KR20010091732A - Promulgation manufactured goods making mothod - Google Patents
Promulgation manufactured goods making mothod Download PDFInfo
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- KR20010091732A KR20010091732A KR1020000013719A KR20000013719A KR20010091732A KR 20010091732 A KR20010091732 A KR 20010091732A KR 1020000013719 A KR1020000013719 A KR 1020000013719A KR 20000013719 A KR20000013719 A KR 20000013719A KR 20010091732 A KR20010091732 A KR 20010091732A
- Authority
- KR
- South Korea
- Prior art keywords
- vent holes
- foaming
- solid sheet
- foam
- foamed
- Prior art date
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- 239000006260 foam Substances 0.000 claims abstract description 38
- 238000005187 foaming Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000004080 punching Methods 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims description 32
- 238000009423 ventilation Methods 0.000 claims description 23
- 239000000155 melt Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007500 overflow downdraw method Methods 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 14
- 230000001070 adhesive effect Effects 0.000 abstract description 14
- 230000002950 deficient Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000007652 sheet-forming process Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0045—Perforating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
본 발명은 통풍공을 갖는 발포제품 제작방법에 관한 것으로, 더욱 상세하게는 통기성을 부여하기 위해 통풍공이 표면으로 형성되는 발포제품을 제조함에 있어, 발포원단의 압출공정에서 통풍공의 천공작업을 병행하므로서, 발포공정을 통해 발포처리되는 발포원단의 표면으로 규격화된 통풍공이 형성되도록함과 동시에, 부착재료와의 용융접착시 그 접착력또한 증대되도록 한 발포제품 제작방법에 관한 것이다.The present invention relates to a method for manufacturing a foamed product having a vent hole, and more particularly, in the manufacture of a foamed product in which the vent hole is formed on the surface in order to impart breathability, while performing the perforation operation of the vent hole in the extrusion process of the foam fabric, The present invention relates to a method for manufacturing a foamed product in which a standardized vent hole is formed on a surface of a foamed fabric that is foamed through a foaming process, and at the same time, the adhesion thereof is increased when melt bonding with an adhesive material.
통상적인 가교, 무가교 폴리에틸렌 발포체(IXRE,XPE)는 각종 시트류, 플라스틱 용기류의 전반에 걸쳐 범용되고 있으며, 근래의 시트류와 신발의 겉피 또는 깔창 등에 사용되는 발포체는 통풍성을 부여하여 용이한 통풍이 이루어지도록 통풍공을 천공하고 있다.Conventional crosslinked and non-crosslinked polyethylene foams (IXRE, XPE) are widely used throughout various sheets and plastic containers, and foams used in recent sheets and outer skins or insoles of shoes are easily ventilated. Perforations are made to make this happen.
이에, 상기와 같이 통풍성을 요하는 제품에 사용되는 종래 발포체의 제조방법은 도 1에서와 같이 압출기(100)를 통해 배합원료를 압출하여 원단(solid sheet)을 제작한 후, 발포기(200)를 통해 원단을 발포시켜 프레스펀칭기(300)에 의해 통풍공(310)을 천공하고, 이렇게 통풍공(310)이 천공된 발포체를 재단하여 쿠션재 등의 부착재료와 융착방식으로 접착하여 제품화하므로서 이루어지는 것이었다.Thus, the conventional method for producing a foam used in a product requiring ventilation as described above is to extrude the blending raw material through an extruder 100 as shown in Figure 1 to produce a fabric (solid sheet), foaming machine 200 The fabric was foamed through the punch punching machine 300 to punch the vent hole 310, and thus the vent hole 310 was cut to form a perforated foam and adhered to an adhesive material such as a cushioning material in a fusion method to produce a product.
