JP4927308B2 - Plastic film package with tearable tape strip - Google Patents

Plastic film package with tearable tape strip Download PDF

Info

Publication number
JP4927308B2
JP4927308B2 JP2002546003A JP2002546003A JP4927308B2 JP 4927308 B2 JP4927308 B2 JP 4927308B2 JP 2002546003 A JP2002546003 A JP 2002546003A JP 2002546003 A JP2002546003 A JP 2002546003A JP 4927308 B2 JP4927308 B2 JP 4927308B2
Authority
JP
Japan
Prior art keywords
film
tape strip
tear
tearable tape
tearable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2002546003A
Other languages
Japanese (ja)
Other versions
JP2004514616A (en
Inventor
エル.ジュニア シーハン,リチャード
ブイ. スタッグ,ティモシー
エー. マイナー,ディーン
Original Assignee
スリーエム イノベイティブ プロパティズ カンパニー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US09/728,697 priority Critical patent/US20010000480A1/en
Priority to US09/728,697 priority
Application filed by スリーエム イノベイティブ プロパティズ カンパニー filed Critical スリーエム イノベイティブ プロパティズ カンパニー
Priority to PCT/US2001/010165 priority patent/WO2002044052A1/en
Publication of JP2004514616A publication Critical patent/JP2004514616A/en
Application granted granted Critical
Publication of JP4927308B2 publication Critical patent/JP4927308B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/24End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D75/00Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52Details
    • B65D75/58Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66Inserted or applied tearing-strings or like flexible elements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/15Sheet, web, or layer weakened to permit separation through thickness

