JP2017164298A - Aluminium foil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aluminium foil keeping a design bringing in sales, and hard to generate sticking even in cooking in an overheating condition.SOLUTION: At least one surface of an aluminium foil 2 is covered by a covering material. On a covering surface covered by the covering material, there are formed a plurality of first linear pattern portions 6a, a plurality of second linear pattern portions 6b crossing each of the first linear pattern portions, and a processed area 10 which is positioned in a region surrounded by the first linear pattern portion and the second linear pattern portion, and to which fine processing is applied. The first linear pattern portion and the second linear pattern portion includes a processed part to which the fine processing is applied, and a non-processed part to which the fine processing is not applied.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an aluminum foil for food cooking, and more particularly to an aluminum foil for food cooking used for cooking various foods.

2. Description of the Related Art Conventionally, in general households, food materials such as meat and fish are baked by laying aluminum foil on cooking utensils for the purpose of antifouling.
However, this method has a problem that foodstuffs stick to the aluminum foil, making it difficult to eat and the appearance of the foodstuffs worsening.

Therefore, it is required to lower the peel strength between the aluminum foil and the food so that the food such as meat and fish does not adhere.
As a method for reducing the peel strength, for example, a technique (for example, Patent Document 1) is known in which an aluminum foil used during cooking is coated with a silicone resin to lower the peel strength. In addition, a technique (for example, Patent Document 2) is known in which the design of the aluminum foil surface is improved by improving the design property by applying a lattice pattern formed by unevenness of fine processing.

JP-A-1-170431 JP 2002-346605 A

  However, even with an aluminum foil using the above-described technique, sticking of the food material may still occur when the food material is placed and cooked in an excessively heated state. Therefore, further peeling performance has been demanded.

  Here, as a means to improve the peeling performance, it is conceivable to make unevenness on the entire surface of the aluminum foil, but the pattern of the lattice pattern urges consumers to purchase and increases sales of aluminum foil Because it is an important element to make it indispensable.

  According to the present invention, it is possible to provide an aluminum foil that maintains a design that leads to sales and that hardly sticks even when cooked in an overheated state.

  As a result of intensive studies, the present inventor has confirmed that sticking is likely to occur in a non-processed portion where the fine processing of the aluminum foil is not performed. Furthermore, the present inventor has found that the above problem can be solved by narrowing the area of the non-processed portion constituting the lattice pattern.

That is, the aluminum foil of the present invention is
An aluminum foil having at least one surface coated with a covering material,
On the coated surface coated with the coating material,
A plurality of first linear pattern portions;
A plurality of second linear pattern portions intersecting with each of the first linear pattern portions;
A processing region is formed that is located in a region surrounded by the first linear pattern portion and the second linear pattern portion, and has been subjected to microfabrication,
The first linear pattern portion and the second linear pattern portion include a processed portion that has been subjected to fine processing and a non-processed portion that has not been subjected to fine processing.
Thereby, the area of the non-processed part that causes sticking can be reduced while maintaining a pattern that stimulates the consumer's desire to purchase.

The aluminum foil of the present invention is
The plurality of first linear pattern portions are arranged in parallel to each other, and the plurality of second linear pattern portions are arranged in parallel to each other.
Thereby, the pattern of the lattice pattern which stimulates a consumer's willingness to purchase is formed on the surface of the aluminum foil.

The aluminum foil of the present invention is
At least one of the first linear pattern portion and the second linear pattern portion is formed in a broken line shape by alternately arranging the processed portions and the non-processed portions. .
Thus, since the area of a process part can be increased by making a linear pattern part into the shape of a broken line, stickiness can be improved further.

The aluminum foil of the present invention is
The processed portion is provided at an intersecting portion between the first linear pattern portion and the second linear pattern portion.
Thereby, the length of the non-processed part which comprises a linear pattern part can be parted with a suitable space | interval, and it can lead to improvement of sticking.

The aluminum foil of the present invention is
The first linear pattern portion has a larger area occupied by the processed portion than the second linear pattern portion.
By increasing the area occupied by the processed portion in this way, it is possible to increase the variation of the design formed by the fine processing, and to stimulate the consumer's willingness to purchase.

