JP5383888B2 - Drip absorbing sheet - Google Patents

Description

  The present invention relates to a drip-absorbing sheet suitable for placing meat such as fish meat fillets and absorbing drip that exudes from the meat.

  2. Description of the Related Art When selling meat such as fish and beef at a store, a sheet for placing a small piece of the meat and absorbing a drip exuding from the meat is well known. For example, Utility Model Registration No. 3094586 (Patent Document 1) discloses a liquid-absorbent mat that is this type of sheet. This liquid-absorbing mat has a film layer having a plurality of through holes and a liquid-absorbing layer bonded to the film layer. The film layer is composed of two synthetic resin films composed of an upper film and a lower film. It is formed by laminating. The upper film is colorless and transparent, and characters and figures are printed on the surface facing the lower film

Utility Model Registration No. 3094586

  According to the liquid-absorbent mat, even if meat is placed on the film layer, the printing ink does not come into contact with the meat, and no sanitary problem caused by the printing ink occurs. However, even if the liquid-absorbent mat is such, it is unavoidable that a technical limitation arises that a printing ink that does not have a problem in food hygiene must be selected.

  Therefore, an object of the present invention is to provide a drip absorbing sheet in which characters, figures, and the like are formed without using printing ink.

  In order to solve the above problems, the present invention is directed to a liquid-permeable upper layer sheet having upper and lower surfaces, and a liquid-absorbing lower layer sheet bonded to the lower surface of the upper layer sheet, and the upper layer It is a drip absorption sheet which can absorb the drip which puts meat on the upper surface of a sheet, and exudes from the meat by the lower layer sheet.

  In this drip absorbing sheet, the present invention is characterized as follows. The upper layer sheet is formed of a thermoplastic film having a thickness of 0.01 to 0.1 mm, and occupies 70 to 99% of the area of the upper surface, and 30 to 30 to the area of the upper surface. And the non-display portion is a portion in which a plurality of air-permeable and liquid-permeable openings are uniformly distributed, and the display portion is the air-permeable and liquid-permeable openings. A non-perforated portion that has an area sufficient to form a plurality of dots and is surrounded by the non-display portion, and either the individual or the assembly of the display portion forms any one of a character, a figure, and a pattern. And the recessed part and the convex part are formed in the said upper surface in the said display part.

  In one of preferred embodiments of the present invention, the display section is formed by the band-shaped non-perforated section having a width in the range of 0.3 to 3 mm.

  In another preferred embodiment of the present invention, each of the vent-permeable liquid-permeable holes has a tubular portion that extends from the upper sheet toward the lower sheet and reaches the lower sheet.

In another preferred embodiment of the present invention, in the direction from the lower layer sheet to the upper layer sheet, the uppermost portion of the display portion is the uppermost portion of the non-display portion. The second part comprising: is in any of the following embodiments a, b, c;
a. An aspect formed at the same height,
b. A highly formed aspect,
c. The aspect formed low.

  In still another preferred embodiment of the present invention, the recess is a groove extending to an edge of the display unit.

  In the drip absorbing sheet according to the present invention, the liquid-permeable upper layer sheet is formed of a thermoplastic film, and the film has a non-display portion in which vent liquid-permeable holes are uniformly formed, A display portion that has an area sufficient to form a plurality of vent-permeable liquid-permeable apertures and is surrounded by a non-display portion. , Either a figure or a pattern. Therefore, in this drip absorbing sheet, characters and figures are formed without using printing ink. In addition, a concave portion and a convex portion are formed on the upper surface of the display portion. When meat is placed on the recess, the meat has an increased chance of contact with air.

The top view of the sheet | seat for drip processing. Sectional drawing which follows the II-II line | wire of FIG. The enlarged view of the part III of FIG. Sectional drawing which follows the IV-IV line of FIG. The figure similar to FIG. 4 about the sheet | seat for drip absorption which concerns on this invention. The figure similar to FIG. 5 about the sheet | seat for drip absorption which is one Embodiment of invention.

  The details of the drip absorbing sheet according to the present invention will be described below with reference to the accompanying drawings.