Description

[0001]
Technical field
The present invention relates to plastic film packages and tearable tape strips. More specifically, the present invention relates to a package formed of a continuous tear resistant film having a tearable tape strip that facilitates opening.
[0002]
Background of the Invention
Containers or packages, such as bags and other packages, must be securely sealed to accommodate their contents. The package must be kept hermetically sealed during storage and transport and must withstand the vibrations and shocks of rough handling. At the end of delivery, the consumer or end user must open the package and remove the contents. Ideally, the package can be opened without the use of tools or special skills. It is difficult to achieve both secure sealing and easy opening. Many packages are often difficult to open, although they can be transported reliably. For example, many multi-layer paper bags with dog food or fertilizers have a stitched top that is kept sealed during transport, but without using tools or damaging or unused the bag It is difficult for end users to open without spilling the contents. In addition, for example, a plastic film may be used as a packaging material for containing the water softener pellets. However, it is difficult for end users to open these packages, especially when tear resistant films are utilized.
[0003]
For cardboard or paperboard packages, conventional narrow tear strips can be used to facilitate their opening. In this regard, Minnesota Mining and Manufacturing Company (3M) has been selling traditional tear strips for many years. One form of conventional narrow tear strip (3M # 8612 tape) has a polyethylene terephthalate (PET) backing and a reinforcing filament made of polyester yarn or fiberglass coated with a pressure sensitive adhesive (PSA). . This tear strip is applied inside a cardboard box or inside a paperboard postal envelope. Cut the cardboard or paperboard outside the tear strip to provide a tab that can be pulled by the end user. During opening, the tear strip remains intact and is not split. The tear strip is pulled across the cardboard or paperboard to tear it. This conventional narrow tear strip can be used only when it is lightweight because the force required to tear the material is relatively small. In other forms, tensilized polypropylene tape with pressure sensitive adhesive and optionally reinforced strapping tape is used. These types of tearable tape strips can also be applied to the adhesive surfaces of wider film tapes such as box sealing tapes or heat shrinkable tapes. Again, the wide tape is cut to provide a tab to initiate tearing. The distance between the cuts is wider than the width of the tape strip. This is only used in lightweight packages because the cuts tend to propagate early during transport when used with heavier shipping containers. Using this type of conventional narrow tear strip on a linear low density polyethylene (LLDPE) tape backing would not help because the tear strength and elongation of the LLDPE is too great.
[0004]
Efforts have been made to improve these paper-based envelopes and to make them easier to open with the conventional narrow tear strips described above. For example, US Pat. No. 4,781,296 discloses enabling the opening of a Tyvek® spunbonded olefin envelope. It is an improvement over an ordinary paperboard envelope that is relatively easy to open using conventional narrow tear strip products. This highly tear resistant envelope material can be melted by ultrasonic sealing to form a weak line. EP 447209 discloses an improved opening for a Tyvek® envelope. It uses reinforced strapping tape (or similar tape) with cuts at the ends to control the tear direction across the envelope. It also includes cutting the Tyvek® material across it rather than simply weakening it. These patents describe openers for lightweight mail envelopes. They work well in this lightweight application, but are relatively easy to tear the tape, so they should not be used to resist splitting when used in heavier packages. Not easy.
[0005]
EP 755868 discloses a paperboard envelope that uses a single tape to seal and open the envelope. Since the adhesive is coated on both sides of the uniaxially oriented plastic film, this film can function not only as an opening tape but also as a sealing tape. The tape is cut to control the direction of tearing. The paperboard material not only provides the packaging strength but also provides the required tear resistance.
[0006]
Applying a conventional narrow tear strip to a paperboard or Tyvek® envelope is very feasible. Unfortunately, however, it is not easy to apply the same technology to plastic film type packages. Plastic-based film packaging materials have become widely used. Plastic films are relatively inexpensive and are very suitable for packaging in mass production. In addition, the plastic film can be tightly wrapped around the article of interest using, for example, shrink wrap or skin packaging techniques. As with a paperboard or Tyvek® package, a plastic film package, in particular, is a tear resistant film (ie, a film that exhibits a fracture propagation tear resistance greater than 20 Newtons (N) per ply). When used, it presents certain problems associated with opening by end users. Typically, the end user is forced to use a cutting tool to open the film package. This can cause trauma and / or product damage.
[0007]
In addition, conventional narrow tear strips (with PSA or heat activated adhesive) have been utilized in lightweight, low tear strength packaging films. One example of such an application is a top packaging made of a biaxially oriented polypropylene (BOPP) film applied around a cigarette box. For low tear strength type films (and / or plastic films that exhibit very little if any stretching due to tearing), conventional narrow tear strips are usable openers. However, many plastic films useful for product packaging are tough and tear resistant. For example, polyethylene films are widely used to package or contain a variety of products such as beverage containers, foods and the like. Unfortunately, conventional narrow strips are essentially useless due to the tear strength associated with tear resistant films such as polyethylene. Conventional tear strips cannot tear the opening through the tear resistant film “cleanly”. On the contrary, the tear resistant film is resistant to tear forces and will probably stretch or stretch where the tear forces are applied. Even if the film is not simply torn and the tear strip is peeled away from the film or the film is continuously stretched and an opening is obtained, it will not be sufficient to access the contained articles. As is done with Tyvek® envelopes, it is possible to weaken the film in the area of a conventional narrow tear strip (eg, by providing perforations) to facilitate tearing. These imperfections often cause premature destruction of the packaging material before delivery to the end user.
[0008]
Plastic film is a packaging material that continues to be very widely used. However, if the plastic film is tear resistant and cannot be torn cleanly by other means, the package cannot be satisfactorily opened using conventional narrow tear strips. On the contrary, if a tear resistant film package is provided, end users typically need to open the package with a cutting tool, which can result in trauma and product damage. Accordingly, there is a need for a package that utilizes a tear resistant film in combination with a tearable tape strip that can be applied to tear the opening through the film.
[0009]
Summary of the Invention
One embodiment of the present invention relates to a package for housing an article. The package comprises a continuous tear resistant film and a tearable tape strip. The film can be shaped to define a sealed area for containing the article. A tearable tape strip is secured to the film. In this regard, the tearable tape strip is configured to controllably tear the opening through the film to tear the tearable tape strip and access the sealed area. By providing a continuous tear resistant film, the package can be used to safely accommodate a variety of different articles, and withstands the harshness of most transportation and handling environments. In addition, the tearable tape strip allows the end user to easily open the package. In a preferred embodiment, a single tearable tape strip is provided and formed as an internally tearable reinforced strapping tape adhered to the inner surface of the film.
[0010]
Another aspect of the invention relates to a packaged product comprising an article and a package. The package comprises a continuous tear resistant film and a tearable tape strip. The film forms a sealed area in which articles are received. In addition, the tearable tape strip is secured to the surface of the film. In this regard, the tearable tape strip is configured to controllably tear the opening through the film to tear the tearable tape strip and access the article. In preferred embodiments, the tear resistant film is wrapped around the article, which can take a variety of forms such as food, multiple products, and the like.
[0011]
Yet another aspect of the invention relates to a method of packaging an article. The method includes providing an article and providing a continuous tear resistant film. A tearable tape strip is secured to the surface of the film. Next, a film is formed so as to define a sealed area for accommodating the article. The tearable tape strip is configured during final assembly to controllably tear the opening through the film to tear the tearable tape strip and access the article. In a preferred embodiment, the method of the present invention requires securing only one tearable tape strip. Furthermore, rather than sliding the article into a pre-formed envelope, the film is preferably wrapped around the article. Thus, since the film can be formed in forms other than envelopes, the articles need not be so flat, but rather have irregular shapes that are commonly found in food, packaged beverage containers, etc. May be.
[0012]
