TW201323172A - Manufacturing method of curved-surface soft composite material containing PU foamed material - Google Patents

Abstract

A manufacturing method of curved-surface soft composite material containing PU foamed material is disclosed, wherein a second mold and a first soft material disposed in a first mold cooperatively define a filling space and a prepared PU foaming composition is allowed to foam into a PU foamed material inside the filling space so as to obtain a curved-surface composite material. Or, a second soft material disposed in a second mold and a first soft material disposed in a first mold cooperatively define a filling space and a prepared PU foaming composition is allowed to foam into a PU foamed material inside the filling space, so as to form a curved-surface soft composite material. By filling the filling space with the PU foamed material to prop up/extend the soft material, the soft material is perfectly fitted to a predetermined curved-surface of the mold.

Description

Method for preparing curved soft composite material containing PU foam material

The invention relates to a method for preparing a soft composite material, in particular to a method for preparing a curved soft composite material containing a PU foam material.

Referring to FIG. 1 , a general method for manufacturing a curved soft composite material containing a PU foam material is to first pour a prepared PU foam composition 11 into a set of molds 12 to form a PU foam material 13 having a curved surface, and then Applying an adhesive 14 to the surface of the PU foaming material 13, and finally applying a soft material 15 to the surface of the PU foaming material 13, and bonding the soft material 15 to the PU foaming material 13 to form The curved soft composite material 1.

Due to the curved surface configuration of the PU foaming material 13, and the viscosity of the adhesive 14, the soft material 15 is likely to generate bubbles 16 between the soft material 15 and the PU foaming material 13 during the laying process. The soft material 15 and the curved surface of the PU foam material 13 cannot be bonded, and the soft material 15 of the curved soft composite material 1 is not easily adhered to the curved surface of the PU foam material 13 in the final product.

Accordingly, it is an object of the present invention to provide a method for producing a curved soft composite material comprising a PU foamed material which is applied to a surface of a PU foamed material.

Therefore, the method for preparing a curved soft composite material containing a PU foam material comprises the steps of: (a) disposing a first soft material on a predetermined curved surface of a first mold; (b) placing one having a material path; The second mold moves closer to the first mold, and the second mold cooperates with the first soft material on the first mold to define a filling space; (c) injects a prepared PU foaming composition into the mold a filling space; (d) the PU foaming composition is foamed into a PU foaming material in the filling space; and (e) heating the first soft material and the PU foaming material to obtain a curved soft composite material .

Further, another method for manufacturing a curved soft composite material comprising a PU foam material comprises the steps of: (a) disposing a first soft material on a predetermined curved surface of a first mold; (b) The second soft material is disposed on a predetermined curved surface of a second mold, and the second soft material has a feeding hole, and the second mold further has a material path communicating with the feeding hole; (c) the first The second mold moves closer to the first mold, so that the second soft material on the second mold cooperates with the first soft material on the first mold to define a filling space; (d) foaming a prepared PU The composition is poured into the filling space; (e) the PU foaming composition is foamed into a PU foaming material in the filling space; and (f) heating the first soft material, the second soft material and the PU The foam material is obtained to obtain a curved soft composite material.

The manufacturing method of the present invention has an effect of filling the filling space by the PU foaming material and stretching the soft materials to apply the soft material of the curved soft composite material to the surface of the PU foaming material.

The foregoing and other technical features, features and advantages of the present invention will be apparent from

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2 and FIG. 3, a first preferred embodiment of the method for manufacturing a curved soft composite material comprising a PU foam material comprises the following steps: Step 201: placing a first soft material 21 in a first mold 3. a predetermined curved surface 31, and the first soft material 21 is fixed to the first mold 3, the first mold 3 further has a first mold pattern portion 32 protruding from the predetermined curved surface 31, whereby the first A soft material 21 is fixed to the first mold 3 so that the first soft material 21 does not move in a subsequent step. In this embodiment, the predetermined curved surface 31 of the first mold 3 is a substantially three-dimensional square surface; it is worth mentioning that the first soft material 21 may be a woven fabric, a PVC cloth or a PU cloth; The mold pattern portion 32 may be a character, a pattern, a texture, or a combination of text and a pattern, such as a trademark.

