CN101437680A

CN101437680A - Web materials with active agent for use in forming reclosable packages

Info

Publication number: CN101437680A
Application number: CNA2007800161957A
Authority: CN
Inventors: T·R·托马斯; N·A·克洛维奇; C·E·卡佩尔
Original assignee: Pactiv LLC
Current assignee: Pactiv LLC
Priority date: 2006-05-05
Filing date: 2007-03-06
Publication date: 2009-05-20
Also published as: WO2007130735A1; EP2021178A1; CA2648262A1; US20060291756A1; MX2008014144A

Abstract

Web materials for use in forming reclosable packages generally include a first material layer made of a barrier material, and an active agent carried by the first material layer. When embodied as a bag, the web is used to form at least one of the body panels of the bag, with a pair of opposing body panels joined together along a pair of opposing sides, with a bottom bridging the sides in order to define a compartment between the opposing body panels. The active agent is disposed on the first material layer so as to be in communication with the compartment.

Description

Be used to constitute the Web materials that contains activating agent of reclosable packages spare

MULTIPLE-BLADE

The application be all submit on February 10th, 2005, current just on the docket be numbered 11/055,575 and 11/055, the part of 574 U.S. Patent application continues, and be submit on February 26th, 2003, current just on the docket be numbered 10/375, the part of 188 U.S. Patent application continues, and the rights and interests that are numbered 60/359,874 U.S. Patent application that require to submit on February 27th, 2002 according to 35U.S.C. § 119 (e).U.S. Patent application 11/055,575 and 11/055,574 are numbered 60/543 according to what 35 U.S.C. § 119 (e) also required to submit on February 10th, 2004 separately, 344 U.S. Patent application and be numbered 60/543, the two rights and interests of 345 U.S. Patent application, the application also requires the priority of the two.

Each aforementioned application all is incorporated herein by reference clearly.

Technical field

The present invention relates to Web materials (web material), and relate more specifically to be used to constitute the Web materials of package, and in described package used structure and the method for release bioactive agent.More particularly, for example, the present invention relates to such as freshness-prolongation agent, odor management agent, reach the activating agent of other function reagent and so on, and the structure and the method that discharge described activating agent, for example, this structure and method in order to the freshness that prolongs perishable farm products and management or control with place described package in the relevant smell of described product.

Background technology

Package has obtained extensive approval in family and industrial extensive application.For instance, commercial unit and consumer use lapping, satchel and container with storage perishable farm products and article usually.Illustrate again, use satchel or lining thing to collect rubbish or refuse usually with family in the industrial environment.

Such as the lid that has cooperation or with the food container of hinged lid, and the package that has a reclosable of pinching satchel of promptly closing fastener or slide fastener and so on is very easily to the supplier and the consumer of the perishable farm products of pre-packing, described perishable farm products especially refers to the product such as pork luncheon meat and cheese, wherein, usually, only use the part of described product at arbitrary special time.In addition, perishable farm products often is contained in the packaging material and in the container such as tray, uses film overwrap or cover material with airtight container on it.For instance, described container is generally used for packing in advance the food such as meat and cheese, perhaps is used for storing by the consumer.Though for its intended purposes, be enough, need provide Web materials for described package with the quality that can prolong the product pot-life in the package.

Package such as thermoplasticity satchel or lining is also usually as refuse or refuse bag.Usually, described satchel becomes the structure structure of opening to form by having two layers of thermoplastic web layer or thin layer along the connection of three limits and along quadrangle.Also need for litter bag or refuse bag provide efficient, can provide and effectively smell control.

The Web materials that is used to make aforementioned and other package generally is made up of extruded polymer.As used herein, term ＂ fibre web ＂ comprises various thin material structures, such as film, sheet material or the like.Described Web materials can be used for making packing or cover cap (lidding) material by raw material form (stock form).Perhaps, Web materials can use in forming process, and such as the thermoforming process that is formed with the type container, perhaps heat seal process is to form the flexible container such as satchel.With regard to packaging material, generally need sticky material or adhesion coating.With regard to cover material, generally need to promote the material of heat-sealing or can otherwise, be bonded in the material of another kind of material for example by means of adhesive.

Summary of the invention

The material that the application discloses package and made the described package with activating agent.

According to the present invention, the Web materials that is provided has first material layer that is made of barrier material and the activating agent of the first material layer load.As used herein, term " fibre web " generally comprises the material structure of the relative thin such as film, sheet material etc.In some cases, used as the application, the ＂ fibre web ＂ that provides can be a continuous sheet of having processed or stood material processed, or its part, such as the form with sheet material or sheet material.Fibre web thickness can be 0.2 mil-100 mil.Just be used for regard to the flexible package the satchel, preferred thickness is 0.7 mil-6 mil.With regard to being used for more rigid container, preferred fibre web thickness is 8 mils-100 mils.With regard to regard to packaging material, preferred thickness is 0.5 mil-1.5 mil, and with regard to regard to the cover cap material, preferred thickness is 1 mil-15 mil.Used as the application, 1 mil equals 1/1000 inch.

Preferably, the barrier material of ground floor can suppress water and/or activating agent by its transfer.At this point specifically, preferred barrier material can stop the solid of water and activating agent, the transfer of liquids and gases form.Usually, the barrier material that demonstrates antioxygen diffusion also demonstrates impedance activating agent steam by its diffusion.

Activating agent can place on first material layer, such as in the coating that applies thereon, perhaps can flood or otherwise is attached in first material layer.If activating agent places on first material layer with coating form, then this coating can be by means of spraying, by means of first material layer being immersed activating agent, and, printing bonding by static state, co-extrusion, non-electro-deposition (electrolessdeposition), curtain coating, vapour deposition, welding and/or embedding method form or apply.Printing can comprise any suitable method, such as using galley, cylinder, brush or ink-jet.

According to a further aspect in the invention, activating agent can striped or the form of pattern place on first material layer.This striped can be used as coating and uses, and is total to-extrusion molding with first material layer, perhaps as independently layer use.This pattern can comprise sign, striped, lattice, point etc.This pattern can extend basically and spread all over whole of first material layer, perhaps can only be coated on presumptive area, itself can be the form of striped or band.

If activating agent is attached in the Web materials, can use each of various applicable technologies.For instance, activating agent can microencapsulation form arranges, perhaps for example, by with the co-extrusion of the barrier material of first material layer.

For instance, activating agent can be selected from freshness-prolongation agent, antimicrobial, odor management agent, color indicator, the indicator that addles, aromatic and combination thereof.

According to the present invention, Web materials can comprise second material layer with predetermined material performance.Described material property can comprise and clings characteristic and/or sealing characteristics.Can give above-mentioned characteristic by the method for making the Web materials second layer by one or more materials that are fit to.

In addition or alternatively, second material layer can be permeable to activating agent and/or water, and can be hydrophilic.In this way, activating agent can place in the intermediate layer between first material layer and second material layer.The release of activating agent and/or preparation can be subjected to the influence that water imports.

Alternatively, second material layer can be made by barrier material, and can extract out from first material layer.Also according to the present invention, the arranged in form that Web materials can be rolled up.

Web materials of the present invention can be made into cover cap material or lapping, based on the ground floor material that is provided.Alternatively, Web materials can form package or its main body panel at least.For instance, some package comprises a pair of relative main body panel, and this main body panel links together along a pair of relative side and the bottom of this side of bridging; Reclosable fastener along the opening pulling, this opening is relative with the bottom; And at least a activating agent.Disclosed some other package of the application is mold container hard or half-hard, wherein it film cover cap (film lid) or full parcel (over wrap) have been used, and in other embodiments, package is the packaging material that being used to such as food Package wrap up perishable.In other embodiments, described lapping can be used for protection and preserves agricultural product, such as the pallet that is applied to the product of just having gathered in the crops with the form of wrapping up, or the like.

According to a further aspect in the invention, the satchel that is provided comprises a pair of relative main body panel, and wherein at least one main body panel is made of Web materials.A pair of relative main body panel links together along a pair of relative side and the bottom of bridging two sides, thereby determines compartment between two relative main body panel.The Web materials that forms at least one main body panel comprises first material layer of being made by barrier material, and the activating agent of the first material layer load, and this activating agent contacts with the space.Opening determines between a counter plate, and is relative with the bottom, and the form that activating agent can striped places opening part.Further, arbitrary optional attribute of more than setting forth can be in conjunction with entering in this one side of the present invention.

These and other feature of package disclosed in this invention can be by being understood with reference to following detailed description and accompanying drawing more fully.Accompanying drawing is not to draw in proportion, just shows relative size.

Description of drawings

Fig. 1 is the profile according to the opening portion of the package of the described reclosable of one embodiment of the invention or satchel, and this package or satchel have the relative main body panel that partly links to each other with each fin;

Fig. 2 is the perspective view according to the package of the reclosable of another embodiment opening portion that the described Fig. 1 of comprising paints, wherein the fastener of reclosable or the slide fastener disposable peelable element that has the slide block device of opening and partially open;

Fig. 3 a is that this package or satchel comprise the single polymer layer structure according to the partial sectional view of a side of the package of the described reclosable of one embodiment of the invention or satchel;

Fig. 3 b is that this package or satchel comprise the two layers of polymers structure according to the partial sectional view of a side of the package of the described reclosable of one embodiment of the invention or satchel;

Fig. 3 c is the partial sectional view according to a side of the package of the described reclosable of one embodiment of the invention or satchel, and this package or satchel comprise three strata laminate structures;

Fig. 3 d is the partial sectional view according to a side of the package of the described reclosable of another embodiment of the invention or satchel, and this package or satchel comprise ELECTRODE WITH BILAYER POLYMERIC thing structure;

Fig. 4 is the partial sectional view according to a side of the package of the described reclosable of another embodiment of the invention or satchel;

Fig. 5 is the partial sectional view according to a side of the package of the described reclosable of another embodiment of the present invention or satchel;

Fig. 6 is the partial sectional view according to a side of the package of the described reclosable of another embodiment more of the present invention or satchel;

Fig. 7 is the partial sectional view according to a side of the package of the described reclosable of another embodiment more of the present invention or satchel;

Fig. 8 is the partial sectional view according to a side of the package of the described reclosable of another embodiment of the invention or satchel;

Fig. 9 a is the partial sectional view according to a side of the package of the described reclosable of one embodiment of the invention or satchel, and this package or satchel comprise four strata laminate structures;

Fig. 9 b is the partial sectional view according to a side of the package of the described reclosable of one embodiment of the invention or satchel, and this package or satchel comprise six strata laminate structures;

Figure 10 a is the partial sectional view according to the two sides of the package of the described reclosable of one embodiment of the invention or satchel, and this package or satchel comprise two polymer architectures, and each polymer architecture comprises two-layer;

Figure 10 b is the partial sectional view according to the two sides of the package of the described reclosable of another embodiment of the invention or satchel, and this package or satchel comprise two polymer architectures, and each polymer architecture comprises two-layer;

Figure 10 c is the partial sectional view according to the two sides of the package of the described reclosable of one embodiment of the invention or satchel, and this package or satchel comprise two polymer architectures, and each polymer architecture comprises three layers;

Figure 11 a is the partial sectional view of the two sides of the package of reclosable or satchel, and this package or satchel have the polymer architecture that places therebetween, and wherein polymer architecture comprises disposable peelable element;

Figure 11 b is depicted as the package or the partial sectional view of satchel after disposable peelable element is opened of the reclosable of Figure 11 a;

Figure 12 a is the partial sectional view of the two sides of the package of reclosable or satchel, and wherein a side comprises and comprises two-layer polymer architecture, and wherein polymer architecture is connected with opposite side by removable element;

Figure 12 b is depicted as the package or the partial sectional view of satchel after removable element removes of the reclosable of Figure 12 a;

Figure 13 is according to the axonometric drawing of an embodiment of Web materials of the present invention, comprises double-decker;

Figure 14 is according to the axonometric drawing of another embodiment of Web materials of the present invention, comprises three-decker;

Figure 15 and 16 is respectively according to the axonometric drawing of another embodiment of Web materials of the present invention and end-view, comprises the bar between first and second layers that are embedded in Web materials;

Figure 17 is the axonometric drawing according to another embodiment of Web materials of the present invention, comprises the activating agent that is added in the pattern;

Figure 18 is the axonometric drawing according to another embodiment of Web materials of the present invention, comprises the activating agent that is attached in the part Web materials;

Figure 19 is the axonometric drawing according to another embodiment of Web materials of the present invention, comprises the strip activating agent that is added to Web materials basic unit;

Figure 20 is the axonometric drawing according to another embodiment of Web materials of the present invention, comprises the activating agent that is added in the pattern;

Figure 21 is the axonometric drawing according to another embodiment of Web materials of the present invention, and wherein Web materials is forming the satchel of reclosable;

Figure 22 is the axonometric drawing according to another embodiment of Web materials of the present invention, and the Web materials that wherein has the activating agent bar has formed the satchel of reclosable;

Figure 23 is the axonometric drawing according to another embodiment of Web materials of the present invention, and wherein Web materials comprises a plurality of activating agent bars;

Figure 24 is the axonometric drawing according to another embodiment of Web materials of the present invention, and wherein Web materials comprises central activating agent bar;

Figure 25 is the end-view by the satchel of the formed reclosable of Figure 24 Web materials;

Figure 26 is the axonometric drawing according to another embodiment of Web materials of the present invention, and the Web materials that wherein has activating agent is a cover material.