이때, 상기 통풍공(310)을 천공하는 발포공정에서는 발포기(200)의 출구를 통과한 후 계속적으로 이송되는 발포체로 프레스펀칭기(300)에 의한 천공작업의 어려움을 감안하여 도 1에 도시된 바와같이 발포체를 지연시키고자 길게 늘어뜨리는 형태로 이송하는 것이었다.At this time, in the foaming process for puncturing the ventilation hole 310 as shown in Figure 1 in consideration of the difficulty of the punching operation by the press punching machine 300 to the foam that is continuously conveyed after passing through the outlet of the foaming machine 200 Likewise, it was conveyed in the form of long sagging to delay the foam.
하지만, 상기와 같은 종래 발포제품의 제작공정에 있어, 원단을 발포와 함께 이루어지는 천공작업은 발포기를 통해 발포되어 탄성력이 부여된 발포체를 이동간에 프레스펀칭기(300)로 천공함에 따라 통풍공(310)의 형상이 일정치못한 문제점을 갖는 것이었으며, 더욱이 상당한 두께를 갖는 발포체는 통풍공형성작업에 상당한 어려움을 갖는 것이었다.However, in the manufacturing process of the conventional foam products as described above, the punching operation made with the foaming of the fabric is foamed through the foaming machine to puncture the foam imparted with the press punching machine 300 between the movement of the ventilation hole 310 The shape had a problem of being inconsistent, and the foam having a considerable thickness had a considerable difficulty in the venting operation.
또한, 상기와 같은 통풍공(310)형성의 어려움은 생산공정이 추가로 제품생산효율이 하락됨과 동시에 불량율이 증가요인으로 작용하는 것이며, 불규칙한 통풍공을 갖는 제품은 그 외관자체가 조잡해보여 그만큼 제품성이 저하되는 문제점을 야기케하는 것이었다.In addition, the difficulty in forming the ventilation hole 310 as described above is that the production process is further reduced product production efficiency and at the same time act as an increase factor of the defective rate, the product having an irregular ventilation hole is rough appearance of its product itself It was to cause this deterioration problem.
따라서, 본 발명은 전술한 종래 발포제품 제작방법이 갖는 제반적인 문제점을 해결하고자 창안된 것으로,Therefore, the present invention was devised to solve the general problems of the above-mentioned conventional foamed product manufacturing method,
본 발명의 목적은 발포원단의 압출공정에서 통풍공의 천공작업을 병행하므로서, 발포공정을 통해 발포처리되는 발포원단의 표면으로 규격화된 통풍공이 형성되도록함과 동시에, 공정의 간소화와 불량률을 최소화하며, 쿠션재와의 용융접착시 접착력또한 증대되도록 한 통풍공을 갖는 발포제품 제작방법을 제공함에 있다.It is an object of the present invention to simultaneously form a perforated hole in the extrusion process of the foam fabric, and to form a standardized ventilation hole on the surface of the foam fabric to be foamed through the foaming process, and at the same time minimize the simplification and failure rate of the process, The present invention provides a method for producing a foamed product having a vent hole so that the adhesive strength during melt bonding with the cushioning material is also increased.
상기한 목적을 달성하기 위한 본 발명의 구체적인 수단으로는;As a specific means of the present invention for achieving the above object;
압출기를 통해 원료를 압출하여 원단(solid sheet)을 제작한 후 프레스펀칭기에 의해 다수개의 통풍공을 천공하는 원단형성공정과,A fabric forming process of drilling a plurality of vent holes by a press punching machine after producing a solid sheet by extruding the raw material through an extruder;
발포기를 통해 발포원단을 발포하는 발포공정과, 발포체를 재단하여 쿠션재 등의 부착재료와 열융착방식으로 접착하여 제품화하는 용융접착공정으로 이루어지는 발포제품 제작방법을 구비하므로서 달성된다.It is achieved by having a foaming step of foaming the foam fabric through the foaming machine, and a foamed product manufacturing method consisting of a melt-bonding step of cutting the foam to adhere to the adhesive material such as cushioning material in a thermal fusion method.
도 1은 종래 발포제품의 제작과정 구성도.1 is a block diagram of the manufacturing process of the conventional foam products.
도 2는 본 발명에 따른 발포제품 제작방법의 일실시예 구성도.Figure 2 is an embodiment configuration of a foamed product manufacturing method according to the present invention.
