CN102985250B - The flexible material strengthened and the goods be made up of it - Google Patents
The flexible material strengthened and the goods be made up of it Download PDFInfo
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- CN102985250B CN102985250B CN201180033898.7A CN201180033898A CN102985250B CN 102985250 B CN102985250 B CN 102985250B CN 201180033898 A CN201180033898 A CN 201180033898A CN 102985250 B CN102985250 B CN 102985250B
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/22—Making webs in which the channel of each corrugation is longitudinal with the web feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/88—Printing; Embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
- B31F2201/0723—Characteristics of the rollers
- B31F2201/0733—Pattern
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Bag Frames (AREA)
Abstract
The invention discloses a kind of flexible membrane and comprise the goods of described film, described film comprises often kind in the second band that multiple first band of intertexture and contiguous first band arrange.First band and the second band all have length and width; First band comprises the first film basic weight and first area and second area.First area and second area comprise identical material composition.When described sheet material stands applied elongation along at least one axis, first area experiences molecular-level deformation and second area initially experiences geometry deformation substantially substantially.Second is with the multiple ripples comprising the second film basic weight and arrange along the length of described band.In this, described material can be described to have SELF film strips alternately and looping mill rolling film strips.
Description
Invention field
The present invention relates to the flexible polymeric film strengthened for physically and the goods comprising this type of film.The invention particularly relates to the goods that there is the physical arrangement of enhancing and the flexible polymeric film of performance and be made up of it.
background of invention
Polymer film in the art as the goods be made up of this class film such as preserve with the bag of waste treatment and well known.The geometry changing this film while the known basic weight keeping flat film likely gives class elastic performance to this film and the goods made by modified film.Usually directly relevant with the basic weight of quantity of material existing in end article and/or film used to the cost that this type of film and goods are associated.Film can be stretched to reduce film specification and the quantity of material therefore reduced for given unit are.This type of stretches or specification reduces art and can advantageously affect the cost be associated with finished product, but the cost usually done like this is, causes the performance of film and goods to reduce because film specification and the basic weight that is associated reduce.
Expect a kind of reduction to the material requirements of film and corresponding goods and inequivalence reduce the method for the performance of film and goods.
summary of the invention
In one aspect, a kind of flexible membrane comprises often kind in multiple first band of intertexture and the second band of contiguous first band setting.First band and the second band all have length and width, and first is with and comprises the first film basic weight and first area and second area.First area and second area comprise identical material composition.When described sheet material stands applied elongation along at least one axis, first area experiences molecular-level deformation and second area initially experiences geometry deformation substantially substantially.First area and second area are visually different each other.Second area comprises the ribbed element of multiple projection and first area is substantially free of ribbed element.Second is with the multiple ripples comprising the second film basic weight and arrange along the length of this band.In this, described material can be described to have SELF film strips alternately and looping mill rolling film strips.
In one aspect, a kind of flexible pouch comprises at least one piece of flexible sheet material tablet, and described flexible sheet material tablet is assembled to be formed the semienclosed container with the opening limited by periphery.Piece of flexible material comprises often kind in multiple first band of intertexture and the second band of contiguous first band setting.First band and the second band all have length and width, and first is with and comprises the first film basic weight and first area and second area.First area and second area comprise identical material composition.When described sheet material stands applied elongation along at least one axis, first area experiences molecular-level deformation and second area initially experiences geometry deformation substantially substantially.First area and second area are visually different each other.Second area comprises the ribbed element of multiple projection and first area is substantially free of ribbed element.Second is with the multiple ripples comprising the second film basic weight and arrange along the length of this band.In this, described material and bag can be described to have SELF film strips alternately and looping mill rolling film strips.
accompanying drawing is sketched
Fig. 1 is the diagrammatic plan view of a part for the material of bag of the present invention, shows symmetrical pattern;
Fig. 2 is the diagrammatic plan view of a part for the material of bag of the present invention, shows asymmetric pattern;
Fig. 3 A is the blocked perspective view of the polymeric film material of the flexible pouch of the present invention being in non-tension substantially;
Fig. 3 B is the blocked perspective view of the polymeric film material according to flexible pouch of the present invention being in partly tension;
Fig. 3 C is the blocked perspective view of the polymeric film material according to flexible pouch of the present invention being in further tension;
Fig. 4 is the diagrammatic plan view of a part for the material of bag of the present invention, shows symmetrical pattern;
Fig. 5 is the diagrammatic plan view of a part for the material of bag of the present invention, shows asymmetric pattern;
Fig. 6 is the diagrammatic plan view of a part for the material of bag of the present invention, shows symmetrical pattern;
Fig. 7 is the perspective illustration of the bag according to one embodiment of the invention.
detailed Description Of The Invention
As used herein, basic weight refers to the weight of per unit area.Basic weight available units lbs/ft
2or g/m
2represent.