Yet another aspect of the present invention relates to a method for opening a packaged product. The method includes providing a packaged article comprising an article contained within a sealed area formed by a continuous tear resistant film having a tearable tape strip secured to the surface. The tearable tape strip is then torn so as to controllably tear the opening through the film. Unlike some previous opening methods associated with tear resistant film packages, no separate cutting tool is required.
[0013]
DESCRIPTION OF PREFERRED EMBODIMENTS
One aspect of the present invention is a tape that has a function of sealing a container (container) 9 and also provides a mechanism for easily opening the container. The container 9 may be any container such as an envelope or box, but one aspect of the present invention is particularly well suited for flexible containers such as bags such as multilayer paper bags for storing granular material. Function. As shown in FIG. 1, a tear strip tape 10 combines a base layer 12 that is a tear resistant tape with a tearable tape strip 14. The base layer 12 includes a tear resistant backing 16 having a first surface 18 and a second surface 20, and an adhesive 22 located on the first surface 18 of the backing 16 in the illustrated embodiment. Adhesive 22 can be applied to backing 16 by any known method, such as knife coating.
[0014]
The tearable tape strip 14 can be attached to either the first side 18 or the second side 20 of the base layer backing. In some of the illustrated embodiments, the tearable tape strip 14 is adhered to the first surface 18 of the backing 16 using an adhesive 22. In use, the tearable tape strip 14 is placed on the container 9 between the container and the base layer 12 without adhering to the container. In some of the illustrated embodiments, the tearable tape strip 14 has itself a base layer 24 and itself to assist adhesion of the tear strip tape 10 to the base layer 12 on one side of the base layer. Adhesive 26. In other embodiments, the adhesive 26 is on the other side of the tape strip base layer 24 that is tearable to adhere to the container 9. In other embodiments, the tearable tape strip 14 need not include an adhesive.
[0015]
The backing 16 can be linear low density polyethylene (LLDPE), low density polyethylene (LDPE), cast polypropylene, Kraton® / polypropylene blend, or other tear resistant film. The tearable tape strip 14 can be a tearable filament reinforced tape or a reinforced strapping tape (RST) having filaments or ribs 28. Suitable RSTs are described in US Pat. Nos. 5,079,066 and 5,080,957. The tearable tape strip 14 may be tensed polypropylene or other oriented or non-oriented film that tears preferentially in the longitudinal direction. Ribs 28 constrain tearing of the tearable tape strip 14 to control the direction of tearing. The cuts 30 in the tearable tape strip 14 form end tabs 32 and serve as tear initiation points. The stress generated when handling the container 9 is concentrated at these locations. The tear resistant base layer 12 prevents tear propagation from prematurely and allows a person to easily pull the end tab 32 to open the container 9. A variety of tear resistant tapes 12 are available. By balancing the strength, early division, and ease of opening, the tape 10 having the desired overall characteristics can be obtained. Container 9 was sealed using the present invention and subjected to a harsh and rough handling test. They were able to withstand these stresses without problems and still allow easy opening. This tape 10 combines the fragility of a tearable tape strip 14 such as RST (the tendency to split it in the longitudinal or machine direction) with the inability to clean the tear resistant backing. Form a very functional opening mechanism against “Nearly tear” means that the torn film is torn and opened consistently with a relatively uniform tear force without causing excessive deformation (ie, stretched or stretched). Or no jagged edges).
[0016]
One embodiment of the present invention is shown in FIG. A backing 16 made of a tear resistant film such as LLDPE and an adhesive 22 such as PSA function as the base layer 12 that seals the container 9. A narrower filament reinforced tape or reinforced strapping tape is a tearable tape strip 14 and is laminated to the tear resistant base layer 12 with the adhesives facing each other. The cut 30 provided in the tape 10 becomes a tear starting point. The cut 30 is disposed through both the base layer 12 of the tape 10 and the tearable tape strip 14. The tape 10 is applied to the container 9. An end tab 32 formed at the end of the tape assists in opening the container 9.
[0017]
In another embodiment shown in FIG. 3, the end tab 32 can be placed flat against the container 9 during transport and delivery. In this configuration, the incision 30 begins at the end of the tape 10 at a location that penetrates only the base layer 12. The distance between the cuts 30 is larger than the width of the end tab 32. As shown, the cut is then directed to penetrate not only the base layer but also a portion of the tearable tape strip 14. This direction change is shown as a smooth curve, but any shape can be used. An important aspect of this feature is that at the end of the tape, the end tab 32 includes a portion of the tape 10 having the adhesive 22 so that the adhesive of the sealing tape can be lightly secured to the bag, and the end tab 32 is , Having at least a portion extending through the tearable tape strip 14.
[0018]
In another embodiment shown in FIG. 4, the tape 40 includes a tape layer 42 that is a strip of film tape, such as a box sealing tape made of biaxially oriented polypropylene. The tape layer 42 includes a backing 44 and an adhesive 46. This tape layer 42 is not tear resistant when incised, but provides good sealing strength at low cost. A narrower tearable tape strip 14 is laminated to a tear resistant tape 12 having a similar width, such as 3M # 8883 tape. The tearable tape strip 14 includes a base layer 24 and an adhesive 26, and the tear resistant tape 12 includes a base layer 16 'and, although not required, an adhesive 22'. The tear resistant tape 12 is disposed only in the area where its function is required, i.e., the area spanning the two parts of the container 9 that adhere to each other and seal the container. (Note that if the box sealing tape is used in combination with the RST without using a tear resistant film, the cut provided in the RST may easily propagate.) This embodiment is the same as in FIG. In addition, the tear is prevented from propagating early, and the person can easily open the container 9 by pulling the end tab 32.
[0019]
This structure can be formed in several ways. In one method, a tear resistant tape 12 such as 3888 (St. Paul, Minnesota) # 8883 tape can be laminated between the box sealing tape layer 42 and the tearable tape strip 14 at the application site. It is. Alternatively, RST tape can be used as a tearable tape strip 14 and laminated to tear resistant tape 12 (3M # 8883 tape) and provided to the customer in the form of a roll. This will be applied to the box sealing tape layer 42 at the point of application. Still other methods include integrating all layers during manufacture. The tear resistant tape 12 is coated or laminated to the tearable tape strip 14. Next, the multilayer structure is fixed to the tape layer 42 including the backing 44 and the adhesive 46. FIG. 5 shows an embodiment in which no adhesive is present on the tear resistant layer. The tape 50 is formed simply by placing the tear resistant base layer 16 between the tape layer 42 and the tearable tape strip 14.
[0020]
As an example, a tear resistant adhesive base layer 12 having a length of 40.6 cm (16 inches), such as 3M # 8883 tape with LLDPE backing 16 and PSA adhesive 22 of 0.008 cm (3 mils). The strip sealed a 20 kg (44 lb) bag with dog food. (3M # 8883 tape is the “stretch tape” used here because it is tear resistant.) Apply a 12 mm wide strip of tearable tape strip 14 (3M # 864 RST tape) to the end A cut 30 was provided to form an end tab 32. The bag was subjected to a drop test according to ASTM D5276 standard. A 76 cm (30 inch) drop was made to the front, back, two sides, and two ends of the bag. Even after 6 drops, the bag was never opened. Next, the bag was lifted several times by pinching “notches” formed by gussets, but neither opened nor propagated. The bag was easily opened by pulling the tab.
[0021]
A similar bag with dog food was sealed with tape having 48 mm wide box sealing tape (3M # 372 tape) laminated to 12 mm wide 3M # 8883 tape and 12 mm wide 3M # 864 tape. Also, several bags were sealed with a structure comprising a 48 mm wide box sealing tape, a 3M # 864 tape, and a 12 mm wide laminate of 0.008 cm (3 mil) LLDPE film. Other bags were sealed with 010 cm (4 mil) LDPE film. This structure was also good in drop test and lifting test, and then easily opened.
[0022]
To measure the force required to open a tape or base structure, Instruments, Inc. The test was performed using a ZPE 1000 High Rate Peel Test System. Test at 0.5 m / sec (typical of actual speed used by end users) and measure the force required to pull the tab (two tears across the tape) in Newtons did. The results are summarized in the following table. Tests were also conducted at other speeds. The results at these speeds were predictable. That is, the force increased with decreasing speed and decreased with increasing speed. At all speeds, similar force differences were produced between the various tape samples.
[0023]
[Table 1]
[0024]
Table 1 shows that the use of a tear resistant film in the structure (3M # 8883 tape in the examples) significantly increases the force required to tear and reduces the possibility of early opening of the container. Yes. When a standard tear strip tape such as 3M # 8612 (with cuts along both sides) is used in combination with # 8883, the LLDPE backing deforms and stretches but does not provide functional tear. However, the example using a single tape construction of # 8883 elastic tape did not work. The tape broke without tearing along its length.
[0025]