The specific embodiment

The present invention relates to package, packaging material, be used to make described package and other activating agent is attached to wherein or load relevant Web materials thereon.As above-mentioned, the present invention can be used for various soft and rigid container and packages, such as plastics satchel, refuse bag and lining, hard waste canister, airtight storage container, the food container of reclosable, and the lapping (wraps) and the paillon foil that are generally used for packing, covering or seal perishable items.

According to an aspect of the present invention, the Web materials that is provided comprises the ground floor barrier material of supported active agent on it.In one embodiment, at least a portion of barrier layer definition package body panel.Activating agent can pouch, liner, band or the like form is carried on the barrier layer, perhaps can otherwise print, apply, adhere to or in conjunction with, permeate or be arranged on the ground floor.It is unrestricted as the purpose of illustrations to describe various embodiments.

Used as the application, term ＂ package ＂ can be understood as package or the container that comprises any kind of, such as elastoplast bag and rigid container, and the thin slice, parcel or the cover closing material that are generally used for wrapping up or storing perishable.

Used as the application, term ＂ activating agent ＂ can be understood as and comprise any reagent, composition that enhancing or useful influence are provided, perhaps composition in package or container.Activating agent can comprise and is used to prolong the food that is stored in the package or the freshness or the ＂ of the storage life freshness-prolongation ＂ agent of other perishables, be used to shelter, neutralize, and/or minimizing is from the ＂ odor management ＂ agent of the smell of package, perhaps other function reagent.For instance, activating agent can comprise atmosphere adjusting agent, for example drier, water absorbing agent or gas release agent; Improver, for example reagent of fumet, odor improvers or any other function of enhancing such as suction, insulation or microwave cooking; Suppress or stop the inhibitor of a certain situation, for example anti-agent of addling, antifungal agent, anti-staining agent, fire retardant, anti-UV agent, antifreeze bright agent, perhaps antistatic additive; Perhaps indicator is for example indicated the indicator that food is ripe or addle, and perhaps indicates pollution, temperature, moisture, air pressure to change, perhaps the indicator that special gas or compound exist or for example timing discharges institute's elapsed time in the air pressure; Perhaps otherwise use or be used in combination with this indicator.

As described below, every kind of activating agent of the present invention can be used in combination with the package that Web materials and described Web materials form.For instance, every kind of freshness of the present invention-prolongation agent can be used for suppressing addling of food in package or the packaging material or other perishables, and every kind of odor management agent of the present invention can be used for reducing, neutralize and/or shelters smell from package.Every kind of activating agent of the present invention can or otherwise place on the Web materials so that contact with environment in the package by the Web materials load, for example coating, liner, the pouch to be attached to the package element, perhaps Dai arranged in form; Element extrusion molding with package; Spraying, brushing, coating, lamination or be impressed on the package element; Be penetrated in the package element; And/or spread in the material of package element, such as form with microcapsules.Activating agent can also be by printing by the Web materials load or place on the Web materials, and it is as package, perhaps as the part package, for example aforementioned can be by means of galley, cylinder, brush, perhaps ink-jet realizes.Activating agent can also pass through non-electro-deposition, vapour deposition, curtain coating, heat-sealing or embedding method and arrange.

And unrestricted, Web materials of the present invention can be used for making the polymer satchel that is used to store perishables for the purpose of illustration, and activating agent contacts with the internal environment of described polymer satchel simultaneously.The polymer satchel can be intended for use in consumer's storage food (for example leftover meal) or the commercial Application such as ＂ forms, fills and seal ＂ packaging for foodstuff operation.The polymer satchel can comprise can not closed or reclosable again polymer satchel.The polymer satchel that makes reclosable is generally by the element or the fastener reclosable of reclosable, and described element or fastener are such as re-sealable adhesive or cohesive sealing device, close-fitting track and/or close-fitting groove.Close-fitting track can be opened and pass through with finger pressure or by using the auxiliary equipment closure such as carriage.Some examples of the polymer satchel of reclosable comprise U.S. Pat 5,067,208 and US6,147,588 and publication number be disclosed satchel in 2004/0066985 the U.S. Patent application, its document full content is incorporated herein by reference clearly.Before forming single satchel, these packages are got by the fibre web preparation of material usually, and this material is placed with the form of volume at first.

Further for the purpose of illustration and unrestricted, activating agent of the present invention can also place in the environment of the hard packing spare that is used to store perishables, such as bakery's container, delicatessen's container, fruit and vegetable box, lunch vessel, intermediate processing tray such as those are used for poultry or meat mincing, and the baking container.Some embodiment of container comprise U.S. Pat 6,042,586, US6,257,401, US 6,349,857, US 6,644,494, US 6,845,878 and publication number be disclosed container in US 2004/0074902 and US 2005/0000966 U.S. Patent application, its document full content is incorporated herein by reference clearly.These otherwise can be ＂ clam-shell ＂ type, it has with hinged lid, or can use the Web materials capping such as film external packing or cover material.Above-mentioned external packing and cover cap material can fibre web form provide.The preferred film external packing comprises adhesion coating, so that the film external packing can be used for wrapping up whole package.If cover material is provided, then use processing machine or ＂ cover cap machine ＂ (＂ liddingmachine ＂) that the cover cap material is sealed hard packing spare.Described sealing generally is subjected to the influence of heat sealability and preliminary election material character, but can also comprise the use adhesive.

In addition for the purpose of illustration and unrestricted, odor management agent of the present invention can be used in the environment of the bag, lining and the hard waste canister that are used to collect rubbish or refuse, and other is used to collect in the environment of the container that has the bad smell article such as the clothing that will wash and diaper.Described litter bag can comprise fastens parts, and this is fastened parts and helps closing bag or lining safely; Form a handle and be used to carry bag to be processed or lining; And/or be convenient to bag or the opening of lining.Some embodiment of litter bag comprise that publication number is a disclosed satchel in 2003/0223657 the U.S. Patent application, and its document full content is incorporated herein by reference clearly.

The illustrative embodiment that will describe provides the overall understanding to disclosed package and relevant Web materials and activating agent now.Also unrestricted for the purpose of illustration, the described package of the present invention of context belongs to the polymer satchel of reclosable, and this polymer satchel is made by the Web materials that has activating agent of this theme.Illustrative embodiment is provided in the accompanying drawing.Those those of ordinary skill will appreciate that in this area: each disclosed Web materials, package and/or satchel that has activating agent can be used and improve to be provided for the possible embodiment of other application, and other additive and the improvement can be applied to disclosed Web materials, package and activating agent, do not deviate from the scope of the present disclosure.For instance, the feature of illustrative embodiment can and/or be adjusted to produce other embodiment through combination, separation, exchange.Require described improvement and change to be included in the scope of the present disclosure.

Get back to accompanying drawing now, Fig. 1 describes the opening portion of the package 10 of reclosable, and package 10 has the agent structure (agent structure) 50 that contains activating agent.Agent structure 50 is positioned at below closing device, for example closing device fastener or the slide fastener 14 of reclosable.Fig. 2 shows the package 10 of the reclosable that has opening portion shown in Figure 1, and opening portion is in local open mode.

With reference to Fig. 1 and 2, the opening portion of the package 10 of reclosable comprises a pair of relative first and second main bodys (body) or Wall board (panels) 16,18, and it forms package body 20 and definition inner space 22.Usually, main body or Wall board 16,18 are formed by raw-material fibre web.Before forming main body or Wall board, can provide fibre web some characteristic.Before the package 10 that forms reclosable, can make the fibre web of material have the activating agent that any this paper sets forth.What be connected with first main body panel 16 is first track 24, and track 24 has first side 26 and the first fin part 28, and fin part 28 is extended downwards since first side 26 usually.First main body panel (body panel) 16 has outer surface 16a and inner surface 16b.What be connected with second main body panel 18 is second track 30, and track 30 has second side 32 and the second fin part 34, and fin part 34 is extended downwards since second side 32 usually.Second main body panel 18 has outer surface 18a and inner surface 18b.Inner surface 16b adheres to the first fin part 28.Inner surface 18b adheres to the second fin part 34.It is contemplated that one or more fins partly adhere to outer surface 16a, 18a.

First and second cross sections the 26, the 32nd can be opened engageable so that the sealing of reclosable is provided for package 10 to each other.Can use optional peelable element (breakableelement) 12, it begins to extend to the second fin part 34 from the first fin part 28.Can the be disposable peelable favored area of the weakness that the peelable element 12 of Fig. 1 is described as choosing wantonly or preferential tear zone 38 are to constitute the parts that can disposable peelable destruction manifest.Peelable element 12 be not must have a weak part 38 can disposable peelable favored area.For instance, in some embodiments, peelable element 12 comprises re-sealable adhesive or cohesive strip of paper used for sealing.Weak part 38 preferentially can disposable peelable zone can be line, a series of perforation, leptoprosopy long-pending (thinned area) or high orientation area.In addition, by piercing through this preferential position, the priority area of weak part 38 is separated in one way.Before opening, the priority area of weak part 38 prevents to destroy the package 10 of reclosable.

The package 10 of reclosable can further comprise the optional slide block device 36 (Fig. 2) that is contained in slidably on the fastener 14, and slide block device 36 is used for the motion of switching between closure state and the open mode.With reference to Fig. 1 and 2, first and

second sides

26,32 are engaged with each other when slide block device 36 is in closure state, and slide block device 36

side

26,32 when closure state moves to open mode is separated from one another.

The package 10 of Fig. 2 also comprises end-terminal 37.End-terminal can have many-sided purposes, prevent or prevent slide block device 36 to slip over fastener 14 ends such as (a), (b) interact to produce closed energy stereognosis indication with slide block 36, (c) help to prevent or prevent leakage in the package 10, and (d) first and

second sides

26,32 are combined and between the normal operating period, provide additional strength to put on the pressure of

side

26,32 with opposing at package 10.The details of structures that relate to slide block device 36 and end-terminal 37 and operation can be from Herrington more, obtains in people's such as Jr. the U.S. Pat 5,067,208, and it all introduces the application as a reference.

Imagination can use other end-terminal to replace above-mentioned end terminal 37.For example terminal welding, terminal welding can be by being pressed on the heating rod of fastener end, ultrasonic bonding, perhaps other method known in the art formation.

Illustrational as Fig. 1 and 2, the unfolding mode of the package 10 of reclosable of the present invention is: the consumer holds slide block device 36 and slides then and cause first and

second sides

26,32 of first and second tracks, 24,30 correspondences to be separated from each other.Next, the consumer tears peelable element 12 (if existence) along the priority area of weak part 38.Alternatively, if used element 12, the consumer can open peelable element 12 by piercing through element 12.Package can utilize fastener 14 and slide block device 36 to seal once more.In particular, the consumer holds slide block device 36 and makes it slide into closure state from open state then to cause the engagement of first and

second sides

26,32.

Disposable peelable element 12 guarantees that not only the consumer buys the brand-new former package of never opening, and provide good initial sealing, before opening it for the first time, keep the freshness of perishable content in the package, and can stop or prevent that activating agent from being activated by the activation such as moisture-trigger condition.Because the closing device of the reclosable among Fig. 1 is positioned at above the disposable peelable element, (closing device that can be closed again is farther from the inner space), the operation of the closing device of reclosable is not hindered because of disposable peelable element exists.

Specifically described as Fig. 1, agent structure can be connected with the first main body panel inner surface 16b or main body panel can be made by the following Web materials that further describes.Activating agent can comprise the known material that package or its content is provided required function or influence.In some embodiments, activating agent comprises freshness-prolongation agent, its be used to prolong in the package the useful life or the freshness of the food of putting or other perishables.In other embodiments, activating agent comprises odor management agent, and it is used to cover, neutralize, and/or reduces bad smell or be used to make generation aromatic odor in the package.Further, Web materials can comprise color indicator and other activating agent, in more detail as mentioned above.

The form of available agent structure 50 and structure are suitable for reagent Expected Results and package structure.For example in some embodiments, agent structure 50 forms can be coating, liner (patch), band, pouch, its combination, or any other form can load to, and perhaps are attached to or are integrated in the Web materials structure to constitute package 10.In addition or alternatively, activating agent can be printed onto on the Web materials bottom, with its altogether-extrusion molding, spraying, apply by Web materials being immersed activating agent, make deposition, curtain coating, be embedded in the Web materials or combination by these methods by means of non-electro-deposition, vapour deposition, fusion or alternate manner by electrostatic attraction.Place the selection of the used form of activating agent on the Web materials usually to depend on the kind of used activating agent, and desired indication, used form is such as the form with coating, liner (patch), pouch or band.For instance, pulverous activating agent (for example, comprising the mineral of chemical property) can be put in the ventilative pouch, and is unsuitable for being placed in the liner, because usually be difficult to embedding pulvis in liner.Alternatively, adhere to Web materials on the Web materials, perhaps before extruding, mix with the material of fibre web thereby Powdered activating agent can be spread.The non-limiting example that can integrate with the Powdered activating agent of agent structure 50 comprises perlite, calcium carbonate, kaolin, and prepare by Engelhard

Antimicrobial.

