JP4077489B2 - Manufacturing method of shaped objects - Google Patents

Description

The present invention relates to a method for manufacturing a modeled object , and more particularly to a method for manufacturing a modeled object that is modeled using a modeling sheet for folding and modeling like origami.

  Traditionally, in the world of handicrafts, clothes and stuffed animals are produced from cloth by means such as sewing.

  However, since handicrafts require a certain level of skill, it is difficult for people who are unfamiliar with handicrafts or those who are not good at handicrafts to make clothing and stuffed animals from cloth.

Thus, various inventions related to handicrafts have been proposed (see, for example, Patent Document 1).
JP 2005-325479 A

  However, in conventional handicrafts, although a stuffed toy can be produced, it is difficult to fold and shape a cloth like origami. This is because the folds are not easily formed even when the cloth is generally used in handicrafts. Although a method of folding with a crease with an iron is conceivable, it is troublesome to use an iron, so using an iron is not a practical method.

  On the other hand, origami is gaining popularity not only in Japan but also worldwide, especially in Japan, from children to the elderly. For this reason, if it can be easily shaped with cloth like origami in the world of handicrafts, it will be shaped by cloth not only for those who have traditionally enjoyed handicrafts but also for those who are unfamiliar with handicrafts or who are not good at handicrafts. Can be enjoyed.

The subject of this invention is providing the manufacturing method which can obtain easily the modeling thing shape | molded like origami from a sheet-like material .

A manufacturing method of a model according to the first invention is a method of manufacturing a model formed by a modeling sheet including a sheet main body and a water-soluble cured layer, and a curing agent is applied and sprayed to the sheet main body. Alternatively, a curing treatment process to be impregnated, a drying process for drying a sheet body coated with, sprayed with or impregnated with a curing agent, a modeling process for modeling by folding the dried sheet body , and a modeled object in the modeling process Washing with water to remove at least a part of the cured layer .

  In this manufacturing method of a modeled article, a sheet body having a cured layer on at least one surface of the sheet body can be manufactured by a curing process and a drying process, and the sheet body is folded and modeled in the modeling process. Thus, in this manufacturing method, a model can be manufactured from the sheet body so as to make origami.

Here, the “sheet body” means a sheet-like material composed of fibers, and the sheet body includes non-woven fabrics, felts and the like in addition to woven fabrics and knitted fabrics (knitted fabrics). The “modeling sheet” mainly means a sheet-like sheet for folding and modeling like origami. “Impregnation” means that the object to be processed such as a sheet main body is immersed in a liquid such as a curing agent so that the liquid is infiltrated into the object to be processed.

  The manufacturing method of the shaped article according to the second invention is the manufacturing method according to the first invention, wherein the hardened layer contains one of a water-soluble polymer and starch.

  The manufacturing method of the molded article according to the third invention further includes a sewing step of sewing at least a part of the molded article in the modeling step before the water washing step.

In the method for manufacturing a shaped article according to the present invention , a shaped article shaped like origami can be easily obtained from a sheet-like material .

  Hereinafter, an embodiment of a modeling sheet according to the present invention will be described based on the drawings.

[First Embodiment]
(1) Modeling sheet | seat The structure of the sheet | seat for modeling which concerns on 1st Embodiment of this invention is demonstrated using FIG. 1A is a schematic perspective view of a modeling sheet according to the first embodiment of the present invention, FIG. 1B is an example of a partial cross-sectional view of the modeling sheet, and FIG. 1C is a part of the modeling sheet. The other example of sectional drawing is shown.

  As shown in FIG. 1, the modeling sheet 1 includes a cloth 2 as a sheet body made of a square woven fabric, and a cured layer 3 impregnated in the cloth 2. Examples of the fabric 2 include woven fabric, knitted fabric (knitted fabric), non-woven fabric, and felt. In addition, although the cloth 2 of this embodiment is a square, it is not restricted to this. For example, the shape may be a rectangle such as a rectangle or another shape according to a modeled object.

  The hardened layer 3 is a layer for imparting a slight strength to the cloth 2 in order to facilitate the formation of a fold, and is impregnated in the cloth 2, for example. More specifically, as shown in FIG. 1 (b), the entire cured layer 3 is contained in the fiber 2a, or a part of the cured layer 3 is contained in the fiber 2a as shown in FIG. 1 (c). The cured layer 3 is formed on both surfaces of the cloth 2 while being included between the fibers 2a.

  The hardened layer 3 of this embodiment is composed of a water-soluble polymer. Specifically, the hardened layer 3 is obtained by drying a cloth 2 containing a vinyl acetate polymer such as polyvinyl acetate as a main component and impregnated with a curing agent containing the vinyl acetate polymer.

