JPH055901Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a sheet for underlaying food, and more specifically to a sheet for underlaying food that can be used for foods that produce blood juices or broth, such as fresh foods.

BACKGROUND ART Some foods, such as meat and fish, produce liquids such as blood juice and broth.

Therefore, when selling these products in supermarkets and markets, paper, plastic film,
It is placed in a wooden tray or the like, and an absorbent sheet is placed underneath. However, the sheet is often stained with blood, etc., which may cause discomfort to the viewer.

Another step is to use a plastic sheet with slits in it, which allows blood and fluids to move downward from the slits so that they are no longer visible. However, blood and juices may not be completely transferred and may remain on the surface of the plastic sheet.Furthermore, if there is a large amount of blood and juices from the food, it may overflow to the surface.

Problems to be Solved by the Invention As mentioned above, conventional sheets for placing food underlays do not have adequate measures against blood juices, etc., and have various problems.This sheet for placing food underlays solves these problems. was expected to appear.

Means for Solving the Problems The present invention was made in view of the above circumstances, and consists of making a plurality of cuts in a sheet, creating a curved structure between the cuts to facilitate the draining of liquid, and using a material that has water absorption properties. It is based on the idea that by combining them, the discharge can be completed.

That is, the present invention consists of an impermeable sheet with a difference in heat shrinkage between the front material and the back material, and a water-absorbing material provided under the impermeable sheet,
Provided is a sheet for underlaying food, characterized in that the impermeable sheet has a plurality of discontinuous cuts that do not intersect with each other, and the spaces between the cuts are formed by heating to have an upwardly convex curved structure. It is something to do. By using such a sheet for underlaying food, blood and juices coming out of fresh food are completely removed from the field of vision, so that the viewer does not experience any discomfort.

The present invention will now be described with reference to the drawings.

1 to 9 are plan views schematically showing specific examples of cuts in the food underlay sheet of the present invention. FIGS. 12 to 15 are cross-sectional views showing aspects of the highly water-absorbent material provided under the impermeable sheet in the food underlay sheet of the present invention.

The food underlay sheet of the present invention has cuts in the pattern shown in Figs. 1 to 9 when viewed from above, and each cut between the cuts is curved as shown in Figs. 12 to 15 when viewed from the side. It has a structure that
And each curved part is made of an impermeable sheet,
A super absorbent material is provided under the impermeable sheet in the manner shown in FIGS. 12 to 15.

First, the impermeable sheet will be explained. First, the term "impermeable sheet" means a sheet that does not allow liquids such as meat juice or broth to pass through. Furthermore, this sheet must have enough strength and flexibility to maintain its curved state. Furthermore, as will be explained in more detail later, such a sheet is a laminate with a multilayer structure that has a difference in expansion and contraction between the front side and the back side in order to create a curved shape, and the material of each phase is The selection must take the differences into account.

In consideration of impermeability, strength, flexibility, and differential expansion/contraction, a laminate made of plastic sheets/films can be used as the laminate. Alternatively, depending on the case, a laminate made of metal sheets or a laminate made of tightly packed fiber aggregate sheets may also be used. Generally, from the viewpoints of impermeability, aesthetics, cleanliness, etc., a laminate made of plastic sheets is preferred, and an opaque material that cannot be seen through is more preferred.

Specific examples of plastics that can be used include polyethylene, polypropylene, polyvinyl chloride, polyurethane, polyamide, polyester, polyvinyl alcohol, polycarbonate,
Polyacrylate, polyvinyl acetate, cellulose acetate, cellulose triacetate, polybutylene, polyethylene-vinyl acetate copolymer, polybutadiene,
Examples include polychloroprene, polyisoprene, polystyrene-butadiene copolymer, polyacrylonitrile-butadiene copolymer, and the like. Since the laminate as a whole is impermeable, at least one of the layers of the laminate must be impermeable.

In addition, when using a dense fiber aggregate, the types of fibers include nylon, polyester,
Examples include synthetic fibers such as vinylon and acrylic, natural fibers and semi-synthetic fibers such as cotton, hemp, rayon, and wood pulp.

Next, means for forming the curved structure will be explained.

In a laminate made of the above-mentioned materials, each material is selected so that the back side shrinks more when heated. By such selection, a curve is formed such that the surface side becomes convex when heated according to the bimetal principle. Generally, in many plastic materials, such expansion and contraction is fixed by cooling, and the formed curvature is maintained when the material returns to room temperature.