Step 202 is to move a second mold 4 close to the first mold 3, and the second mold 4 cooperates with the first soft material 21 on the first mold 3 to define a filling space 5, the filling space 5 has An air escaping portion 51 that communicates with the outside air to provide an air leakage path, as shown in FIG. 4, the second mold 4 has a predetermined curved surface 41, a second mold pattern portion 42 recessed in the predetermined curved surface 41, and a material The passage 43 communicates with the filling space 5, and the escape portion 51 is located between the predetermined curved surface 41 of the second mold 4 and the first soft material 21. In this embodiment, the predetermined curved surface 41 of the second mold 4 is also a substantially three-dimensional square surface, but the size is smaller than the predetermined curved surface 31 of the first mold 3, so the escape portion 51 is a quadrangular shape. It is worth mentioning that the second mold pattern portion 42 may be a character, a pattern, a texture, or a combination of a character and a pattern, such as an anti-slip texture.

Step 203 is to inject a prepared PU foaming composition 6 into the filling space 5 via the channel 43.

Step 204 is that the PU foaming composition 6 is foamed into a PU foaming material 22 in the filling space 5, whereby the PU foaming material 22 fills the filling space 5, and forms a two-curved shape respectively. a mold 3 and an outer surface 221 and an inner surface 222 of the predetermined curved surface 31, 41 of the second mold 4, at this time, the PU foam material 22 supports the first soft material 21 to enable the first soft material 21 The outer surface 221 of the PU foam material 22 is applied.

Step 205 is to heat the first soft material 21 and the PU foam material 22 to obtain a curved soft composite material 2, which can adjust the heating temperature and the heating time according to the composition of the different PU composition 6, preferably, the heating temperature. Between 35 ° C ~ 100 ° C, heating time between 3 minutes and 20 minutes. The curved soft composite material 2 includes a material first curved surface 23 that conforms to a predetermined curved surface 31 of the first mold 3, a material formed on the first curved surface 23 of the material and having the same contour as the first mold pattern portion 32. a first pattern portion 231, a second curved surface 24 of material conforming to the predetermined curved surface 41 of the second mold 4, and a material formed on the second curved surface 24 of the material and having the same contour as the second mold pattern portion 42 The second pattern portion 241 can thereby fix the first soft material 21 and the PU foam material 22 to each other to obtain the curved soft composite material 2.

Thus, the first preferred embodiment can produce the curved soft composite material 2 and produce the first soft material 21 of the curved soft composite material 2 to be applied to the outer surface 221 of the PU foam material 22.

Referring to FIG. 5 and FIG. 6, a second preferred embodiment of the method for manufacturing a curved soft composite material comprising a PU foam material comprises the following steps: Step 501 is: placing a first soft material 71 on a first mold 3. A predetermined curved surface 31 is fixed to the first mold 3, and the first mold 3 further has a first mold pattern portion 32 protruding from the predetermined curved surface 31. Thereby, the first soft material 71 is fixed to the first mold 3, so that the first soft material 71 can be prevented from moving in a subsequent step. In this embodiment, the predetermined curved surface 31 of the first mold 3 is a substantially three-dimensional square surface; it is worth mentioning that the first soft material 71 may be a woven fabric, a PVC cloth or a PU cloth; The mold pattern portion 32 may be a character, a pattern, a texture, or a combination of text and a pattern, such as a trademark.

Step 502 is to set a second soft material 72 on a predetermined curved surface 41 of a second mold 4, and fix the second soft material 72 to the second mold 4. The second soft material 72 has a feed hole. 721, the second mold 4 further has a second mold pattern portion 42 recessed in the predetermined curved surface 41, and a channel 43 communicating with the inlet hole 721, whereby the second soft material 72 is fixed to The second mold 4 enables the second soft material 72 to not move in a subsequent step. It is worth mentioning that the second soft material 72 can be woven fabric, PVC cloth or PU cloth.

Step 503 is to move the second mold 4 closer to the first mold 3, so that the second soft material 72 on the second mold 4 cooperates with the first soft material 71 on the first mold 3 to define a filling space. 8. The filling space 8 has an air escaping portion 81 that communicates with the outside air to provide an air leakage path. The material path 43 of the second mold 4 communicates with the filling space 8, and the air escaping portion 81 is located at the second soft material. 72 is between the first soft material 71. In this embodiment, the predetermined curved surface 41 of the second mold 4 is also a substantially three-dimensional square surface, but the size is smaller than the predetermined curved surface 31 of the first mold 3. Therefore, the escape portion 81 is a substantially quadrangular shape. It is worth mentioning that the second mold pattern portion 42 may be a character, a pattern, a texture, or a combination of a character and a pattern, such as an anti-slip texture.