  The hardened layer 3 may be a natural adhesive mainly composed of starch, or a synthetic adhesive such as vinyl acetate resin emulsion adhesive (adhesive for woodworking), in addition to those mainly composed of vinyl acetate polymer. Can be considered. In particular, by using a water-soluble curing agent such as a vinyl acetate polymer, starch, or a vinyl acetate resin emulsion adhesive, a part of the cured layer 3 can be removed by washing with water as described below, The texture of the model can be changed.

(2) Manufacturing method of modeling sheet | seat Here, the manufacturing method of the modeling sheet | seat 1 is demonstrated using FIG. The manufacturing process figure of the sheet | seat for modeling which concerns on FIG. 2 at 1st Embodiment of this invention is shown.

  In the manufacturing method of the modeling sheet 1, the cloth 2 having a desired shape is first cut from the cloth material (cutting step S1). The cut cloth 2 is impregnated with a curing agent (curing treatment step S2). As described above, since the curing agent is made of a water-soluble polymer or the like, in the curing processing step S2, for example, the cloth 2 is immersed in an aqueous solution of the curing agent. The concentration of the aqueous solution of the curing agent can be adjusted by the material of the cloth 2. The thickness (strength) of the cured layer 3 can be changed by changing the concentration of the aqueous solution. For example, when the concentration of the aqueous solution of the curing agent is high, the thickness of the cured layer 3 is increased and the strength is further improved.

  In the curing treatment step S2, a curing agent may be applied to the cloth 2 or sprayed instead of impregnation. Even if the curing agent is a natural adhesive or a synthetic adhesive, the curing agent (as it is or in the form of an aqueous solution) can be impregnated, applied or sprayed by the same process.

  Next, the cloth 2 impregnated with the curing agent is dried, for example, by heating or blowing warm air or cold air (drying step S3). Here, heating means drying at a temperature higher than room temperature. As a result, for example, moisture is evaporated from the curing agent to cause a dehydration reaction in the curing agent, and as a result, the cured layer 3 having improved strength is formed. Thereby, the modeling sheet 1 having the cured layer 3 can be manufactured. In addition, it may replace with the forced drying in drying process S3, and natural drying, such as normal temperature and sun-drying, may be sufficient.

(3) Modeling with Modeling Sheet Next, modeling with the model sheet will be described with reference to FIGS. An example of modeling using a modeling sheet is shown in FIGS.

  First, for example, the modeling sheet 1 is folded into a quarter so that the side on which the cured layer 3 of the modeling sheet 1 is formed is inside (FIGS. 3A and 3B). Then, the triangular bag 11 is opened and folded (FIG. 3C).

  After the two triangular bags 11 are folded, the four outer portions 12 are folded toward the center side (FIG. 4A). Then, after the modeling sheet 1 is rotated by 180 ° C. so that the top and bottom are reversed, the four bags 13 are opened and folded (FIG. 4B).

  Then, the four outer portions 14 are folded toward the center side (FIG. 5A), and the four triangular portions 15 are folded outward (FIG. 5B). Finally, the inside is opened while the bottom 16 is formed into a box shape, and a decoration box (modeled object 6) made of the modeling sheet 1 is completed (FIG. 5C).

  If it is this modeling sheet 1, since it cracks in the hardened layer 3 when modeling in this way, a crease can be formed clearly. Thus, for example, a relatively sharp shape such as part A in FIGS. 3B and 3C and part B in FIG. 5 and a shape such as corner C of the decorative box in FIG. Can also be molded neatly.

  Furthermore, in a conventional cloth having no hardened layer, it is necessary for the operator to hold it by hand or to fix a part by sewing in order to maintain the state shown in FIGS. 5 (a) and 5 (b), for example. is there. However, in this modeling sheet 1, a plurality of creases are clearly formed by the hardened layer 3, and portions other than the creases are kept in a planar shape. For this reason, even if it folds into a shape like FIG. 5 (a) and (b), it becomes easy to maintain the state.

  Thus, even if it is this modeling sheet 1, even if it is a three-dimensional modeled object, it can be modeled easily like origami.

  Moreover, since this modeling sheet 1 uses the cloth 2 as a base material, it is harder to tear than origami. For this reason, when modeling something with a cut in advance, the modeling sheet 1 can be prevented from being broken from the cut, and can be modeled more easily than origami, and a strong model can be obtained. it can.

(4) Manufacturing method of modeling object In this modeling sheet 1, the modeling object from which at least one part of the hardened layer 3 was removed can be obtained by further processing with respect to the modeling object 6. FIG. Specifically, as shown in FIG. 2, when modeling by the modeling sheet 1 is a modeling process S4, a part of the modeled object 6 modeled in the modeling process S4 is fixed by sewing as necessary (sewing process). S5). More specifically, as shown in FIG. 6A, for example, a pair of roots 19 of the triangular portion 17 are sewn together with the main body 20 side by a thread 18.