1 and 2 are a plan view of a drip processing sheet 1 suitable for applying the present invention and a cross-sectional view taken along line II-II in the plan view. The drip processing sheet 1 includes an upper layer sheet 2 formed of a thermoplastic film having a thickness of 0.01 to 0.1 mm, more preferably a polyolefin-based thermoplastic film such as polyethylene, and a basis weight of 20 to It includes a lower layer sheet 3 formed of a nonwoven fabric of 200 g / m ² of thermoplastic synthetic fiber, and an intermediate layer 4 formed of a hot melt adhesive that joins both sheets 2 and 3 together.

  The upper layer sheet 2 has an upper surface 6, a lower surface 7, and a plurality of gas-permeable liquid-permeable holes 8 penetrating between the upper and lower surfaces 6 and 7, and meat such as fish and beef is placed on the upper surface 6. A drip (not shown) that exudes from the meat goes to the lower layer sheet 3 through the opening 8. Such an upper layer sheet 2 also includes a non-display portion 10 in which a plurality of apertures 8 are uniformly distributed and occupies 30 to 99% of the area of the upper surface 6, and letters F, i, s, and h. The display part 11 which can be called the non-porous part enclosed by the non-display part 10 so that either of these may be comprised. The display unit 11 is formed so as to occupy a range of 30 to 1% of the area of the upper surface 6, and in addition to characters such as the illustrated example that can be seen by the user of the drip processing sheet 1, It can take the form of various patterns formed by various figures such as triangles, wavy continuous lines or continuous lines intersecting in a lattice pattern. In FIG. 1, the outline of the character is shown by a solid line in order to clearly indicate the existence of each character F, i, s, h.

  The lower layer sheet 3 is for absorbing and holding drip, and an airlaid nonwoven fabric, a spunbonded nonwoven fabric, a spunlace nonwoven fabric, or the like can be used as the nonwoven fabric forming the lower layer sheet 3. The nonwoven fabric can be improved in water absorption performance by being subjected to a hydrophilic treatment or containing water-absorbing fibers such as rayon fibers and pulp fibers.

The intermediate layer 4 is means for joining the upper layer sheet 2 and the lower layer sheet 3, and in the illustrated example, a hot melt adhesive is used at a rate of 1 to 5 g / m ² . The hot melt adhesive is applied intermittently to the upper layer sheet 2 or the lower layer sheet 3 so as not to hinder the air permeability of the upper layer sheet 2 as much as possible. In order to be able to easily confirm the presence of the film, it is illustrated as a layer extending continuously in the lateral direction of the figure.

  FIG. 3 is an enlarged view of a portion surrounded by an imaginary line III in FIG. In the upper layer sheet 2 of FIG. 1, each of the letters F, i, s, h as individuals is the display unit 11, and an aggregate of these individuals forms a word “Fish”. FIG. 3 shows an enlarged view of a part of the display unit 11 and the non-display unit 10 in the vicinity thereof. The non-display portion 10 is a portion in which a plurality of circular apertures 8 are uniformly formed on the upper surface 6 of the upper sheet 2, and a partition portion 13 is provided between the adjacent apertures 8. Is formed. Here, the apertures 8 are uniformly formed on the upper surface 6. When the plurality of apertures 8 are compared with each other, the planar shape of the apertures 8 is one type as shown in the figure, or FIG. Regardless of whether there are a plurality of types different from the example shown, the sum of the areas of the apertures 8 that fit within an area of 1 cm × 1 cm arbitrarily selected on the upper surface 6 is within a certain range. I mean. The upper layer sheet 2 becomes air permeable and liquid permeable due to the presence of the non-display portion 10, but there is no special provision in the planar shape of the opening 8 that makes it possible. The display unit 11 is a non-opening part that is surrounded by the non-displaying part 10 and has an area enough to form a plurality of openings 8. It is a part that can be visually identified. The boundary between the display unit 11 and the non-display unit 10 is a chain line 15 shown in FIG. The chain line 15 sequentially circumscribes the peripheral edge 8a of the adjacent opening 8 and extends. If the display unit 11 is a character, the use and performance of the drip processing sheet 1 and the product name can be displayed. If the display unit 11 is a graphic, the usage method of the drip processing sheet 1 can be illustrated. If so, the drip processing sheet 1 can be made decorative.