도 3은 본 발명에 따른 통풍공을 갖는 발포제품 제작방법의 이실시예 구성도.Figure 3 is a configuration of this embodiment of a foamed product manufacturing method having a ventilation hole according to the present invention.
<도면주요부위에 대한 부호의 설명><Explanation of symbols for major parts of drawing>
S1 : 발포원단형성공정 S2 : 발포공정 S3 : 용융접착공정S1: Foam Fabrication Process S2: Foaming Process S3: Melt Bonding Process
1 : 압출기 2 : 프레스펀칭기 2' : 로울러펀칭기1 Extruder 2 Press Punching Machine 2 'Roller Punching Machine
3 : 발포기 4 : 부착재료 11,31 : 발포원단3: foaming machine 4: attachment material 11, 31: foaming fabric
111,111' : 통풍공 31 : 발포제품111,111 ': Ventilation 31: Foamed product
이하, 본 발명의 바람직한 실시예를 첨부도면에 의거 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명에 따른 발포제품 제작방법의 일실시예구성도이다.Figure 2 is an embodiment configuration of a foamed product manufacturing method according to the present invention.
<일실시예><Example 1>
이는 도 2에 도시된 바와같이 원단형성공정(S1)과, 발포공정(S2)과, 용융접착공정(S3)으로 이루어지며, 상기 원단형성공정(S1)에서 통풍공(111)의 천공작업이 병행됨을 특징으로 한다.This is made of a fabric forming step (S1), foaming step (S2), and melt bonding step (S3), as shown in Figure 2, the drilling operation of the vent hole 111 in parallel in the fabric forming step (S1) It is characterized by.
본 발명의 일실시예로 적용되는 발포체는 가교,무가교 폴리에틸렌 발포체(IXPE,XPE)로서, 도 2에서와 같이 발포체원료를 압출기(1)에 투입하여 판상체로 압출성형한 후, 프레스펀칭기(2)에 의해 통풍공(111)을 천공하는 발포원단형성공정을 통해 통풍공(111)이 형성된 발포원단(11)을 얻게 되는데,Foam applied in one embodiment of the present invention is a crosslinked, cross-linked polyethylene foam (IXPE, XPE), as shown in Figure 2, after the extrusion of the foam raw material into the extruder (1), the press punching machine ( 2) to obtain a foaming fabric 11 formed with a ventilation hole 111 through the foaming fabrication process for drilling the ventilation hole 111 by,
이와같은 원단형성공정(S1)에 있어, 통풍공(111)의 천공작업은 원단(11) 자체가 일정경도를 갖는 판형태로서 0.5-5mm의 얇은 두께를 갖는 것임에 따라 압출성형후 연속된 작업으로 통풍공(111)의 천공작업을 행하므로서 규격화된 통풍공(111)을 다수개로서 형성하게 되며, 바람직하게는 압출성형된 원단(11)을 그대로 권취한후, 별도의 작업으로서 프레스펀칭기(2)에 의한 천공작업을 행한 후 다시 권취보관한다.In the fabric forming process (S1) as described above, the drilling operation of the ventilation hole 111 is a continuous form after extrusion molding as the fabric 11 itself has a thin thickness of 0.5-5mm as a plate shape having a certain hardness. The punching operation of the vent hole 111 is formed to form a plurality of standardized vent holes 111. Preferably, the extruded fabric 11 is wound as it is, and then the press punching machine 2 as a separate operation. After perforation work, rewind and store again.
이때, 상기 프레스펀칭기(2)에 의해 형성되는 통풍공(111)은 도 2에 확대도시된 바와같이 원형을 취하도록 하되, 이러한 원형 통풍공(111)의 배열각도가 압출방향에 반대되는 수직방향으로 배열형성된다.At this time, the vent hole 111 formed by the press punching machine 2 is to take a circular shape as shown in Figure 2 enlarged, the array angle of the circular vent hole 111 is arranged in a vertical direction opposite to the extrusion direction Is formed.
