JPH08119341A - Liquid absorbing sheet-shaped material - Google Patents

Abstract

PURPOSE: To efficiently absorb liquid leaking out from foodstuffs and surely prevent the liquid from returning to the foodstuffs by bonding a water/oil absorbing paper layer partially to the underside of a liquid non-absorbing film layer with a through hole whose edge slightly downwardly protrude. CONSTITUTION: A liquid absorbing sheet material 100 is constituted by bonding a water/oil absorbing paper layer 130 partially to the underside of a liquid non-absorbing film layer 110 with through holes 111 whose edges protrude slightly downwardly. And a liquid non-absorbing film layer 140 and a base material paper layer 150 may be successively bonded to the underside of the layer 130. Thus adhesives may rarely close the through holes 111 of the layer 110, add hence water or oil leaking out of foodsuffs can be easily absorbed. And since the layer 110 having irregularities thereon is bonded to the layer 130, liquid having once absorbed into the layer 130 is prevented from returning to the foodstuffs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid absorbent sheet material used for packaging fresh foods such as fresh fish and meat and fried foods such as tempura and fries.

[0002]

2. Description of the Related Art As fresh foods such as fresh fish and meat, liquid juice called "drip" leaks out with time in a packaging pack. In addition, fried foods such as tempura and fries are
Water or oil leaks in the packaging pack. Liquids such as sap, water, and oil significantly reduce the commercial value such as the taste and the quality of foods and the appearance, and thus have to be promptly removed. Therefore, in the past, for example,
The drip absorption sheet disclosed in Japanese Utility Model Publication No. 63-45302 has been devised.

[0003]

However, in the conventional liquid absorbing sheet, the liquid once absorbed reverts to a portion of the food which is in contact with the liquid absorbing sheet to reduce the quality and commercial value of the food. was there.

The present invention solves the above-mentioned conventional problems, prevents the liquid once removed from returning to food, and keeps food hygienic and without degrading quality or commercial value. Moreover, the present invention provides a liquid absorbing sheet material that can be used not only by using a sheet but also by processing it into a package.

[0005]

The first invention, as shown in FIG. 1, is the lower surface of a perforated non-liquid absorbent film layer (110) in which the edge of the through hole (111) projects slightly downward. A water-absorbent / oil-absorbent paper layer (130) is partially adhered to the liquid absorbent sheet material (100).

The second invention, as shown in FIG. 1, is a water-absorbing / oil-absorbing paper on the lower surface of the perforated non-liquid absorbent film layer (110) in which the edge of the through hole (111) projects slightly downward. The layer (130) is provided by partially adhering, and the water absorption
A liquid-absorbent sheet material (100) characterized in that a non-liquid-absorbent film layer (140) and a base paper layer (150) are sequentially adhered to the lower surface of an oil-absorptive paper layer (130). .

The through-holes formed in the perforated non-liquid absorbent film layer are usually circular ones having a diameter of about 1 mm, but slit-like ones may be used so that the liquid leaking from the food is Easy to permeate and absorb water once
It is necessary to select a material having an opening area that makes it difficult for the liquid to return when absorbed by the oil-absorbent paper layer. In addition, the material of the film is such that polyethylene or
Polyolefin such as polypropylene or polyester such as polyethylene terephthalate may be used.

As the water-absorbent / oil-absorbent paper layer, towel paper, non-woven fabric, non-sized paper or the like can be used.

The method of partially adhering the perforated non-liquid absorptive film layer and the water-absorbing / oil-absorptive paper layer may be a dry laminating method or a wet laminating method.
On the water-absorbent / oil-absorptive paper layer, an adhesive is applied in a dot shape, a linear shape, a lattice stripe shape, etc.
It partially adheres to the water / oil absorbent paper layer.

[0010]

In the liquid absorbent sheet material of the present invention, since the adhesive is partially applied on the water-absorbent / oil-absorbent paper layer to adhere the perforated non-liquid absorbent film layer, the adhesive is The perforations of the perforated non-liquid absorbent film layer are hardly blocked, and the liquid of water or oil leaked from food is easily absorbed.