In FIG. 3, the drip processing sheet 1 has a vertical direction A and a horizontal direction B that are orthogonal to each other. In the non-display portion 10, an opening 8 having a hole diameter D ₁ is provided in the vertical direction A and the horizontal direction B. Are formed at intervals P equal to. This interval P is the minimum value of the width of the partition portion 13 formed between the peripheral edge 8a and the peripheral edge 8a (see FIG. 4) of the adjacent openings 8. A part of the display unit 11 shown in the figure extends in a strip shape in the vertical direction A, and has a width Q extending in the horizontal direction B between the chain lines 15 and 15 parallel to each other.

4 is a cross-sectional view taken along line IV-IV in FIG. The upper layer sheet 2 and the lower layer sheet 3 are joined via a hot melt adhesive that is intermittently applied as an intermediate layer 4 as a joining means. The opening 8 in the upper layer sheet 2 has a tubular portion 16 that extends from the peripheral edge 8a and reaches the lower layer sheet 3, and the length L of the tubular portion 16 is preferably in the range of 0.2 to 2 mm. The upper end of the tubular portion 16 is a rim 8a of the opening 8 has a hole diameter _{D 1,} the lower end of the tubular portion 16 has a pore size _{D 2.} Hole diameter D ₂ is made to be smaller than the diameter D ₁ and the same or hole diameter D _1,. Small tubular portion 16 than the diameter D ₂ is pore diameter D ₁ is of a shape shown in phantom 17, since capillary action closer to the lower layer sheet 3 becomes remarkable, drip its capillary action that has entered the opening 8 Quickly moves to the lower sheet 3. In the preferable upper layer sheet 2, the hole diameters D ₁ and D ₂ are in the range of 0.1 to 1.6 mm. The partition part 13 formed between the adjacent opening 8 and the opening 8 has the top part 14 which is the uppermost part in the direction which goes to the upper surface 6 from the lower surface 7 of the upper layer sheet 2, and the top part is shown in the figure. 14 is formed flat. It is preferable that the space | interval P in the partition part 13 exists in the range of 0.01-1 mm so that the air-permeable liquid permeability in the non-display part 10 can be improved.

  The display unit 11 is a non-breathable and non-liquid permeable portion in the upper layer sheet 2. Such a display unit 11 makes it difficult to contact beef with oxygen in the air when, for example, beef is placed on the upper layer sheet 2, thereby preventing the beef from being colored red due to contact with oxygen. May be. Therefore, the present inventor prepares a drip processing sheet 1 in which the width of the character of the display unit 11 shown as the dimension Q in FIG. The thighs were placed and stored in the refrigerator for 12 hours, and after that, the colored state of the portion of the meat that was in contact with the display unit 11 was observed. As a result, when the dimension Q of the display unit 11 was 3 mm or less, the portion that was in contact with the display unit 11 was colored in red and showed a good result that was not significantly different from the portion that was in contact with the non-display unit 10. . Further, when the dimension Q is 3.5 mm or more, the portion that has been in contact with the display unit 11 is colored brown and has a clear difference from the portion that has been in contact with the non-display unit 10, The result that the dimension Q in this case is not a preferable value was shown. In this observation, the size of the display unit 11 in the vertical direction A was changed from 30 to 80 mm. However, the effect of this size on color development could not be confirmed. From such observation results, it is considered preferable that the dimension Q of the display unit 11 does not exceed 3 mm. However, since the display unit 11 achieves the purpose as the display unit 11 by being able to be distinguished from the non-display unit 10, each display unit 11 has an area that can form a plurality of apertures 8. Must have. Therefore, the upper limit of the dimension Q in the case of FIG. 3 is 3 mm. The lower limit of the dimension Q is preferably 0.3 mm for practical use of the drip processing sheet 1.