이후에 행하게 되는 원단(11)의 발포공정(S2)은 도 2에서와 같이 원단(31)을 발포기(3)로 투입하되, 이때 원단(31)의 발포율을 고려하여 적정온도로서 원단(11)을 발포하게 되며, 발포된 발포체는 권취보관하거나 연속적으로 다음공정인 용융접착공정(S3)으로 보내지게 된다.The foaming step (S2) of the fabric 11 to be carried out after the input the fabric 31 to the foaming machine 3, as shown in Figure 2, at this time considering the foaming rate of the fabric 31 as the appropriate temperature ( 11) will be foamed, the foam is sent to the melt storage step (S3) of winding storage or continuously the next step.
이와같은 발포공정(S2)을 통해 발포원단(11)을 발포시키게 되면 발포원단(11)에 이미 형성된 통풍공(111)은 다수개가 일정비율로 커진 직경의 정원으로 구성되는데,When the foaming fabric 11 is foamed through the foaming process (S2), the ventilation holes 111 already formed in the foaming fabric 11 are composed of a plurality of gardens having a diameter larger in a certain ratio.
이는 원단(11)상에 원형으로 형성된 통풍공(111)이 발포공정(S2)의 발포기(3)를 투입된 후 작용하게 되는 인장력, 즉 강제로 발포원단(31)을 투입한 후, 발포된 원단을 뽑아냄에 따라 발포원단(31)의 진행방향으로 작용하게 되는 인장력에 의해 정원 통풍공(111')으로 형태변경을 조정하는 것이며, 이와같은 인장력을 정확한 수치로 계산하여 전술한 통풍공(111)의 최초 천공시 통풍공(111)이 갖는 타원율을 조절할 수도 있다.This is because the ventilation hole 111 formed in a circular shape on the fabric 11 is applied to the tensile force acting after the foaming machine 3 of the foaming process (S2), that is, the foaming fabric 31 is forcibly injected, and then the foamed fabric It is to adjust the shape change to the garden vent hole (111 ') by the tensile force acting in the advancing direction of the foaming fabric (31) according to the extraction, by calculating the tensile force to the exact value of the aforementioned vent hole (111) It is also possible to adjust the ellipticity of the vent hole 111 at the time of the first puncture.
한편, 용융접착공정(S3)은 발포체와 쿠션재와 같은 부착재료(4)를 용융접착하는 공정인데, 일례로서 발포체를 신발의 깔창에 적용할 경우, 발포체를 신발깔창형태로 재단성형한 후, 재단된 발포체와 치합되는 부착재료(4)를 발포체의 부착면에 열융착시키므로서 제품화하게 된다.On the other hand, the melt bonding step (S3) is a process of melt bonding the adhesion material (4), such as foam and cushioning material, for example, when the foam is applied to the insole of the shoe, after cutting the foam in the form of a shoe insole, The adhesive material 4 to be engaged with the foam is made into a product by heat-sealing the adhesion surface of the foam.
이와같이 발포체와 부착재료(4)를 열융착결합할 경우, 발포체 전역으로 일정형성된 통풍공(111')을 통해 발포체의 부착면과 부착재료의 부착면상이로 발생되는 기포가 외부방출되므로 그 접착력이 증대되는 효과를 얻을 수 있는 것이다.As such, when the foam and the adhesive material 4 are heat-sealed, the adhesive force is increased because bubbles generated between the adhesive surface of the foam and the adhesive surface of the adhesive material are discharged through the ventilation holes 111 'formed throughout the foam. You will get the effect.
따라서, 상기와 같은 본 발명의 발포제품 제작방법은 통풍공을 갖는 각종 발포제품을 제작함에 있어, 원단(11)의 제작과 함께 통풍공(111)을 형성시키므로서 발포공정(S2)을 통해 규격화 된 통풍공(111')을 구성하게 되며, 특히 발포공정(S2)에서 변형되는 통풍공(111)의 변형율을 고려하여 진원의 통풍공(111')을 얻을 수 있어, 보다 고급화 된 제품을 얻을 수 있는 것이다.Therefore, the foamed product manufacturing method of the present invention as described above in the manufacture of various foamed products having a ventilation hole, the ventilation hole standardized through the foaming process (S2) by forming the ventilation hole 111 with the fabrication of the fabric (11) (111 '), and in particular, considering the strain rate of the vent hole 111 is deformed in the foaming step (S2) can be obtained a circular vent hole (111'), it is possible to obtain a more advanced product.