  Thereafter, the shaped article 6 is washed with water (water washing step S6). At this time, since the curing agent is made of a water-soluble polymer, the cured layer 3 is dissolved in water and a part thereof is washed away. Moreover, since the sewing process is partially performed in the sewing step S5, the shape of the shaped article 6 is not easily collapsed in the washing step S6.

  When the shaped article 6 washed with water is dried (second drying step S7), at least a part of the cured layer 3 is removed from the modeling sheet 1 as shown in FIG.

  Thus, in this manufacturing method, in the modeling step S4, the effect of facilitating modeling by the hardened layer 3 is obtained, and finally, the hard texture by the hardened layer 3 is suppressed, and the texture of the model 6 is held by the soft cloth 2 Can be close to the texture.

  The sewing step S5 may be unnecessary depending on the shape of the modeled object.

[Second Embodiment]
In the first embodiment described above, the cloth is impregnated with the curing agent, but the curing agent may be applied or sprayed on one surface of the cloth. Specifically, as illustrated in FIGS. 7A to 7C, the modeling sheet 101 according to the second embodiment includes a cloth 102 cut into a square and one surface of the cloth 102 (the lower surface in FIG. 7). ) And the hardened layer 103 formed thereon. As shown in FIG. 7C, the hardened layer 103 forms a thin layer on one surface of the cloth 102, and a part of the hardened layer 103 enters the fibers 102 a of the cloth 102.

  This modeling sheet 101 can be easily modeled like origami as in the first embodiment. In addition, since the cured layer 103 is formed only on one surface, the aesthetic appearance of the pattern is not impaired by the cured layer 103 when a pattern or the like is printed on the other surface of the cloth 102.

  The hardened layer 103 may not enter the inside of the fibers 102a but only enter between the fibers 102a.

[Third Embodiment]
In the second embodiment described above, the cured layer is applied or sprayed only on one side of the cloth, but the cured layer may be applied or sprayed on both sides of the cloth. Specifically, as illustrated in FIGS. 8A to 8C, the modeling sheet 201 according to the third embodiment includes a cloth 202 cut into a square, and both surfaces of the cloth 202 (the upper surface and the upper surface in FIG. 8). And a hardened layer 203 formed on the lower surface. As shown in FIG. 8C, the hardened layer 203 forms thin layers on both surfaces of the cloth 202, and a part of the hardened layer 203 enters the inside of the fibers 202 a of the cloth 202.

  This modeling sheet 201 can be easily modeled like origami as in the first and second embodiments described above.

  The hardened layer 203 may not enter the inside of the fibers 202a but only enter between the fibers 202a. Further, the hardened layer 203 is not limited to application or spraying, and even if it is impregnated, the hardened layer 203 as in this embodiment can be formed by adjusting the concentration of the aqueous solution of the hardener.

[Other Embodiments]
The specific configuration of the present invention is not limited to the above-described embodiment, and various changes and modifications can be made without departing from the scope of the invention.

  In the above-described embodiment, the water-soluble polymer is described as an example of the curing agent, but is not limited thereto. For example, other materials may be used as long as the strength is improved by dehydration reaction.

  Moreover, although the relationship between cloth and a hardened layer is shown by the partial sectional view of the modeling sheet, it is not limited to the state shown in the sectional view.

The schematic diagram of the sheet for modeling concerning a 1st embodiment of the present invention. The manufacturing process figure of the sheet | seat for modeling which concerns on 1st Embodiment of this invention. An example of modeling using a modeling sheet. An example of modeling using a modeling sheet. An example of modeling using a modeling sheet. An example of modeling using a modeling sheet. The schematic diagram of the sheet for modeling concerning a 2nd embodiment of the present invention. The schematic diagram of the sheet for modeling concerning a 3rd embodiment of the present invention.

Explanation of symbols

1,101,201 Modeling sheet 2,102,202 Cloth (sheet body)
3,103,203 Hardened layer 5,6,7 Modeled object S1 Cutting process S2 Curing process S3 Drying process S4 Modeling process S5 Sewing process S6 Washing process S7 Second drying process

Claims (3)

A manufacturing method of a modeled object modeled by a modeling sheet provided with a sheet main body and a water-soluble cured layer,
A curing treatment step in which a curing agent is applied, sprayed or impregnated on the sheet body;
Drying the sheet body coated with, sprayed with or impregnated with the curing agent, and forming the cured layer; and
A modeling process for modeling by folding the dried sheet body,
A water washing step of washing the shaped object in the modeling step to remove at least a part of the cured layer;
A method for manufacturing a shaped article including:   The hardened layer contains one of a water-soluble polymer and starch,
The manufacturing method of the molded article of Claim 1.   Further including a sewing step of sewing at least a part of the modeled object in the modeling step before the washing step,
The manufacturing method of the molded article of Claim 1 or 2.

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