As used herein, term " flexibility " is in order to refer to following material, and they can be bent or bend, especially repeatedly flexure or bending, makes them be easy to bending in response to applied force and can surrender.Therefore, " pliable and tough " the meaning on substantially with term not deflection, rigidity or non-yielding relative.Therefore, flexible materials and structures can be done change to adapt to external force and conform to the shape of the object contacted with them and do not lose its integrality in shape with structure.The flexible pouch of this usual life type is formed by the material all in whole bag structure with consistent physical property usually, described physical property for such as stretching, strain and/or elongation and material basis weight.
Referring now to Fig. 3 A, the first band 52 comprises zones of different " can strain network ".As used herein, term " can strain network " and refer to interconnection and one group of relevant region, and described region can extend to certain useful degree in a predetermined direction, thus provides elastic-like behaviour in response to the additional and elongation discharged subsequently to the first band.Network can be strained and comprise at least first area 64 and second area 66.First band 52 comprises the transitional region 65 at the contact surface place between first area 64 and second area 66.Transitional region 65 will show the complex combination of the behavior of first area and second area.Have realized that this type of all will have transitional region according to each embodiment of the first applicable band of the present invention; But this type of band is limited by the behavior of first area 64 and second area 66.Therefore, explanation subsequently will pay close attention to the first behavior of being with in first area and second area, only because described behavior does not rely on the complex behavior of the first band in transitional region 65.
First band 52 has first surface 52a and relative second surface 52b.In the embodiment shown in Fig. 3 A, network can be strained and comprise multiple first area 64 and multiple second area 66.In one embodiment, first area 64 has first axle 68 and the second axis 69, and wherein first axle 68 to the second axis 69 is longer.The first axle 68 of first area 64 is arranged essentially parallel to the longitudinal axis " L " of the first band 52, and the second axis 69 is arranged essentially parallel to the axis of pitch " T " of the first band 52.In one embodiment, second axis (width of first area) of first area is about 0.01 inch to about 0.5 inch.In one embodiment, be about 0.03 inch to about 0.25 inch.Second area 66 has first axle 70 and the second axis 71.First axle 70 is arranged essentially parallel to the longitudinal axis of the first band 52, and the second axis 71 is arranged essentially parallel to the axis of pitch of the first band 52.In one embodiment, second axis (width of second area) of second area is about 0.01 inch to about 2.0 inches.In one embodiment, be about 0.125 inch to about 1.0 inches.In the embodiment of Fig. 3 A, first area 64 and second area 66 are substantial linear, and it extends continuously on the direction of longitudinal axis being arranged essentially parallel to the first band 52.
First area 64 has elastic modulus E 1 and cross-sectional area A 1.Second area 66 has modulus E2 and cross-sectional area A 2.
In the embodiment illustrated, when standing applied axial elongation on the direction being arranged essentially parallel to longitudinal axis, first band 52 is made the first band 52 show drag along axis by " shaping ", and described drag is arranged essentially parallel to this fibroreticulate longitudinal axis in the situation of shown embodiment.As used herein, term " shaping " refers to the structure or geometry that form expectation on the first tape, and described first band is when it is without undergoing the structure that will substantially keep when any applied force elongation or applied force expecting or geometry.First band of the present invention comprises at least first area and second area, and wherein first area is visually different from second area.As used herein, term " visually different " refers to the feature of the first band, and when the object that the first band or embodiment first are with stands normally to use, described feature is easy to be distinguished by normal naked eye.As used herein, term " surface-pathlength " refers on the direction being arranged essentially parallel to axis, the measurement that the topographical surface along the region considered carries out.Method for the surface-pathlength measuring respective regions is found in " method of testing " part that on February 28th, 1994 authorizes the United States Patent (USP) 5,518,801 of the people such as Chappell.
Method for the formation of this type of the first band used in the present invention includes but not limited to by matching board or roll-in flower, thermoforming, high-pressure and hydraulic is shaping or cast.Although the whole part of fleece 52 is all by forming operation, the present invention also can be implemented as and stand the shaping of only its part, and the part comprising bag main body 20 of such as this material, as hereafter described in detail.
In the embodiment shown in Fig. 3 A, first area 64 is plane substantially.That is, the material in first area 64 was in substantially the same state before and after fleece 52 experiences forming step.Second area 66 comprises the ribbed element 74 of multiple projection.Ribbed element can be embossing, depression or their combination.Ribbed element 74 has the first axle of the axis of pitch being arranged essentially parallel to fleece 52 or long axis 76 and is arranged essentially parallel to the second axis of longitudinal axis or the minor axis 77 of fleece 52.The length being parallel to the first axle 76 of ribbed element 74 at least equals the length being parallel to the second axis 77, and longer than the length being parallel to the second axis 77 in one embodiment.In one embodiment, the ratio of first axle 76 and the second axis 77 is at least about 1: 1 or larger, and is at least about 2: 1 or larger in another embodiment.
