bring said single sheet of packaging film into contact with said product board around the periphery of the product enclosing portion and interior of said recloseable seal member, attaching said single sheet of package film to the other of said package sealing flanges of said interengaging fastener elements, and bonding said single sheet of packaging film to the said product board around the periphery of the product enclosing portion, whereby a peelable hermetic bond is provided proximate to said product board access edge and a generally secure, yet peelable hermetic bond is provided as to the remainder of the package.
applying a continuous recloseable seal member adjacent and generally parallel to an access edge of a continuous product board, the recloseable seal member including a pair of interengaging fastener elements, each element having a package sealing flange, the continuous recloseable seal member being applied to the continuous product board along one of said package sealing flanges said interengaging fastener elements, separating an individual product board from said continuous product board, designating a product location on said product board to define a product enclosing portion, drawing the single sheet of package film around the product board assembly to bring said single sheet of packaging film into contact with said product board around the periphery of the product enclosing portion and interior of said recloseable seal member, attaching said single sheet of package film to the other of said package sealing flanges of said interengaging fastener elements, and bonding said single sheet of packaging film to the said product board around the periphery of the product enclosing portion, whereby a peelable hermetic bond is provided proximate to said product board access edge and a generally secure, yet peelable hermetic bond is provided as to the remainder of the package.
9. A recloseable package for hermetically sealing a product between a sheet of packaging film and a product backing board comprising, in combination:
a product backing board dimensioned to receive a preselected amount of product thereon in a backing board product area;
continuous recloseable fastener means attached to an access edge of the backing board, the continuous recloseable fastener means including opposed interengaging fastener elements being disposed generally parallel and adjacent to the access edge of said backing board and being further disposed near a mouth portion of said flexible package, the opposed interengaging fastener elements being further attached to each other at the ends thereof to define the mouth portion of said flexible package;
a sheet of packaging film contacting and bonded to said backing board around a peripheral margin of said backing board surrounding the backing board product area to form a package being a mouth portion, the film sheet further being attached to said continuous recloseable fastener means so as to form a recloseable seal near said mouth portion of said package, said film sheet and said backing board further being bonded together to form a hermetic peel seal between said film sheet and said backing board interior of said interengaging fastener elements.
a product backing board dimensioned to receive a preselected amount of product thereon in a backing board product area;
continuous recloseable fastener means attached to an access edge of the backing board, the continuous recloseable fastener means including opposed interengaging fastener elements being disposed generally parallel and adjacent to the access edge of said backing board and being further disposed near a mouth portion of said flexible package, the opposed interengaging fastener elements being further attached to each other at the ends thereof to define the mouth portion of said flexible package;
a sheet of packaging film contacting and bonded to said backing board around a peripheral margin of said backing board surrounding the backing board product area to form a package being a mouth portion, the film sheet further being attached to said continuous recloseable fastener means so as to form a recloseable seal near said mouth portion of said package, said film sheet and said backing board further being bonded together to form a hermetic peel seal between said film sheet and said backing board interior of said interengaging fastener elements.
10. The package of claim 9, wherein each of said interengaging fastener elements includes a sealing flange, said film sheet being attached to one of the interengaging fastener element sealing flanges, said backing board being attached to the other of said interengaging fastener element sealing flanges.
11. The package of claim 9, wherein said product backing board is a thermoplastic and said film sheet is a laminated film sheet, the inner surface of the laminated film sheet which contacts and bonds to said product backing board being a layer of ethylene vinyl acetate film.
12. The package of claim 9, wherein said hermetic peel seal is formed by adhesive means.
13. The package of claim 9, wherein said film sheet is formed from a flexible, oxygen impermeable laminated package film.
14. The package of claim 9, wherein said interengaging fastener elements include interengaging rib and groove elements.
15. The package of claim 9, wherein each of said interengaging fastener elements includes a longitudinal flange, said film sheet being attached to one of the interengaging fastener element longitudinal flanges and said backing board being attached to the other of said interengaging fastener element longitudinal flanges, the one interengaging fastener element flange having a transverse extension which enables said flange to be easily gripped.