The aluminum foil of the present invention is
The interval between the first linear pattern portions and the interval between the second linear pattern portions are each 20 mm or more,
The thickness of the first linear pattern portion and the thickness of the second linear pattern portion are 0.5 mm or more and 5.0 mm or less, respectively.

  Thus, by reducing the area of the non-processed part so that the distance between the linear pattern parts is 20 mm or more, sticking hardly occurs on the surface of the aluminum foil. Moreover, a pattern can be made easy to visually recognize by making the thickness of a linear pattern part into 0.5 mm or more. Moreover, by making thickness into 5.0 mm or less, the area of the non-processed part which occupies the surface of aluminum foil can be reduced, and peelability can be improved.

The aluminum foil of the present invention is
The covering material is a silicone resin.
In particular, if it is a silicone resin, the surface of the aluminum foil main body can be suitably coated.

  According to the present invention, it is possible to provide an aluminum foil that maintains a design that leads to sales and that hardly sticks even when cooked in an overheated state.

It is a top view which shows the aluminum foil which concerns on Example 1 of embodiment. It is a top view which shows the aluminum foil which concerns on Example 2 of embodiment. It is a top view which shows the aluminum foil which concerns on Example 3 of embodiment. It is a top view which shows the aluminum foil which concerns on Example 4 of embodiment. It is a top view which shows the aluminum foil which concerns on a comparative example. It is a top view which shows the aluminum foil which concerns on other embodiment. It is a top view which shows the aluminum foil which concerns on other embodiment.

  Hereinafter, an aluminum foil according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing the surface of the aluminum foil of the present invention. As shown in FIG. 1, the aluminum foil 2 is composed of an aluminum foil body 4 and a silicone resin (not shown) that is a covering material that covers the surface of the aluminum foil body 4. The surface of the aluminum foil 2 is given a design formed by micromachining. Hereinafter, each element which comprises the aluminum foil 2 is explained in full detail.

[1] Aluminum foil body 4
Although the raw material of the aluminum foil main body 4 is not specifically limited, IN30, 1100, 8021, 8079 etc. which are prescribed | regulated to JIS can be used.
The thickness of the aluminum foil body 4 is preferably 10 μm or more and 20 μm or less. By making the thickness of the aluminum foil 10 μm or more, tearing during cooking can be made difficult to occur, and by making the thickness of the aluminum foil body 4 20 μm or less, the aluminum foil 2 can be easily cut.

[2] Silicone resin The coating of the surface of the aluminum foil body 4 is formed by applying a silicone resin and performing a treatment. As the silicone resin, any silicone resin that can be coated can be used without any particular limitation. For example, polydimethylsiloxane, polyphenylmethylsiloxane, polyalkylalkenylsiloxane, polyalkylhydrogensiloxane and the like can be preferably exemplified. These may be used alone or in combination of two or more.

Moreover, you may use together coupling agents, such as a silane coupling agent, as needed. The surface of the aluminum foil main body 4 may be previously treated with a coupling agent, or may be added to and mixed with a silicone resin. The silicone resin is usually dissolved in a solvent and coated on the aluminum foil body 4. Not limited to the coating amount, but is preferably 0.05 g / m ² or more 0.8 g / m ² or less solids. Coating amount can improve the peelability by a solid content 0.05 g / m ² or more, stickiness due to the silicone resin is felt by the 0.8 g / m ² or less coating amount in solid content Disappear. After coating, it is cured by hot air drying. The drying temperature is usually 100 ° C. or higher, preferably 140 to 170 ° C. The application may be performed on both sides of the aluminum foil body 4 or only on one side, and when applied only on one side, it may be a glossy surface or a matte surface. In what form the silicone resin is applied to which surface of the aluminum foil body 4 is selected as necessary.