Examples of expansion/contraction include cases where the front side stretches and the back side does not change, cases where the front side does not change and the back side contracts, and cases where the front side stretches and the back side contracts. However, in principle, there only needs to be a moderate difference in the degree of expansion and contraction, and even if a material that contracts on both the front and back sides is selected, a moderate difference is sufficient. However, if the shrinkage or elongation is too large, it will deform irregularly during heating, which is not appropriate.
In order to achieve appropriate expansion and contraction, the type of material for each layer and
Although it depends on the thickness or the width and length of the cut as described later, it can generally be adjusted by adjusting the heating temperature and heating time.

Next, the mode of the cuts will be explained. The cuts can be made in a straight line, a curve, or in various combinations, but the cuts are discontinuous, do not intersect with each other, and have multiple cuts. Must. Otherwise, proper curvature will not occur. Note that the phrase "do not intersect with each other" used in this specification means that the straight lines or curved lines forming the cut do not have any intersection with each other. however,
The case where a short straight or curved cut is added at the end point of the cut (see FIG. 10 of the attached drawing) is also intended to be included in the case where the cut does not intersect. In the case shown in FIG. 10, there is no problem in forming the curve, and on the contrary, the deformation that leads to the curve during heating may be made smoother. However, if the attached line is too long, the curve will become irregular, which is inappropriate.

A specific example of how to make cuts is shown in Figure 1 of the attached drawings.
It is shown in FIG.

FIG. 1 shows a specific example of a cut that is made up of a group of parallel straight lines with equal mutual spacing everywhere, and in which the end points of the straight lines are all aligned in the direction of the straight lines.

FIG. 2 shows a specific example of a cut that is made up of a group of parallel straight lines with equal mutual spacing everywhere, and where the end points of the straight lines are aligned every other line in the direction of the straight lines.

FIG. 3 shows a specific example of a cut that is made up of a group of parallel straight lines with equal mutual spacing at various locations, and where the end points of the straight lines are aligned in units of two lines and also aligned every other unit in the direction of the lines.

FIG. 4 shows a specific example of a cut in which two groups of parallel straight lines are combined and the directions of each group are at right angles to each other.

FIG. 5 shows a specific example of a cut in which two groups of parallel straight lines are combined, but the directions of each group are not at right angles to each other.

FIG. 6 shows a specific example of a cut that combines two curve groups.

FIG. 7 shows a specific example of a cut made of concentric arcs.

FIG. 8 shows a specific example of a cut formed by sides of squares sharing a center.

FIG. 9 shows a specific example of a cut that combines two symmetric curve groups.

Among these specific examples, cuts made of only one group of parallel straight lines are preferred from the viewpoint of ease of making the cuts and ease of forming a curved portion.

Depending on the width of the sheet, the spacing between the cuts is generally 3 to 20 mm.

Specifically, to make the cuts, a cutting method, a push-cutting method, or the like can be adopted. For example, the cut method is preferable in the cases shown in FIGS. 1 to 3, while the push-cut method is preferable in the cases shown in FIGS. 4 to 9.

Next, the water-absorbing material to be provided under the impermeable sheet will be explained.

The water-absorbing material may be any sheet-like material that absorbs water-based liquids.
Examples include spongy substances such as urethane foam, and fiber aggregate sheets such as woven and nonwoven fabrics made of hydrophilic fibers such as cotton and rayon. Further examples include so-called super-absorbent materials made of super-absorbent substances, and these super-absorbent materials are particularly preferred.

The super absorbent material is not particularly limited, and may be an ionic type such as a polyacrylic acid type, a grafted starch type, a polyacrylic acid-vinyl alcohol copolymer type, etc., which are generally used as water absorbent materials, or a cross-linked material. Any nonionic type such as polyvinyl alcohol or crosslinked polyethylene oxide may be suitably used. These highly water-absorbent materials may be used alone in the form of a powder or other highly water-absorbent material, or may be used as a sheet-like material (hereinafter referred to as It may also be used as a water absorbent sheet. An example of integration is a method in which polymer monomers are directly polymerized on a substrate by irradiation with radiation or the like.

The food underlay sheet of the present invention is made by heating and bending a laminate of non-permeable sheets with cuts as described above, and then adhering a super absorbent substance as described above alone to the entire back surface or partially. Alternatively, it can be obtained by adhering a water-absorbing sheet to a part of the back surface with an adhesive or by heat-sealing. Alternatively, the superabsorbent material can be adhered or bound to some degree before making cuts in the impermeable sheet, and then the whole sheet is made with cuts and then heated and bent.

11A to 11D are schematic diagrams showing the sheet before and after bending. FIG. 11A is a perspective view showing the laminate with the cuts before heating, FIG. 11B is a cross-sectional view taken along line X-X in FIG. 11A, FIG. 11C is a perspective view showing the laminate of FIG. 11A after heating, and FIG.
Fig. 1D is a cross-sectional view taken along line Y--Y in Fig. 11C. By referring to these figures, it will be possible to clearly understand how the portions between the cuts are curved by heating.