16. The package of claim 9, wherein said package includes means for containing said product in said backing board product area.
15. The package of claim 9, wherein said package is for enclosing perishable food products.
18. The package of claim 9, wherein said backing board has a generally rectangular shape, and said film sheet is bonded to said backing board along the periphery of three edges of said backing board to form a generallly permanent hermetic seal peripherally adjacent to the packaged product along the three edges of said backing board and said film sheet is further bonded to said backing board interior of said recloseable fastener means to form a peelable seal, said backing board further including means for containing said product in said backing board product area, the containment means including a raised wall and defining said backing board product area.
19. A recloseable package for hermetically sealing a food meat product supported on a substantially flat product tray having a recloseable seal to permit periodic access to the package after initial opening of said package, comprising, in combination:
a sheet of flexible, oxygen-impermeable package film contacting and bonded to a food meat product tray for supporting said food meat product to define a flexible package bonded at three sides and having a fourth side containing a package mouth portion, the product tray having a food meat product support surface which is dimensioned to receive a preselected amount of food meat product thereon, continuous recloseable fastener means forming a recloseable seal for said package, the continuous fastener means including a strip of opposed interengaging fastener elements, the interengaging fastener elements being adhered to said product tray proximate to a first edge of said product tray and adjacent and generally parallel to the product tray first edge, each of said interengaging fastener elements including a longitudinal flange, said film sheet being bonded to the longitudinal flange of one of said interengaginq fastener elements and said product tray being bonded to the longitudinal flange of the other of said interengaging fastener elements, said film sheet further being bonded to said product tray at said package mouth portion interior of said recloseable fastener means to form a hermetic peelable seal on said product tray adjacent to and interior of said recloseable fastener means and between said recloseable fastener means and said product.
a sheet of flexible, oxygen-impermeable package film contacting and bonded to a food meat product tray for supporting said food meat product to define a flexible package bonded at three sides and having a fourth side containing a package mouth portion, the product tray having a food meat product support surface which is dimensioned to receive a preselected amount of food meat product thereon, continuous recloseable fastener means forming a recloseable seal for said package, the continuous fastener means including a strip of opposed interengaging fastener elements, the interengaging fastener elements being adhered to said product tray proximate to a first edge of said product tray and adjacent and generally parallel to the product tray first edge, each of said interengaging fastener elements including a longitudinal flange, said film sheet being bonded to the longitudinal flange of one of said interengaginq fastener elements and said product tray being bonded to the longitudinal flange of the other of said interengaging fastener elements, said film sheet further being bonded to said product tray at said package mouth portion interior of said recloseable fastener means to form a hermetic peelable seal on said product tray adjacent to and interior of said recloseable fastener means and between said recloseable fastener means and said product.
20. The recloseable package of claim 19, wherein said food meat product is a perishable luncheon meat product.
21. The recloseable package of claim 19, wherein said food meat product is vacuum packed between said film sheet and said product tray.
22. The recloseable package of claim 17, wherein said product tray is generally rectangular and is formed from a thermoplastic, said product tray including means for retaining said food meat product in a packaging position on said product tray, the retaining means including a raised portion of said product tray.
23. The recloseable package of claim 17, wherein said product tray is generally rectangular and is formed from cardboard which has been impregnated with way to render the cardboard impervious to oxygen.
