JPS62193983A - Package - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a package in which small pieces of glass Fa female heat insulating material are compressed and packed.

[Prior art] Glass fiber insulation materials are widely used in the walls and ceilings of buildings, but since it is difficult to install them in existing houses, the insulation material is crushed into small pieces. )
A blowing method has been developed in which compressed air is used to blow air into the gaps between walls or into the attic. Small pieces have a small bulk density, and packaging and transportation costs will be high if left as is, so they are compressed into a plate shape, that is, a rectangular parallelepiped shape with a thickness smaller than its width and length, and wrapped in a film-like material such as plastic film or kraft paper. Will be shipped.

Since the small pieces have elasticity, the above-mentioned package (hereinafter simply referred to as the package) has a tendency to gradually swell due to this elastic repulsive force (restoring force). is remarkable.

For this reason, there are disadvantages such as poor loading efficiency when transporting packages, easy collapse of cargo, difficulty in stacking when storing in warehouses, and difficulty in sealing when wrapping with plastic film etc. there were.

(Problems to be Solved by the Invention) The present invention aims to solve the above-mentioned drawbacks of the prior art.

[Structure of the Invention] (Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems, and consists of a small piece of glass fiber heat insulating material whose length on three sides is 1+, fL2.
In the package in which the compressed material compressed into the shape of a rectangular parallelepiped is packed in a film as shown in Figure 3, Sentence 2>fLl, Sentence 3,
Moreover, the present invention provides a package characterized in that the bulk density distribution in the text 1 and text 2 directions is uniform, and that the bulk density distribution in the text 3 direction is smaller in the center than in both edges.

Next, the present invention will be explained in more detail.

Glass FR fiber instant insulation material is manufactured by centrifugal method, flame method, etc. Glass TA fibers with a lam diameter of 3 to 15 pots are sprayed with a binder solid content of 3 to 13 wt% such as phenolic resin to a predetermined density. A material having a density of 10 to 96 kg/ms, which is obtained by heating and compressing the binder to harden the binder, can be suitably used.

The glass fiber insulation material is crushed into small pieces using a crushing device. The size of the pieces is suitably such that the average weight is 0.03 to 1.2 gr, preferably Q, 08 to 0.8 gr. The bulk density of the small pieces is about 8 to 64 kg/m''.The small pieces are sent to a compression device and compressed into a rectangular parallelepiped shape, with an average bulk density of 96 to 1.
48 kg/m", preferably 100-124 kg/m"
shall be.

As the compression device, the device shown in FIG. 3 can be suitably used. A small piece 5 is fed from a hopper 6, an iron plate 7 is lowered by a cylinder 8, and is press-fitted into a box 9 of a predetermined shape. At this time, by providing hoppers 6 on both sides and supplying a larger amount of small pieces at the edges than at the center, the bulk density at the edges can be made greater than at the center.

Figure 1 shows thickness pattern 1 and length pattern 2 obtained in this way.
FIG. 2 is a perspective view of a package 3 of the present invention in which a compressed material 1 having a rectangular parallelepiped shape of a width pattern 3 is wrapped with a film 2; Note 4
．． 4 is a seal portion of the film.

The density of the compressed product of the present invention does not change in the thickness direction and the length direction and is uniform (within the range of errors and variations), and the density in the width direction is large at the ends and small at the center. . Tightness of compressed material 1 +, length fL2, width fL
3 is fL+=15~25cta, respectively! L 2 =
90~100cm, J13=50~60c+
It is appropriate to set it to about a.

Figure 2 is a graph showing the density distribution in the width direction, where the density at the edges is larger than the density at the center.The preferred density is 110 to 124 kg/rrr at the edges,
The density of the center part is 83 to 91 kg/m'', and it is appropriate that the density of the edge part is about 1.2 to 1.5 times the density of the center part. is almost constant, and the length of the high-density region at the edge and the length of the center are about 20 to 40% and 10 to 55% of the whole mouth, respectively, and the density gradually increases in the middle (approaching the center). It is particularly desirable to provide an intermediate region whose respective length decreases by about 2.5 to 5% of the gold mine.

Note that the film can preferably be made of vinyl chloride, polyethylene, kraft paper, etc. and has a thickness of about 80 to 150 g.

(Example) Glass #Jl with a thickness of 7JL! Male density 24kg/m
'Small pieces of glass ta fiber insulation (average weight 0.2 gr)
Compress 10 kg, thickness 20cm, length 95ca+,
A compressed product in the shape of a rectangular parallelepiped with a width of 55 cm, and a bulk specific gravity of 110 kg/m at both edges in the width direction (length 20 CIB).
', the density of the central part (length locm) is 90kg/rn"
In the middle thereof, regions each having a length of 2.5 cm were formed, and the density decreased as the density approached the center, as shown in FIG.

This compressed material has a thickness of 90. Packages packed with polyethylene film have a small bulge in the thickness direction, with 1! It was easy to lift the I model, the loading efficiency was about 1.2 times that of conventional products (same shape, same weight, and uniform density), and there was no load collapse.

Also, the film was easy to seal.

(Effects of the invention) The packaging of the present invention is easy to stack, has high loading efficiency,
It has the advantage that the load does not collapse and sealing is easy.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view of the packaging body of the present invention, f52
The figure is a graph showing the density distribution, and FIG. 3 is a front view showing the method for manufacturing the compressed product of the present invention. In the figure, 1 is a compressed product, 2 is a film, 3 is a package, and 4
is a seal part, 5 is a small piece, 6 is a hot spring, 7 is an iron plate, 8
9 indicates a cylinder, and 9 indicates a box. Diagram 2 Diagram 3

Claims (1)

[Claims] A small piece of glass fiber insulation material with three sides of length l_1 and l_2
, l_3 in a package in which a compressed product compressed into the shape of a rectangular parallelepiped is packed with a film, l_2>l_3, l_1, and the bulk density distribution in the l_1 and l_2 directions is uniform, and the bulk density distribution in the l_3 direction is at the center. 1. A package characterized in that the edge portion is smaller than both edge portions.