[3] Micromachining Although micromachining is not particularly limited, it is preferably performed by embossing. By performing embossing, irregularities are formed on the surface of the aluminum foil 2 covered with the silicone resin. Here, the embossing method may be a known method such as embossing the aluminum foil 2 using an embossing roll. In view of the uniform formation of the thickness of the laminated resin, it is more preferable that the embossing is performed after the silicone resin is once applied to the aluminum foil body 4.
The portion subjected to the fine processing is represented in white in the aluminum foil 2 in the drawings of this specification.

  Moreover, it is preferable that the uneven | corrugated depth formed by embossing is 5 micrometers or more and 30 micrometers or less. When the embossing depth is 5 μm or more, the embossing can be easily seen, and when the embossing depth is 30 μm or less, the strength of the aluminum foil 2 can be increased.

[4] Design By performing the fine processing described above, various designs can be formed on the surface of the aluminum foil 2 coated with the silicone resin. For example, as shown in FIG. 1, a lattice pattern design can be formed. The design is preferably displayed over the entire aluminum foil 2. Thereby, it can be made easy to recognize which surface is excellent in peelability.

  The lattice design includes a plurality of first linear pattern portions 6a and a plurality of second linear pattern portions 6b intersecting with each of the first linear pattern portions 6a. Here, the plurality of first linear pattern portions 6a and the plurality of second linear pattern portions 6b are arranged in parallel to each other. Further, in a region surrounded by the first linear pattern portion 6a and the second linear pattern portion 6b, a rectangular processed region 10 subjected to fine processing is formed.

  Moreover, it is preferable that the space | interval B between 1st linear pattern parts and the space | interval B between 2nd linear pattern parts are 20 mm or more, respectively. By narrowing the area of the non-processed part so that the interval B is 20 mm or more, sticking to the surface of the aluminum foil 2 is less likely to occur.

  In addition to the lattice pattern, the surface of the aluminum foil 2 coated with the silicone resin can be cooked such as “Omote” indicating that the surface has excellent peelability and meat and fish. You may form the illustration which shows a foodstuff, the display of a brand name etc. by embossing.

  Further, the lattice pattern design can be achieved by changing the ratio of the processing parts constituting the first linear pattern portion 6a and the second linear pattern portion 6b, or by changing the first linear pattern portion 6a and the second linear pattern portion. Various patterns can be formed depending on whether the intersecting portion 12 with the pattern portion 6b is a processed portion or a non-processed portion.

(Shape of the linear pattern portion 6)
The shape of the linear pattern portion 6 (a general term when the first linear pattern portion 6a and the second linear pattern portion 6b are collectively referred to) is determined by the processing pattern and the thickness.
Here, it is preferable that the first linear pattern portion 6a and the second linear pattern portion 6b each include a processed portion that has been subjected to fine processing and a non-processed portion that has not been subjected to fine processing.

  For example, as shown in FIG. 1, only the intersecting portion 12 where the first linear pattern portion 6a and the second linear pattern portion 6b intersect with each other may be a processed portion, and as shown in FIG. The linear pattern portion may be formed in a broken line shape by alternately arranging non-processed portions. In addition, when a linear pattern part is made into the shape of a broken line, it is preferable from a viewpoint of the peelability and the designability that the length of a non-processed part shall be 4 mm, and the length of a processed part shall be 3 mm.

  The thickness A of the linear pattern portion 6 is preferably 0.5 mm or more and 5.0 mm or less. By making the thickness A 0.5 mm or more, the linear pattern portion 6 can be easily recognized. Moreover, by making thickness A 5.0 mm or less, the area of the non-processed part which occupies the surface of the aluminum foil 2 can be reduced, and peelability can be improved.

(Shape of intersection 12)
The intersecting portion 12 between the first linear pattern portion 6a and the second linear pattern portion 6b has a great influence on the peelability of the aluminum foil 2. Further, the shape of the intersecting portion 12 can be changed according to the shape of the linear pattern portion 6. Specifically, as shown in FIG. 2, the crossing portion 12 can be made into an unprocessed portion without being embossed, and as shown in FIGS. It can also be made into a processed part. However, considering the viewpoint of the peelability of the aluminum foil 2, it is preferable that the intersecting portion 12 be a processed portion.