24. A recloseable package for hermetically sealing a comestible, perishable product under a package film sheet comprising, in combination:
a generally rigid board dimensioned to receive and support a preselected amount of product;
the board including recloseable seal means including a strip of opposed interengaging fastener elements disposed on said board proximate to one edge thereof, the opposed interengaging fastener elements being attached together at their ends to form a package mouth portion, a sheet of package film disposed proximate to a surface of said board, the film sheet contacting the surface of said board around the product, said film being bonded to said board to form a first package hermetic seal around said product, the opposed interengaging fastener elements including a pair of opposed contacting flanges, one of the contacting flanges being in contact with and bonded to said film sheet and the other of said contacting flanges being in contact with and bonded to said board to form a second package recloseable seal disposed proximate to the board one edge and the package mouth portion, and said first package seal having a portion thereof which is interior of and adjacent to said second package recloseable seal which has a peelable hermetic seal.
a generally rigid board dimensioned to receive and support a preselected amount of product;
the board including recloseable seal means including a strip of opposed interengaging fastener elements disposed on said board proximate to one edge thereof, the opposed interengaging fastener elements being attached together at their ends to form a package mouth portion, a sheet of package film disposed proximate to a surface of said board, the film sheet contacting the surface of said board around the product, said film being bonded to said board to form a first package hermetic seal around said product, the opposed interengaging fastener elements including a pair of opposed contacting flanges, one of the contacting flanges being in contact with and bonded to said film sheet and the other of said contacting flanges being in contact with and bonded to said board to form a second package recloseable seal disposed proximate to the board one edge and the package mouth portion, and said first package seal having a portion thereof which is interior of and adjacent to said second package recloseable seal which has a peelable hermetic seal.
25. The recloseable package of claim 24, further including means for retaining the product in a packaging position on said board.
26. The recloseable package of claim 25, wherein said board is a thermoplastic, and said product retaining means includes a raised portion of said board peripherally surrounding said product.
27. The recloseable package of claim 26, wherein said package contain a food meat product which is vacuum-packed on said board between said film sheet and said board, said board being formed from a polyvinyl chloride sheet and said film sheet having a layer of ethylene vinyl acetate which contacts said board.
28. The recloseable package of claim 24, wherein said interengaging fastener contacting flanges are bonded to said film sheet and said board by adhesive means.
29. The recloseable package of claim 24, wherein said interengaging fastener element contacting flanges are bonded to said film sheet and said board by heat sealing means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48217390A | 1990-02-20 | 1990-02-20 | |
| US482,173 | 1990-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2035196A1 true CA2035196A1 (en) | 1991-08-21 |
Family
ID=23915004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002035196A Abandoned CA2035196A1 (en) | 1990-02-20 | 1991-01-29 | Recloseable package with product backing board |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0443723A1 (en) |
| JP (1) | JPH04215953A (en) |
| CA (1) | CA2035196A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6539762B2 (en) * | 2018-04-19 | 2019-07-03 | 株式会社生産日本社 | Product of outer bag with product taken-up or folded product, method of manufacturing them and method of supplying bag |
| JP7261618B2 (en) * | 2019-03-06 | 2023-04-20 | 株式会社生産日本社 | Product-filled outer bag, product-filled outer bag wound or zigzag product, manufacturing method thereof, bag supply method, cylindrical outer bag with fittings and use of cylindrical outer bag |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4246288A (en) * | 1979-08-09 | 1981-01-20 | W. R. Grace & Co. | Reclosable package |
| US4371553A (en) * | 1980-08-01 | 1983-02-01 | James River-Dixie/Northern, Inc. | Package including product support insert |
| US5067822A (en) * | 1989-04-24 | 1991-11-26 | Reynolds Consumer Products, Inc. | Method of forming recloseable packages, profiles used therein, and packages produced thereby |
-
1991
- 1991-01-24 EP EP91300545A patent/EP0443723A1/en not_active Ceased
- 1991-01-29 CA CA002035196A patent/CA2035196A1/en not_active Abandoned
- 1991-02-20 JP JP2602891A patent/JPH04215953A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0443723A1 (en) | 1991-08-28 |
| JPH04215953A (en) | 1992-08-06 |
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| JP5103437B2 (en) | Packaging bag with zipper | |
| JP3073188U (en) | Food packaging bags |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 19930731 |