In other embodiments shown in FIGS. 6 and 7, the container 60 includes a tape for sealing the container. The container 60 may be flexible or a bag. The tape may be a tearable tape strip 62 or may be part of a container 60 in the sense of simplifying the tape. For example, the container 60 may have a flap 64 to seal the container. The flap 64 has first and second major surfaces and is formed from a tear resistant film. Films are defined as continuous and are made from materials other than sheet material. (Sheet material is defined as a material made of fibers. Fibers may be matted, felted, beaten, or refined, like traditional paper. It can be made of cellulose or other materials including synthetic and plastic materials that can be combined and integrated.)
[0026]
The flap 64 can be weakened along a tear line that occurs later (eg, by a slit, perforation, or score line). As shown, the flap 64 is not weakened. “Not weakened” means that there are no slits, perforations, or score lines in the flap, and that the flap is not subjected to any processing intended to be weakened. A cut 70 may be provided at the end of the tearable tape strip 62 and flap 64 to facilitate the opening process. These notches 70 can form tabs and the flaps 64 are made of tear resistant plastic so that the flaps 64 are not weakened. There is no need to weaken the flap 64 because the tear-resistant tape strip 62 tears the tear-resistant film relatively easily by other means and opens the container. This is a significant difference from known sheet material envelopes and containers that require weakening to function well. Vulnerability requires additional manufacturing steps and increases costs.
[0027]
The container 60 includes a mechanism such as a glue or adhesive 66 for adhering the first major surface of the flap to the container and sealing the container. The adhesive 66 can be coated on at least a portion of the first major surface of the flap 64 and / or on other portions of the container 60 or both. The adhesive 66 can optionally be protected with a release liner prior to sealing the container 60. A tearable tape strip 62 is disposed on one or both of the first and second major surfaces of the flap 64. Even though the tear resistant film flap 64 cannot be torn cleanly by other means, the tearable tape strip 62 can be used to tear itself and the flap 64 with a given force. Become.
[0028]
If the tearable tape strip 62 is placed on the first major surface of the flap 64, the flap is torn by tearing the tearable tape strip. In this configuration, an optional cover tape 68 can be placed on the second major surface of the flap 64 opposite the tearable tape strip, as shown in FIG. Cover tape 68 enhances the ability to tear flap 64 cleanly, possibly by constraining the extension of the flap during tearing. This is demonstrated by the reduced force required in Example 2 using box sealing tape compared to Example 1 without it. # 371 Biaxially Oriented Polypropylene (BOPP) Box Sealing Tape, # 355 PET Box Sealing Tape, # 821 Acetate Tape, and # 600 Polyvinyl Chloride (PVC) Tape (all made from 3M (St. Paul, Minnesota)). First, various tapes can be used as the cover tape 68. All of these tapes have less elongation than the film used for the flap 64.
[0029]
The flap 64 can be made of LLDPE, LDPE, cast polypropylene, and a blend of Kraton® and polypropylene. The tearable tape strip 62 may be RST, tensilized polypropylene, and filament reinforced tape. Also, the tearable tape strip 62 can include filaments, ribs, or both formed on one or both of its first and second sides.
[0030]
Another embodiment of the present invention relates to a tear resistant film package having an easy-open function. For example, FIGS. 8A and 8B show a packaged product 100 according to the present invention in both a sealed state (FIG. 8A) and an opened state (FIG. 8B). The packaged product 100 includes a package 102 and an article 104. As described in more detail below, the article 104 can include multiple objects (eg, the embodiments of FIGS. 8A and 8B) or a single object. In general, the package 102 forms a sealed area 106 in which the article 104 is received.
[0031]
Package 102 includes a continuous tear resistant film 108 and a tearable tape strip 110. The tear resistant film 108 forms a sealed area 106 and houses the article 104. The tearable tape strip 110 is secured to the surface of the film 108 to facilitate opening the film 108 by tearing the tearable tape strip 110.
[0032]
The continuous tear resistant film 108 can take a variety of forms and is a plastic material. More specifically, the film 108 is highly durable and satisfies the constraints associated with most shipping and handling environments. As described below, the film 108 is characterized as being “continuous” and “tear resistant”. In a preferred embodiment, the film 108 is characterized as being “tough”.
[0033]
First, by being “continuous”, the film 108 is made from a material other than the sheet material. A sheet material is defined as a material made of fibers. The fibers may be matted, felted, beaten, or refined, made of cellulose like traditional paper or bonded like Tyvek®. Other materials including synthetic and plastic materials that can be integrated together.
[0034]
Second, film 108 is defined as being “tear resistant” by exhibiting a relatively high fracture propagation tear resistance. In this context, a film having a fracture propagation tear resistance of 20 N / ply or more, more preferably 30 N / ply or more, most preferably 40 N / ply or more is considered to be “tear resistant”. As described in more detail below, the film's fracture propagation tear resistance is preferably determined according to standard test method ASTM D2582-93 which determines the fracture propagation tear resistance of plastic films and thin sheets.
[0035]
Finally, the film 108 is preferably defined as being “tough”. “Toughness” refers to the energy required to tear a film 108 a specific distance and is thus related to tear strength. In addition, however, the “tough” film is extensible so that the applied tear does not propagate easily along the film. In other words, a “tough” film stretches before being torn in response to tear forces. Thus, in a preferred embodiment, the film 108 does not spontaneously cleanly tear apart. Here, “cleanly tear” means that the torn film is torn and opened consistently with a relatively uniform tearing force without causing excessive deformation (elongation or stretch-out). Or no jagged edges).
[0036]
With the above characteristics of film 108 noted, some plastic films are acceptable. Examples of available continuous tear resistant films include polyethylene, linear low density polyethylene (LLDPE), low density polyethylene (LDPE), Surlyn® ionomer film (available from DuPont), Kraton® ) / Polypropylene blends, copolymers of propylene and ethylene, blends of polypropylene and polyethylene, nylon, polyvinyl chloride, and polyvinylidene chloride, but these are just a few examples. Each of the films listed above (as well as other materials not specifically specified) each have a specific thickness and specific processing to obtain the “tear resistance” qualification as defined herein. It will be understood that this must be done. In other words, “tear resistance” is a function of material type, material thickness, and material processing. However, for most packaging applications, each of the above-identified materials is currently provided in a thickness sufficient to qualify for “tear resistance”. Further, the film 108 can have either a single layer or multiple layer configuration. In the case of a multilayer film, the layers may be the same or different. For example, in a preferred embodiment, the film 108 includes a first layer made of polyethylene and a second layer made of polypropylene. By way of example, materials specifically excluded from use as film 108 include Tyvek®, cellophane, cellulose acetate, BOPP, and the like.
[0037]
The tearable tape strip 110 is similar to that previously described, and is configured to tear the tearable tape strip 110 through the film 108 and controllably tear the opening. The expression “controllable tear” means that the tear in the film 108 corresponds to a tear in the tape strip 110 that tears substantially uniformly or cleanly across the film 108 and is tearable in terms of length and width. Point to. The tear edges in the film 108 are not so jagged or stretched so much. In this regard, based on the tear resistance of the film 108, the tearable tape strip 110 is preferably formed so that it can be torn inside. More particularly, referring further to FIG. 9A, the tearable tape strip 110 is preferably an elongated body defined by a longitudinal central section 120 and opposing longitudinal sides 122. is there. The central section 120 can be torn against the opposing side 122, such as by forming a tearable tape strip 110 that includes a plurality of ribs 124 extending from the base 126. Thus, in this configuration, for example, when a tensile force is applied to the central section 120 with a pre-shaped tab 128 (shown most clearly in FIG. 8A), the central section 120 faces between each of the ribs 124. It is torn cleanly or evenly from the side 122. In this case, since the central section 120 is torn against the side 122, the tearable tape strip 110 can be “teared inward.” In particular, the size of the tab 128 defines the width of the central section 120. As a result, the width of each of the central section 120 and the side portions 122 can be varied depending on the particular application. In this preferred configuration, the opposing sides 122 effectively support or strengthen the material (eg, film 108) secured to the tearable tape strip 110 so that the central section 120 controls the contacted material. Can be torn apart In addition, the tearable tape strip 110 may have a configuration other than a configuration that allows tearing on the inside. For example, two sections can be designed to tear in a parallel configuration.
[0038]
As already mentioned, the tearable tape strip 110 includes a reinforced strapping tape, a tearable filament reinforced tape, a tensilized polypropylene, or other oriented or non-oriented film that is preferentially torn in the longitudinal direction. Can take a variety of forms. In the most preferred embodiment, the tearable tape strip 110 is a reinforced strapping tape having a width of at least 8 mm, such as the tape available under the trade name 3M to 864 Scotch® reinforced strapping tape. Unlike conventional tear strips having a width of less than 8 mm that cannot be torn inside, the tearable tape strip 110 can tear the continuous tear resistant film 108 in a controllable manner.