Ribbed element 74 in second area 66 can be spaced by non-forming area.In one embodiment, ribbed element 74 is located adjacent one another and separated by non-forming area and be less than 0.10 inch, measured by the long axis 76 perpendicular to ribbed element 74.In one embodiment, ribbed element 74 is continuous print, does not substantially have non-forming area between which.
First area 64 and second area 66 have " projected pathlength " separately.As used herein, term " projected pathlength " refers to the length of the shade in certain region projected by directional light.The projected pathlength of first area 64 and the projected pathlength of second area 66 are equal to each other.
First area 64 has surface-pathlength L1, and it is less than the surface-pathlength L2 of second area 66, described surface-pathlength be when this fleece is in non-tension on the direction of longitudinal axis being parallel to fleece 52 along topographic.In one embodiment, the surface-pathlength of second area 66 than the surface-pathlength of first area 64 greatly at least about 15%.In one embodiment, than the surface-pathlength of first area greatly at least about 30%.In one embodiment, than the surface-pathlength of first area greatly at least about 70%.In general, the surface-pathlength of second area is larger, then this fleece just will be larger running into the elongation before power wall.Suitable technology for measuring the surface-pathlength of this type of material is described in referenced above and is incorporated in the patent of the people such as Chappell above.
First band 52 shows " the Poisson side direction blockage effect " of improvement, and it is substantially less than and in other words forms the same base formed fibroreticulate Poisson side direction blockage effect by similar material.Method for the Poisson side direction blockage effect measuring material is found in referenced above and is incorporated to " method of testing " part of the patent of the people such as Chappell above.In one embodiment, when being applicable to fleece of the present invention and standing the elongation of about 20%, this fibroreticulate Poisson side direction blockage effect is less than about 0.4.In one embodiment, when this fleece stands about 40,50 or even 60% elongation time, this fleece shows the Poisson side direction blockage effect being less than about 0.4.In one embodiment, when this fleece stands the elongation of 20,40,50 or 60%, Poisson side direction blockage effect is less than about 0.3.This type of fibroreticulate Poisson side direction blockage effect depends on the amount of the web material respectively occupied by first area and second area.When the area of the first band occupied by first area increases, Poisson side direction blockage effect also strengthens.On the contrary, when the area of the first band occupied by second area increases, Poisson side direction blockage effect then weakens.In one embodiment, the first area percentage be with occupied by first area is about 2% to about 90%.In one embodiment, be about 5% to about 50%.
The first axle 76 of ribbed element 74 is substantially perpendicular to for the first band 52, the direction D (being indicated by front 80 in figure 3 a) of applied axial elongation.Ribbed element 74 can stretch or geometrically be out of shape to allow the extension in fleece 52 occurs on the direction of first axle 76 being substantially perpendicular to them.
Referring now to Fig. 3 B, when the fleece of the first band 52 stands applied axial elongation D (being indicated by front 80 in figure 3b), the first area 64 with shorter surface-pathlength L1 provides most initial resistive force P1 due to molecular-level deformation to applied elongation.In this stage, the ribbed element 74 in second area 66 is just experiencing geometry deformation or is stretching, and provides minimum impedance to applied elongation.In the process to next stage transition, ribbed element 74 becomes align with applied elongation (that is, coplanar with it).That is, second area shows the change from geometry deformation to molecular-level deformation.This is the beginning of power wall.In the stage shown in Fig. 3 C, ribbed element 74 in second area 66 become substantially with the planar registration of applied elongation (namely, coplanar with it) (that is, second area has reached the limit of its geometry deformation) start further to extend via molecular-level deformation impedance.Second area 66 is now because molecular-level deformation provides the second drag P2 to further applied elongation.Form total drag PT by the molecular-level deformation of first area 64 and the molecular-level deformation of second area 66 to extending the drag provided, described total drag is greater than the drag provided by the geometry deformation of the molecular-level deformation of first area 64 and second area 66.
When (L1+D) is less than L2, drag P1 is greater than drag P2 substantially.When (L1+D) is less than L2, first area provides initial resistive force P1, the following formula of general satisfaction: P1=(A1 × E1 × D)/L1.When (L1+D) is greater than L2, first area and second area provide total drag PT of merging to applied elongation D, the following formula of general satisfaction: PT=((A1 × E1 × D)/L1)+((A2 × E2 × | L1+D-L2|)/L2).