If band or liner are used to support agent structure 50, then this band or liner can by fibre web of the present invention form and further comprise adhesive, as the element of liner shape and/or the delivery system such as slip additive, slip additive helps to stop or prevent agent structure and adhesive adhesion.For instance, delivery system can be positioned on the band or the surface of liner, and the surface of this band or liner is positioned at the distally on the surface that contact with the affiliated main body panel of band or liner, prevention or prevent adhesion when rolling up with convenient package.Material such as siloxanes and glycerin monostearate can be at the interelement of described delivery system.

According to a further aspect in the invention, activating agent can be with the Web materials extrusion molding of final formation main body panel 16.For instance, activating agent can oil droplet or the formation of powder be blended in the Web materials, and the main body panel that constitutes thus, form that perhaps can microcapsules is dispersed in the material of main body panel 16.In a preferred embodiment, before integrating with Web materials or package structure earlier the activating agent microcapsules sealing of packing into.Micro encapsulation seal is encapsulated in activating agent in the polymeric material, this polymeric material can be through heat-treated during encapsulation process and processing, but its degraded, dissolving or other break and in case contact with predetermined environmental factor such as moisture and just to discharge this activating agent.Activating agent can use the Web materials melt that these microcapsules are scattered with being packaged into microcapsules then, is squeezed into Web materials then during producing in batches.

The Web materials of main body panel 16 can soak into activating agent otherwise.Also can imagine activating agent with spraying, brush, coating, lamination, impression, or alternate manner places on the Web materials, and place thus on the main body panel 16.

In some embodiments, activating agent comprises one or more freshness-prolongation agent.Freshness-prolongation agent can be, for example natural oil, antimicrobial, controlled atmosphere agent perhaps another kind ofly can prolong the material of the freshness or the storage life of food or other perishables.For instance, some limiting examples of freshness-prolongation composition comprise that isothiocyanates is such as from natural allyl group isosulfocyanate (AIT), the d-limonene, eugenol, allicin, isothymol, thymol, chlorine dioxide, hydrogen peroxide, SODIUM PERCARBONATE, ascorbic acid, citric acid, cinnamic acid, mustard, peppermint, spearmint, triclosan (triclosan), leek (allium stem tuber), Chinese cassia tree (Cinnamomum cassia), Fructus Corni (Cornusofficinalis), pi-allyl cyaniding thing, 1-cyano group-2,3-epithio propane, the allyl sulfide cyanate, lactobacillus reuteri (Lactobacillus reuteri), methyl-isorhodanate, cassia oil, lemongrass oil, thyme linaloe oil, the jasmonic acid methyl ester, tea oil, ethanol, salicylide, carvacrol, cumene, the essential oil extract of various onions, the essential oil extract of garlic, from european cranberry, cloudberry, raspberry, the fruit phenol extraction thing of strawberry and blueberry, from european cranberry, cloudberry, raspberry, the Ellagitannins of strawberry and blueberry, from nutmeg, peppermint, cloves, wild marjoram, Chinese cassia tree, sassafrases, Salvia japonica (sage), the essential oil of thyme and rosemary,, vanillic aldehyde, vanillyl alcohol (vanillylalcohol), vanillic acid, diacetyl, natural honey, Dioxygen difluoride, carbon dioxide, air conditioning agent and combination thereof.Air conditioning agent can comprise nitrogen, oxygen, sulfur dioxide, carbon monoxide, carbon dioxide and combination thereof.

So AIT is beneficial to as freshness-prolongation agent especially because of having antibacterial characteristics, AIT can obtain from plant such as mustard flour (mustard) and mustard (wasabi) or perishables naturally.Preferably, AIT extracts from the plant such as mustard, and AIT comprises glucose isothiocyanates (glucosinolate) and myrosinase enzyme (myrosinase enzyme).Myrosinase and glucose isothiocyanates react each other to generate AIT, because this reaction relates to hydrolysis, so humidity activates the AIT preparation.AIT has shown the characteristic of antibiotic and anti--microorganism, and when it is discharged into whole package atmosphere with gaseous form in, thereby it has strengthened this atmosphere and causes suppressing the freshness that bacterial reproduction prolongs perishables.Therefore, the product that comprises AIT or generation AIT can be as the freshness-prolongation agent in the embodiment of the present invention, and described product comprises various forms of mustard, horseradish and the mustard flour such as extract, powder, oil droplet or broken seed.AIT can microcapsules arranged in form.The list of references of describing the usage of microcapsules comprises for example U.S. Pat 6,818,296, publication number is that 2004/0051191 U.S. Patent application, publication number are that 2005/0249952 U.S. Patent application, publication number are that 2005/0208089 U. S. application, publication number are that 2005/0089548 U. S. application and application number are the U. S. application of US 2006/0013884.

In some embodiments, the freshness-prolongation agent that comprises AIT can also be used with another kind of function agent combination.For example in a described embodiment, the mustard flour seed that grinds combines with sour, and it has greatly improved the anti--microorganism effect that extracts AIT and strengthened mustard thus from mustard.Therefore, if the mustard seed seed that grinds as freshness-prolongation agent, it can combine with anhydrous acid such as anhydrous citric acid with the ratio that requires and be used to improve AIT output, and strengthens freshness-prolongation function thus.

According to a further aspect in the invention, provide the function reagent that combines with another kind of activating agent to indicate the useful life of this activating agent.For example color reagent or color indicator provide color reagent or color indicator to can be used for from the term of validity, surplus or the release conditions that visually indicate activating agent.Alternatively, and extraly can be indicated with the form or the appreciable mode of any other user of sense of smell.Described indicator provides the straightforward procedure of the release or the consumption of detection of active agent, so that the consumer can determine the residue term of validity of activating agent usually.Therefore, indicator makes the waste that abandoned Web materials or package prematurely and may cause before activating agent is finished release reduce to minimum.This makes can more effectively use activating agent by means of informing that consumer wants more brings.It is unrestricted with illustrations that list of references will exemplify alternative color indicator.

For example, the release or the moisture of activating agent are consistent in the generation of color indicator discoloration and the package atmosphere, the influence of the moisture that discharges such as the perishables that are subjected to comprising in the package.For instance, the color agent is strapped in can be finished ＂ coupling and discharge ＂ in microsphere or the bead, this microsphere or bead be designed to the similar or consistent no-load speed of activating agent rate of release under degrade.

Along with reagent is discharged in the package atmosphere and the minimizing of remaining dosage, the color indicator is passed variable color gradually in time, provides the ＂ coupling that discharges corresponding to activating agent to discharge ＂ thus.For instance, begin to be shown as yellow color indicator and can gradually change into limpid colourless attitude, corresponding to the release of reagent.Described color indicator also indicates the scope or the amount of remaining agent, gradually changes or fades or color gradient by passing in time.Colour chart can be provided for the more accurate measurement of residual activity agent in the storage life, realizes by colourity and the comparison of the colour code on the chromatogram with the color indicator.

Any coloring material or the material that can provide the ＂ coupling to discharge ＂ can use.For instance, can use other methylcellulose of food-level (MC), HYDROXY PROPYL METHYLCELLULOSE (HPMC), perhaps carboxy methyl cellulose (CMC).These materials are dissolved in moisture, to such an extent as to make material with the essentially identical speed of reagent storage life under dissolve.Any commercially available food-other MC of level, HPMC or CMC can use, for example HM HPMC, Dow

And Hercules

With

In one embodiment, agent structure comprises methylcellulose, and this methylcellulose has the color different with structural color.For instance, blue methylcellulose is included in the green structure.Along with reagent release and methylcellulose are dissolved in moisture, the color of structure becomes green from blueness, shows that reagent lost efficacy.

The color indicator can also comprise disclosed technology in people's such as Fujita U.S. Pat 6,124,219 and/or the U.S. Patent application that publication number is US2005/0129937, and wherein every piece the full content place of being incorporated herein as a reference.For example U.S. Pat 6,124, and 219 disclose functional material, and this functional material comprises volatilizer, oil-soluble dyes and porous carrier, and its volatilization with volatilizer is faded.According to this patent, volatilizer and oil-soluble dyes remain on can not be by in the hole of the painted porous carrier of oil-soluble dyes, and the dissolving ratio of oil-soluble dyes is 0.0001-1%.Dyestuff is dissolved in volatilizer, so and because dissolving dyeing.The change color of functional material is therefore closely related with the dissolving ratio of oil-soluble dyes.Because carrier does not have affinity to dyestuff, so dyestuff been separated on the carrier surface when volatilizer almost completely volatilizees, and functional material shows the color of carrier itself.Can use any suitable compatiblely, promptly not play adverse effect, natural or synthetic dyestuffs, printing ink or coating with activating agent with activating agent.

Alternatively, perhaps extraly, indicator can be as the existence of reagent in ＂ reagent marker ＂ mensuration and the indicating package spare atmosphere.For instance, when undetermined went out activating agent, for example before the activating agent activation or after activating agent exhausts, the color indicator can be yellow, then can show green when determining activating agent.

Except that the life-span or existence of activating agent, the color indicator can be used to refer to food spoilage or pollution, the perhaps existence of special gas, compound or smell in the package atmosphere.Described indicator or detection agent are disclosed in U.S. Pat 6,325,974; US5,306,466; US 6,841, and 392; US 6,576, and 474; US 6,495, and 368; US6,361,962 and US 5,439,648 and publication number be in the U.S. Patent application of US 2004/0142495 and US2005/0112085, wherein the full content of each is incorporated herein by reference.

For instance, U.S. Pat 6,325,974 disclose the used package of the perishable items with indicator, can variable color when described indicator is exposed to atmospheric gas and/or volatile compound, addling of the food that is comprised in the package produces this volatile compound.U.S. Pat 5,439,648 also disclose the gas indicator of the part atmosphere that is used to change package.Variable color under the different estimated rates of the gas that indicator is suitable for comprising in package, and package damaged and gas is entered or the condition of this package of overflowing under variable color.Therefore, described indicator can provide to measure existing or lacking of required activating agent.

U.S. Pat 5,306,466 disclose the food pollution detection agent of bar code form.Antigenic determinant (antibody) or pollutant that bar code comprises toxin irreversibly are bound by transparent membrane.Antibody further indicates with the colour developing emulsion particle, so that contacts with bar code when being bound by antibody then when the toxin from food, and color is apparent on the bar code.According to the present invention, can utilize chemical indicator to replace antibody.Publication number be US 2004/0142495 U.S. Patent Application Publication be used to measure the existence of analyte of band antibody or the similar approach of shortage.U.S. Pat 6,841,392 disclose the biomaterial that has reached predetermined concentration or threshold value with polynary antibody test.Can cause that the colour developing icon on the packaging material clearly develops the color in conjunction with specifying polymer so that the biomaterial bonding causes molecule variation in the polymer.

Metal complex can replace antibody to be used to detect addling of food, as is disclosed in U.S. Pat 6,593,142 and publication number be the international application of WO 00/13009, wherein every piece full content is incorporated herein by reference.For instance, can use selectively metal complex in conjunction with biogenic amine or sulphur compound.

Change or the existence of the compound that microbiological spoilage produces according to pH, comprise amine, carboxylic acid and aldehyde, indicator can variable color or send fluorescence, as being disclosed in U.S. Pat 6,576,474 and US 6,495,368 in.

Alternatively, indicator can be smell-sensitivity, as be disclosed in the U.S. Patent application that publication number is US2005/0112085, and can indicate especially refuse odor, raw meat smell, average family smell, cooking smell, mercaptan, amine, ammonia, sulphur, sulfide, and some acid.

The color indicator can place on the Web materials by the Web materials load or with the same manner, or even with activating agent.For instance, the color indicator can be with the arranged in form of the coating, liner, pouch or the band that adhere to Web materials; Element extrusion molding with Web materials spare; Spraying, brush, coating, lamination or be impressed on the Web materials; Be penetrated in the element of Web materials; And/or be distributed in the Web materials such as the form with microcapsules, perhaps in the described mode of the relevant activating agent of any other this paper.

When with the time, also provide basic unit for agent structure by the arranged in form of the independently agent structure of theme Web materials load.Basic unit is made of the diffusion material that wherein comprises activating agent, and/or can arrange activating agent between basic unit and one or more layers removable covering.Alternatively or extraly, diffusion layer can be arranged between basic unit and the removable covering and/or barrier layer can be arranged on the basic unit relative with removable covering.Preferred barrier layer, basic unit and diffusion layer are made by polypropylene, polyethylene and methacrylic acid ethyl ester polymer respectively.

Freshness-prolongation agent can also provide other to strengthen function, therefore can be used for described other purpose.In some embodiments, for example the activating agent of freshness-prolongation agent and so on can comprise freshness component and the odour-producing component that is used to prolong food freshness, and this odour-producing component just is used for sheltering, reduce and/or and the sharp aroma of freshness component but not be stored in other smell of the content in the package.Preferably, odour-producing component is not sheltered the smell that is stored in the content in the package, such as the stink of food smell or spoilage, so that can or addle by the rotten of measurement of odor content.For instance, comprise that the freshness-prolongation agent of AIT freshness component can also comprise the aromatised fraction such as vanilla, Chinese cassia tree or citrus oils, it can shelter the sharp aroma of AIT, and does not shelter or influence on the contrary the smell of storage thing.Therefore preferably, freshness-prolongation agent is not passed to the storage thing to its organoleptic attribute, makes user's rotting or addle by odor detection storage thing easily.

