JPH02310001A - Production method of wooden spoon and fork - Google Patents

Abstract

PURPOSE: To achieve simple and low-cost mass production by letting a raw timber which is cut in any size through a heating process, a thin-skinned forming process, a cutting process, a drying process, and pressurizing process under particular conditions. CONSTITUTION: A desired raw timber is cut in any size and heated by a high pressure boiler at a temperature of 150 to 160 deg.C for 1 to 3 hours, and then formed in a thin-skinned shape having a thickness of 3 to 3.5 mm. A semi- finished product is formed by cutting the plane shapes of a spoon and a fork in the shapes pressed to the planes, for example, such as the finished spoon and fork originally having plate-shaped and inclined-shaped ups and downs in a food-getting portion and a gripping portion. After the semi-finished product is dried at a temperature of 90 to 110 deg.C in the condition, pressurization is performed by means of a mold so as to form the finished spoon and fork. Where the semi-finished product itself has considerable hardness, the pressurization is performed while adding some steam. Sterilizing process and drying process are then performed.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing wooden spoons and forks that enables mass production of wooden spoons and forks easily and inexpensively.

<Prior art and its problems> Wooden spoons and forks have been in existence for a long time and are loved by many people. The conventional method for manufacturing wooden spoons and forks is as follows. In spoons and forks, the dish-shaped dispersion part and the handle part that slopes at a gentle angle are integrally formed, so even small spoons and forks have a thickness of 5 cm. length 20
The pieces were formed by carving square pieces of wood about cm in size using carving techniques. For this reason, not only is it impossible to exactly duplicate the same product, but there is also the problem that it takes a lot of time to manufacture, and the thinner the product is, the more material is wasted. In addition, during this manufacturing process, the dispersion part is the part that comes into direct contact with the mouth and tongue, so this part must be made particularly thin, and therefore easily breaks when subjected to the slightest external force. They often get damaged, especially during the finishing stage, and all previous efforts go to waste.

On the other hand, since wooden spoons and forks themselves are made using carving techniques, they have a different flavor from metal spoons and forks, and they require a lot of time and materials to manufacture, so they are not expensive. They are not cheap and therefore will be used for a long time. Wooden spoons and forks are coated with waterproof paint in the final finishing stage, but after long-term use, the waterproof paint peels off over time, leaving the wood exposed on the outside. Sometimes I put it away. As a result, this area becomes impregnated with the juices and saliva of food and drinks, and it is necessary to thoroughly disinfect the area after each use, but it is difficult to disinfect the area that is impregnated with wood. Not only did this pose a hygiene problem, but it also caused discoloration.

<Means for Solving the Problems> Therefore, in order to solve the above-mentioned problems, the method for manufacturing wooden spoons and forks according to the present invention is to heat raw wood cut into arbitrary sizes at 150 to 160°C to 1.5°C. A heating step of heating for 3 hours, heating the heated raw wood to a thickness of 3 to 3.5 mm.
A thin skin-like forming process in which the wood is formed into a thin skin with a thickness of Wooden spoons and forks can be easily and inexpensively mass-produced by sequentially applying pressure to semi-finished products to form shapes suitable for spoons and forks. The fork and the fork are disposable.

<Example> Next, an example of the method for manufacturing wooden spoons and forks according to the present invention will be described. The method for manufacturing wooden spoons and forks according to the present invention is carried out by sequentially performing the following steps.

1st step: Heating step: Cut the desired log into any size. This raw wood is heated in a high pressure boiler at 150 to 160℃ for 1.5 hours to 3 hours.
Let it heat up for a while. This heating removes waste products from the wood and prevents future deformation of the wood. The inventor is 15
Good results were obtained by heating at 5° C. for 2 hours.

2nd step: Forming a thin skin The wood that has undergone the first step is formed into a thin skin with a thickness of 3 to 3.5 mm. The inventor used a rotary cutter to 3.
It was formed to have a thickness of 2 mm.

3rd step: Cutting process The wood formed into a thin skin in the 2nd step as described above has a planar shape, but this is cut into the planar shape of a spoon and fork, that is, the originally completed wood. Spoons and forks, for example, have plate-like and slanted undulations on the eating part and the handle part, respectively, and these are cut into shapes that are pressed open flat. At this stage, semi-finished products having shapes similar to spoons and forks are formed. In addition, as a means for cutting as described above, punching (
Just do it like this.

Fourth step: Drying step The semi-finished products cut into planar shapes of spoons and forks in the third step are dried at 90 to 110°C. This allows for complete sanitary treatment. It was dried in a high-pressure drying room at ±100°C for 5 hours.

Fifth step: Pressure step This step is a pressurization step for forming the semi-finished products into the shape of finished spoons and forks, but it can be carried out using a mold. In addition, in the case of pressure treatment, the semi-finished product itself may be quite hard after the drying process described above, so for example, by applying pressure while adding a small amount of steam, the semi-finished product may be hardened. It becomes easier to adapt to the surface of the mold. After that, it is completed by sterilization and drying.

The spoons and forks completed as described above can be used as is, but by coating them with waterproof paint, they can withstand repeated use.

<Effects of the Invention> As described above, according to the method for manufacturing wooden spoons and forks according to the present invention, logs cut into arbitrary sizes are
A heating step of heating at 50 to 160°C for 1.5 to 3 hours, a thin skin-forming step of forming the heated raw wood to a thickness of 3 to 3.5 mm, and a planar shape of a spoon or fork on the thin wood formed into a thin skin. A cutting step of cutting into pieces, and a drying step of drying the semi-finished product after the cutting step at 90 to 110°C.

Since the pressure process of applying pressure to the dried semi-finished product and forming it into shapes suitable for spoons and forks is repeated, wooden spoons and forks can be mass-produced easily and inexpensively, and as a result, the spoons manufactured in this way The fork has the advantage that it can be used in a so-called disposable manner, like disposable chopsticks used in restaurants.

Claims (1)

[Claims] A method for manufacturing wooden spoons and forks, characterized by sequentially performing the following steps (1) to (5). (1) 150 to 160 logs cut to any size
A heating step of heating at ℃ for 1.5 to 3 hours. (2) A thin skin-forming step of forming the heated log to a thickness of 3 to 3.5 mm. (3) A cutting process in which the wood formed into a thin skin is cut into the planar shape of a spoon or fork. (4) A drying step in which the semi-finished product that has undergone the cutting step is dried at 90 to 110°C. (5) A pressurizing process in which the dried semi-finished products are pressurized to form shapes suitable for spoons and forks.