Before reaching the stage shown in Fig. 3 C, be moulding material fibroreticulate " available stretch " corresponding to the maximum elongation occurred in the stage of Fig. 3 A and 3B.Available stretch corresponds to the distance of second area experience involved by geometry deformation.The excursion of available stretch can be about 10% to 100% or larger, and can exceed the degree of the surface-pathlength L1 in first area by the surface-pathlength L2 in second area substantially and control forming of basement membrane.Term available stretch is not intended to the elongation limit that implicit fleece of the present invention can stand, because there is following application, the elongation wherein exceeding available stretch expects.
When the first band stands applied elongation, the first band extends and just returns back to its non-tension (unless the first band is extended exceeded yield point) substantially once removing applied elongation on the direction of applied elongation, at this moment shows elastic-like behaviour.First band can experience repeatedly cycles of applied elongation and not lose their ability of substantially restoring.Therefore, once removing applied elongation, this fleece just can return back to its non-tension substantially.
Although the first band can easily and extend reversibly on the direction of applied axial elongation, on the direction of first axle being substantially perpendicular to ribbed element, this web material can not equally easily extend on the direction of first axle being arranged essentially parallel to ribbed element.The shaping permission ribbed element of ribbed element is geometrically out of shape on the direction of the first axle or long axis that are substantially perpendicular to ribbed element, requires that molecular-level deformation extends on the direction of first axle being arranged essentially parallel to ribbed element substantially simultaneously.
The composition of the first band and the width of cross-sectional area and first area and spacing is depended in order to the stressed amount extended needed for this fleece, wherein for given composition and cross-sectional area, first area that is narrower and more broadly interval requires that lower additional stretching force is to obtain the elongation expected.The first axle (that is, length) of first area is greater than first area the second axis (that is, width) in one embodiment in one embodiment, and wherein the ratio of length and width is about 5: 1 or larger.
Also the degree of depth of ribbed element and frequency can be changed to control the fibroreticulate available stretch according to the first applicable band of the present invention.If increase available stretch for the given frequency of ribbed element, then increase the height giving ribbed element or forming degree.Similarly, if increase available stretch for assigned altitute or forming degree, then the frequency of ribbed element is increased.Ribbed element depth or frequency is selected to stretch (basic weight reduction) to balance the mechanical performance of overall film and goods to band 2.Obtain critically to approach band 1 to method required shaping in band 2 by the described band mechanical performance separately of the sufficient size for testing.For using the shaping of formed solid method, this can be used for the DOE of each band by change and make this DOE be relevant to overall film performance to obtain.The preferably performance of one group of accurate coupling.Gained machining tool can use band 1 to design the different pattern in band 2 and machining tool height.Be not intended to be restricted, it is believed that if the width of the second band is constrained to be less than 0.75 inch and the width being preferably less than 0.5 inch, then the design that described performance is best and attractive in appearance by coupling.Without restriction, it is believed that optimum performance will produce following design, wherein the width of the second band is less than 0.75 inch and is preferably less than 0.5 inch, and the width of the second band is no more than 60% of the width summation of the first band and the second band.If comprised in this design more than two bands, then it is believed that the second band should be no more than the 60^ of the width summation of all regions.
There is several functions performance, by by this type of materials application in flexible pouch of the present invention, described several functions performance can be controlled.These functional performances are the available stretch that the first band resisted drag that applied elongation applies and the first band before running into power wall.The percentage of the proj ected surface areas of the first band that the drag that applies depends on this material (such as, form, molecular structure and orientation etc.) and cross-sectional area and occupied by first area by the first band opposing applied elongation.For given material composition and cross-sectional area, the percent area coverage of first area to the first band is higher, then this fleece resists applied elongation and the drag that applies is higher.First area to the covering percentage of the first band partly (if not all) depend on the spacing between the width of first area and adjacent first regions.
The available stretch of this web material depends on the surface-pathlength of second area.The surface-pathlength of second area depends on the form depth of ribbed element spacing, ribbed element frequency and ribbed element at least in part, measured by the plane perpendicular to this web material.In general, the surface-pathlength of second area is larger, then the available stretch of this web material is larger.
As described in above with reference to Fig. 3 A-3C, the first band 52 initially shows certain impedance to the elongation provided by first area 64, and the ribbed element 74 of second area 66 experiences geometry motion simultaneously.When in ribbed elements transition to the plane of the first area of this material, show the impedance to the increase of extending, because whole first band experiences molecular-level deformation subsequently.Therefore, when being formed as closed container such as flexible pouch of the present invention, described in Fig. 3 A-3C and referenced above and such first band described in patent being incorporated to the people such as Chappell above provides feature performance benefit of the present invention.
By by aforementioned first band, to be used for constructing a kind of additional beneficial effect realized according to flexible pouch of the present invention be the vision of this type of material and the enhancing of tactile appeal.The polymer film being commonly used to be formed this type of flexible polymer bag is usually thinner in nature and has smooth, glossiness surface smoothness in many cases.Although some manufacturers have at least carried out embossing or other texturing of low degree to film surface on the outside of finished bag, the bag be made up of this class material has still been tending towards showing the smooth and tactile impression of crisp fritter.Thin material is also tending towards making this type of flexible polymer bag leave the thinness impression of exaggeration to consumer together with substantially two-dimentional morphology, thus thinks that it lacks durability.