The state after the final bending (the curved portion observed from the lateral direction) is shown in FIGS. 12 to 15. FIG. 12 shows an embodiment in which a single highly absorbent substance is adhered to the back surface of an impermeable sheet. FIG. 13 shows an embodiment in which a water-absorbing sheet is adhered or bound to the entire back surface of an impermeable sheet, and cuts are made in both the impermeable sheet and the water-absorbing sheet. FIG. 14 shows an embodiment in which a water-absorbing sheet is adhered or bound to the entire back surface of an impermeable sheet, and no cuts are made in the water-absorbing sheet. Figure 15 shows an embodiment in which a water-absorbing sheet is adhered to a part of the back surface of a permeable sheet (however, Figure 15 shows a part of the curved part, and the adhesive part is not shown). ). In the drawings, A means an impermeable sheet, B means a super absorbent material, and C means a sheet having water absorbency.

The food underlay sheet of the present invention obtained in this manner has the following advantages.

Effects of the invention The food underlaying sheet of this invention has a unique curved structure in which the surface side of the impermeable sheet is convex, so that liquid from fresh foods, etc. can be smoothly guided to the cut along the convex surface, and it is also non-permeable. Since the liquid is absorbed by the water-absorbing material provided under the permeable sheet, no spots of liquid remain on the surface side. This also applies even if a large amount of liquid comes out.

In addition, the food underlay sheet of the present invention has a wide variety of designs because the cut pattern can be changed in various ways, and a product with excellent aesthetic appearance can be obtained. Therefore, when food is placed on it, it looks good and increases the consumer's desire to purchase it.

Furthermore, the sheet for underlaying food according to the present invention has cushioning properties derived from its curved structure, and is comfortable because it absorbs shock when food is placed on it.

In addition, since it is raised in a convex shape, it also has the effect of making the amount of food appear larger for the seller due to its bulkiness.

[Brief explanation of the drawing]

FIGS. 1 to 9 are plan views showing various forms of cuts, and FIG. Figure 2 is a plan view showing a specific example of a cut made up of a group of parallel straight lines with the end points of the straight lines partially aligned, and Figure 3 is a plan view showing another example of a cut made of a group of parallel straight lines with the end points of the straight lines partially aligned. FIG. 4 is a plan view showing one specific example of a cut made of a group of parallel straight lines in a right angle direction, and FIG. 5 is a plan view of a cut made of a group of straight lines in a direction other than right angles. 1 is a plan view showing a specific example, and FIG. 6 is a plan view showing a specific example 2.
FIG. 7 is a plan view showing a specific example of a cut made of two groups of curved lines, FIG. 7 is a plan view showing a specific example of a cut made of concentric arcs, and FIG. FIG. 9 is a plan view showing a specific example of a cut consisting of two symmetrical curve groups, and FIG. FIG. 11A is a perspective view schematically showing a laminate that is an impermeable sheet with cuts before heating, and FIG. 11A is a sectional view taken along the line X-X in FIG. 11A, FIG. 11C is a perspective view schematically showing the state after heating the laminate in FIG. 11A, and FIG. 11D is a cross-sectional view taken along the line X-X in FIG. 12 is a sectional view showing a specific example of the present invention in which a superabsorbent substance alone is adhered to the back side of an impermeable sheet, and FIG. 13 is a sectional view taken along the -Y line. A specific example of the food underlay sheet of the present invention, in which a water-absorbing sheet is adhered or bound to the entire back surface of a permeable sheet, and cuts are made in both the non-permeable sheet and the water-absorbing sheet. FIG. 14 is a cross-sectional view showing the food of the present invention, in which a water-absorbing sheet is adhered or bound to the entire back surface of an impermeable sheet, and no cuts are made in the water-absorbing sheet. FIG. 15 is a sectional view showing a specific example of the underlay sheet, and FIG. 15 shows a specific example of the food underlay sheet of the present invention, in which a water-absorbing sheet is adhered to a portion of the back surface of an impermeable sheet. FIG. In FIGS. 12 to 15, the symbols in the drawings have the following meanings. A... Impermeable sheet, B... Super water absorbent material,
C...Sheet with water absorbency.

Claims (1)

[Scope of utility model registration request] It consists of an impermeable sheet with a difference in heat shrinkage between the surface material and the back material, and a water-absorbing material provided under the impermeable sheet, and the impermeable sheet has discontinuous and mutually intersecting material. 1. A sheet for underlaying food, characterized in that the sheet has a plurality of notches, and has an upwardly convex curved structure formed by heating between the notches.