JPS586449B2 - fruit hanging bag - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in fruit hanging bags.

Quality improvement,
Bags are generally used to avoid residual toxicity from sprayed pesticides.

By the way, since the sprayed fungicides and insecticides do not directly affect the fruit surface, bagged fruits are susceptible to damage from diseases and pests that attack the fruit.

Therefore, fruit hanging bags, which are paper bags with sterilizing and insecticidal properties, have been put into practical use.

This fruit hanging bag is made of roseine paper sealed with a bactericide or insecticide with paraffin wax or the like in order to retain its bactericidal and insecticidal power over a long period of time.

However, paraffin paper coated with paraffin wax has a disadvantage in that its surface is too smooth and requires time and effort to make bags.

Also, for the same reason, hands often slip when hanging and peeling the fruit bags made of paraffin paper.
As a result, the efficiency of these operations was significantly reduced.

In view of these points, an object of the present invention is to provide a fruit hanging bag that is easy to process and can improve workability such as bag hanging, without impairing the original effects of paraffin paper fruit bags. The gist of this is that in paraffin paper fruit bags made of paraffin coated base paper, rosin, silicone, isoparaffin, polyisobutylene, and low-molecular styrene are added as slip inhibitors to the paraffin coating layer. One or more types of resin from 0.3 to
There is a fruit hanging bag characterized by containing or adhering 30% by weight.

In the present invention, a conventional paper quality can be used as the base paper, and paraffin wax is applied to this paper.

At that time, 0.3 to 30% by weight of rosin, silicone, isoparaffin, polyisobutylene, and low-molecular styrene resin are blended with respect to paraffin wax, heated and melted, and coated onto base paper.

The amount of coating may be a normal amount. Also, instead of heating and melting the slip inhibitor in paraffin wax,
The inhibitor is ground into a fine powder, for example, 200 mesh or less, and this is sprinkled and attached to the surface of the paraffin wax immediately after coating.

The dusting method is a conventional spraying method.

In that case, the amount of adhesion is 0 for paraffin wax.
．． 3 to 30% by weight is preferred.

The amount of the above-mentioned anti-slip agent added may be either too large or too small.

If the proportion of the anti-slip agent is too high, it will be difficult to remove each fruit bag during work, which will actually reduce work efficiency, and if the proportion is too low, the effect of the anti-slip agent will be lost. .

When the anti-slip agent is mixed and melted or applied in powder form to paraffin, a weight ratio of 0.3 to 30% is preferable as described above.

Thus, when a slip inhibitor is melted in paraffin and applied, the rosin, low molecular weight styrene resin, etc. greatly reduce the lubricity of paraffin.

Furthermore, when the anti-slip agent is applied in the form of fine powder, the fine powder is scattered on the surface, which similarly greatly reduces the slipperiness of paraffin.

Therefore, the surface smoothness of these bag papers is significantly lower than that of conventional bag paper simply coated with paraffin.

However, these bag papers have not lost any of the water-repellent properties of paraffin paper.

In order to impart antibacterial and insect repellent properties to the bag paper, it is necessary to treat the bag paper with an antibacterial agent and an insect repellent.

In this case, a base paper treated with one or two of the fungicides or insecticides is used during papermaking, or one or two of the above-mentioned chemicals are mixed into the molten paraffin.

Fig. 1 shows a single-layered fruit hanging bag made of the above-mentioned bag paper.
Of course, it is also possible to create a so-called double fruit hanging bag.

In addition, when the outer bag a is made of the above-mentioned bag paper, for example, roll paper is used as the bag paper of the inner paper b, and when the inner bag b is made of the above-mentioned bag paper, the bag of the outer bag a is used. As the paper, use kraft paper, Hatron paper, or the like that has an appropriate light-shielding property.

Example A 90% by weight of paraffin wax, 5% by weight of rosin, and 5% by weight of polyisobutylene were mixed and heated and melted, and the resultant mixture was added to 40g/m2 of fruit bag raw material at 600 m9/m2.
It was applied at a ratio of 2:2.

The fruit bag shown in Figure 1 was made from the bag paper obtained.

Example B Immediately after coating the base paper with paraffin wax, 200 mesh fine powder of silicone, which weighs 15% by weight relative to the paraffin wax, was sprinkled on the surface of the coated paper and adhered thereto.

A single-layer fruit bag shown in FIG. 1 was made using this bag paper.

Example C A bag paper obtained by mixing 90% by weight of paraffin wax, 5% by weight of rosin, and 5% by weight of polyisobutylene, melting the mixture by heating, and applying it to fruit bag base paper in the same manner as in Example A. I made a fruit hanging bag similar to the one shown in Figure 2.

Example D A bag paper obtained by applying a mixture of 90% by weight of paraffin wax and 10% by weight of isoparaffin to fruit bag base paper in the same manner as in Example A, as shown in Figure 1. I made a single layer fruit bag.

Example E A mixture of 90% by weight of paraffin wax, 5% by weight of polyisobutylene, and 5% by weight of low-molecular-weight styrene resin was heated and melted and coated on fruit bag base paper in the same manner as in Example A. A single-layer fruit hanging bag shown in Figure 1 was made from the same bag paper.

The table below shows the bag paper shown in Examples A, B, C, D, and E above, and the bag paper using only paraffin wax without mixing rosin and polyisobutylene (regular paraffin paper) in Example A. ) shows the results of measuring the smoothness of the bag paper surface.

Note that this measurement was based on the sliding angle measurement method described below.

Note) Sliding angle measurement method: After gluing the sample bag paper to the sloped board surface, place a paperweight weighing 80 g on the top of the sloped surface of the bag paper.

Then, the angle at which the paperweight starts sliding on the bag paper (sliding angle) is measured by increasing the slope of the inclined plate one by one.

As is clear from the above table, the bag paper constituting the fruit bag according to the present invention has a sliding angle that is smaller than that of the conventional fruit bag, and its surface is not as smooth.

Therefore, the fruit hanging bag of the present invention can be made more easily than the conventional paraffin paper fruit bag.

Furthermore, when shipping the bags, when aligning and bundling the bags, bagging the fruit, and peeling the bags, the tips of the fingers do not slip on the surface of the bags, making these operations more efficient. .

For example, if you are sloppy with bag hanging work, the bag will slip and you won't drop it.
Efficiency can be improved by ~7%.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of a fruit bag according to the present invention, and FIG. 2 is a perspective view showing another embodiment of the present invention. a... Outer bag, b... Inner bag.

Claims (1)

[Claims] 1. In a fruit bag made of paraffin paper in which base paper is coated with paraffin, one or more types of rosin, silicone, isoparaffin, polyisobutylene, and low-molecular styrene resin are added to the paraffin coating layer as a slip inhibitor. A fruit hanging bag characterized by containing or adhering 0.3 to 30% by weight of.