Alternatively, in some embodiments, activating agent comprises one or more odor management agent.Advantageously, odor management agent can be incorporated into Web materials forming the package of moulding, the package of this moulding is used to collect rubbish or refuse with shielding, neutralization, and/or reduces bad smell.Alternatively, odor management agent can be used for smell being provided or producing smell in package to package.Therefore odor management agent can be incorporated into thermoplasticity satchel or lining and other container, such as rubbish or litter bag, diaper packing material, laundry bag, reservoir bag and Dispoable medical bag or container.

The non-limiting example of odor management agent comprise AIT, d-citrene, mustard, natural finish, chlorine dioxide, hydrogen sulfide, methyl mercaptan, ammonia, lemongrass, pine, the fragrance of a flower and such as

And so on the replacement ester.

The preferred embodiment of odor management agent comprises AIT, can be by providing this agent in conjunction with the mustard in the agent structure 50 for example.Broken mustard seed seed, powder, oil droplet or paste no matter the mustard of which kind of form can be individually or combine with acid (such as citric acid) provide with promote from mustard preparation AIT and improve the resisting of mustard-microorganism property and smell managerial.Because it effectively prolongs perishable freshness as described earlier in this article, so AIT can provide multi-functional when incorporating perishable package into, for example AIT can not only carry out freshness-prolongation function but also carry out smell-management function.

In some embodiments, odor management agent can comprise adding ingredient, and this adding ingredient is used to the user that smell pleasant or that want or fragrance are provided.For instance, the natural oil such as lemongrass oil can be used for managing the smell from package, shields the smell of main odor management agent itself, perhaps makes the smell of odor management more make user's happiness.Shown that the composition management bad smell that comprises the broken mustard seed seed that mixes by about 5% lemongrass oil weight and dewater citric acid is effective especially.

If activating agent comprises fragrance ingredient or the fragrance component that is used to package that required fragrance is provided, then can comprise the other material that is used to improve interior fragrance concentration.For instance, Web materials can comprise that perlite is to improve fragrance concentration.Perlite is suitable for using because it has the ability that keeps fragrance, its stability and its surface area.Other non-limiting example that is used to strengthen the material of fragrance comprises microsphere, talcum, silicon, the silicate such as alumina silicate, vermiculite, diatomite or its combination.

Further according to of the present invention, Web materials or package can be equipped with activation system, and this activation system is causing automatically such as the package of opening reclosable or under the situation the filling content wherein.Activation system can be mechanical in essence, such as perforation or bar separation system, in case this system separates then the release of initiating activity agent.Another activation method can be according to the wetness or the moisture (for example, it is associated with the water activity of content) that are present in the package.For instance, high moisture content can cause chemistry or other reaction, and described reaction discharges the volatile chemical such as carbon dioxide or chlorine dioxide subsequently.In such an embodiment, if the moisture in the package of reclosable is higher then add more activating agent.Example by the reaction of high moisture content activation is salt and acid reaction, such as sodium acid carbonate and citric acid, and perhaps clorox and citric acid.Also help the release of AIT as the moisture that illustrates previously.In such an embodiment, with the increase of moisture, more activating agent is discharged in the package atmosphere.

During the method for operating of the package of the reclosable that constitutes with the theme Web materials, for example this Web materials has humidity-activation freshness prolongation agent, perishables place interior, and the humidity that is increased in perishables or moisture make freshness-prolongation agent activation.Preferably, the package of reclosable is formed to suppress because the activation of the activating agent that surrounding environment causes by described barrier material.Additionally, if agent structure is arranged in bag opening of shape package or presses close to the limit of container-like package, then can finish and select activation or discharge.For instance, with close this reagent of perishables, the humidity of perishables or moisture can activate this reagent (for example entering the limit of passing through opening or process package between inner initial resting period at perishable farm products), and perishable farm products keeps being arranged in inside, and when air enters inner inlet (for example during the opening wide of package).Arrange that when in transparent wrapper spare, requiring the maximum demonstration amount of content it can also be favourable that the agent structure is pressed close to the limit of opening or package.

Can be by providing barrier material further controlled humidity activation method.For instance, if the package that sealing is formed by Web materials, preferably this Web materials provides barrier layer or is formed so that produce enclosed environment to prevent or to suppress the importing of humidity and the release of activating agent by barrier material.As used herein, term ＂ barrier layer ＂ and ＂ barrier material ＂ comprise that inhibition or other control activating agent are discharged into layer or the material in the package atmosphere, and are not limited to layer or the material that hinders fully or prevent described release.

The embodiment of barrier material is the polyethylene glycol (PEG) that is incorporated into low density polyethylene (LDPE) (LDPE).Other is provided with obstruction water, water vapour, oxygen, nitrogen, carbon dioxide, ethene, the material of the transfer of the activating agent of volatility or fixedness is including, but not limited to following polymer, copolymer, blend, extrudate, the co-extrusion thing, coating, metal lining or laminate: low density polyethylene (LDPE) (LDPE), LLDPE (LLDPE), linear density polyethylene (LMDPE), high density polyethylene (HDPE) (HDPE), very low density polyethylene (VLDPE), (mPE) of metallocene class, polypropylene (PP), oriented polypropylene (OPP), acrylonitrile butadiene styrene polymer (ABS), acrylonitrile-styrene-acrylic ester polymer (ASA), acrylonitrile-EPDM-styrene polymer (AES), the ASA/AES copolymer, polyamide 6, polyamide 66 and their copolyamide, polyvinyl chloride (PVC), acrylate copolymer, poly-terephthalic acids butanediol ester (PBT), ethylene/ethyl acrylate (EEA) polymer, ethylene/vinyl acetate polymer (EVA), MPS, ethylene-vinyl alkoxide polymer (EVAL or EVOH), polyvinylidene chloride (PVDC), liquid crystal polymer (LCP), polyamide, polyacrylic acid (PAA), PLA (PLA), PETG (PET), glycol modification PETG (PETG), saran, the pottery filled polymer, nano composite polymer, polychlorotrifluoroethylene (PCTFE), polymethyl methacrylate (PMMA), acrylonitrile-methyl acrylate polymer (AC-MA), polyphenylene oxide (PPE), poly-inferior phenoxide (PPO), thermoplastic elastomer (TPE), glassine paper, nylon, improved polyalkene with barrier property, cyclic olefin copolymer, polyacrylonitrile, acrylonitrile copolymer, polyacetals, modified poly ester, acrylic compounds thing, and inorganic barrier coat.

Preferred barrier material comprises the polymer of sheet metal, PETG (PET), metal lining, such as polyester, polyvinylidene chloride (PVDC) and the ethylene vinyl alcohol polymer (EVOH) of metal lining.

Be applicable to that the preferred material that hinders water vapour importing package comprises low density polyethylene (LDPE) (LDPE), LLDPE (LLDPE), linear density polyethylene (LMDPE), high density polyethylene (HDPE) (HDPE), polypropylene (PP), oriented polypropylene (OPP), acrylonitrile-methyl-acrylate (AMA) polymer, polyvinyl chloride (PVC), PMMA, acrylic polymer, ethylene/vinyl acetate polymer (EVA), polyvinylidene chloride (PVDC), PETG (PET), glycol modification PETG (PETG), saran, the pottery filled polymer, nano composite polymer, polychlorotrifluoroethylene (PCTFE), polymethyl methacrylate (PMMA), acrylonitrile-methyl acrylate (AC-MA) polymer, improved polyalkene with barrier property, cyclic olefin copolymer, polyacrylonitrile, acrylic acid derivative polymer, inorganic barrier coat, polymer thin slice and metal lining, polyvinyl fluoride (PVF), ionomer, PEI, PEN (PEN), butyl rubber, and polychlorobutadiene (Neoprene G).

Be suitable for hindering the preferred material that activating agent and/or oxygen discharges in the package and comprise high density polyethylene (HDPE) (HDPE), polypropylene (PP), oriented polypropylene (OPP), acrylonitrile-methyl-acrylate (AMA) polymer, polyvinyl chloride (PVC), PMMA, acrylic polymer, polyvinylidene chloride (PVDC), PETG (PET), glycol modification PETG (PETG), saran, the pottery filled polymer, nano composite polymer, polychlorotrifluoroethylene (PCTFE), polymethyl methacrylate (PMMA), acrylonitrile-methyl acrylate (AC-MA) polymer, improved polyalkene with barrier property, cyclic olefin copolymer, polyacrylonitrile, acrylate derivative, inorganic barrier coat, the polymer of thin slice and metal lining, polyvinyl fluoride (PVF), PEI, PEN (PEN), polyvinylidene fluoride (PVDF), polyimides, polyether-ether-ketone (PEEK), polyformaldehyde (POMC), poly-acetal, acrylonitrile butadiene styrene polymer (ABS), polyamide 6, polyamide 66 and their copolyamide, poly-terephthalic acids butanediol ester (PBT), thermoplastic polyester (TPE), MPS, ethylene-vinyl alkoxide polymer (EVAL or EVOH), polyamide, PLA (PLA), glassine paper, nylon, modified poly ester and polyether sulfone (PES).

About previous materials, those be suitable as barrier layer be used to hinder water vapour enters package and in the package material of release bioactive agent comprise high density polyethylene (HDPE) (HDPE), polypropylene (PP), oriented polypropylene (OPP), acrylonitrile-methyl-acrylate polymer (AMA), polyvinyl chloride (PVC), PMMA, acrylic polymer, polyvinylidene chloride (PVDC), PETG (PET), glycol modification PETG (PETG), saran, the pottery filled polymer, nano composite polymer, polychlorotrifluoroethylene (PCTFE), polymethyl methacrylate (PMMA), acrylonitrile-methyl acrylate (AC-MA), improved polyalkene with barrier property, cyclic olefin copolymer, polyacrylonitrile, the acrylic acid derivative polymer, inorganic barrier coat, thin slice and metal deposition polymer, polyvinyl fluoride (PVF), PEI, and PEN (PEN).

It is also contemplated that and use other barrier material such as thin slice and metal lining polymer, such as the oriented polypropylene (OPP) of metal lining.This barrier layer is at least for water vapour and activating agent, and, in some embodiments, also impermeable basically for oxygen, nitrogen and carbon dioxide or its combination.Therefore this barrier layer suppresses or prevents that water vapour (and, in some embodiments, oxygen, nitrogen, and carbon dioxide) from entering the inside of this packing, suppressing or preventing that this activating agent from leaking from this package interior.The example that is used to form the cyclic olefin copolymer of this barrier layer is

8007.The olefin copolymer that it is believed that useful ring-type can obtain from several companies.For example, the Ticona of firm of Celanese AG is positioned at Summit N.J. supply cyclic olefin copolymer.Other company that it is believed that the supply cyclic olefin copolymer comprises Nippon Zeon (Japan), and Mitsui Chemical (Japan) and JSR (Japan) are called Japan Synthetic Rubber in the past.The Ticona of firm of Celanese AG, have can according to

The cyclic olefin copolymer (COC) that sign is purchased.It is believed that these cyclic olefin copolymers prepare and the use metallocene catalyst with ENB and ethylene raw.It is believed that supplying of existence at least four kinds of grades

Resin ( 8007, TOPAS

6015 and 6017).Supplying of this four kinds of grades

The glass transition temperature that resin has respectively, T _g, be 80 ℃, 140 ℃, 160 ℃ and 180 ℃.These four kinds of grades

The corresponding ENB content of resin is 35 moles of %, 48 moles of %, 55 moles of % and 59 moles of %.

Preferably, Web materials comprises thermoplastic.For example, can provide polymeric matrix layer to be used for flooding therein or carrying micro-encapsulated activating agent.The base layer of this agent structure 50 can be made such as polyethylene, polypropylene, polystyrene and combination thereof by polyolefine material.The limiting examples of this base layer material comprises following polymer, copolymer or blend: low density polyethylene (LDPE) (LDPE), LLDPE (LLDPE), linear density polyethylene (LMDPE), high density polyethylene (HDPE) (HDPE) very low density polyethylene (VLDPE), (mPE) of metallocene class, polypropylene (PP), polyamide 6, polyamide 66 and their copolyamide, polyvinyl chloride (PVC), acrylate copolymer, thermoplastic polyester (TPE), ethylene/vinyl acetate base ester polymer (EVA), polystyrene (PS), high impact polystyrene (HIPS), MPS, liquid crystal polymer (LCP), polyamide, polyacrylic acid (PAA), PLA (PLA), glycol modification PETG (PETG), polymethyl methacrylate (PMMA), polyphenylene oxide (PPE), thermoplastic elastomer (TPE), with cellulose and filled plastics.These materials provide good water vapor barrier usually, but allow oxygen and activating agent infiltration.Polyethylene is because its recirculation is particularly advantageous.The other example that can be used for forming the material of this Web materials is ethyl-methyl acrylate (EMA).The surface of Web materials can be formed (for example, gauze) by the non-woven material of porous, and it allows this activating agent to prolong agent, odor management agent or other activating agent such as freshness to be released.For odor management agent, one deck of this odor management structure may further include the resin (for example LLDPE) of aromatic (for example, liquid fragrance), sense of smell-raising mineral and/or polymer.