<이실시예><Example>
도 3은 본 발명에 따른 통풍공을 갖는 발포제품 제작방법의 이실시예 구성도이다.Figure 3 is a configuration of this embodiment of a foamed product manufacturing method having a ventilation hole according to the present invention.
이는 가교폴리에틸렌 발포체에 있어, 발포율이 우수한 제품 원단에 적용되는 것으로, 도시된 바와같이 압출기(1)를 통해 압출성형되는 원단(11)으로 통풍공(111)을 형성함에 있어, 로울러펀칭기(2')를 적용하여 압출작업과 천공작업이 연속적으로 이루어지도록 한 것이며, 이후 원단(11)은 권취하지 않고 발포기(3)를 통과시켜 발포체로 성형한 후 용융접착공정(S3)을 통해 제품화하게 된다.This is applied to a product fabric having excellent foaming ratio in crosslinked polyethylene foam, and as shown in forming the vent hole 111 as the fabric 11 extruded through the extruder 1, the roller punching machine (2 '). Extrusion and perforation work is to be carried out continuously by applying the), and then the fabric 11 is formed into a foam by passing the foaming machine 3 without winding and then commercialized through a melt bonding process (S3). .
이와같은 이실시예는 통풍공(111)의 천공작업을 회전하는 로울러펀칭기(2')에 의해 행함에 따라 보다 연속적인 작업을 행할 수 있는 장점을 갖는 것이다.This embodiment as described above has the advantage that the continuous operation can be performed by the roller punching machine (2 ') to rotate the drilling operation of the ventilation hole (111).
이상과 같이, 본 발명에 따른 통풍공을 갖는 발포제품의 제작방법은 발포원단의 압출작업후 통풍공의 천공작업을 행하므로서, 규격화된 통풍공을 얻을 수 있어, 제품의 고급화를 달성할 수 있으며, 공정의 간소화와 불량율을 최소화할 수 있어 생산성향상효과를 기대할 수 있는 것이다. 더욱이 제품화하기위한 부착재료(쿠션재 등)와의 용융접착시 접착력또한 증대할 수 있는 부수적인 효과를 갖는 것이다.As described above, the manufacturing method of the foamed product having the ventilation hole according to the present invention can be obtained by standardizing the ventilation hole by performing the punching of the ventilation hole after the extrusion operation of the foam fabric, it is possible to achieve the high-quality product of the process, Simplification and minimizing the defective rate can be expected to improve productivity. Furthermore, it has a side effect that can also increase the adhesive strength during melt bonding with the adhesive material (cushion material, etc.) for commercialization.
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|---|---|---|---|
| KR1020000013719A KR100567569B1 (en) | 2000-03-17 | 2000-03-17 | Promulgation manufactured goods making mothod |
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| KR1020000013719A KR100567569B1 (en) | 2000-03-17 | 2000-03-17 | Promulgation manufactured goods making mothod |
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| KR100567569B1 KR100567569B1 (en) | 2006-04-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100920643B1 (en) * | 2009-03-10 | 2009-10-07 | 김성순 | Method of ventilating foamed product and ventilating foamed product |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100987190B1 (en) | 2009-03-11 | 2010-10-12 | 김성순 | Method of ventilating foamed product and ventilating foamed product |
| KR102393851B1 (en) * | 2021-08-11 | 2022-05-04 | 주식회사 청우산업 | Anti-condensation Insulation System and Manufacturing Method for Multi-family Housing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100920643B1 (en) * | 2009-03-10 | 2009-10-07 | 김성순 | Method of ventilating foamed product and ventilating foamed product |
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