  According to the invention relating to this embodiment, the surface of the aluminum foil 2 is provided with a lattice pattern formed with finely processed irregularities, thereby maintaining a design that leads to sales and cooking in an overheated state. It is possible to provide an aluminum foil that is less likely to cause sticking.

  Examples will be shown below, and the embodiments of the present invention will be described in more detail. Of course, the present invention is not limited to the following examples, and it goes without saying that various aspects are possible in detail.

(Sticking judgment method)
A fried egg was actually created, and whether or not there was stickiness on the surface of the aluminum foil 2 was checked to determine stickiness. A specific determination method is shown below. First, each aluminum foil 2 shown in FIGS. 1 to 4 was laid on a frying pan and heated for 1 minute with high heat. Next, one egg was cut and heated for 3 minutes, and the presence or absence of sticking at that time was confirmed (sticking test: first table). Thereafter, the fried egg was turned over and heated for another minute, and the presence or absence of sticking at that time was confirmed (sticking test: back of the first time).
Subsequently, the aluminum foil 2 having the same design was newly cut, and the aluminum foil 2 was used to determine stickiness again (stickiness test: second time).

  The sticking judgment was performed by the following method. For sticking, (1) A spatula or the like is inserted between the fried egg and the aluminum foil 2 and feels resistance when peeled off, but there is no sticking. (2) The aluminum foil 2 is burnt or slightly sticking. (3) There are three levels of fried egg sticking to the aluminum foil 2. In addition, a stage when there was neither resistance nor sticking was added, and sticking judgment of each aluminum foil 2 was performed in four stages shown in Table 1.

[1] Example A 0.4 g / m ² silicone resin was applied to one side of an aluminum foil body 4 having a thickness of 11 μm to obtain an aluminum foil 2 coated with the silicone resin. Next, an embossing roll is press-contacted to the surface of the aluminum foil 2 covered with the silicone resin, and a lattice pattern comprising a processed portion where the surface of the aluminum foil 2 is embossed and a non-processed portion which is not embossed The pattern was formed. In addition, the depth of the unevenness | corrugation of embossing is about 13 micrometers.

Hereinafter, the pattern of the lattice pattern formed in Examples 1-4 and the comparative example is demonstrated.
Example 1
As shown in FIG. 1, the lattice pattern of the aluminum foil 2 according to the first embodiment is configured by the first linear pattern portion 6 a, the second linear pattern portion 6 b, and the processing region 10. As shown in FIG. 1 and Table 2, the thickness A of each of the first linear pattern portion 6a and the second linear pattern portion 6b is 4 mm, and the first linear pattern portion 6a and the first linear pattern portion 6a The distance B between the two linear pattern portions 6b is 25 mm. Moreover, the crossing part 12 had a square shape of 4 mm square, and was embossed to form a processed part.

(Example 2)
As for the lattice pattern of the aluminum foil 2 according to the second embodiment, as shown in FIG. 2, the point where the linear pattern portion 6 is a broken line, and the intersection portion 12 is not embossed and the intersection portion 12 is not processed. This is different from the first embodiment in that it is a part. Since others are the same as those in the first embodiment, description thereof is omitted. The broken line-shaped linear pattern portion 6 is formed by alternately arranging processed portions and non-processed portions, and the length of the processed portions is 3 mm and the length of the non-processed portions is 4 mm.

(Example 3)
About the lattice pattern of the aluminum foil 2 which concerns on Example 3, as shown in FIG. 3, the linear pattern part 6 is made thin, and the thickness of the 1st linear pattern part 6a and the 2nd linear pattern part 6b is shown. A differs from Example 1 in that A is set to 1 mm, and the intersecting portion 12 is a 2.5 mm square processed portion. Since others are the same as those in the first embodiment, description thereof is omitted.

Example 4
For the lattice pattern of the aluminum foil 2 according to Example 4, as shown in FIG. 4, the thickness A of each of the first linear pattern portion 6a and the second linear pattern portion 6b is set to 1 mm, and the intersection 12 Is different from the second embodiment in that a 2.5 mm square processed portion is used. Since others are the same as those of the second embodiment, the description thereof is omitted.