[0039]
Several representative films were tested to confirm the usefulness of the tearable tape strip 108 compared to a conventional narrow tear strip. In particular, each of the films listed in Table 2 below was subjected to a fracture propagation tear resistance test using a carriage weight of 1195 grams and a carriage height of 17.3 cm according to ASTM D2582-93. In addition, to evaluate the ability of a conventional narrow tear strip to tear the film, the film was tested by tearing by hand. The conventional narrow tear strip was a tear strip having a width of 0.125 inches (3.2 mm) available from 3M Company under the trade name "3M 8621 Tear Strip Tape".
[0040]
In some cases, samples were obtained as commercial envelopes with flaps. In other cases, the sample was not molded into an envelope in advance, but was marketed as a film. Regardless, attempts were made to tear conventional films or envelope flaps at a rate of about 0.3 meters / second with conventional narrow tear strips secured to the listed film or envelope samples. A tear test was performed on each sample in both the machine direction (“MD”) and the cross-web direction (“CD”). For the envelope samples, the machine direction and cross web direction were unknown. Thus, for envelope samples, “MD” refers to the tear test along the length or “long side” of the envelope flap, and “CD” refers to the tear test perpendicular to the length of the envelope flap. Finally, the tearability of each sample was evaluated according to the following criteria. Assign “1” to the sample when the sample is easily and cleanly torn, assign “2” to the sample when the sample is not torn cleanly even if the sample is torn, and assign “3” to the sample when the sample is not torn Assigned. Taking the above explanation into account, the following results were obtained.
[0041]
[Table 2]
[0042]
As a reference point, a sample marked “SAC” is available from Sealed Air Corporation of East Saddle Brook, New Jersey, and a sample marked “Tyco” is available from Tyco International Inc. It is a low density polyethylene film available from of Exeter, New Hampshire.
[0043]
Based on the above test results, conventional narrow tear strips cannot tear through the tear resistant film exhibiting a fracture propagation tear resistance greater than 20 N / ply in a state where the opening can be controlled. . In contrast, the tearable tape strip 110 according to the present invention surprisingly tears each of the above-listed films in a controllable manner so that the package 102 takes advantage of the tear resistant film 108. I knew it was possible. Prior art configurations utilize fragile and highly tearable films (eg, BOPP), require a separate cutting tool to open the package, or weaken the film in the area of the tear strip (For example, perforations are provided), so this extremely useful package cannot be obtained.
[0044]
The package 102 described above (including the tear resistant film 108) can contain a variety of different articles. In one embodiment, the article 104 includes a plurality of books 130 and cardboard pads 132, as shown in FIGS. 8A and 8B. A plurality of books 130 are stacked on a cardboard pad 132, as is commonly done in transportation and handling operations. The plurality of books 130 may be various sizes and shapes as shown in FIGS. 8A and 8B, or may be the same. The pad 132 is preferably a cardboard material and is provided to support a plurality of books 130 during transport. However, other than that, the pad 132 may be formed from a different material, may have other shapes and sizes, or may be completely removed.
[0045]
In one preferred embodiment, the packaged goods 100 are assembled by first securing a tearable tape strip 110 to the surface of the film 108. With particular reference to FIG. 9A, the film 108 generally defines an inner surface 140 and an outer surface 142 (the outer surface 142 is “exposed” in FIGS. 8A and 8B). With this orientation in mind, the tearable tape strip 110 is preferably secured to the inner surface 140 using an adhesive 144 or the like (generally shown in FIG. 9A). Adhesive 144 can take a variety of forms, but is preferably a pressure sensitive adhesive known in the art. Nevertheless, the tearable tape strip 110 is applied to an area of the film 108 that has not been otherwise weakened. That is, unlike other heavy duty packaging applications where the subject packaging material is perforated or weakened in the area of the tearable tape strip or tear strip as previously described, The prototype is kept opposite the possible tape strip 110. In this configuration, the package 102 is less prone to defects associated with prior art weakened packaging materials.
[0046]
In a preferred embodiment, only one tearable tape strip 110 is required. As previously mentioned, the internal tear characteristic of the tearable tape strip 110 is sufficient to controllably tear the film 108. In addition, referring to FIG. 9B, the second tearable tape strip 146 can be secured to the film 108 substantially opposite the tearable tape strip 110 (ie, on the outer surface 142). Preferably, the tearable tape strips 110, 146 are aligned. However, besides that, as shown in FIG. 9B, the tearable tape strips 110, 146 can be offset from each other. More specifically, any of the tearable tape strips 110, 146 can be torn inside, each defining a width. At least a portion of the width of the tearable tape strip 110 overlaps at least a portion of the width of the second tearable tape strip 146. In this orientation, a single band component (identified as “B” in FIG. 9B) can be simultaneously torn inside both tearable tape strips 110, 146. Alternatively, a cover tape such as 373 Scotch® High Performance Box Sealing Tape (available from 3M) can be used in place of the second tearable tape strip 146.
[0047]
Returning to FIGS. 8A and 8B, after applying the tearable tape strip 110, a notch 150 is provided through the tearable tape strip 110 and the film 108, and a tab is formed at the tip 154 of the tearable tape strip 110. 128 is defined. In the preferred embodiment, the cut 150 is provided by die cutting, but other cutting methods are equally applicable. Although three incisions 150 are shown in FIG. 8A, any other number larger or smaller may be equally acceptable. Regardless, the end user (not shown) uses the tab 128 as a thumb to initiate tearing of the tearable tape strip 110.
[0048]
Next, the film 108 is formed so as to define the sealed area 106 in which the article 104 is accommodated. In a preferred embodiment, a shrink wrap method known in the art is utilized. For example, the film 108 is wrapped around the article 104 (including the book 130 and the pad 132) and the opposing ends are sealed and integrated. The packaged product 100 is then passed through a heat tunnel (not shown), causing the film 108 to shrink tightly around the article 104. For example, if the film 108 is a polyethylene material, the heat shrinkage of the film 108 can be performed at 250 ° C. for about 6 seconds, such as in a heat shrink forced air oven. In addition, the heat shrink process can be performed at other temperatures and / or times. Using a preferred heat shrink technique, the film 108 is substantially aligned with the shape of the article 104 and undesired movement or movement of the article 104 during transport (eg, relative movement of one or more books 130 relative to the pad 132). To prevent.
[0049]
The package 102 is opened (ie, changed from the sealed state of FIG. 8A to the opened state of FIG. 8B) by simply pinching the tab 128 of the tearable tape strip 110 and pulling it away from the package 102. . By this tearing action, the unsealed portion 160 is torn through the film 108 in a controllable state. For example, the tab 128 is shaped to define a starting point of separation between the central section 120 and the opposite side 122. When the central section 120 is torn from the opposite side 122, the portion of the film 108 that has been secured to the central section 120 by other means becomes the portion of the film 108 that has been secured to the opposite side 122 by other means. Torn against. Thus, this preferred “inner tear” unique to the tearable tape strip 110 provides controlled tearing of the film 108 and prevents unwanted tear propagation from the central section 120 by the opposing side 122, As the film 108 in place is strengthened, applying a relatively small tensile force to the tab 128 can produce a very limited tear force (greater than the tear strength of the film 108). Further, the inherent tear of the tearable tape strip 110 overcomes the inherent stretch properties of the film 108. That is, by securing or bonding the film 108 to each of the central section 120 and the opposite side 122, the expansion and contraction of the film 108 is constrained by the tearable tape strip 110.
[0050]
After molding, the opening portion 160 allows the end user to access the article 104 contained in the film 108. In this regard, tearing of the tearable tape strip 110 continues until the opening 160 is large enough to remove at least a portion of the article 104, eg, one of the books 130.
[0051]
As previously mentioned, in a preferred embodiment, a single tearable tape strip 110 is secured to the inner surface 140 (FIG. 9A) of the film 108. In this orientation, the film 108 is more easily torn when an outward tensile force is applied to the tab 128. Still referring to FIG. 8A, in a preferred embodiment, only one tearable tape strip 110 is required, so an indication 162 is formed on the outer surface 142 opposite the tearable tape strip 110. be able to. The display 162 can take a variety of forms (eg, alphanumeric characters, images, logos, barcodes, etc.) and is preferably printed on the outer surface 142 using known techniques. As shown in FIG. 8A, a single tearable tape strip 110 does not obscure the display 162. However, it will be appreciated that the display 162 can be omitted, that is, not a required element.
[0052]
As previously mentioned, the article 104 can take a variety of forms other than those shown in FIGS. 8A and 8B. For example, FIG. 10 shows another embodiment of a packaged product 170 that includes a package 172 and an article 174. The package 172 defines a sealed area 176 in which the article 174 is accommodated.