Step 504 is to inject a prepared PU foaming composition 6 into the filling space 8 via the channel 43.

Step 505 is that the PU foaming composition 6 is foamed into a PU foaming material 73 in the filling space 8, whereby the PU foaming material 73 fills the filling space 8 and forms a two-curved shape respectively. a mold 3 and an outer surface 731 and an inner surface 732 of the predetermined curved surfaces 31, 41 of the second mold 4, at this time, the PU foam material 73 respectively supports the first soft material 71 and the second soft material 72, The first soft material 71 and the second soft material 72 can be respectively applied to the outer surface 731 and the inner surface 732 of the PU foam 73.

Step 506 is to heat the first soft material 71, the second soft material 72 and the PU foam material 73 to obtain a curved soft composite material 7, which can adjust the heating temperature and the heating time according to the composition of the different PU composition 6. Preferably, the heating temperature is between 35 ° C and 100 ° C and the heating time is between 3 minutes and 20 minutes. The curved soft composite material 7 includes a material first curved surface 74 that conforms to the predetermined curved surface 31 of the first mold 3, a material formed on the first curved surface 74 of the material and having the same contour as the first mold pattern portion 32. a first pattern portion 741, a second curved surface 75 of a material that is adhered to the predetermined curved surface 41 of the second mold 4, and a material formed on the second curved surface 75 of the material and having the same contour as the second mold pattern portion 42. The second pattern portion 751 can thereby fix the first soft material 71, the second soft material 72, and the PU foam material 73 to each other, thereby obtaining the curved soft composite material 7.

As such, the second preferred embodiment can also produce the same function as the first preferred embodiment, and the first soft material 71 and the second soft material 72 of the curved soft composite material 7 can be respectively applied to The outer surface 731 and the inner surface 732 of the PU foam material 73.

In summary, the method for producing a curved soft composite material containing a PU foam material according to the present invention can attain the following effects and advantages, and thus can achieve the object of the present invention:

1. The present invention utilizes the PU foam materials 22, 73 to fill the filling spaces 5, 8, respectively, and form predetermined curved surfaces 31, 41 of the first mold 3 and the second mold 4 respectively. The outer surfaces 221, 731 and the inner surfaces 222, 732, and the PU foam materials 22, 73 respectively support the soft materials 21, 71, 72, which can produce the soft materials 21, 71, 72 respectively The role of the surfaces of the PU foam materials 22, 73.

2. The present invention, by the filling spaces 5, 8 respectively having the escape portions 51, 81 which communicate with the outside air to provide an air leakage path, enables the PU foam materials 22, 73 to completely fill the filling spaces. 5, 8.

3. In the present invention, by heating the soft materials 21, 71, 72 and the foam materials 22, 73, the soft materials 21, 71, 72 and the foam materials 22, 73 can be shaped and adhered to each other.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention, All remain within the scope of the invention patent.

2. . . Curved soft composite

twenty one. . . First soft material

twenty two. . . PU foam

221. . . The outer surface

222. . . The inner surface

twenty three. . . First surface of material

231. . . First pattern part of material

twenty four. . . Material second surface

241. . . Material second pattern

201. . . step

202. . . step

203. . . step

204. . . step

205. . . step

3. . . First mold

31. . . Predetermined surface

32. . . First mold pattern portion

4. . . Second mold

41. . . Predetermined surface

42. . . Second mold pattern portion

43. . . Material channel

5. . . Fill space

51. . . Escape department

501. . . step

502. . . step

503. . . step

504. . . step

505. . . step

506. . . step

6. . . PU foaming composition

7. . . Curved soft composite

71. . . First soft material

72. . . Second soft material

721. . . Feed hole

73. . . PU foam

731. . . The outer surface

732. . . The inner surface

74. . . First surface of material

741. . . First pattern part of material

75. . . Material second surface

751. . . Material second pattern

8. . . Fill space

81. . . Escape department

1 is a schematic flow chart of a general method for manufacturing a curved soft composite material containing a PU foam material;

2 is a flow chart showing a first preferred embodiment of the method for manufacturing a curved soft composite material containing a PU foam material according to the present invention;

Figure 3 is a schematic flow chart of the first preferred embodiment;

Figure 4 is a partially enlarged view showing a filling space of the first preferred embodiment having an escape portion connected to the outside air;

Figure 5 is a flow chart showing a second preferred embodiment of the method for producing a curved soft composite material containing a PU foam material according to the present invention; and

Figure 6 is a flow chart of the second preferred embodiment.