By contrast, show three-dimensional sectional plane according to of the present invention useful first with those such as described in Fig. 3 A-3C, wherein the first band (at non-tension) is deformed into outside the principal plane of the first band.This provide the additional surface area for grasping and disperse the dazzle be usually associated with the smooth surface of plane substantially.When bag is grasped in hand, the ribbed element of described three-dimensional also provides " like pad " tactile impression, thus also provides the desired tactile impression being different from conventional bag material, and provides thickness sense and the durability of enhancing.Described additional matter structure also reduces the noise be associated with the membrane material of some type, thus causes the aural impression of enhancing.
Second band is along the length of this band, and the principal direction being namely arranged essentially parallel to this band is formed as continuous print wave pattern substantially.Simultaneously ripple is formed with the first rib be with.Ripple is formed by the relevant portion of this film of looping mill rolling.Carry out segmentation looping mill rolling to this part of film film stretched and surrenders into waveform configuration, reduce the basic weight of the looping mill rolling part of film simultaneously and stretch or extend the width of this part.Generally cause film by 20 to 60% plastic settings to the stretching of the second band.This stretching reduces the basic weight of film in the second band by 62 to 83% of raw material.
First band and the combination of the second band of the intertexture of shaping membrane provide the most physical property of following identical basement membrane, and described identical basement membrane has been formed as the structure only with the first band.When stretch or the second band of extension looping mill rolling time, interlacing pattern produces following additional beneficial effect: provide the most telolemma with substantially the same performance, what utilize is significantly less material simultaneously.
First band and the second the shaping of band are preferably carried out simultaneously.If the form depth of the first band is different from the tensile elongation of the second band, then must design machining tool to obtain these results simultaneously.Be not limited by the following examples, one in order to obtain simultaneously but the option of differentiated shaping strain is for the different molding gear height of each use in these bands.Also can implement other option and such as in the first band is to the second band, use different tooth pitches.Also likely first or secondly shaping first band and secondly or first shaping second band successively.
In the forming process of material of the present invention, can between the plate of patterning machined diaphragm, or can between pattern roller the continuous fiber net of processing of films.In one embodiment, the depth of engagement of the patterned member of shaping first band is different from the depth of engagement of the patterned member of shaping second band.In this embodiment, the depth of engagement for the second band is less than the depth of engagement be with for first.In one embodiment, first band is formed as and has about 0.038 " depth of engagement of (0.965mm), and the DOE difference that the second band is had about 0.024 by being shaped to simultaneously the depth of engagement of " (0.610mm) or have about 0.014 " (0.356mm).The change of this depth of engagement between described two bands obtains by using the following and interactional profile member of co-operating member, described profile member has the single profiled part comprising differing heights, and described co-operating member has the parts of even height.As an example, be with these parts be associated can have about 0.080 with first " height of (2.03mm), and be with these parts be associated " height of (1.68mm) that has about 0.066 with second.
Embodiment:
Embodiment #1: a kind of LLDPE film, it is made up of 89%Tuflin XHS 7091,8%FleximerETSE 9068 and 3% Chinese white masterbatch.Described Tuflin and Fleximer is from DowChemical (Midland, MI), and described Chinese white masterbatch is from Ampecet (Tarrytown, New York).This film is blow molded into the film of 30 inches of degree of 0.0009 inch.Before formed solid, this film is cut into the width of 10 inches.The ring roller of 0.040 inch pitch as shown in USD518648S1 or seven tooth rhombus SELF patterns of 0.040 inch pitch are used to process this film.Measure the mechanical performance of film as follows: according to ASTM D882 measure tensile property, according to ASTM D1922 measure tear resistance, and according to ASTM D1709 (D4272,?) measure dart.Mechanical performance from SELF and ring roller film is illustrated in table SRR.Ring roller film can be matched with, except dart with the performance of the film of the deep forming of 0.038 inch via SELF pattern.Do not comprise the ring roller film of optimum performance coupling for being deformed into 0.024 inches deep of dart.
table SRR
Embodiment #2: design being shaped to Fig. 6/7 with the identical film described in embodiment #1 and scheming the mixing SELF/RR shown in MOD5Diamond.Described machining tool is manufactured with the tool height difference of 0.014 inch, and wherein SELF band is deformed into more.The results are shown in table HYBRID.