Accessible as those of ordinary skills, the amount of reagent of using with packaged combination will depend on the applied external condition of this reagent, for example, and the loss of reagent and rate of release.This rate of release refers to that this reagent discharges into the speed of this package interior, and loss speed refers to the speed of the reagent of this release from this package interior leakage.Preferably, the rate of release that reagent of the present invention configuration quantity makes reagent in the ＂ shelf life ＂ that is predetermined or between the operating period greater than the loss speed of this reagent, so that this reagent replenishes at package interior and reproduces than its loss soon, thereby guarantees the effective performance of reagent.The loss speed of this reagent depends on and package design, structure, and uses relevant various factors.

Imagination can be used for extra play the part of this packing to improve the performance of this activating agent.For example, barrier layer can help to make this activating agent, for example freshness-prolongation agent, the internal communication of this reclosable packages spare and, help prevent thus or suppress this freshness-prolongation agent and permeate by main body panel.Similarly, this barrier layer when being used to limit this package, suppressing moisture or other activator and makes this activating agent activation.

And for example, with reference to the embodiment of Fig. 1 packing, each relative

main body panel

16,18 is preferably formed barrier layer, its basically at least for water vapour and activating agent and, also impermeable in some embodiments for oxygen, nitrogen, carbon dioxide or its combination.Relative

main body panel

16,18 can comprise, in other words, is formed by one or more above-mentioned materials to small part.Relative

main body panel

16,18 can comprise the barrier layer on the outside and/or inner surface that is positioned at this package.

Based on above-mentioned, Web materials of the present invention, it comprises barrier layer and the activating agent that carries thereon, can be used for forming the part of packing, such as main body panel, cover cap material or parcel.Alternatively, Web materials of the present invention can form to limit for packing or else to require employed agent structure.

For illustration, about in conjunction with enter freshness-prolongations agent that agent structure of the present invention or structure of the present invention carry now the general disclosed this packing of the present invention further be described in this application.Those skilled in the art will appreciate that disclosed packing can change into the activating agent that comprises other kind aptly.

This barrier layer can limit or be positioned in addition the inner surface of freshness-extending structure in a kind of above-mentioned embodiment, for example, and shown in Fig. 3 a.In Fig. 3 a, a side of packing 210 is described as main body panel 212, and it comprises freshness-extending structure 214, and second main body panel (not being presented among Fig. 3 a).The freshness of freshness-extending structure 214-prolongation agent contacts with this inner space, and a surface of this freshness-extending structure 214 is connected to the surperficial 212a of main body panel 212 via adhesive, heat-sealing or welding, for example ultrasonic bonding.It is contemplated that the method for attachment of using other.For example, this freshness-extending structure can use mechanical means such as anchor clamps or nail to be connected at least one surface of main body panel.In addition, this freshness-extending structure can be set to the coextrusion structure or as lamination.Changeable is that it can be coated on the thin layer.According to of the present invention, this Web materials comprises the main body panel 212 and configuration activating agent thereon of Fig. 3 a embodiment thus.

Changeablely be, and as previously noted, this Web materials can form the agent structure of separation that it has the activating agent that basic unit and this basic unit carry.This basic unit can make with barrier layer or diffusion material and the activating agent that is included in wherein, and/or this activating agent is configured between this basic unit and the removable covering.Changeable is or other that diffusion layer can be arranged between this basic unit and this removable covering and/or barrier layer can be provided in this basic unit relative with the covering of removing.In one embodiment, this barrier layer, basic unit and diffusion layer are preferably made with polypropylene, polyethylene and ethyl-methyl acrylate respectively.

The agent structure of this separation can be liner, band or pouch.With adhesive is provided, this agent structure can adhere to the main body panel of packing.If be connected in this Web materials, that is to say, finally be connected in the wall or the main body panel of packing, such connection can with bonding, bond, merge or be welded to connect.In alternative embodiment, this agent structure can be simply within this packing.

The embodiment that Fig. 3 b describes comprises reclosable packages 230, and it comprises first main body panel 212, second main body panel (not being presented at Fig. 3 b), and freshness-extending structure 234.This structure 234 comprises ground floor 216, and it is that barrier layer and the second polymer layer 218,218 comprise freshness-prolongation agent.Ground floor 216 can be the barrier layer of polymer, and the barrier layer of this polymer uses a kind of this previously mentioned barrier material.A kind of example of the polymer that the second polymer layer 218 uses is that polyolefin is such as linear low density polyethylene (LLDPE) (LLDPE).Fig. 3 b ground floor 216 outer surface 216a are connected in the inner surface 212a of first main body panel 212.The second polymer layer 218 directly is adjacent to ground floor 216 so that this freshness-prolongation agent contacts with this inner space.Depend on form first and second layer 216,218 material, can not will this each layer adhere to each other.More feasible is, for example, is compatible if form first and second layers material, then first and second layers of coextrusion together.In the embodiment of Fig. 3 b, although main body panel 212 preferably comprises the obstruct feature, main body panel 212 need not be a barrier material, owing to provide the layer 216 of iris action to be provided.

The information of it is also contemplated that can be printed on this freshness-extending structure 234 such as on this barrier layer.It is contemplated that this printing can occur in positions different on this structure.For observability and the definition that improves this printing, if this structure is positioned at the inside of this reclosable packages, then be printed on the surface of this freshness-extending structure, that is to say that it is desirable approaching main body panel.For example, in Fig. 3 b, may wish that this printing is located between first main body panel 212 and the ground floor 216.If with adhesive the ground floor 216 of Fig. 3 b is connected on the 212a of this surface, then this printing can be between this adhesive and ground floor 216 then.It is contemplated that the method for attachment of using other is such as heat-sealing or mechanical method.

With reference to Fig. 3 c, reclosable packages 250 comprises first main body panel 212, second main body panel (not being presented at Fig. 3 c) and with liner or banded freshness-extending structure 254.It is contemplated that this structure can be with pouch or coating form.This freshness-extending structure 254 comprises ground floor 216,216th, and barrier layer and the second polymer layer 218,218 comprise freshness-prolongation agent and terpolymer layer 220,220th, diffusion layer.Just as discussed above, ground floor 216 can be a polymeric layer.The second polymer layer 218 that comprises this freshness-prolongation agent is between ground floor 216 and the 3rd layer 220.A kind of example of the polymer that the second polymer layer 218 uses is that polyolefin is such as linear low density polyethylene (LLDPE) (LLDPE).Via permeable this terpolymer layer 220, this freshness-prolongation agent contacts with the inner space of this reclosable packages.Thus, these terpolymer layer 220 control permeability and permeable degree must be that this freshness-prolongation agent can enter this reclosable packages inside via it.

It is contemplated that this terpolymer layer 220 can comprise cyclic olefin copolymer.This terpolymer layer can comprise the about 80 weight % of about 10-or, more particularly, the cyclic olefin copolymer of the about 40 weight % of about 20-to be to help to reduce curl (curling) of polymer architecture.Though not bound by theory, if it is incompatible each other then tend to produce to curl to form the material of this polymer architecture layer, because for example, their shrinkage factor difference.With this diffusion layer phase ratio, this barrier layer can comprise easier crystalline material, even have, As time goes on this barrier layer shrinks also seldom, this diffusion layer can comprise material, such as polyethylene, it tends to As time goes on shrink.The disadvantage that such structure is curled is that this edge tends at the itself cupping transverse curl, therefore produces processing problems.Curling by using cyclic olefin copolymer to reduce in this terpolymer layer or suppressing of polymer architecture, ground floor and this terpolymer layer become more compatible thus.Add cyclic olefin copolymer to terpolymer layer 220 and also slow down the inside that freshness prolongation agent penetrates into this reclosable packages 250.

Just as discussed above, it is contemplated that this freshness-extending structure 254 of Fig. 3 c can have releasing agent (for example, slip additive), it helps prevent or suppresses this polymer self and adheres to.The information of it is also contemplated that can be printed on the structure 254.Ground floor 216 can be connected in the surface of main body panel via adhesive, heat-sealing or other method.

With reference to Fig. 3 d, reclosable packages 270 comprises first main body panel, 212, the second main body panel (not being presented at Fig. 3 d), and the freshness-extending structure 274 of liner or band forms.It is contemplated that this structure 274 can be a pouch.It is the ground floor 216 of barrier layer that this freshness-extending structure 274 comprises, and is diffusion layer and the second polymer layer 219 that comprises freshness-prolongation agent.This freshness-prolongation agent must contact with the inner space of this reclosable packages or bag.Ground floor 216 can be connected in main body panel 212 via adhesive, heat-sealing, welding or other method.

This reclosable packages can comprise above a kind of freshness-prolongation or ＂ reagent ＂ structure, comprise freshness-prolongation agent in this structure.For example, this reclosable packages can comprise two or three freshness-extending structures, its each self-contained freshness-prolongation agent.

This freshness-extending structure (for example, comprise the freshness-liner of prolongation agent, band, pouch, perhaps coating) can size variation and depend on number and this packaging size of factor such as the amount of requirement freshness-prolongation, employed specific freshness-prolongation agent, freshness-extending structure of being used to pack.Normally about 1/2 inch or 1 inch-Yue 12 inches of the size of this freshness-extending structure.The limiting examples of freshness-extending structure size comprises 1/2 inch * 1 inch, 1 inch * 1 inch, 1/2 inch * 2 inches, 1 inch * 6 inches, 2 * 4 inches, and 4 * 12 inches.The thickness of this freshness-extending structure can be diversified still usually less than about 20 mils among the present invention.In some embodiments, the preferably about 12-16 mil of this thickness of structure and more preferably from about 14-15 mil.In other embodiment, preferably about 5-10 mil of this thickness of structure and more preferably 5-6 mil.

According to another embodiment, this freshness-extending structure can comprise matrix of nonwoven filament.This matrix of nonwoven filament can flood after this matrix of nonwoven filament has formed.The dipping of this matrix of nonwoven filament can prolong agent coating by freshness to be finished.Changeable is that this matrix of nonwoven filament can form together at first with this freshness-prolongation agent therein.According to other embodiments, this freshness-prolongation agent agent structure can be the micro encapsulation seal in this freshness-extending structure.

In one embodiment, be liner, band, pouch, perhaps this freshness-extending structure of coating is positioned at or with packing such as reclosable packages 10 or satchel is inner contacts.For example in Fig. 3 a, the phantom of the one side of this reclosable packages 210 is described with main body panel 212 and this freshness-extending structure 214.This structure 214 is connected in the inner surface 212a of main body panel 212, and wherein this inner surface 212a forms the inside of this reclosable packages 210.

Changeablely be, coating, liner, pouch, perhaps Dai this freshness-extending structure can be positioned at the article outer surface or make this freshness-prolongation agent porous enter or contact with the inside of reclosable packages within the layer of article.For example, be coating, liner, pouch, to such an extent as to perhaps Dai this freshness-extending structure is positioned on the Web materials on the reclosable packages outer surface, wherein the part of main body panel is removed this freshness-prolongation agent that makes from this freshness-extending structure and can penetrates into the inside of reclosable packages.For example, with reference to Fig. 4, the phantom of the Web materials of one side at least that is used to form reclosable packages 310 shows that this freshness-extending structure 314 is connected in the outer surface 316a of main body panel 316.Main body panel 316 has at least one opening 318, and it allows to penetrate into the inside of reclosable packages 310 from this freshness-prolongation agent of this freshness-extending structure 314.Opening 318 can be big opening or a plurality of little opening, and it is from extending with the main body panel 316 by reclosable packages 310.This opening 318 can be formed by the methods known in the art that comprise perforation method.

In another embodiment, Fig. 5 describes the phantom of the Web materials of at least one side that is used to form reclosable packages or satchel 410.This reclosable packages or satchel 410 comprise outside layer 412, this freshness-extending structure 414 and have the interior layer 416 of opening 418.This freshness-extending structure 414 and be connected in this outside the layer 412 and this interior layer 416 between.Opening 418 allows to contact with the inside of this reclosable packages or bag 410 from this freshness-prolongation agent of this structure 414.Before this Web materials is formed this reclosable packages or satchel 410, can with this freshness-extending structure during the preparation of this Web materials, insert between the layer 412 of this interior layer 416 and outside.

This freshness-prolongation agent that the layer of imagination reclosable packages can comprise this freshness-extending structure is permeable, and this freshness-prolongation agent is contacted with the inside of reclosable packages.Fig. 6 describes such an embodiment, and what wherein show is the phantom that is used to form the Web materials of reclosable packages 510.This reclosable packages 510 comprises this freshness-extending structure 514 and diffusion layer 516.This diffusion layer 516 allows to enter the inside of reclosable packages from this freshness-prolongation agent of this freshness-extending structure 514.During this Web materials of preparation, this Web materials is being formed before this reclosable packages or the satchel 510, this freshness-extending structure 514 can be connected in this diffusion layer 516.