(Comparative example)
About the lattice pattern of the aluminum foil 200 which concerns on a comparative example, as shown in FIG. 5, the point which made the cross | intersection part 120 the non-processed part which does not give embossing differs from Example 1. FIG. For this reason, the linear pattern part 60 and the cross | intersection part 120 which comprise a lattice pattern become all a non-processed part, and the area of a non-processed part becomes larger than the aluminum foil 2 of Examples 1-4.

  According to the results of the sticking test shown in Table 2, when the lattice-patterned aluminum foil 2 according to Examples 1 to 4 is used, the lattice-patterned aluminum foil 200 according to the comparative example is used. It can be seen that stickiness is improved as compared with. The reason why the sticking is improved is that, in particular, in the first sticking test, there was resistance in the comparative example, but in Examples 1-4, the resistance disappeared, compared with the aluminum foil 200 according to the comparative example. And in the aluminum foil 2 which concerns on Examples 1-4, it demonstrates from the area of the non-processed part which causes sticking reducing.

  In the above-described embodiment, the linear pattern portion 6 is described as an example of the pattern constituting the lattice pattern design. However, the linear pattern is not necessarily limited to a linear pattern. For example, it may be a linear pattern portion having some creases or distortions. Further, the linear pattern portions 6 do not have to be strictly parallel.

Moreover, in the above-mentioned embodiment, as shown in FIGS. 1 and 3, when the linear pattern portion 6 is a solid line shape, only when the linear pattern portion 6 is a broken line shape as shown in FIGS. However, as shown in FIG. 6 and FIG. 7, a solid linear pattern portion 6 and a dashed linear pattern portion 6 may be combined. That is, the area occupied by the processed portion may be larger in the second linear pattern portion than in the first linear pattern portion 6a. Further, the area occupied by the processed portion may be smaller in the second linear pattern portion than in the first linear pattern portion 6a.
Further, the covering material is not necessarily a silicone resin, and may be applied to both surfaces of the aluminum foil body 4.
In the above-described embodiment, it is described that the intersecting portion 12 has a square shape. However, the intersecting portion 12 is not necessarily limited to a square shape, and may be, for example, a rhombus.

  According to the present invention, it is possible to provide an aluminum foil that maintains a design that leads to sales and that hardly sticks even when cooked in an overheated state.

2 Aluminum foil 4 Aluminum foil body 6 Linear pattern portion 6a First linear pattern portion 6b Second linear pattern portion 10 Processing region 12 Intersection

Claims (7)

An aluminum foil having at least one surface coated with a covering material,
On the coated surface coated with the coating material,
A plurality of first linear pattern portions;
A plurality of second linear pattern portions intersecting with each of the first linear pattern portions;
A processing region is formed that is located in a region surrounded by the first linear pattern portion and the second linear pattern portion, and has been subjected to microfabrication,
The aluminum foil characterized in that the first linear pattern portion and the second linear pattern portion include a processed portion subjected to fine processing and a non-processed portion not subjected to fine processing.   2. The aluminum foil according to claim 1, wherein the plurality of first linear pattern portions are arranged in parallel to each other, and the plurality of second linear pattern portions are arranged in parallel to one another.   At least one of the first linear pattern portion and the second linear pattern portion is formed in a broken line shape by alternately arranging the processed portions and the non-processed portions. The aluminum foil according to claim 1 or 2.   The said process part is provided in the cross | intersection part which the said 1st linear pattern part and the said 2nd linear pattern part cross, The Claim 1 characterized by the above-mentioned. Aluminum foil.   The aluminum foil according to any one of claims 1 to 4, wherein the first linear pattern portion has a larger area occupied by the processed portion than the second linear pattern portion. The interval between the first linear pattern portions and the interval between the second linear pattern portions are each 20 mm or more,
The thickness of the first linear pattern portion and the thickness of the second linear pattern portion are 0.5 mm or more and 5.0 mm or less, respectively. The aluminum foil as described in the item.   The aluminum foil according to claim 1, wherein the covering material is a silicone resin.

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