Embodiment #3: design being shaped to the mixing SELF/RR shown in figure MOD5 Diamond with the identical film described in embodiment #1.Described machining tool is manufactured with the tool height difference of 0.011 inch, and wherein SELF band is deformed into more.The results are shown in table HYBR.
table HYBR
As an example, one has the pedestal of 0.0009 inch (0.0223mm) or nominal thickness and 0.918g/cm
2lLDPE (LLDPE) film of nominal density can be formed as the interlacing pattern with disclosed band.This band comprises shaping second area as above and ripple.The pitch of these parts of transmembrane width or spacing are about 0.040 inch (1mm).This pattern comprises four adjacent components of the discontinuous parts of the first band, is adjacent to the parts of continuous print substantially that three of the second band are adjacent.When the depth of engagement (DOE) of about 0.042 inch (1.07mm), this film shows the area growth of about 17% due to the cause of processing and forming.That is, the film standing 1 square metre of processing and forming becomes the film of about 1.17 square metres.
As used herein, " depth of engagement " refers to the degree that profile member overlaps between the shaping period of this disclosed film.The depth of engagement of 0.042 inch corresponds to the overlap of 0.042 inch between described two profile members.
The corresponding pattern of the first band and the second band can comprise multiple patterns.In general, the pattern of the first band comprises along the substantially parallel parts of a group of length of this band.Each parts include a series of rib as above.The position of rib in adjacent components determines these overall patterns be with together with non-moulding section in band.
In one embodiment, rib is arranged with symmetrical pattern.In this embodiment, rib is arranged symmetrically relative to the band of continuous member.In symmetrical pattern, the actual pattern of the rib in any specific ribbed belt can adopt any form, and the pattern in other ribbed belt each arranges symmetrically relative to the ripple of looping mill rolling band.Fig. 1,4 and 6 show symmetrical pattern.
In one embodiment, rib relative to looping mill rolling band with asymmetric pattern setting.In this embodiment, the pattern of the rib in each ribbed belt does not arrange symmetrically relative to ring roller strap.Described asymmetric degree can in the scope the simple shift from rib pattern, makes the overall pattern of the rib in each ribbed belt be similar or substantially the same, but the layout of rib makes pattern not be symmetrical relative to ring roller strap along the Length Shift of this band.In another embodiment, the pattern in each ribbed belt can be identical but asymmetric relative to ring roller strap.Fig. 2 and 5 shows asymmetric pattern.
In one embodiment, symmetrical pattern and asymmetric pattern can be used in single product.Because asymmetric pattern reduces the power extended needed for this film, therefore asymmetric pattern can be used for a part for the bag wherein expecting more easily to extend, and symmetrical pattern can be used for the part wherein only expecting to extend with higher levels of power.
Be formed as the substantially the same basement membrane with the pattern comprising different symmetrical level and can have different physical properties.As an example, in other words identical film, one is formed as and has symmetrical pattern, and another is formed as and has asymmetric pattern, needs the extending force of varying level makes in these films each extension across the width of forming strip, as shown in table 1.Argyle design shown in Fig. 1 is considered to symmetrical.Crenellation pattern shown in Fig. 2 is considered to asymmetric.
Table 2 provides the comparison physical performance data of in other words same film, and described film is formed as has uniform SELF pattern and selective SELF looping mill rolling composite pattern.
method of testing:
low-force extends method of testing:
material requested:
1) (CD) fleece of 8 inches wide, wherein at least 6 inches are activated into and have SELF or RR pattern.
2) counterweight of 200g and the fixture of 25g.
3) electronics metric system slide calliper rule, it is vertically fixing with the side standing upright on the material that suspended on that will test.
4) stainless steel of 3/4 " × 10 "
testing procedure:
1) this fibroreticulate activated partial is cut on MD for 13cm and for 20cm on CD.
2) this UF membrane is become the sample of a synusia.
3) place this film, make 13cmMD perpendicular to your health.
4) by described 3/8 " stainless steel to be placed on CD and loosely rolls sample until the fleece of described 13cm is rolled-up on MD.
5) one end of bar is skidded off to make the fleece 2cm at one end just rolled be smooth.
6) end of this material is pegged at the 1cm to 1.5cm counted from the end of rolled-up material.
7) described bar is pulled out completely from this material webs.
8) other end is pegged at the 1cm to 1.5cm counted from the other end of this material webs.
9) this material webs is placed in upper fixture so that bail and any smooth fleece are all in fixture.
10) bottom jig and counterweight to be hanging on described volume so that bail and fleece are all in fixture, between upper fixture and lower clamp, to reserve the material of the exposure of only 15cm.Before this fleece of permission does any extension, calibrator be fixed to this fibroreticulate described 15cm mark and be set to " 0 ".
11) place counterweight and make counterweight extend this fleece lentamente.
12) slide calliper rule slid into the new development length of this material and record measured value.