[0053]
Package 172 is very similar to previously described package 102 (FIG. 8A) and includes a continuous tear resistant film 178 and a tearable tape strip 180. The tearable tape strip 180 is preferably secured to the inner surface of the film 178 (hidden in FIG. 10) and configured to tear the tearable tape strip 180 and tear the film 178 in a controllable manner. Is done. As shown in FIG. 10, a series of cuts 182 are provided through the tearable tape strip 180 and film 178 to define first and second tabs 184a, 184b. In addition, only one tab 184a, 184b can be formed and arranged at a position other than that shown.
[0054]
Article 174 includes a plurality of canisters 190 and a tray 192. The plurality of canisters 190 can take various forms such as beverage cans and may or may not be the same. The tray 192 is preferably made from cardboard material and supports a plurality of canisters 190. In addition, the tray 192 can take other forms and can be completely removed.
[0055]
As with the previously described packaged item 100 (FIG. 8A), the film 178 is preferably shrink wrapped around the article 174 so that the film 178 substantially conforms to the shape of the article 174. To do. As part of the shrink wrapping process, typically openings 194 (one of which is shown in FIG. 10) are formed by film 178 on opposite sides. Thus, the film 178 does not necessarily need to include the entire article 174. However, a plurality of canisters 190 in tray 192 are secured by package 172 using a preferred shrink wrap method. Further, by using a tear resistant material for the film 178, the packaged goods 170 can withstand the harshness associated with normal transportation and handling.
[0056]
The end user can easily open the package 172 without requiring the use of a separate cutting tool. The user need only pinch one or both of the tabs 184a, 184b and pull outward. Again, tabs 184a, 184b are configured to initiate an internal tear within tearable tape strip 180. As a result, the tearing action penetrates the film 178 and tears the unsealed portion (not shown) in a controllable manner, allowing access to the article 174, eg, one of the plurality of canisters 190. Thereafter, part or all of the article 174 can be removed from the package 172 having an opening.
[0057]
Yet another embodiment of a packaged product 200 is shown in FIG. As in the previous embodiment, the packaged product 200 includes a package 202 and an article 204. The package 202 defines a sealed area 206 in which the article 204 is accommodated.
[0058]
Package 202 is similar to that previously described and includes a continuous tear resistant film 208 and a tearable tape strip 210. The tearable tape strip 210 is preferably secured to the inner surface of the film 208 (hidden in FIG. 11). In addition, a series of cuts 212 are provided through the tearable tape strip 210 and the film 208 to define first and second tabs 214a, 214b. In addition, it is possible to form only one tab 214a, 214b and arrange it at a position other than that shown in FIG.
[0059]
Article 204 includes a chair 220 and a tray 222. The tray 222 is preferably formed from cardboard material and holds the chair 220.
[0060]
As in the previous embodiment, preferably, the film 208 is shrink wrapped around the article 204 so that the film 208 substantially matches the shape of the article 204. In this preferred configuration, the package 202 provides a tight coupling of the chair 220 to the tray 222 so that the article 204 can be handled more easily.
[0061]
Simply squeezing one or both of the tabs 214a, 214b and applying a tensile force opens the packaged product 200. Also in this case, the tearable tape strip 210 is torn inward by this tensile force, and as a result, an opening (not shown) is torn through the film 208. The tearable tape strip 210 is torn to the extent necessary to remove the chair 220 from the package 202.
[0062]
Yet another embodiment of a packaged product 230 is shown in FIG. As in the previous embodiment, the packaged product 230 includes a package 232 and an article 234. Package 232 defines a sealed area 236 in which article 234 is accommodated.
[0063]
Package 232 includes a continuous tear resistant film 238 and a tearable tape strip 240. The tearable tape strip 240 is preferably secured to the inner surface of the film 238 (hidden in FIG. 12). In addition, a series of cuts 242 are formed through the tearable tape strip 240 and the film 238 to define a tab 244 that forms an inner tear initiation point through the tearable tape strip 240. In addition, a plurality of tabs 244 may be provided and / or placed at other locations along the tearable tape strip 240.
[0064]
In the embodiment of FIG. 12, article 234 includes a machine part 250 (shown in simplified block form) and a pad 252. As is known in the art, pad 252 supports part 250 during transport. In addition, a plurality of parts 250 can be provided and / or different items can be used in place of part 250.
[0065]
Preferably, the film 238 is skin wrapped around the article 234. Skin wrapping techniques are known in the art so that film 238 adheres to pad 252 and substantially conforms to the shape of component 250.
[0066]
Package 232 is opened by first pinching tab 244 and then pulling outward. This operation creates an inner tear in the tearable tape strip 240, resulting in tearing of the opening (not shown) through the film 238.
[0067]
Continue tearing the tearable tape strip 240 on the film 238 until the opening (not shown) is large enough to easily remove the part 250. In particular, a conventional narrow tear strip can be utilized to tear through a cardboard or paperboard pad 252. However, such a design will cause the pad 252 to become soiled or destroyed, and therefore any display located thereon to be soiled or destroyed. In contrast, because the package 232 of the present invention only tears the film 238, the pad 252 remains intact.
[0068]
Yet another embodiment of a packaged product 260 is shown in FIG. The packaged product 260 includes a package 262 and an article 264. Package 262 defines a sealed area 266 in which article 264 is accommodated.
[0069]
The package 262 is similar to that of the previous embodiment and includes a continuous tear resistant film 268 and a tearable tape strip 270. Preferably, the tearable tape strip 270 is secured to the inner surface of the film 268 (hidden in FIG. 13). In addition, a series of cuts 272 are provided through tearable tape strip 270 and film 268 to define tab 274. In addition, a plurality of tabs 274 may be provided and / or placed at locations other than those shown. Again, the tab 274 creates an inner tear start point in the tearable tape strip 270 and provides a surface for the user to pinch.
[0070]
Article 264 includes food 280. In one embodiment of FIG. 13, food product 280 is half-cut ham. Other meats (eg ground beef, chicken), seafood (eg fish, shrimp, etc.), dairy products (eg cheese, buttersticks, etc.), baked goods (eg cakes, bread, etc.) A variety of other foods are acceptable as well, but these are just a few examples. The food product 280 shown in FIG. 13 is a single commodity, but multiple food products that may be the same or different may be provided and / or placed in a support tray. In addition, although not shown, a lightweight easily tearable barrier film that is allowed to contact food such as cellophane is wrapped around food 280 (ie, between food 280 and film 268), It is also possible to maintain freshness. Alternatively or in addition, a cover tape or tab may be placed on the outside to cover the cut 272 so that moisture and / or air does not contact the food 280.
[0071]
As in the previous embodiment, the film 268 is preferably wrapped tightly around the article 264. The food 280 can be removed from the package 262 by tearing the tearable tape strip 27, ie, by tearing the film 268 as described above.
[0072]
The package and packaged goods of the present invention offer significant improvements over conventional designs. First, a continuous tear resistant film is utilized to protect and secure the contained articles during transport. The tear resistance of the film minimizes package damage. Furthermore, because of the tearable tape strip, the package can be easily opened without the need for using a separate cutting tool. Thus, the use of this package avoids the inconvenience, safety, and product damage issues commonly seen when opening tear-resistant film packages with a cutting tool. Finally, the package provides end-user evidence of tampering.
[0073]
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention. For example, only a few articles have been described in which the package of the present invention would be useful. A virtually unlimited number of articles can be packaged, such as one or more products that are regular or irregular in shape.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a tape of the present invention.
FIG. 2 is a perspective view of the tape of FIG. 1 applied to a container.
FIG. 3 is a partial perspective view of another embodiment of a tape applied to a container.
FIG. 4 is a cross-sectional view of a tape according to another embodiment of the present invention.
FIG. 5 is a cross-sectional view of a tape according to another embodiment of the present invention.
FIG. 6 is a cross-sectional view of a container according to another embodiment of the present invention.
7 is a perspective view of the container of FIG. 6. FIG.
FIG. 8A is a perspective view of a packaged product according to another embodiment of the present invention in a sealed state.
8B is a perspective view of the packaged product of FIG. 8A in an opened state.
9A is an enlarged cross-sectional view of a portion of the packaged product of FIG. 8A.
FIG. 9B is an enlarged cross-sectional view of a portion of another packaged product.
FIG. 10 is a perspective view of another packaged product according to another embodiment of the present invention.
FIG. 11 is a perspective view of another packaged product according to another embodiment of the present invention.
FIG. 12 is a perspective view of another packaged product according to another embodiment of the present invention.
FIG. 13 is a perspective view of another packaged product according to another embodiment of the present invention.