Further, the perforated non-liquid absorbent film layer comprises:
Since the edges of the through-holes are attached to the water-absorbent / oil-absorbent paper layer with a level difference with the edge protruding slightly downward, the food placed on the liquid-absorbent sheet-shaped material absorbs water and oil. -It is extremely unlikely that the oil-absorbent paper layer will come into contact with the through-hole portion of the perforated non-liquid absorbent film layer, and therefore, the liquid once absorbed by the water-absorbent / oil-absorbent paper layer,
You can prevent going back to food.

When a non-liquid absorbent film layer and a base paper layer are sequentially adhered to the lower surface of the water-absorbent / oil-absorbent paper layer,
The liquid absorbed by the water-absorbing / oil-absorbing paper layer can be prevented from leaking through to the back surface of the sheet by the non-liquid absorbing film layer, and the base paper layer imparts rigidity to the sheet.

[0013]

【Example】

Example 1 First, a paperboard having a basis weight of 310 g / m ² and 0.3
mm-thick towel paper is laminated by extrusion laminating with polyethylene having a thickness of 15 μm, and a polyurethane adhesive is applied to the surface of the towel paper by dry laminating as shown in FIG. Is applied in a grid pattern with a width of 1.5 mm and an interval of 15 mm, and a separately prepared perforated polyethylene film having a thickness of 15 μm is partially adhered, and the [upper] perforated polyethylene film layer shown in FIG. Liquid-absorbent film layer) (110) / Towel paper layer (water-absorption / oil-absorption paper layer)
(130) / polyethylene layer (non-liquid absorbent film layer) (140) / paperboard layer (base paper layer) (150) [lower side] Liquid absorbent sheet material (100) of the present embodiment
Was produced. The perforated polyethylene film is provided with through-holes having a diameter of about 1 mm and whose edge portions slightly project downward, with a vertical spacing of 1 mm and a horizontal spacing of 1 mm.

The above-mentioned liquid-absorbent sheet material of this example was cut into a predetermined size, laid on the bottom of a foam polystyrene tray, and fish fillets were placed on the liquid-absorbent sheet material. Body fluids and water droplets from the fish fillet were absorbed by the towel paper layer through the through holes in the perforated polyethylene film layer. Then, the fish fillet was maintained hygienically without impairing its appearance, and its quality and commercial value did not deteriorate. The liquid absorbed in the towel paper layer did not return to the fish fillet.

Example 2 Using the liquid absorbent sheet material produced in Example 1, a tray was produced by a compression molding method. When the fried tempura was placed on this tray, oil was absorbed by the towel paper layer through the through holes of the perforated polyethylene film layer. Tempura was maintained hygienically without impairing its appearance and could be retained without deterioration in quality or commercial value. Moreover, the oil once absorbed in the towel paper layer returned to the part of the tempura that came into contact with the tray, and the tempura did not become muddy.

[0016]

The liquid absorbent sheet material of the present invention is easy to absorb and remove liquids of water and oil leaking from foods,
Moreover, the liquid once absorbed by the water-absorbent / oil-absorbent paper layer is
It rarely reverts to food. Therefore, it is possible to maintain the quality and commercial value of food without lowering it. Further, the liquid absorbing sheet material of the present invention can be used not only as a sheet but also as a package after being processed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a liquid absorbent sheet material of Examples 1 and 2 as an example of the present invention.

FIG. 2 is a plan view showing a bonded portion between a perforated film of a liquid absorbent sheet material and water-absorbing / oil-absorbing paper of Examples 1 and 2 as an example of the present invention.

[Explanation of symbols]

 10 ... Food 100 ... Liquid-absorbent sheet material 110 ... Perforated film layer 111 ... Through-hole 120 ... Adhesive part 130 ... Water-absorption / oil-absorption paper layer 140 ... Non-liquid-absorptive film layer 150 ... Base Material layer

Claims (2)

[Claims] 1. A liquid absorbing material, characterized in that a water-absorbing / oil-absorbing paper layer is partially adhered to a lower surface of a perforated non-liquid-absorbent film layer in which an edge portion of a through hole projects slightly downward. Sheet material. 2. A water-absorbing / oil-absorbing paper layer is provided by partially adhering the water-absorbing / oil-absorbing paper layer to the lower surface of a perforated non-liquid-absorbent film layer in which the edge of the through hole projects slightly downward. A liquid-absorbent sheet material, comprising a non-liquid-absorbent film layer and a base paper layer, which are sequentially adhered to the lower surface of the layer.