2. . . Curved soft composite

twenty one. . . First soft material

twenty two. . . PU foam

221. . . The outer surface

222. . . The inner surface

twenty three. . . First surface of material

231. . . First pattern part of material

twenty four. . . Material second surface

241. . . Material second pattern

201. . . step

202. . . step

203. . . step

204. . . step

3. . . First mold

31. . . Predetermined surface

32. . . First mold pattern portion

4. . . Second mold

41. . . Predetermined surface

42. . . Second mold pattern portion

43. . . Material channel

5. . . Fill space

51. . . Escape department

6. . . PU foaming composition

Claims (10)

The invention relates to a method for manufacturing a curved soft composite material comprising a PU foaming material, comprising the steps of: (a) disposing a first soft material on a predetermined curved surface of a first mold; (b) placing a second surface having a material path; Moving the mold close to the first mold, the second mold is matched with the first soft material on the first mold to define a filling space; (c) pouring a prepared PU foaming composition into the filling space (d) the PU foaming composition is foamed into a PU foaming material in the filling space; and (e) heating the first soft material and the PU foaming material to obtain a curved soft composite material. The method for manufacturing a curved soft composite material containing a PU foam according to claim 1, wherein the filling space in the step (b) has an escape portion connected to the outside air, and the escape portion Is located between a predetermined curved surface of the second mold and the first soft material. The method for manufacturing a curved soft composite material containing a PU foam according to claim 2, wherein the first mold in the step (a) further has a first recessed or protruded from the predetermined curved surface. a mold pattern portion, and the curved soft composite material in the step (e) forms a material first pattern portion having the same contour as the first mold pattern portion. The method for manufacturing a curved soft composite material containing a PU foam according to claim 3, wherein the second mold in the step (b) further has a predetermined curved surface and a depression or a protrusion. a second mold pattern portion of the curved surface, and the curved soft composite material in the step (e) forms a second pattern portion of the material having the same contour as the second mold pattern portion. The method for producing a curved soft composite material comprising a PU foam according to claim 3, wherein the heating temperature in the step (e) is between 35 ° C and 100 ° C. The method for producing a curved soft composite material containing a PU foam according to claim 5, wherein the heating time of the step (e) is between 3 minutes and 20 minutes. The invention relates to a method for manufacturing a curved soft composite material comprising a PU foaming material, comprising the steps of: (a) disposing a first soft material on a predetermined curved surface of a first mold; and (b) placing a second soft material on the first soft material; a predetermined curved surface of the second mold, and the second soft material has a feed hole, the second mold further has a material passage communicating with the feed hole; (c) moving the second mold closer to the first mold a mold, the second soft material on the second mold is matched with the first soft material on the first mold to define a filling space; (d) a prepared PU foaming composition is poured into the filling (e) the PU foaming composition is foamed into a PU foaming material in the filling space; and (f) heating the first soft material, the second soft material and the PU foaming material to obtain a Curved soft composite. The method for manufacturing a curved soft composite material containing a PU foam according to claim 7, wherein the filling space in the step (c) has an escape portion connected to the outside air, and the escape portion It is located between the second soft material and the first soft material. The method for manufacturing a curved soft composite material containing a PU foam according to claim 8, wherein the first mold in the step (a) further has a first recessed or protruded from the predetermined curved surface. a mold pattern portion, and the curved soft composite material in the step (f) forms a material first pattern portion having the same contour as the first mold pattern portion. The method for manufacturing a curved soft composite material containing a PU foam according to claim 9, wherein the second mold in the step (b) further has a second concave or convex surface a mold pattern portion, and the curved soft composite material in the step (f) forms a second pattern portion of the material having the same contour as the second mold pattern portion.