Claims (6)

  1. A package for containing an article,
    A continuous tear resistant film that can be shaped to define a sealed area for containing articles;
    A tearable tape strip secured to the film;
    With
    A notch is disposed through both the tear resistant film and the tearable tape strip and is opened through the film to tear the tearable tape strip and access the sealed area. A package wherein the tearable tape strip is configured to tear a portion and the film has a fracture propagation tear resistance greater than 20 N / ply.
  2.   The film is polyethylene, linear low density polyethylene, low density polyethylene, Surlyn® ionomer film, Kraton® / polypropylene blend, copolymer of propylene and ethylene, blend of polypropylene and polyethylene, nylon, poly The package of claim 1 comprising a material selected from the group consisting of vinyl chloride and polyvinylidene chloride.
  3.   The package of claim 1 or 2, wherein the film defines an inner surface and an outer surface, and the tearable tape strip is secured to the inner surface.
  4.   The tearable tape strip is defined by opposing longitudinal edges and a central section, the central section being tearable relative to the opposing longitudinal edges, whereby the tearable tape strip The package according to claim 1, wherein the package can be torn inside.
  5.   The package according to any one of claims 1 to 4, wherein only one tearable tape strip is provided.
  6. The tearable tape strip is a first tearable tape strip configured to be tearable on the inside and secured to the inner surface of the film, and the package further comprises the first A second inner tearable tape strip secured to the outer surface of the film substantially opposite the tearable tape strip of
    At least a portion of the width of the first tearable tape strip overlaps at least a portion of the width of the second tearable tape strip so that a single band is integrally formed from both of these tearable tape strips. The package according to any one of claims 1 to 4, wherein the components can be torn.
JP2002546003A 1998-05-28 2001-03-30 Plastic film package with tearable tape strip Expired - Fee Related JP4927308B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09/728,697 US20010000480A1 (en) 1998-05-28 2000-12-01 Plastic film packaging with tearable tape strip
US09/728,697 2000-12-01
PCT/US2001/010165 WO2002044052A1 (en) 2000-12-01 2001-03-30 Plastic film packaging with tearable tape strip