This diffusion layer 516 can be made with the material that is fit to, and this material allows this freshness-prolongation agent to reach the inside of this reclosable packages with fast relatively form.Thus, the material that infiltration is provided for water, water vapour, oxygen, nitrogen, carbon dioxide, ethene, volatile activating agent or nonvolatile activating agent can be used for this diffusion layer.The example of diffusion layer 516 comprises following polymer, copolymer, blend, extrudate, the coextrusion thing, coating or laminate: low density polyethylene (LDPE) (LDPE), LLDPE (LLDPE), very low density polyethylene (VLDPE), (mPE) of metallocene class, polypropylene (PP), acrylonitrile butadiene styrene polymer (ABS), polyamide 6, polyamide 66 and their copolyamide, polyvinyl chloride (PVC), acrylic polymer, poly-terephthalic acids butanediol ester (PBT), thermoplastic polyester (TPE), ethylene/ethyl acrylate (EEA) polymer, ethylene/vinyl acetate polymer (EVA), polystyrene (PS), high impact polystyrene (HIPS), MPS, ethylene-vinyl alkoxide polymer (EVAL or EVOH), polyacrylic acid (PAA), PLA (PLA), filled polymer, the hydrophilic nano composition polymer, polymethyl methacrylate (PMMA), thermoplastic elastomer (TPE), dimethyl silicone polymer (PDMS), polymethylpentene (PMP), polyvinyl acetate (PVA), polyvinyl alcohol (PVAL), and cellulose acetate (CA), all these has the compatibility general to moisture.

Accessible as those of ordinary skills, according to the percentage ratio of this material in this layer structure, the quantity of this material (for example in layer structure, this layer thickness of structure) and/or manufacture method, the polymeric material of same-type can be used to form or hypothallus, barrier layer or diffusion layer.Thus, be used for this matrix, obstruct by using specific polymeric material as component, perhaps diffusion layer depends on its quantity and occupation mode.

Fig. 7 describes other embodiments with forming at least the phantom of the Web materials of a side of reclosable packages 530, compares with the reclosable packages 510 of Fig. 6, and 530 comprise extra play (exterior layer 512).

It is contemplated that in forming Fig. 3-7 and add extra play in the Web materials and reclosable packages.For example, in the main body panel that forms reclosable packages or form in the barrier layer of this packing and use vinyl alcohol (EVOH) copolymer or Vingon layer (PVDC).Such barrier layer helps to keep this freshness-prolongation composition to contact with the inside of reclosable packages.Imagine other layer in addition, improve layer such as freshness-prolongation.Freshness-prolongation improves layer and can operate to increase the conveying that freshness prolongs agent with increase humidity.It is particularly advantageous that such freshness-prolongation improves layer, and bacterial reproduction is corresponding to be increased owing to increase humidity often causes, and it causes perishables to damage increases.It is polyvinyl alcohol (PVOH) that freshness prolongs an example that improves layer.

This freshness-extending structure can comprise one or more peelable coverings.The example of such embodiment as described in Figure 8, the phantom of Web materials that wherein is used to form a side of reclosable packages 610 comprises main body panel 612, freshness-extending structure 614 and peelable covering 622.This peelable covering 622 covers at least a portion of this freshness-extending structure 614 and can cover packing 610 interior exposed of these whole freshness-extending structures 614,614 at this reclosable.This peelable covering 622 prevent or suppress this freshness-prolongation agent at the initial position of shown in Figure 8 it from these freshness-extending structure 614 leakages.This peelable covering can be connected in main body panel 612 and/or this freshness-extending structure 614.This peelable covering 622 is removed to strengthen or to start the release of this freshness-prolongation agent from this freshness-extending structure 614 from this freshness-extending structure 614 by the user.General when perishable will be put into packing, remove peelable covering 622 by the user.An example of peelable covering 622 is that barrier layer is such as EVOH or PVDC.It is contemplated that peelable covering can use along with any freshness-extending structure of liner, band or pouch.

According to an embodiment, reclosable packages is suitable for stores and comprises the freshness-extending structure of the first thermoplasticity main body panel, the second thermoplasticity main body panel and at least one polymer, and it is adapted to pass through and increases article and can be kept in the goods and do not have a freshness that time of damage prolongs article.First and second main body panel is along a pair of relative side and the continuous opening that consequently forms in bottom of this side of bridging.First and second main body panel that connect are formed for the inner space of stores.Freshness-the extending structure of this polymer is connected in the surface of this Web materials and is communicated with this inner space, and one or more in first and second main body panel are formed by this Web materials.This freshness-extending structure also comprises peelable covering, and wherein this peelable covering is applicable at least a portion that originally covers this polymer freshness-extending structure.

According to another embodiment, Web materials can be configured to produce the reclosable packages with two freshness-extending structures.For example, with reference to Fig. 9 a, reclosable packages 710 comprises first thermoplastic main body panel 712, the second thermoplastic main body panel and (is not presented at Fig. 9 a), first freshness-extending structure 714a, and second freshness-extending structure 714b.Just as discussed above, first and second main body panel is along a pair of relative side and the continuous opening that consequently forms in bottom of this side of bridging.First and second main body panel are connected to form the inner space that is used for stores.

First freshness-extending structure 714a comprises bilayer and is liner or band.It is contemplated that first and second freshness-extending structure can form pouch.First freshness-extending structure 714a comprises

ground floor

716a, and 716a is a barrier layer, and the second polymer layer 719a, and 719a is diffusion layer and comprises freshness-prolongation agent.Ground floor 716a can be a polymeric layer.The second polymer layer 719a directly with ground floor 716a adjacency.Ground floor 716a is shown in Fig. 9 a, and it is connected in this Web materials, and this Web materials forms first main body panel 712 via adhesive, heat-sealing or other method.

Similarly, second freshness-extending structure 714b comprises bilayer and is liner or band.Second freshness-extending structure 714b comprises the 3rd layer of 716b, and 716b is a barrier layer, and the

4th polymeric layer

719b, and 719b is diffusion layer and comprises freshness-prolongation agent.The 4th polymeric layer 719b directly with the 3rd layer of 716b adjacency.The 3rd layer of 716b can be polymeric layer.The second polymer layer 719a makes corresponding fresh degree-prolongation agent penetrate into this reclosable packages 710 inside via interior zone 717 in the selection area heat-sealing to the 4th polymeric layer 719b with unclamping.

This interior zone 717 can be to be curled into toward each other by the first and second freshness extending structure 714a, b.Shown in Fig. 9 a, this interior zone 717 forms between the second and the 4th polymeric layer 719a, b.Slight the curling of this freshness-extending structure can contact this freshness-prolongation agent with the inside of reclosable packages.Needing to have some in the embodiment that Fig. 9 a describes curls to help that this freshness-prolongation agent can be contacted with the inside of this reclosable packages or satchel.Just as discussed above, can use the relatively poor material of compatibility (i.e. the shrinkage factor difference of this material) thus forming this freshness-extending structure causes curling of this freshness-extending structure.

It is contemplated that in forming two freshness-extending structures and use extra play.For example, in Fig. 9 b, reclosable packages 730 comprises the first thermoplasticity main body panel, 712, the second thermoplasticity main body panel (not being presented among Fig. 9 b), first freshness-extending structure 734a, and second freshness-extending structure 734b.First and second main body panel along a pair of relative side and bridging link to each other in the bottom of this side so that form opening.First and second main body panel are connected to form the inner space that is used for stores.

The first freshness extending structure 734a comprises three layers and be liner or band.It is contemplated that first and second freshness-extending structure can form pouch or coating.First freshness-extending structure 734a comprises

ground floor

716a, and 716a is a barrier layer, comprises the second polymer layer 718a of freshness-prolongation agent, and terpolymer layer 720a, and 720a is a diffusion layer.Ground floor 716a can be a polymeric layer.The second polymer layer 718a is between first and the 3rd layer of 716a, 720a.Ground floor 716a is shown in Fig. 9 b, and it is connected in this Web materials, and this Web materials forms first main body panel 712 via adhesive or heat-sealing makes this freshness-prolongation agent be communicated with this inner space.Imagination can use other method of attachment such as machine tool such as clip or nail.

Similarly, second freshness-extending structure 734b comprises three layers and be liner or band.Second thermoplastic freshness-extending structure 734b comprises the 4th layer of 716b, and 716b is a barrier layer, and the

5th polymeric layer

718b, 718b comprise freshness-prolongation agent, and the 720b of the 6th polymer, and 720b is a diffusion layer.The 4th layer of 716b can be polymeric layer.The 5th polymeric layer 718b is between the 4th and the 6th polymeric layer 716b, 720b.Terpolymer layer 720a makes freshness separately-prolongation agent of the second polymer 718a layer and the 5th polymeric layer 718b be suitable for entering the inner space of this reclosable packages between terpolymer layer 720a and the 6th polymeric layer 720b in the selection area heat-sealing to the 6th polymeric layer 720b with unclamping.

Just as discussed above, interior zone 727 can be to be curled into toward each other by the first and second freshness extending structure 734a, 734b.Shown in Fig. 9 b, this interior zone 727 forms between the 3rd and the 6th polymeric layer 720a, 720b.

According to another embodiment, the reclosable packages 810 that shows in Figure 10 a comprises the first thermoplasticity main body panel 812a, the second thermoplasticity main body panel 812b, first freshness-extending structure 814a and second freshness-extending structure 814b.First and the second

main body panel

812a, 812b are along a pair of relative side and the continuous opening that consequently forms in bottom of this side of bridging.First and second main body panel are connected to form the inner space that is used for stores.

The first freshness extending structure 814a comprises bilayer and is liner or band.It is contemplated that first and second freshness-extending structure can be the form of pouch.First freshness-extending structure 814a comprises

ground floor

816a, and 816a is a barrier layer, and the

second polymer layer

819a, and 819a is diffusion layer and comprises freshness-prolongation agent.Ground floor 816a can be a polymeric layer.The second polymer layer 819a directly is adjacent to ground floor 816a.The ground floor 816a that is presented among Figure 10 a is connected in this Web materials, and this Web materials forms the first main body panel 812a via adhesive or heat-sealing.Imagination can be used other method of attachment.For being bonded in this Web materials, form the first main body panel 812a, ground floor 816a can comprise coating, this coating is sticking (sticky) also be not clamminess (tacky) at room temperature.Such coating during for example under high temperature or to infra-red radiation or heat exposure, can become thick.

Similarly, the second freshness extending structure 814b comprises bilayer and is liner or band.Second freshness-extending structure 814b comprises the 3rd layer of 816b, and 816b is a barrier layer, and the

4th polymeric layer

819b, and 819b is diffusion layer and comprises freshness-prolongation agent.The 3rd layer of 816b can be polymeric layer.The 4th polymeric layer 819b directly is adjacent to the 3rd layer of 816b.The 3rd layer of 816b that is presented among Figure 10 a is connected in this Web materials, and this Web materials forms the second main body panel 812b via adhesive or heat-sealing.It is contemplated that the method for attachment that to use other.For being bonded in this Web materials, form the second main body panel 812b, the 3rd layer of 816b can comprise coating, this coating is at room temperature not sticking not to be clamminess yet.Such coating during for example under high temperature or to infra-red radiation or heat exposure, can become thick.

It is contemplated that first freshness-extending structure and second freshness-extending structure can be to be formed by different components.For example, first structure can comprise first freshness-prolongation agent, and second structure can be second freshness-prolongation agent, and can comprise for example color indicator.In forming such embodiment process, first and second freshness-extending structure can, for example, by two different liners, band, pouch, extrude or form by applying two different coatings.

Changeablely be that this reclosable packages can be can't help two or more layer structures and be formed.For example, form by the material that has been fit to the barrier layer effect, then need not provide barrier layer if be used to form this Web materials of main body panel 812.In addition, shown in Figure 10 b, reclosable packages 830 comprises first freshness-extending structure 834a, and 834a comprises

ground floor

816a, and 816a comprises freshness-prolongation agent and 834a comprises the

second polymer layer

818a, and 818a is a diffusion layer.This reclosable packages 830 also comprises second freshness-extending

structure

834b, and 834b comprises the 3rd layer of 816b, and 816b comprises freshness-prolongation agent and the

4th polymeric layer

818b, and 818b is a diffusion layer.It is contemplated that first and second freshness-extending structure can make with different components, such as making with different freshness-prolongation agent or diffusion layer.

According to another embodiment, this reclosable packages can be by three or more multi-layered formation.For example, shown in Figure 10 c, comprise first freshness-extending structure 854a by the reclosable packages 850 that constitutes according to Web materials of the present invention, 854a comprises

ground floor

816a, 816a is a barrier layer, and the

second polymer layer

818a, 818a comprise freshness-prolongation agent, with terpolymer layer 820a, 820a is a diffusion layer.This reclosable packages 850 comprises second freshness-extending

structure

854b, and 854b comprises the 4th layer of 816b, and 816b is a barrier layer, and the

5th polymeric layer

818b, 818b comprise freshness-prolongation agent and the 6th polymeric layer 820b, and 820b is a diffusion layer.First and second freshness-extending structure 854a, b is connected to the first and second

main body panel

812a, 812b via adhesive or heat-sealing.It is contemplated that first and second freshness-extending structure can make with different components, such as making with different barrier materials or freshness-prolongation agent.