FIG. 5 is a view similar to FIG. 4 showing an example of the drip absorbing sheet 100 according to the present invention. In the drip absorbing sheet 100 in FIG. 5, the top portion 11 a that is the uppermost portion in the display portion 11 is located above the top surface 14 that is the uppermost portion in the non-display portion 10 or is indicated by a virtual line. As described above, there is a step between the non-display portion 10 and the display portion 11 below the top surface 14. In such a drip absorbing sheet 100, compared with the drip processing sheet 1 of FIG. 4 without such a step, a gap is likely to be generated between the meat placed on the drip absorbing sheet 1 and the upper layer sheet 2 in the vicinity of the step. Meat and air can be contacted in the gap. Incidentally, hole diameter D ₂ of FIG. 5, the tubular portion 16 is shown smaller than the diameter D _1.

  6 is also a view similar to FIG. 5 showing an example of the drip absorbing sheet 100 according to the present invention. In the drip absorbing sheet 100 in FIG. 6, a concave portion 21 and a convex portion 22 are formed in the upper layer sheet 2 of the display portion 11. The recess 21 can be changed to a groove shape extending to the edge of the display unit 11. In such a drip absorbing sheet 100, when meat is placed on the recess 21 or the groove formed thereby, an effect of increasing the chance of contact with air is obtained. Further, the drip that has oozed out in the liquid-impervious display portion 11 flows through the groove-shaped recess 21 toward the opening 8, so that the drip stays in the drip-absorbing sheet 100 and the appearance of meat is improved. It can be prevented from becoming worse, or the growth of bacteria caused by drip can be suppressed.

  In the present invention, the upper layer sheet 2 having the apertures 8 can be obtained by heating a thermoplastic film and adapting it to a mold having a required shape under the action of vacuum pressure. At that time, the opening 8 can be formed by rupturing the film using vacuum pressure. The upper layer sheet 2 and the lower layer sheet 3 can be bonded using a heated embossing roll instead of bonding with a hot melt adhesive.

2 Upper layer sheet 3 Lower layer sheet 6 Upper surface 7 Lower surface 8 Opening 8a Periphery 10 Non-display portion 11 Display portion 16 Tubular portion 21 Groove (concave portion)
100 drip absorption sheet

Claims (5)

A liquid-permeable upper layer sheet having upper and lower surfaces, and a liquid-absorbing lower layer sheet bonded to the lower surface of the upper layer sheet, and a drip that exudes from the meat by placing meat on the upper surface of the upper layer sheet A drip absorbing sheet that can be absorbed by the lower layer sheet,
The upper layer sheet is formed of a thermoplastic film having a thickness of 0.01 to 0.1 mm, and occupies 70 to 99% of the area of the upper surface, and 30 to 30 to the area of the upper surface. A display unit occupying 1%,
The non-display portion is a portion in which a plurality of gas-permeable and liquid-permeable openings are uniformly distributed, and the display portion has an area sufficient to form a plurality of the gas-permeable and liquid-permeable holes, and A non-perforated part surrounded by a non-display part, and any one of the individual and aggregate of the display part constitutes one of a character, a figure and a pattern,
The drip absorbing sheet, wherein a concave portion and a convex portion are formed on the upper surface of the display portion.   The drip absorption sheet according to claim 1, wherein the display part is formed by a band-shaped non-perforated part having a width in a range of 0.3 to 3 mm.   3. The drip absorbing sheet according to claim 1, wherein each of the vent-permeable liquid-permeable holes has a tubular portion that extends in a direction from the upper layer sheet toward the lower layer sheet and reaches the lower layer sheet. In the direction from the lower layer sheet to the upper layer sheet, the second portion forming the uppermost portion in the display portion is the following a and b with respect to the first portion forming the uppermost portion in the non-display portion. The sheet for drip absorption according to any one of claims 1 to 3, which is in any of the above embodiments;
a. An aspect formed at the same height,
b. A highly formed aspect,
c. The aspect formed low.   The drip absorbing sheet according to any one of claims 1 to 4, wherein the recess is a groove extending to an edge of the display unit.

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