Publications (2)

Publication Number Publication Date
JP2004514616A JP2004514616A (en) 2004-05-20
JP4927308B2 true JP4927308B2 (en) 2012-05-09

Family

ID=24927934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002546003A Expired - Fee Related JP4927308B2 (en) 1998-05-28 2001-03-30 Plastic film package with tearable tape strip

Country Status (7)

Country Link
US (1) US20010000480A1 (en)
EP (1) EP1353859A1 (en)
JP (1) JP4927308B2 (en)
AU (1) AU5111601A (en)
BR (1) BR0115796A (en)
CA (1) CA2436838C (en)
WO (1) WO2002044052A1 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6513657B2 (en) * 2001-04-26 2003-02-04 3M Innovative Properties Co. Product packaging with handle-forming tearable tape system
FR2841223B1 (en) * 2002-06-19 2004-10-15 Sleever Int Packaging for objects (s) of heat shrinkable material with essentially smooth internal or external side
US9150342B2 (en) 2003-04-16 2015-10-06 Intercontinental Great Brands Llc Resealable tray container
US7216764B2 (en) * 2004-08-16 2007-05-15 Sealstrip Corporation Easy-open packages
US8202559B2 (en) 2004-08-18 2012-06-19 Progressive Produce Corporation Microwave vegetable preparation
US20130205723A1 (en) * 2004-09-15 2013-08-15 Cummins-Allison Corp. System, method and apparatus for automatically filling a coin cassette
US8469193B2 (en) * 2004-12-23 2013-06-25 Worldwise, Inc. Vacuum activated shipping container
US20060263492A1 (en) * 2005-05-04 2006-11-23 Daniel Whittles Produce packaging system and method of use
ITTO20050471A1 (en) * 2005-07-08 2007-01-09 Soremartec Sa Food-product packaging
DE102005048826B3 (en) * 2005-10-10 2007-04-12 Infineon Technologies Ag Semiconductor component has pretensioned double-sided adhesive foil between back of semiconductor chip and chip connecting surface with circuit carrier to separate into individual areas without tools
US7654577B2 (en) * 2005-11-23 2010-02-02 Meadwestvaco Corporation Notepad system for holding and dispensing various sized notepads
US8689977B2 (en) * 2006-02-24 2014-04-08 Dixie Consumer Products Llc Product and method for dispensing and packaging items having complementary components
US20070235357A1 (en) * 2006-04-11 2007-10-11 Perell William S Edge voids in a wrapped container for creating loose tear-away material
US7963413B2 (en) * 2006-05-23 2011-06-21 Kraft Foods Global Brands Llc Tamper evident resealable closure
US8308363B2 (en) 2006-05-23 2012-11-13 Kraft Foods Global Brands Llc Package integrity indicator for container closure
US7673788B2 (en) 2006-08-16 2010-03-09 Mario Calabretta Package opening device
US20080056622A1 (en) * 2006-08-18 2008-03-06 Andrew Austreng Resealable package with tamper-evident structure and method for making same
US7331153B1 (en) 2006-08-31 2008-02-19 Sealed Air Corporation (Us) Apparatus and method for creating easy to open packages
US8114451B2 (en) 2006-12-27 2012-02-14 Kraft Foods Global Brands Llc Resealable closure with package integrity feature
US20080175961A1 (en) * 2007-01-24 2008-07-24 Phaselocd, Inc. Packaged-corn-on-the-cob
US8408792B2 (en) 2007-03-30 2013-04-02 Kraft Foods Global Brands Llc Package integrity indicating closure
US20090238501A1 (en) * 2008-03-24 2009-09-24 Minkler Douglas J Pallet Hood Tear Tape
US20100018974A1 (en) 2008-07-24 2010-01-28 Deborah Lyzenga Package integrity indicating closure
GB0819200D0 (en) 2008-10-20 2008-11-26 Cadbury Holdings Ltd Packaging
WO2010046617A1 (en) * 2008-10-21 2010-04-29 Medicart International Limited Medical equipment storage and transportation kit
PL2347971T3 (en) 2010-01-26 2012-11-30 Generale Biscuit Resealable packaging for food products and method of manufacturing
PL2368811T3 (en) 2010-03-23 2012-11-30 Generale Biscuit Resealable packaging for food products and method of manufacturing
AU2011255575A1 (en) 2010-05-18 2012-12-06 Intercontinental Great Brands Llc Reclosable flexible packaging and methods for manufacturing same
US9656783B2 (en) 2010-05-18 2017-05-23 Intercontinental Great Brands Llc Reclosable flexible packaging and methods for manufacturing same
PL2686251T3 (en) 2011-03-17 2015-10-30 Intercontinental Great Brands Llc Reclosable flexible film package, laminate, method and apparatus for manufacture
DE102011075313A1 (en) * 2011-05-05 2012-11-08 Tesa Se Adhesive tape system for forming a tear strip
US20140231493A1 (en) * 2013-02-15 2014-08-21 Delkor Systems, Inc. Package Assembly with Tear Away Film and Manufacturing System
US8851279B1 (en) * 2013-10-24 2014-10-07 Fragrance Marketing, LLC Product marketing magazine rider
GB2522190B (en) * 2014-01-13 2017-10-04 Essentra Packaging & Security Ltd Label
US10617244B1 (en) * 2015-04-16 2020-04-14 Aron J. LANTZ Easymeal food and drink dispensing device
US20160305707A1 (en) * 2015-04-17 2016-10-20 Frank Healy Cooling Apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0444977A (en) * 1990-06-11 1992-02-14 Okada Shigyo Kk Reheating receiver for cooked food and cooking method using the same
JPH09207948A (en) * 1996-01-31 1997-08-12 Okada Shigyo Kk Packaging bag

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606655A (en) * 1947-10-30 1952-08-12 Milprint Inc Commodity dispensing package and wrapper therefor
GB756199A (en) * 1953-07-03 1956-08-29 Milprint Inc Improvements in or relating to the art of packaging
US3088379A (en) * 1959-04-13 1963-05-07 Union Carbide Corp Method for application of tear tape
US3187982A (en) * 1960-07-21 1965-06-08 Union Carbide Corp Method for forming coated uniaxially oriented films and the product formed thereby
US3179326A (en) * 1960-07-21 1965-04-20 Union Carbide Corp Method for forming uniaxially oriented films and the product formed thereby
US3403840A (en) * 1965-11-03 1968-10-01 Procter & Gamble Opening device for packages wrapped with shrinkable plastic films
JPS62109774A (en) * 1985-11-06 1987-05-20 Du Pont Opening device for shrink film package
DE9201916U1 (en) * 1992-02-14 1992-04-09 Windmoeller & Hoelscher, 4540 Lengerich, De
US5885630A (en) * 1996-09-20 1999-03-23 Wm. Wrigley Jr. Company Multiflavor gum packaging system using a volatile-flavor adsorber
FR2763921B1 (en) * 1997-05-30 1999-07-09 Sleever Int Object packaging wrap of heat shrinkable material with circumferential pulling strip
BR9910741A (en) * 1998-05-28 2001-02-13 3M Innovative Properties Co Container for storing items and tape for use in container closure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0444977A (en) * 1990-06-11 1992-02-14 Okada Shigyo Kk Reheating receiver for cooked food and cooking method using the same
JPH09207948A (en) * 1996-01-31 1997-08-12 Okada Shigyo Kk Packaging bag

Also Published As

Publication number Publication date
CA2436838C (en) 2009-12-22
US20010000480A1 (en) 2001-04-26
WO2002044052A1 (en) 2002-06-06
BR0115796A (en) 2003-08-19
AU5111601A (en) 2002-06-11
EP1353859A1 (en) 2003-10-22
CA2436838A1 (en) 2002-06-06
JP2004514616A (en) 2004-05-20

Similar Documents

Publication Publication Date Title
JP5695108B2 (en) Package integrity indication closure and package integrity mechanism
ES2584432T3 (en) Flexible container repeatedly closable and manufacturing methods
US9656783B2 (en) Reclosable flexible packaging and methods for manufacturing same
ES2555259T3 (en) Easy-opening flexible film packaging products and manufacturing methods
AU2014249394B2 (en) Package opening feature and methods of manufacturing same
EP2571781B1 (en) Easy open and reclosable flexible film packaging products and methods of manufacture
EP2942290B1 (en) Reclosable flexible film package and method of manufacture
AU2009306181B9 (en) Packaging
CA2610701C (en) Improved multi-layer flexible package with removable section
US20160176602A1 (en) Easy open ream wrap
EP2094580B1 (en) Reclosable packages for confectionery products
US5885673A (en) Peelable pouch-like packaging for photographic sheet film
US7073666B2 (en) Tampon package and method for making same
CA2290964C (en) Package with a smooth, gas-permeable substrate on its bottom
EP2189506B1 (en) Cartons with a strip of adhesive tape for reinforcing, in particular in the area of punches as well as tear strips
US6003670A (en) Abuse resistant flexible package
US6610338B2 (en) Easy tearing bags and packaging material
US3613874A (en) Reclosable package
EP1007440B1 (en) Package with shrink film lid having a tab to facilitate peeling
US4401213A (en) Container strip having inserts
CA2039594C (en) Easy-open recloseable peggable package
US5326023A (en) Dough container with preweakened non-peel label
US4823961A (en) Reclosable package
US6248380B1 (en) Package having a dual-film lid comprising a gas-impermeable film and a delaminatable, gas-permeable film
DE602005000086T2 (en) Easy-to-open packaging

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080312

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080312

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110111

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110118

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20110415

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20110422

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110708

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120110

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120209

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150217

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees