KR20070017518A - Closure device - Google Patents

Abstract

A closure device is provided having first and second fixing strips arranged to engage over a predetermined length. Each of the first and second fixing strips comprises first and second closing elements separated by an intermediate region, the first closing element on the first fixing strip being the first on the second fixing strip over a predetermined length. Arranged to engage with the closure element, the second closure element on the first fixing strip is arranged to engage with the second closure element on the second fixing strip over a predetermined length. Each closure element may be colored with a colorant. By way of example, the closing element on one fixing strip may be colored with an opaque dye, and the intermediate region on this fixing strip may be colored with a first transparent dye. The closing element on the other fixing strip can be colored with a transparent dye, and the middle region on this fixing strip can be colored with a second opaque dye. When the closure device is occluded, the colors of the first and second dyes in combination cause a change in color. The change in color can be observed from each side of the closure device.

Fixing strip, closed element, transparent dye, middle area

Description

Closing device {CLOSURE DEVICE}

The present invention relates to the field of engaging a container associated with a closure device. The closure device of the present invention can be used in conventional fixture areas and is particularly suitable for use as a fixture for storage containers such as plastic bags.

It is generally known to use a fixing device for the closure of a container comprising a plastic bag body. In addition, the manufacture of fixing devices made of plastic materials is also generally known to those skilled in the art of closing devices, as exemplified by many patents in this area.

Particularly well known uses for fastening devices are associated with flexible containers such as bag bodies. The closure device and associated container may be formed of thermoplastic material, and the sidewalls of the closure device and the container may be integrally formed by extrusion as a single member. Alternatively, the closing device and the side wall are formed as separate members and then connected by heat sealing or any other suitable connection process. When incorporated as a fixture on the bag body, the closure device is particularly useful for providing closure means for retaining the contents of the bag body in the bag body.

Conventional closure devices use mating male and female closure elements that engage to effect closure of the device. Often, it is difficult to determine when the male and female closure elements occlude. Thus, when a conventional closure device is used, there is a possibility that the closure device is at least partially open.

The prior art discloses a closure device that attempts to solve these problems. By way of example, the prior art has provided a variety of closure devices with female and male closure elements, where one of the closure elements is blue and the other is yellow. When the blue and yellow closure elements are properly occluded, the closure device is shown in green, thus providing a visual confirmation that the closure device is properly occluded. When differently colored male and female members are mated, the color change seen is shown in a commercially available product sold under the trade name GLAD-LOCK® (Glad-Lock is a registered product of The Glad Products Company, Oakland, California. Is a trademark).

The GLAD-LOCK® product described above provided a closure device that overcomes the disadvantages inherent in previously known devices and has received significant consumer acceptance. In spite of the commercial response of the above mentioned products, an improved closure device is constantly being considered. The color change characteristic of the closure device has been observed to be most efficient when the width of the closure element is relatively narrow, ie when the closure device has a width of about 90 mils. However, when the closure device is narrow, it is more difficult to properly align the closure elements of such closure device. Thus, it has been found that consumers prefer a closure device having a width of about 180 mils to about 380 mils.

However, as the width of the closure device increases, the efficiency of the color change indicator decreases somewhat. The effect of color change between occlusion and non-sum is reduced. In the GLAD-LOCK® product described above, the color change effect is achieved by forming one of the closure elements in an opaque yellow color and the other in a translucent blue color. The green color obtained at the occlusion of the two closed elements is seen through the translucent blue colored element. When the closure element is made larger to accommodate consumer preferences, when the closure element is not fully occluded, more area is needed to provide visual overlap between the opaque yellow and translucent blue closure elements. Thus, the color of the blue element may appear bluish green at points or areas where the element is close, but not occlusion. Thus, the contrast between the appearance of the translucent blue component in the non-summed state and the occlusal state is reduced.

Thus, there is a need for a wider closure device that effectively exhibits the visual color change effect provided by the narrower closure device and can also be more easily mated by the user. The prior art discloses a number of solutions to the use of the wider closure device described above, including a closure device comprising a color change emphasis member in the device, for example, to improve color change awareness in the wider color change closure device. Doing. One such improved color change closure device is disclosed in US Pat. No. 4,829,641. Although this color changing closure device improved the color changing effect of the wider closing device, further improvement of the color changing closing device is beneficial when the closing device becomes wider. Thus, there is a need for a color change closure device that allows high contrast between different colors to be observed in the occlusion and non-matching states, and which has a desired width for tactile operation.

It is a general object of the present invention to provide a closure device that meets the above-mentioned needs.

According to one embodiment of the invention, there is provided a closing device having first and second fixing strips separated by an intermediate region. The first and second fixing strips are arranged to be joined over a predetermined length. Each of the first and second fixing strips comprises first and second closing elements, the first closing element on the first fixing strip being arranged to engage the first closing element on the second fixing strip over a predetermined length; The second closing element on the first fixing strip is arranged to engage with the second fixing element on the second fixing strip over a predetermined length. In one embodiment, the closing element on the first fixing strip is opaque, and the intermediate region on the fixing strip is transparent or opaque. The closing element on the second fixing strip is transparent, and the intermediate region on this fixing strip is transparent.

1 is a perspective view of a container according to the invention in the form of a plastic bag;

2 is a cross-sectional view taken along line 2-2 of FIG. 1 illustrating a fixing strip of the closure device of the present invention.

3A is a cross-sectional view of one embodiment in a non-join position showing light rays in contact with the closure device.

3B is an illustration of the embodiment of FIG. 3A in an occlusal position.

FIG. 3C is a partial shaving of the container showing the color change area on the closure device of FIG. 3B. FIG.

FIG. 3D is a cross-sectional view of another embodiment in an occluded position showing lens characteristics of the intermediate region. FIG.

3E is a cross sectional view of another embodiment in an occlusal position showing lens characteristics of an intermediate region;

3F is a cross sectional view of another embodiment in an occlusal position showing lens characteristics of an intermediate region;

3G is a cross-sectional view of another embodiment in an occlusal position showing lens characteristics of the intermediate region.

3H is a cross sectional view of another embodiment in an occlusal position showing lens characteristics of an intermediate region;

3I is a cross sectional view of another embodiment in an occlusal position showing lens characteristics of an intermediate region;

4A is a cross-sectional view of another embodiment in a non-join position showing light rays in contact with the closure device.

4B illustrates the embodiment of FIG. 4A in an occlusal position.

4C is a partial front view of the container illustrating the color change area on the closure device of FIG. 4B.

5A is a cross-sectional view of another embodiment in a non-combination position showing light rays in contact with the closure device.

5B illustrates the embodiment of FIG. 5A in an occlusal position.

FIG. 5C is a partial front view of the container illustrating the color change area on one side of the closure device of FIG. 5B. FIG.

5D is a partial front view of the container illustrating the color change area on the other side of the closure device of FIG. 5B.

6A is a cross-sectional view of another embodiment in an occlusal position.

FIG. 6B is a partial front view of the container illustrating the color change area on one side of the closure device of FIG. 6A.

6C is a partial front view of the container illustrating the color change area on the other side of the closure device of FIG. 6A.

7 is a cross-sectional view of another embodiment of the closure device of the present invention illustrating a securing strip with three closure elements.

8 is a cross-sectional view of another embodiment of the present invention illustrating a closure device having a closure element applied separately on a side wall or fixing strip of the container.

9 is a sectional view of another embodiment of a closure device according to the invention.

10 is a sectional view of one embodiment of a closure device of the present invention.

According to the invention, the closure device comprises first and second fastening strips arranged to be joined over a predetermined length. Each of the securing strips comprises one or more closure elements. The closing element can be a "male" closing element or a "female" closing element. As used herein, and as generally understood in the art, the terms "male" and "female" closure elements engage into other closure elements, and elements with outwardly projecting hooks are referred to as "male closure elements" The element is referred to as the "female closure element" and has an inwardly projecting hook. These terms are commonly used to describe closed elements having the structure described above.

1 illustrates a container according to the invention in the form of a plastic bag 20 with a sealable closing device 21. The bag 20 includes side walls 22 that are joined at the seal 25 to form a sealable compartment by the closure device 21. The side wall 22 extends over the closing device 21 to form an inlet 27. The inlet 27 makes the plastic bag 20 more convenient to open or open the closing device 21, thereby allowing the user to open the bag 20. Allow gripping 20).

2 illustrates one embodiment of the closure device of the present invention. The closing device 121 comprises a first fixing strip 103 and a second fixing strip 104. The first fixing strip 103 comprises male U-channel closure elements 105, 106. The second fixing strip 104 includes female U-channel closure elements 108 and 110.

The closure element 108 includes a base 111 from which a pair of parallel spaced webs 112, 113 extend therefrom. Each of the webs 112, 113 includes hooks 114, 115 extending inwardly and directed inwardly. The closing element 110 is similar to the closing element 108. The closing element 108 is separated from the closing element 110 by an intermediate region 121.

The closing element 105 includes a pair of parallel spaced webs 116, 117 extending upward from the base 119. Each web 116, 117 has hooks 118, 120 outwardly extending therefrom. The closing element 106 is similar to the closing element 105. The closing elements 105, 106 are separated by the intermediate region 122.

According to a document published by John Wiley & Sons, Inc. and authored by Anni Berger-Schunn entitled "Practical Color Measurement" (Copyright 1994, p. 13), all materials and objects are color-coded. Can be divided into three groups: (1) transparent), (2) translucent and (3) opaque or reflective. The transparent material "absorbs a portion of the illumination light, the other part scatters through the sample, and the transparent material can be colored or colorless." The translucent material "not only absorbs some of the incident light and passes other parts, but also scatters some of the non-absorbed light ... the scattered part is partially passed and partially reflected." Opaque or reflective materials "absorb or reflect incident light and do not pass any light." Practical color measurement page 13. As used herein, the term "colorless transparent" is considered to be color, even if the material does not exhibit color.

The first and second closure elements 105, 106 on the first fixing strip 103 are of a first color. By way of example, these first and second color elements 105, 106 may be translucent blue. The middle region 122 is the second color. By way of example, the intermediate region 122 may be colorless transparent.

The first and second closure elements 108, 110 on the second fixing strip 104 are of a third color. By way of example, these first and second closure elements 108, 110 may be opaque yellow. The middle area 121 is a fourth color. By way of example, this intermediate region 121 may be colorless transparent or opaque white. As will be readily apparent from the above-mentioned colors, as long as the object of the present invention is achieved, the closing color and the combined closing color can be repeated for a given closing device.

The occlusal state of the closure device is illustrated in FIGS. 3A and 3B. The user applies a force in the direction indicated by arrows 123 and 124. The first male closing element 105 on the first fixing strip 103 engages with the first female closing element 108 on the second fixing strip 104. Similarly, the second male closing element 106 on the first fixing strip 103 engages with the second female closing strip 110 on the second fixing strip 104. When the closure device is engaged, as shown in FIG. 3B, the hooks 118, 120 of the mating male closure element engage with the hooks 114, 115 of the female closure element.

3A and 3B illustrate one embodiment of the present invention. The intermediate regions 121, 122 of each fixing strip 103, 104 are transparent, translucent or colorless transparent. For the purpose of explanation, the intermediate regions 121 and 122 will be referred to as colorless transparent in this embodiment. The closure elements 105, 106 may be of a first color, eg translucent blue. The closure elements 108, 110 may be of a second color, for example opaque yellow. As illustrated in FIG. 3C, the occlusal closure device thus appears to have three separate bands 162, 163, 164. Bands 162, 163 and 164 are shown in green, transparent and green, respectively.

Other combinations of colors of the closure elements can be used to generate the third color.

First color Second color 3rd color

Pink / Red Blue Purple

Red yellow orange

3A also illustrates incident light entering the closure device prior to occlusion. By way of example, the closure elements 105, 106 are translucent blue, the intermediate region 122 is colorless transparent, the closure elements 108, 110 are opaque yellow, and the intermediate region 121 is colorless transparent. The colorless ray 130 enters the translucent blue closure element 105 and after colliding with the opaque yellow closure element 108 is bent and exits the translucent blue closure element 105 as a bluish green ray. The term "bend" includes, but is not limited to, reflection and refraction. In addition, colorless light includes, but is not limited to, invisible sunlight, background light, and fluorescence. Colorless ray 132 enters colorless transparent intermediate region 122 and exits colorless transparent intermediate region 121 as colorless light rays. The colorless ray 134 enters the colorless transparent intermediate region 121 and exits the translucent blue closing element 106 as blue light. The colorless ray 136 enters the translucent blue closure element 106 and exits the translucent blue closure element 106 as blue light.

The colorless transparent intermediate regions 121, 122 allow light rays to enter the closure device. For example, if the intermediate region 121 is opaque, then light rays 134 may not enter the closure device. Additional light entering the closure device enhances the color change effect.

3D-3I illustrate an embodiment using an intermediate region as a lens to direct light rays to a predetermined position. The material and structure should be chosen to achieve the desired curvature of the light beam. Referring to FIG. 3D, the intermediate regions 521, 522 on the mating side of the fixing strip are concave. Referring to FIG. 3E, the intermediate regions 621 and 622 on the mating side of the fixing strip are convex. As shown in Fig. 3F, the intermediate regions 721 and 722 on the mating side of the fixing strip are concave and convex on the mating side. In Fig. 3G, the intermediate regions 821 and 822 on the mating side of the fixing strip are convex and concave on the mating side. As illustrated in FIG. 3H, the intermediate regions 921, 922 on the mating side of the fixing strip are concave and also on the mismatching side. In FIG. 3I, the intermediate regions 1021 and 1022 on the mating side of the fixing strip are convex and also convex on the mating side. In addition, these fixing strips can be combined in various combinations. As an example, the fixing strip 103 of FIG. 3A can be combined with the fixing strip 504 of FIG. 3D. In another example, the fastening strip 703 of FIG. 3F can be combined with the fastening strip 804 of FIG. 3G. The lens structure can be formed at the time the fixing strip is made. In addition, the lens structure is occluded in a closed device, as described in pending US patent application Ser. No. 08 / 673,653, filed June 28, 1996, which is incorporated herein by reference. Or by deformation of the fixing strip in comparison. Of course, lens structures other than concave or convex surfaces or multiple convex and / or concave surfaces may be used to achieve the desired effect. This lens feature can be used as appropriate with any of the embodiments described herein.

4A and 4B illustrate another embodiment of the present invention. The closing elements 105A, 106A on the first fixing strip 103a may be of a first color, such as translucent blue. The middle region 122A is colorless transparent. The closing elements 108A, 110A on the second fixing strip 104A may be of a third color, such as opaque yellow. The middle region 121A may be a third color such as white. As illustrated in FIG. 4C, the occlusal closure device thus has three separate bands 162A, 163A, 164A. Bands 162A, 163A, and 164A appear in green, white, and green, respectively.

4A also illustrates incident light entering the closure device prior to occlusion. In this example, the closing elements 105A and 106A are translucent blue, the middle region 122A is colorless and transparent, the closing elements 108A and 110A are opaque yellow and the middle region 121A is white. Colorless ray 130A enters translucent blue closure element 105A, impinges on opaque yellow closure element 108A, and then bends and exits translucent blue closure element 105A as a bluish green ray. The colorless ray 132A enters the transparent intermediate region 122A, bends after colliding with the white intermediate region 121A, and exits the translucent blue closing element 106A as a blue ray. The colorless ray 134A is bent as a white ray after colliding with the white intermediate region 121A. Colorless ray 136A enters translucent blue closure element 106A and exits translucent blue closure element 106A as blue light.

Middle region 121A provides a background for another color of the closure device. As an example, if the intermediate region 121A is white, then light 132A is emitted as blue light. If intermediate region 121A is another color, this color affects ray 132A. Thus, the middle region can provide a background color that enhances the color change effect.

5A and 5B illustrate another embodiment of the present invention. The closing elements 105B and 106B on the first fixing strip 103B and the intermediate region 121B on the second fixing strip 104B are of the first color, such as translucent blue. The intermediate region 122B on the first fixing strip 103B and the closing elements 108B, 110B on the second fixing strip 104B are of a second color, such as opaque yellow. When the fastening strips are joined together for the occlusion of the closure device, the closure device appears to have three distinct color bands when viewed from each side of the closure device. By way of example, as illustrated in FIG. 5C, the bands 162B, 163B, 164B on one side of the closure device appear green, yellow, and green, respectively. As illustrated in FIG. 5D, the bands 162C, 163C, 164C on the other side of the closure device appear yellow, green and yellow, respectively. Since green appears on both sides of the closure device, the device provides a visual indicator of occlusion from each side of the closure device.

5A also illustrates incident light entering the closure device prior to occlusion. By way of example, the closure elements 105B and 106B are translucent blue, the intermediate region 122B is opaque yellow, the closure elements 108B and 110B are opaque yellow and the intermediate region 121B is translucent blue. Colorless ray 130B enters translucent blue closure element 105B, flexes after colliding with opaque yellow closure element 108B, and enters translucent blue closure element 105B as a bluish green ray. The colorless ray 132B is bent as a yellow ray after colliding with the opaque yellow intermediate region 122B. Colorless light 134B enters translucent blue intermediate region 121B and exits translucent blue closing element 106B as blue light. Colorless ray 136B enters translucent blue closure element 106B and exits translucent blue closure element 106B as a blue ray.

6A illustrates another embodiment of the present invention. The first closing element 105D on the first fastening strip 103D is the first color and the second closing element 106D on the first fastening strip 103D is the second color. The first closing element 108D on the second fixing strip 104D is of a third color and the second closing element 110D on the second fixing strip 104D is of a fourth color. The middle region 122D on the first fixing strip 103D is the seventh color, and the middle region 121D on the second fixing strip 104D is the eighth color. When the fastening strips are joined together for the occlusion of the closure device, the first and third colors produce a fifth color, the second and fourth colors produce a sixth color, and the seventh and eighth colors produce a ninth color. Create a color.

By way of example, the first color is translucent blue and the third color is opaque yellow, which produces a fifth color of green. The second color is translucent white and the fourth color is opaque black, which produces a sixth color of gray. The seventh color is opaque blue and the eighth color is translucent red, which produces a ninth color of purple. The closure device appears to have three distinct color bands when viewed on each side of the closure device. For example, as illustrated in FIG. 6B, the bands 162D, 163D, 164D on one side of the closure device are shown in green, blue and gray, respectively. As shown in FIG. 6C, the bands 162E 163E, 164E on the other side of the closure device appear yellow, purple, and black, respectively. Since the color change effect appears on both sides of the closure device, the device provides a visual indicator of occlusion from each side of the closure device.

Other combinations of closure elements can be advantageously used. By way of example, FIG. 7 illustrates a closure device comprising two anchoring strips 140, 141, where each anchoring strip comprises three closure elements 140A-140C, 141A-141C. The closure elements illustrated in FIG. 7 are all U-channel closure elements similar to FIG. 2. However, other closure elements can likewise be used. The securing strips may further comprise a larger number of closure elements as necessary. The number of colors can be increased by six colors for each pair of intermediate regions and each pair of closed regions added.

8 shows another embodiment of the closure device 221 according to the invention in which the closure elements 245, 246, 247, 248 are individually extruded onto the side wall 22 to form the fixing strips 249, 250. To illustrate. As illustrated, each of the first and second closure elements 245, 246 on the first fastening strip 249 extends from the side wall 22A that is the base of the fastening strip. The area 251 of the side wall 22A between the base 252 of the first closing element 245 and the base 254 of the second closing element 246 forms the middle area 251 of the fixing strip 249. do. Similarly, the region 256 between the base 258 of the second closure element 248 and the base 257 of the first closure element 247 forms the middle region 256 of the fixing strip 250.

The closure elements 245, 246, 247, 248 may comprise color as described above. By way of example, the closure elements 245 and 246 may be translucent blue and the closure elements 247 and 248 may be opaque yellow. In addition, the intermediate regions 251 and 256 may include colors as described above. By way of example, the middle region 251 is colorless transparent and the middle region 256 may be colorless or opaque white. Opaque white may be formed by applying paint or other material to the intermediate region 256, or in the intermediate region 256, by coextrusion of the white portions of the sidewalls.

The fixing strips 249 and 250 occlude in the same form as the fixing strips of FIGS. 2-4B and can achieve a similar color changing effect.

9 illustrates another embodiment of a closure device according to the invention. The closing device 321 includes a first fixing strip 374 and a second fixing strip 384. The fixed strip 374 includes two male arrowhead closure elements 375 and 376 separated by an intermediate region 377. Each of the male arrowhead closure elements 375, 376 includes bases 378a, 378b having webs 380A, 380B extending therefrom, each web having hooks 382a, 382b, 383a extending therefrom on each side. 383b).

The second fixing strip 384 includes female closure elements 385 and 386 separated by an intermediate region 388 on the fixing strip. Each female closure element 385, 386 includes a base 389A, 389B to which a pair of parallel spaced webs 390A, 390B, 391A, 391B extend therefrom. The web terminates at inwardly directed hooks 392A, 392B, 394A, 394B.

The closing elements 375 and 376 on the first fixing strip are of a first color. By way of example, the closure elements 375 and 376 may be translucent blue. Additionally, middle region 377 is of a second color. By way of example, the intermediate region 377 may be colorless transparent.

The closing elements 385 and 386 on the second fixing strip are of a third color. By way of example, the first and second closure elements 385 and 386 may be opaque yellow. Middle region 388 is a fourth color. By way of example, the middle region 381 may be colorless transparent or opaque white.

10 illustrates the male and female securing strips of one embodiment of the closure device of the present invention. Representative dimensions of the various parameters are as follows:

parameter Range (mils) Good (mils) 471 0.283-0.363 0.323 472 0.029-0.099 0.064 473 0.048-0.128 0.088 474A 0.022-0.092 0.057 474 0.035-0.105 0.070 475 0.008-0.018 0.013 476 0.022-0.052 0.037 477 0.015-0.095 0.055 478 0.096-0.176 0.136 479 0.206-0.286 0.246 480 0.013-0.083 0.048 481 0.098-0.168 0.133 482 0.012-0.042 0.027 483 0.041-0.111 0.076 483A 0.076-0.146 0.111 484 0.008-0.018 0.013 485 0.242-0.322 0.282 486 0.018-0.088 0.053

In general, the closure elements of the present invention may be formed from thermoplastic materials such as polyethylene, polypropylene, nylon and the like and combinations thereof. Thus, resins or mixtures of resins such as high density polyethylene, medium density polyethylene and low density polyethylene can be used to make the novel fasteners of the present invention. The closure element is preferably made of low density polyethylene. The choice of thermoplastic material relates to the closure design, its Young's modulus and the desired elasticity and flexibility, which are correlated to provide the function of the closure claimed herein.

When the closure device of the present invention is used in conjunction with a sealable bag, the film and the fixtures forming the body of the bag may be formed of a heat sealable material. Thus, the bag can be economically formed by heat sealing the aforementioned components to form the bag. The bag is preferably formed from a mixture of high pressure, low density polyethylene and linear low density polyethylene.

The closure elements of the invention can be produced by extrusion or other known methods. The closure device may be manufactured in the form of a separate fixing strip for later attachment to the film. Alternatively, the fixing strip is made as an integral part of the film and the film can be formed into a bag body. In addition, the fixing strips may be manufactured with or without flanges in one or both of the fixing strips, depending on the additional manufacturing operation or intended use expected. The use of the flange portion is known to those skilled in the art.

If the closure device is made as a separate fixing strip for later attachment to the film, the device can be integrally connected to the side wall of the container using any of a number of known methods. For example, the thermoelectric device is applied to a film in contact with the flange portion of the fixing strip, or the thermoelectric device is applied to a film in contact with the base portion of the closing element without any flange portion, causing heat transfer through the film, thereby closing Fusion at the interface of the film with the base or flange portion of the element. Suitable thermoelectric devices include heating rotating disks, traveling heater bands, resistance heating slide wires, and the like. The connection between the fixing strip and the container can also be carried out by the use of hot melt adhesive, hot air jet applied to the film to produce the melt, ultrasonic heating or other known methods.

The color of the device may be added to the raw material for the closing device during manufacture (such as by simultaneous extrusion), or the color may be applied (as by painting) to part of the sidewall of the container or to the closing device.

Accordingly, the present invention provides a closure device that overcomes the inherent disadvantages of the prior art. In particular, the present invention provides a closure device having a significant color change effect.

While specific embodiments of the invention have been illustrated, it is, of course, to be understood that, in particular, in view of the above teachings, the invention is not so limited, as modifications may be made by those skilled in the art. Accordingly, the appended claims are intended to cover any such modifications as long as they include the features that constitute an essential feature of these improvements within the true spirit and scope of the invention. All references and co-pending applications cited herein are hereby incorporated by reference in their entirety.

Claims (52)

A first and a second fixing strip arranged to interlock over a predetermined length, the first fixing strip including first and second closing elements, the second fixing strip being first and second; A second closing element, the first closing element on the first fastening element arranged to engage with the first closing element on the second fastening strip over a predetermined length; The closing element is a closing device arranged to engage with the second closing element on the second fixing strip over a predetermined length, The first closing element on the first fastening strip is of a first color, the second closing element on the first fastening strip is of a second color, and the first closing element on the second fastening strip is The second closing element on the second fixing strip, wherein the second closing element on the second fixing strip is of a fourth color, whereby the first closing element on the first fixing strip is the first on the second fixing strip. When combined with the closure element, the first and third colors produce a fifth color, and when the second closure element on the first fastening strip engages with the second closure element on the second fastening strip, The second and fourth colors generate a sixth color, The first and second closure elements on the first fixing strip are separated by a first intermediate region, and the first and second closure elements on the second fixing strip are separated by a second intermediate region, and the first The closure device in one first region is a seventh color and the second intermediate region is an eighth color. The closure device of claim 1, wherein the seventh and eighth colors are transparent. The closure device of claim 2, wherein the seventh and eighth colors are colorless and transparent. The closing device of claim 1, wherein the seventh color is transparent and the eighth color is white. 5. The closure device of claim 4, wherein the seventh color is colorless transparent. The closing device of claim 1, wherein the seventh and eighth colors produce a ninth color. The closing device of claim 1, wherein the first and second colors are the same, the third and fourth colors are the same, and the fifth and sixth colors are the same. 8. The closure device of claim 7, wherein the first and second colors are yellow, the third and fourth colors are blue, and the fifth and sixth colors are green. The closure device of claim 8, wherein the first and second colors are opaque yellow, the third and fourth colors are translucent blue, the seventh color is transparent, and the eighth color is transparent. 10. The closure device of claim 9, wherein the seventh and eighth colors are colorless transparent. 9. The closure device of claim 8, wherein the first and second colors are opaque yellow, the third and fourth colors are translucent blue, the seventh color is transparent, and the eighth color is white. The closure device of claim 11, wherein the seventh color is colorless and transparent. 2. The method of claim 1, wherein the first and second closure elements on the first fastening strip are male closure elements, and the first and second closure elements on the second fastening strip are female closure elements. Closure device. The closure device of claim 13, wherein the first and second closure elements on the first fastening strip are arrowhead closure elements. The closure device of claim 13, wherein the first and second closure elements on the first fastening strip are U-channel closure elements. The closure device of claim 6, wherein the third, fourth and seventh colors are the same, the first, second and eighth colors are the same, and the fifth, sixth and ninth colors are the same. The closure of claim 16, wherein the third, fourth and seventh colors are opaque yellow, the first, second and eighth colors are translucent blue, and the fifth, sixth and ninth colors are green. Device. A first and second fastening strip arranged to be joined over a predetermined length, said first fastening strip comprising a first and a second closing element, said second fastening strip being a first and a second closing element. Wherein the first closing element on the first fastening element is arranged to engage with the first closing element on the second fastening strip over a predetermined length, and the second closing element on the first fastening strip is A closure device arranged to engage with the second closure element on the second fixing strip over a predetermined length, The first closing element on the first fastening strip is of a first color, the second closing element on the first fastening strip is of a second color, and the first closing element on the second fastening strip is The second closing element on the second fixing strip, wherein the second closing element on the second fixing strip is of a fourth color, whereby the first closing element on the first fixing strip is the first on the second fixing strip. When combined with the closure element, the first and third colors produce a fifth color, and when the second closure element on the first fastening strip engages with the second closure element on the second fastening strip, And the second and fourth colors produce a sixth color. 19. The closing device of claim 18, wherein the first and second colors are the same, the third and fourth colors are the same, and the fifth and sixth colors are the same. 20. The closure device of claim 19, wherein the first and second colors are yellow, the third and fourth colors are blue, and the fifth and sixth colors are green. 21. The closure device of claim 20, wherein the first and second colors are opaque yellow and the third and fourth colors are translucent blue. 19. The closure device of claim 18 wherein the first and second closure elements on the first fastening strip are male closure elements and the first and second closure elements on the second fastening strip are female closure elements. 23. The closure device of claim 22, wherein the first and second closure elements on the first fastening strip are arrowhead closure elements. 23. The closure device of claim 22, wherein the first and second closure elements on the first fastening strip are U-channel closure elements. 19. The closing device of claim 18, wherein the first and fourth colors are the same, the second and third colors are the same, and the fifth and sixth colors are the same. 27. The closure device of claim 25, wherein the first and fourth colors are opaque yellow, the second and third colors are translucent blue, and the fifth and sixth colors are green. First and second sidewalls, each of the first and second sidewalls including mating first and second sidewalls, each of the first and second sidewalls defining a first and second closure element. And the first closing element on the first fastening strip is arranged to engage the first closing element on the second fastening strip over a predetermined length, wherein the second closing element on the first fastening strip is pre-set. A container arranged to engage with the second closure element on the second fixing strip over a determined length, the container comprising: The first closing element on the first fastening strip is of a first color, the second closing element on the first fastening strip is of a second color, and the first closing element on the second fastening strip is The second closing element on the second fixing strip, wherein the second closing element on the second fixing strip is of a fourth color, whereby the first closing element on the first fixing strip is the first on the second fixing strip. When combined with the closure element, the first and third colors produce a fifth color, and when the second closure element on the first fastening strip engages with the second closure element on the second fastening strip, The second and fourth colors generate a sixth color, The first and second closure elements on the first fixing strip are separated by a first intermediate region, and the first and second closure elements on the second fixing strip are separated by a second intermediate region, and the first Wherein the first intermediate region is a seventh color and the second intermediate region is an eighth color. 28. The container of claim 27, wherein the seventh and eighth colors are transparent. 29. The container of claim 28, wherein the seventh and eighth colors are colorless transparent. 28. The container of claim 27, wherein the seventh color is transparent and the eighth color is white. 31. The container of claim 30, wherein the seventh color is colorless transparent. 28. The container of claim 27, wherein the seventh and eighth colors produce a ninth color. 28. The container of claim 27, wherein the first and second colors are the same, the third and fourth colors are the same, and the fifth and sixth colors are the same. 34. The container of claim 33, wherein the first and second colors are yellow, the third and fourth colors are blue, and the fifth and sixth colors are green. 35. The container of claim 34, wherein the first and second colors are opaque yellow, the third and fourth colors are translucent blue, the seventh color is transparent, and the eighth color is transparent. 36. The container of claim 35, wherein the seventh and eighth colors are colorless transparent. 35. The container of claim 34, wherein the first and second colors are opaque yellow, the third and fourth colors are translucent blue, the seventh color is transparent, and the eighth color is white. 38. The container of claim 37, wherein the seventh color is colorless transparent. 28. The container of claim 27, wherein the first and second closure elements on the first fastening strip are male closure elements and the first and second closure elements on the second fastening strip are female closure elements. 40. The container of claim 39, wherein the first and second closure elements on the first fastening strip are arrowhead closure elements. 40. The container of claim 39, wherein the first and second closure elements on the first fastening strip are U-channel closure elements. 33. The container of claim 32, wherein the third, fourth and seventh colors are the same, the first, second and eighth colors are the same, and the fifth, sixth and ninth colors are the same. 43. The container of claim 42, wherein the third, fourth and seventh colors are opaque yellow, the first, second and eighth colors are translucent blue, and the fifth, sixth and ninth colors are green. . First and second sidewalls, each of the first and second sidewalls including first and second sidewalls, wherein the first and second sidewalls each comprise first and second closure elements. Wherein the first closing element on the first fastening strip is arranged to engage with the first closing element on the second fastening strip over a predetermined length, wherein the second closing element on the first fastening strip is A closure device arranged to engage with the second closure element on the second fixing strip over a predetermined length, The first closing element on the first fastening strip is of a first color, the second closing element on the first fastening strip is of a second color, and the first closing element on the second fastening strip is The second closing element on the second fixing strip, wherein the second closing element on the second fixing strip is of a fourth color, whereby the first closing element on the first fixing strip is the first on the second fixing strip. When combined with the closure element, the first and third colors produce a fifth color, and when the second closure element on the first fastening strip engages with the second closure element on the second fastening strip, And the second and fourth colors produce a sixth color. 45. The closing device of claim 44, wherein the first and second colors are the same, the third and fourth colors are the same, and the fifth and sixth colors are the same. 46. The closure device of claim 45, wherein the first and second colors are yellow, the third and fourth colors are blue, and the fifth and sixth colors are green. 47. The closure device of claim 46, wherein the first and second colors are opaque yellow and the third and fourth colors are translucent blue. 45. The closure device of claim 44, wherein the first and second closure elements on the first fastening strip are male closure elements and the first and second closure elements on the second fastening strip are female closure elements. 49. The closure device of claim 48, wherein the first and second closure elements on the first fastening strip are arrowhead closure elements. 49. The closure device of claim 48, wherein the first and second closure elements on the first fastening strip are U-channel closure elements. 45. The closing device of claim 44, wherein the first and fourth colors are the same, the second and third colors are the same, and the fifth and sixth colors are the same. 52. The closure device of claim 51, wherein the first and fourth colors are opaque yellow, the second and third colors are translucent blue, and the fifth and sixth colors are green.

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