As previously described, this freshness of the present invention-prolongation agent can comprise activation system, and activation system is opened reclosable packages by the user or put into content therein and trigger.In some embodiments, describe such as the embodiment demonstration and according to Fig. 8, the activation system of this freshness of the present invention-prolongation agent is mechanical in essence.For example, in the embodiment of Fig. 8, this activation system comprises perforation or release system, and this system is in case separation causes this freshness-prolongation agent release.

Described according to the others that invention is above-mentioned, reclosable packages 910, by constituting, be presented among Figure 11 a according to Web materials of the present invention, comprise the first thermoplasticity main body panel 912a, the second thermoplasticity main body panel 912b, and be positioned over this freshness-extending structure 914 between them.First and the second main body panel 912a, 912b are along a pair of relative side and the continuous opening that consequently forms in bottom of this side of bridging.First and second main body panel are connected to form the inner space that is used for stores.This freshness-extending structure 914 can be liner or band shape, embodies as the application, and comprises three layers.Especially, this freshness-extending structure 914 of describing in Figure 11 a comprises ground floor 916a, and 916a is a barrier layer, and the second polymer layer 919,919th has the frangible diffusion layer of freshness-prolongation agent, and the 3rd layer of 916b, and 916b is a barrier layer.

Shown in Figure 11 a, the second layer 919 is disposable peelable elements, and 919 extend between the first barrier layer 916a and the second barrier layer 916b.Therefore the second layer 919 should disposable peelable element suppresses or prevents that this freshness-prolongations agent leakage when being positioned at its initial position of Figure 11 a demonstration from entering within the packing.

This disposable peelable element 921 can comprise one or more fluoropolymer resins and polyolefin, and can use together with previously described any freshness-extending structure.Polyolefin as disposable peelable element includes but are not limited to, polyethylene, polypropylene and combination thereof.Some nonrestrictive polyethylene kinds comprise low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE) (LLDPE), high density polyethylene (HDPE) (HDPE), medium density polyethylene (MDPE) and combination thereof.Other limiting examples comprise plastic body, elastomer, vinyl-vinyl acetate copolymer (EVA), EMA, polymethylpentene copolymer, polyisobutene, polyolefin ionomers, ring-type olefin copolymer (COC) or its combination, comprise with polyethylene and/or polypropylene together.

What the disposable peelable element of the second layer 919 can comprise disposable peelable preferred weakness zone or be similar to this preferred weakness zone preferably tears zone or previously described zone or the disposable peelable bonding or adhesive seal of tearing of the application.Changeablely be that the second layer 919 can be by crosslinked this diffusion material optionally to determine that this disposable peelable element forms.Usually, bonding must be firmer than the frangible part further as described below of this disposable peelable element between the second layer 919 and this adjacent layer, and this frangible part is connected part 919a with 919b.

Shown in Figure 11 b, the destruction of this disposable peelable element is divided into 919a of first and second portion 919b with the second layer 919, has exposed surface separately, and starts or strengthen the release of freshness-prolongation agent to it thus.Generally when primitively unpacking therein the placed content thing, the user can be taken place destroy disposable peelable element.

Show that in Figure 12 a another has in the above-mentioned embodiment of mechanical release mechanism, reclosable packages 1010 is by constituting according to Web materials of the present invention, comprise the first thermoplasticity main body panel 1012a, the second thermoplasticity main body panel 1012b, this freshness-extending structure 1014 and removable or peelable covering 1021.First and the second

main body panel

1012a, 1012b are along a pair of relative side and the continuous opening that consequently forms in bottom of this side of bridging.First and second main body panel are connected to form the inner space that is used for stores.This freshness-extending structure 1014 is liner or band forms and comprises bilayer, for example, ground floor 1016,1016th, and barrier layer and the second polymer layer 1019,1019th, diffusion layer and comprise freshness-prolongation agent.

Shown in Figure 12 a, this removable covering 1021 is similar to that of Fig. 8, but is connected in plate 1012b securely.This removable covering 1021 covers the second layer 1019 at least a portion, and, as shown, preferably cover the whole of this second layer 1019, otherwise 1019 in packing 1010 interior exposed.Shown in Figure 12 b, removing of covering 1021 makes this freshness-prolongation layer 1019 contact with the inside of packing 1010.And when opening, this packing starts or strengthens the release of freshness-prolongation agent thus at least to it.This embodiment of Figure 12 a and 12b is particularly suitable for refuse bag and lining thing etc.

Changeablely be, in some embodiments, this removable covering 1021 can cooperate with the slide block of the fastener of this reclosable packages 1010, so that when reclosable packages 1010 is opened via this slide block, and removable covering can layer be removed from this freshness-prolongation.

As above-mentioned, this theme Web materials can be used to form in the method for above-mentioned reclosable container.This Web materials is used as main body panel or the wall of film to construct above-mentioned reclosable packages.This Web materials or prepare by manufacture process independently or by a row formula and have the container of this Web materials in formation before.These containers comprise, still are not limited to rigid container, satchel, wrappage and thin slice.The Web materials that the embodiment of this above-mentioned demonstration relates to comprises ground floor, and this ground floor has the activating agent that carries by agent structure thereon.Now with reference to alternative Web materials structure of the present invention.

Figure 13 illustrates the described on the other hand Web materials 1300 according to the present invention.As illustrational, this Web materials 1300 is arranged in the volume 1301, and comprises bilayer 1320 and 1330, connects along contact-making surface 1310.Embody as the application, ground floor 1320 is preferably used as barrier layer and the second layer 1330 is preferably used as diffusion layer.Activating agent perhaps can be configured within the second layer 1330, perhaps between the ground floor 1320 and the second layer 1330.Ground floor 1320 as barrier layer, preferably suppress passing through of water and activating agent, and the second layer 1330 as diffusion layer, allows at least the activating agent steam to pass through.According to intended purpose, the second layer all is required water vapour and activating agent permeability.In certain embodiments, this diffusion layer is can be saturating but also be hydrophilic to water vapour not only.If requirement, increasing this barrier layer anti-permeability can realize by the thickness that increases this barrier layer.By contrast, and as above-mentioned, it is desirable that the water of prevention solid, liquid and vapor phase and activating agent pass this barrier layer.Can use described any obstruct of the application and diffusion material or other the material that is fit to.In preferred embodiments, for example, this barrier material comprises polypropylene (PP) or PETG (PET), and this penetration material comprises polymer, such as ethylene methyl acrylate (EMA), ethylene vinyl acetate (EVA) or nylon.

This Web materials of Figure 13 is advantageously from second layer surface release bioactive agent, and second layer surface can be close to food or other perishable farm products is arranged or arrangement.No matter this Web materials form be for example wrap up, material or satchel, this structure all is favourable.In addition, and on the other hand described according to invention, and second material layer has the material property that is predetermined.For example, if as food wrap, preferred described this diffusion layer of the application comprises enclosing characteristic, such as by inclusion or use one or more attachment material.Preferably, attachment material can be adsorbed to and/or adhere at least glass or canister.If as the cover cap material, this diffusion layer should be able to seal other plastic material.In above-mentioned embodiment, can select material at the material property that is predetermined, this material property that is predetermined is realized the function that requires.Preferably, still both are permeable to this material to water vapour and activating agent, allowing this activating agent of steam activation, and allow this activating agent to enter the inner space of this packing.

Attachment material can comprise that this material of material is selected from linear low density polyethylene (LLDPE), linear ultra-low density polyethylene, polyethylene and ethylene copolymers, ethene-alpha-olefin copolymer, polyisobutene, random polypropylene, cis polybutadiene, brombutyl, vinyl-vinyl acetate copolymer (EVA), ethyl-methyl acetate (EMA) and combination thereof.Selected attachment material is disclosed in U.S. Pat 4,624, and 991, U.S. Pat 6,500,901, U.S. Pat RE38,658, U.S. Pat 4,348,455, U.S. Pat 5,334,428, U.S. Pat 6,083,611 and U.S. Pat 4,430,457, above-mentioned each piece full text is introduced the application.

If this Web materials is as cover material, this Web materials can comprise, still need not be confined to polymer, the polyvinylidene chloride of metal forming, PETG, nylon, metal lining, and ethylene-vinyl alcohol copolymer.

In addition, according to of the present invention, Web materials can comprise at least three material layers.Figure 14 illustrates this Web materials 1300 that

Web materials

1400,1400 is similar to Figure 13, and difference is that it comprises three such material layers.This Web materials comprises first material layer 1440, and preferred 1440 is barrier layers, second material layer 1430, and preferred 1430 is active agent layer, and the 3rd material layer 1420, the three material layers 1420 functional layer 1420 preferably.At least one of this active agent layer 1430 or this functional layer allow water and activating agent steam to pass through preferably as diffusion layer.This functional layer 1420 has the material property of being predetermined, and adheres to and/or sealing property such as providing, and should see through the activating agent steam.Therefore, need be used for the material of this functional layer 1420, this material not only provided this material property that is predetermined but also had been suitable for makes activating agent steam and water vapor diffusion layer.Advantageously, with comparing that Figure 13 embodiment is showed, the quantity of functional layer can reduce.

In the embodiment of Figure 13 and 14, multilayer is coextrusion during preparation, perhaps can be connected to each other after extruding.Interconnect can realize in the mode that is fit to arbitrarily and can comprise that spraying, dipping, static state are bonding, printing, co-extrusion, non-electro-deposition, curtain coating, vapour deposition, heat-sealing and/or embedding and other method.In addition, these layers can be to do equal the extension, and perhaps some layer can extend the layer that is distal to other.Other variation and change are described in further detail.Quantity that activating agent discharges from this Web materials and speed can be by adjusting this activating agent concentration and/or the diffusion characteristic of this diffusion layer control.

According on the other hand described, this present invention includes Web materials, and this Web materials is disposed on first material layer with strip form.Figure 15 and 16 illustrates the axonometric drawing and the end-view of Web materials 1500 respectively, and the ground floor 1510 and the second layer 1530 wherein are provided, and wherein activating agent disposes with striped 1540 forms.This striped can be incorporated into first and the second layer in one deck, perhaps as Figure 16 describe be arranged in first and the second layer between.As above-mentioned, in the ground floor 1510 of the application's concrete manifestation and the second layer 1530 at least one deck be barrier layer, other is a diffusion layer, at least can be saturating to the activating agent steam.As indicated above, water vapour can be used to start this activating agent and discharge; Therefore, this diffusion layer is also preferred can be saturating to steam.Therefore the width of striped 1540 can be that making of being scheduled to provides the activating agent of institute's requested number in the precalculated position.The width of striped changes to the layer that extends to whole Web materials basically comprehensively from fine rule.As above-mentioned, combinable activating agent quantitative range is adjusted the activating agent quantity that discharges from this Web materials thus.If require more activating agents, for example, thereby can use wide striped 1540.Still less can provide narrow strips 1540 if require.Similarly, can pass through the position of the Position Control activating agent of this striped.The relative populations of the covering that provides by striped 1540 refers to ＂ activating agent zone ＂ in the application.As conspicuous in the specification subsequently, this activating agent zone is not limited to straight line or striped, but can comprise another configuration, comprises being used for the pattern that activating agent of the present invention is used.In pattern, this activating agent need not cover the applied Zone Full of this activating agent, and therefore, allows to take the circumstances into consideration to adjust further the activating agent that can supply.

Figure 17 illustrates Web materials 1700 of the present invention, and wherein activating agent is arranged on the material fibre web 1710 with pattern 1720.This material fibre web can be the material that is fit to arbitrarily, but preferably include barrier material.In addition, this material fibre web 1710 can comprise that at least a material property that is predetermined is to provide the feature such as adhering to or sealing.In illustrational embodiment, this pattern 1720 is by

border

1750a and 1750b restriction, and it limits the activating agent region R.In this embodiment, activating agent only is used as the part of this pattern.As this figure performance, if this activating agent is arranged in the pattern, then this activating agent zone can dwindle.This activating agent can be used with the pattern of unrestricted kind via for example galley, roller, brush or ink-jet.In certain embodiments, this activating agent and color indicator are arranged together.Such indicator can also or be applied in the pattern separately with this activating agent.In addition, this pattern and/or this activating agent of other existence form arbitrarily can comprise that colouring agent is to provide desired aesthetic effect.Therefore, if requirement can provide coloured image, such image also carries activating agent.

As the replacement of Figure 15 embodiment, Figure 18 illustrates Web materials 1800, and according to of the present invention, wherein first material layer 1810 by this Web materials 1800 carries, and 1810 itself provide activating agent 1830 to roll up 1801.According to of the present invention, this Web materials comprises ground floor, and it is barrier material preferably, and the activating agent that carries by first material layer.Expressed as the application, and describe as Figure 18, and wherein activating agent disposes with strip form.Changeable is that this activating agent can be incorporated into this Web materials.In this embodiment, need to use to this activating agent be permeable material as first material layer, 1810 materials so that in case activation, this activating agent steam can discharge from this Web materials 1800.Therefore, more preferably be applicable to the material of diffusion material, be used for the part of this Web materials 1800 at least, this Web materials 1800 comprises activating agent 1830.For the activating agent that suppresses to activate and discharge enters this surrounding environment, the embodiment of Figure 18 can be equipped with barrier material.This barrier material can be lamination or with 1810 coextrusion of first material layer to form other Web materials, for example lapping or cover cap material the volume, decide according to selected material.