The various compositions being applicable to construct flexible pouch of the present invention comprise can by shaping or be drawn into the flexibility of fleece or sheet material or flexible thermoplastic.The example of suitable thermoplastic can comprise polyethylene, such as high density polyethylene (HDPE), low density polyethylene (LDPE), very low density polyethylene, more low density polyethylene (LDPE), LLDPE, polypropylene, ethane-acetic acid ethyenyl ester, nylon, polyester, ethylene-vinyl alcohol, ethylene methyl acrylate, ethylene ethyl acrylate or other material or their combination, and can come shaping by combining form and simple layer or multiple layer.When being used as the lining of garbage can, thermoplastic can be opaque, but can be transparent, translucent in other applications or have tone.In addition, the material for sidewall also can be the impermeable material of gas.
Once with any expectation and suitable mode manufactures the material of expectation, comprise all or part of of the material that will be used for bag main body, just can such as, by any known and suitable pattern constructs bag, those patterns for manufacturing this type of bag with commercial available form known in the art.Heat, machinery or adhesive seal technology can be utilized the various assembly of bag or element to be joined to they self or be engaged with each other.In addition, bag main body also can be thermoformed, blowing or in other words molding and do not rely on folding and bonding technology from fleece or material piece structure bag main body.Recently two United States Patent (USP)s are had illustratively to represent the present situation of this area about flexible storage bag, described bag be similar in general structure shown in Fig. 7 those but for current available type, described patent is the United States Patent (USP) 5 authorizing the people such as Porchia on September 10th, 1996,554, on November 19th, 093 and 1996 authorizes the United States Patent (USP) 5 of the people such as Dais, 575,747.
representative closure member
Constructing in the process according to flexible pouch of the present invention, can utilize and be applicable to expect any design of application and the closure member of configuration.Such as, drawstring type closure member can be adopted, can be handle or lateral plate, around be or interlocking bar closure member, binding agent based closure member, have or do not have the interlocking of slider type close mechanism mechanical sealing member, be made up of the removable frenulum or bar, heat seal or other suitable closure member any made bag.This type of closure member is well known in the art, and manufacture method and the method they being applied to flexible pouch are also well known in the art.
In one embodiment, bag comprises the second flexible material that the opening away from bag is arranged, and it is used as the stiffener along the bottom margin of bag, and no matter this edge comprises is sewed up edge or folded edge.Second inside or outside that can be arranged on bag self.Second can be fixed on first by the whole area of second, or it can fix by an only part for its area.In one embodiment, only fix along the edge of second for second.
As shown in Figure 7, bag 10 comprises the membrane material with intertexture band 20 and 30.Bag 10 also comprises bottom margin 11, side margins 16 and 18, closure member 14, opening 12.First band 30 is shown as and only partly comprises each parts.First band 30 can comprise the parts that are whole or an only part of the width across bag 10.Similarly, bag 10 the whole of the bag surface except closure member region 14 or only a part can comprise the first band and the second band 20 and 30.
Dimension disclosed herein and value are not intended to be understood to strictly be limited to quoted exact value.On the contrary, except as otherwise noted, each such dimension is intended to represent the value quoted and the scope be functionally equal to around this value.Such as, disclosed size " 40mm " is intended to represent " about 40mm ".
Unless specifically excluded or in other words limit to some extent, the every section of document quoted herein, patent that is that comprise any cross reference or that be correlated with or patent application, be incorporated to herein in full with way of reference all accordingly.Quoting of any document is not to its prior art as disclosed herein or claimed any invention; or its individually or with any combination of other bibliography any, or with reference to, propose, suggestion or disclose any accreditation that this type of is invented.In addition, when any implication of term in any implication of term in the present invention or definition and the file that is incorporated to way of reference or when defining contradiction, the implication or definition of giving this term in the present invention should be obeyed.
Although illustrate and describe the present invention by specific embodiments, it is obvious for those of skill in the art that, can make when not deviating from the spirit and scope of the present invention many other change and modification.Therefore, be intended to all these containing in the scope of the invention in following claims change and modification.
Claims (9)
1. a flexible membrane, described flexible membrane comprises often kind in multiple first band and the second band, described multiple band interweaves adjacent to each other, described first band and the second band all have length and width, wherein said first band comprises the first film basic weight and first area and second area, when sheet material stands applied elongation along the width that described first is with, described first area experiences molecular-level deformation and described second area initially experiences geometry deformation substantially substantially, multiple continuous wave patterns that described second band comprises the second film basic weight and arranges along the length of described second band, wherein said second is with the basic weight had than initiation material low 62% to 83%, and further, wherein multiple first band and multiple second is with multiple bands of the merging be interwoven to provide alternately first to be with and the second pattern be with.
2. flexible membrane as claimed in claim 1, described flexible membrane comprises often kind in multiple described first band and the second band, described multiple first band and described multiple second is with and is interweaved, and the mechanical performance of wherein said first band is substantially equal to the mechanical performance of described second band.
3., as flexible membrane in any one of the preceding claims wherein, the first area of wherein said first band arranges asymmetrically around described second band.
4. flexible membrane as claimed in claim 1, the width of wherein said second area is less than 0.75 inch.
5. flexible membrane as claimed in claim 1, the basic weight of wherein said first band is about 23gsm, and the basic weight of described second band is about 16gsm.
6. a flexible pouch, described flexible pouch comprises at least one piece of flexible sheet material tablet, described flexible sheet material tablet is assembled to be formed the semienclosed container with the opening limited by periphery, and described piece of flexible material comprises flexible membrane in any one of the preceding claims wherein.
7. flexible pouch as claimed in claim 6, described flexible pouch also comprises the 3rd band having and be with substantially the same basic weight with described first, and described 3rd band is plane substantially.
8. flexible pouch as claimed in claim 6, described flexible pouch also comprises a bag closure member.
9. flexible pouch as claimed in claim 6, described flexible pouch also comprises the second flexible film material layer, and described second flexible film material layer is arranged in described bag along the edge away from the opening of described bag.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36333610P | 2010-07-12 | 2010-07-12 | |
| US61/363,336 | 2010-07-12 | ||
| PCT/US2011/043700 WO2012009349A1 (en) | 2010-07-12 | 2011-07-12 | Enhanced flexible material and articles formed therefrom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102985250A CN102985250A (en) | 2013-03-20 |
| CN102985250B true CN102985250B (en) | 2015-08-19 |
Family
ID=44584620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180033898.7A Expired - Fee Related CN102985250B (en) | 2010-07-12 | 2011-07-12 | The flexible material strengthened and the goods be made up of it |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102985250B (en) |
| AU (1) | AU2011279316B2 (en) |
| CA (1) | CA2805473C (en) |
| WO (1) | WO2012009349A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111194201A (en) * | 2017-11-03 | 2020-05-22 | 宝洁公司 | Patterned substrate |
| CN113581741B (en) * | 2021-08-05 | 2023-07-25 | 无锡百年通工业输送有限公司 | Steel wire rope core tubular conveyer belt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3857144A (en) * | 1971-07-02 | 1974-12-31 | Mobil Oil Corp | Method of embossing limp plastic sheet material |
| WO1999054547A1 (en) * | 1998-04-16 | 1999-10-28 | The Procter & Gamble Company | Extensible paper web and method of forming |
| WO2000078627A2 (en) * | 1999-06-18 | 2000-12-28 | The Procter & Gamble Company | Flexible bags having enhanced capacity and stability |
| WO2001098161A3 (en) * | 2000-06-19 | 2002-04-04 | Procter & Gamble | Bag with extensible handles |
| CN101052570A (en) * | 2004-11-03 | 2007-10-10 | 宝洁公司 | Multi-directional elastic-like material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0705201A1 (en) | 1993-06-28 | 1996-04-10 | DowBrands Inc. | Flexible thermoplastic container having a visual pattern thereon, and process and apparatus for making it |
| US5518801A (en) | 1993-08-03 | 1996-05-21 | The Procter & Gamble Company | Web materials exhibiting elastic-like behavior |
| US5527112A (en) | 1994-04-15 | 1996-06-18 | Dowbrands L.P. | Adhesive closure for flexible bag |
-
2011
- 2011-07-12 WO PCT/US2011/043700 patent/WO2012009349A1/en active Application Filing
- 2011-07-12 AU AU2011279316A patent/AU2011279316B2/en not_active Ceased
- 2011-07-12 CA CA2805473A patent/CA2805473C/en not_active Expired - Fee Related
- 2011-07-12 CN CN201180033898.7A patent/CN102985250B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3857144A (en) * | 1971-07-02 | 1974-12-31 | Mobil Oil Corp | Method of embossing limp plastic sheet material |
| WO1999054547A1 (en) * | 1998-04-16 | 1999-10-28 | The Procter & Gamble Company | Extensible paper web and method of forming |
| WO2000078627A2 (en) * | 1999-06-18 | 2000-12-28 | The Procter & Gamble Company | Flexible bags having enhanced capacity and stability |
| WO2001098161A3 (en) * | 2000-06-19 | 2002-04-04 | Procter & Gamble | Bag with extensible handles |
| CN101052570A (en) * | 2004-11-03 | 2007-10-10 | 宝洁公司 | Multi-directional elastic-like material |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2805473C (en) | 2016-11-15 |
| AU2011279316A1 (en) | 2013-01-24 |
| WO2012009349A1 (en) | 2012-01-19 |
| CN102985250A (en) | 2013-03-20 |
| CA2805473A1 (en) | 2012-01-19 |
| AU2011279316B2 (en) | 2015-04-30 |
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