In a step co-extrusion step, first material layer 1810 can be extruded with illustrational this activating agent 1830.The modularization die head can be used for this purpose, such as found those, for example, in U.S. Pat 5,762,971, among US 6,413,595 and the US 6,000,926.This activating agent can with the premixed that is used for first material layer 1810, be used for the die head zone that activating agent band 1830 extrudes or be injected into the extrusion die part simply in appointment.In addition, this Web materials 1800 can possess removable release liner, and is as described below, such as paraffin paper, before using, prevents the activating agent that discharges in advance thus.In case take out from rolling up 1801, can remove so removable release liner and discharge to allow activating agent.Therefore, the release liner that preferably has abundant barrier property.

According on the other hand of the present invention, Figure 19 illustrates Web materials 1900, and wherein activating agent material striped is to be used to the surface of basic material fibre web 1920 with 1930 form.And then this Web materials 1900 can be by the later step of any amount or processes.This Web materials 1900 can form packing, as satchel, heat-sealing edge and connection reclosable fastener, words if desired.Changeablely be, this Web materials can be by in conjunction with other material layer, further prepare such as the material layer with the material character that is predetermined, and the material character that is predetermined comprises permeability, tack or sealing characteristics.Changeable or other is the selectivity activation that can dismantle and can be used for this activating agent.

Although, if desired, can use simple layer, this material fibre web 1920 can have along contact-making surface, as the multilayer of contact-making surface 1910 connections.The material that is used for this Web materials 1900 preferably includes at least one barrier layer.And from then on band preferably includes the performance of diffusion layer passes through to allow activating agent.What comprise activating agent is with 1930, can use via bonding, heat-sealing, sonic welded or other method of attachment, states as the application.Changeable is that this is with 1930 can extrude simultaneously with material fibre web 1920, and is connecting between shaping period or after moulding.

This Web materials with activating agent, the freshness extending structure with its combination for example of the present invention, if as liner, band, perhaps pouch configuration can be connected in packing ratio such as reclosable satchel by pressure-sensitive Autoadhesive.This pressure-sensitive Autoadhesive can be the adhesive that is fit to arbitrarily, and it makes this freshness-extending structure be attached to this reclosable packages.The limiting examples of suitable contact adhesive comprises acrylic compounds or rubber-based adhesive.When the pouch of antimicrobial can utilize in certain embodiments, more preferably flat relatively Web materials.

If provide with band or liner form, then this freshness-extending structure can roll-type charging (roll fed) to this Web materials, as shown in figure 19.Freshness-the extending structure of this roll-type charging can comprise that at first release liner is to assist this freshness-extending structure of correct placement.This release liner, if you are using before this band or liner are connected in this reclosable Web materials, separates from this roll-type charging freshness-extending structure.The example of release liner comprises silicon-art paper.Changeable is that this freshness-extending structure can be the roll-type charging, and if do not use the release liner requirement before being connected in this Web materials.In addition, this freshness-extending structure can be magazine feed (magazine fed) during being connected to this reclosable packages.

According to another embodiment, this freshness-extending structure liner, band or pouch can be directly to seal or be welded as this Web materials.For example, this freshness extending structure can be roll-type charging or magazine feed before being heat-sealed or being welded as this reclosable packages.In the heat-sealing embodiment, can not need release liner.This freshness-extending structure can be connected to this Web materials time and again, perhaps is connected in selected zone, if requirement.Changeable is that during the formation of packing, this freshness-extending structure can be connected in main body panel.For example, this freshness-extending structure can be expanded between this side seal, and this side seal is formed between first and second main body panel, so that fixes by side seal.Imagination can be used other method of attachment.

Figure 20 is the axonometric drawing according to the other embodiment of Web materials on the other hand 2000 of the present invention, is included in the activating agent of using in the pattern 2031,2033 of basic unit.This pattern 2032,2033 can be used to this basic material fibre web 2010 by the pattern that is fit to arbitrarily as described in the present application.For example, repeat print pattern, such as this sign 2033 or cross-hatch pattern 2031 can be via Plate making printing pattern such as Expiration Date, brand name, product content or other transformable text, can be via ink jet printing.If requirement, activating agent can be with the printed text arranged in form.And, the color indicator, describe such as the application, can utilize-and improve the functional of packing.The Web materials of other that describe with the application is the same, and this Web materials 2000 can be used for forming any various article, comprises parcel, cover cap coiled strip (lidstock) and satchel.According to of the present invention, arbitrarily the material that is fit to, such as above-mentioned those, can be used for forming this Web materials 2000.Preferably, the material fibre web 2010 of this Web materials 2000 is that barrier material so that this activating agent can not discharge or from the wall seepage of packing because of carelessness.

Figure 21 is the axonometric drawing according to the other embodiment of Web materials of the present invention, illustrates the exploded view of the reclosable satchel 2100 that is formed by this Web materials 2110.As shown, sign 2130 is arranged on the main body panel of satchel 2100.This satchel 2100 is produced by a kind of Web materials 2110, and is folding along folding line 2150, perhaps can be made up of a plurality of different Web materials, have activating agent such as first Web materials, and second Web materials has or do not have activating agent.The same with the embodiment of Figure 20, this sign 2130 can comprise activating agent therein, and can be used to this Web materials 2110 via for example printing.Changeablely be, before this Web materials 2110 forms these reclosable satchels 2100, this sign 2130 can be arranged on the liner, in any as mentioned above embodiment, this liner is attached to this Web materials 2110.Preferably, such liner is used to this Web materials 2110 at regular intervals, and it makes and in a single day should packing be formed by this Web materials 2110 that this liner just is disposed in each satchel or the packing substantially.And, if reclosable fastener portion 2170a, 2170b are used to this Web materials 2110 requirements, and the main body panel sealing-in that constitutes by this Web materials 2110 and form this final satchel thus.

This reclosable packages such as reclosable satchel 2100 or reclosable packages 10 (Fig. 1), can be to be formed by the material that is fit to arbitrarily, such as by being fit to the thermoplastic of storage or collection object, comprises the perishable memory.Example comprises that the reclosable packages of common size is such as pint memory and freezer bag, quart memory and freezer bag and gallon memory and freezer bag.This reclosable packages is usually formed such as polyolefine material by polymeric material.The limiting examples of polyolefine material comprises polyethylene, polypropylene, polystyrene, and combination.For example: the polythene material of some kinds comprises high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE) (LLDPE), and combination.It is also contemplated that olefin copolymer (COC) or its combination of material such as plastic body, elastomer, vinyl-vinyl acetate copolymer (EVA), EMA, polymethylpentene copolymer, polyisobutene, polyolefin ionomers, ring-type.Comprise the polyethylene and/or the polypropylene that can be used for forming the reclosable packages that the present invention is somebody's turn to do.The thickness of this reclosable packages can change among the present invention, but usually from about 0.5 mil to about 5 mils and, more particularly, from about 1 mil to about 3 mils.

Before described as the application, this freshness of the present invention-prolongation agent can be used to make up to form the package main body panel with Web materials.Replace and/or combination, this freshness of the present invention-prolongation agent can be used to partly make up with the fin of the fastener of reclosable packages 270, as application number is that 11/055,574 common unsettled U.S. Patent application further describes, and the full content of this application is clearly introduced the application as a reference.

Figure 22 is the axonometric drawing according to the preferred embodiment of Web materials of the present invention, and wherein this Web materials 2212 has formed reclosable satchel 2200 with the striped 2230 of activating agent.This Web materials can comprise described any feature of the application and structural material.Expressed as the application, provide reclosable fastener 2240, and this striped 2230 extends to 2200 whole width of satchel, preferably is right after the mouth of satchel.That this Web materials 2212 that is used to form this satchel 2200 can comprise is that any the application states, for instance, such as

Web materials

1500,1700,1800,1900,2000 and 2300.

Figure 23 is the axonometric drawing according to the other embodiment of Web materials of the present invention, and wherein this Web materials 2300 comprises a plurality of striped 2330a, the 2330b of the activating agent that is provided on the basic material 2310.With Fig. 9 a, the embodiment of 9b, 10a, 10b, 10c, 11b and 12b is the same, and this activating agent can provide with a plurality of parts.When this Web materials 2300 during preparation is along the line 2313 when folding, striped 2330a, 2330b snap to together usually.The application state any feature, particularly with Fig. 9 a, 9b, 10a, 10b, 10c, 11b and 12b describe relevant feature can be used to this Web materials 2300.

Changeable is that this Web materials 2300 can be to form parcel or cover cap material, rather than along the line 2313 is folding.When specifically as wrappage or cover cap material, functional layer (for example, salable layer or adhesion layer) can be arranged in abutting connection with basic material 2310 and striped 2330a, 2330b place.Be similar to previous embodiment, this functional layer is permeable to allow this activating agent to discharge from this Web materials to the activating agent steam preferably.Changeable is if that according to the specified material manufacturing, this basic material and striped 2330a, 2330b can provide such function.

Figure 24 and 25 surveys and side view according to the axle of the other embodiments of Web materials of the present invention, and wherein this Web materials 2400 is included in the striped 2430 of the activating agent of central orientation.As above-mentioned embodiment, this Web materials 2400 can be folding along center line 2413.Both can be connected in this activating agent striped 2430 and reclosable fastener 2550 this base web material 2410 or integrally form with it.Changeable is that the same with each embodiment of the application, this activating agent can be incorporated in this Web materials 2410.For instance, the satchel that is formed by Web materials 2400 embodiments can be used for such occasion: the background that activating agent need be placed on this satchel bottom.And, can be used to this embodiment in the embodiment features relevant of above stating with other.

Figure 26 is the axonometric drawing of container 2600, and it has expressed Web materials other embodiments of the present invention, and wherein this Web materials 2610 is the cover cap materials that are used for base portion or container 2640.As above-mentioned, for instance, as relevant with the embodiment of Figure 13 and 14, this cover cap material can comprise two or more multi-layered, wherein can seal in abutting connection with the layer of container 2640.This bottom 2620 preferably can see through the activating agent steam so that the activating agent that allows to discharge enters the vessel space 2645 of packing.The material that is fit to, as described previously, when requiring to remove, can relatively easily remove from this container 2640.This outermost layer is barrier material preferably, barrier material from above the statement those pick out.

Although show and described disclosed Web materials, those skilled in the art recognize that and/or can determine many equivalents with those embodiments with activating agent with reference to illustrated embodiment.Such equivalent is contained by the application's disclosure and appended claim.

For example, those of ordinary skills should understand packing and the container that the present invention is applied to various types, comprise that non-reclosable satchel and lining, rigid container are such as plastic containers, lunch container, hard refuse container, perishable parcel and thin slice, such as food wrap and agricultural and/or industry parcel and cover cap material etc.Similarly, those skilled in the art will appreciate that the present invention use activating agent except that freshness-prolongation agent, such as odor management agent and provide the function that requires or to packing or be placed on other reagent that content wherein exerts an influence.

Unless otherwise prescribed, when article ＂ a ＂ or ＂ an ＂ are used for the application with modification noun, be understandable that they comprise a kind of or more than this a kind of modification noun.

Claims

1. satchel, it comprises:

A pair of relative main body panel, this main body panel links together along a pair of relative side and the bottom of this side of bridging, thereby determines a compartment between relative main body panel;

Comprise by formed at least one main body panel of fibre web:

First material layer that constitutes by barrier material, and

The activating agent of the first material layer load, this activating agent contacts with this compartment.

2. the satchel of claim 1, wherein barrier material can suppress water by its transfer.

3. the satchel of claim 1, wherein barrier material can suppress activating agent by its transfer.

4. the satchel of claim 1, wherein activating agent places on first material layer with the form of coating.

5. the satchel of claim 1, wherein activating agent places on first material layer with the form of striped.

6. the satchel of claim 5, its split shed is limited between the paired panel, and relative with the bottom, the striped of being arranged is pressed close to this opening.

7. the satchel of claim 1, wherein activating agent places on first material layer with the form of pattern distribution.

8. the satchel of claim 1, wherein activating agent is with the arranged in form of microcapsules.

9. the satchel of claim 1, wherein activating agent is by arranging with the barrier material coextrusion of first material layer.

10. the satchel of claim 1, wherein activating agent is selected from freshness-prolongation agent, antimicrobial, odor management agent, color indicator, the indicator that addles, aromatic and combination thereof.

11. the described satchel of claim 1 further comprises second material layer with predetermined material performance.

12. the satchel of claim 11, wherein the predetermined material performance comprises the permeability to activating agent.

13. the satchel of claim 11, wherein the predetermined material performance comprises the permeability to water.

14. the satchel of claim 11, wherein activating agent is arranged in the intermediate layer between first material layer and second material layer.

15. the satchel of claim 11, wherein the predetermined material performance comprises sealing characteristics.

16. the satchel of claim 15, wherein sealing characteristics comprises at least a in heat-sealing, cold envelope, ultrasonic wave, frictional behavior, adhesiveness or the caking property.

17. the satchel of claim 11, wherein second material layer is hydrophilic.

18. the described satchel of claim 11 further comprises one deck extra play at least, this extra play places between the activating agent and first material layer.

19. the satchel of claim 11, wherein this second material layer is made of barrier material, and this second material layer can be removed from first material layer.