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KR20080013537A - Perforation or embossing device of sheet material - Google Patents

Perforation or embossing device of sheet material Download PDF

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Publication number
KR20080013537A
KR20080013537A KR1020060075184A KR20060075184A KR20080013537A KR 20080013537 A KR20080013537 A KR 20080013537A KR 1020060075184 A KR1020060075184 A KR 1020060075184A KR 20060075184 A KR20060075184 A KR 20060075184A KR 20080013537 A KR20080013537 A KR 20080013537A
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South Korea
Prior art keywords
sheet
embossing
forming roll
roll
film
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KR1020060075184A
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Korean (ko)
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KR100812294B1 (en
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김현경
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(주)흥원피앤엠
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Priority to KR1020060075184A priority Critical patent/KR100812294B1/en
Publication of KR20080013537A publication Critical patent/KR20080013537A/en
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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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/24—Perforating by needles or pins
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/02—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • B29C2043/461—Rollers the rollers having specific surface features

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

본 발명은 시트상 재료의 천공 또는 엠보싱 장치에 대한 것이다.The present invention relates to an apparatus for drilling or embossing sheet-like materials.

본 발명에 따르면, 필름, 부직포, 필름 또는 부직포의 합지체와 같은 시트상 재료(1)를 연속적으로 공급하는 공급부(10)와, 상기 공급부(10)의 후단의 시트상 재료(1)의 이송경로의 일측에 배치되며 외주면에 핀 또는 엠보싱 요철(24)이 형성된 성형롤(22)과, 상기 시트상 재료(1)의 이송경로의 타측에서 상기 성형롤(22)을 향하여 배치되는 가압수 또는 압축공기 기타 유체를 분사하는 노즐부(28)로 구성되며, 상기 성형롤(22)의 후단에는 천공 또는 엠보싱 성형된 시트상 재료(1)를 권취하는 귄취부(40) 또는 후속공정부가 배치된 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱 장치가 제공된다.According to the present invention, a feed part 10 for continuously supplying sheet-like material 1 such as a film, a nonwoven fabric, a film or a nonwoven fabric, and a conveyance of the sheet-like material 1 at the rear end of the supply part 10 are provided. A forming roll 22 disposed on one side of the path and having a pin or embossing unevenness 24 formed on an outer circumferential surface thereof, and pressurized water disposed toward the forming roll 22 on the other side of the conveying path of the sheet-like material 1 or And a nozzle unit 28 for injecting compressed air or other fluid, and at the rear end of the forming roll 22, a gusset unit 40 or a subsequent process unit for winding the perforated or embossed sheet-like material 1 is disposed. A perforation or embossing apparatus for sheet-like material is provided.

Description

시트상 재료의 천공 또는 엠보싱 장치 {Perforating or embossing apparatus for sheet material} Perforating or embossing apparatus for sheet material}

도 1은 본 발명의 일 실시예의 개념도1 is a conceptual diagram of one embodiment of the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1. 시트재료 10. 공급부 1. Sheet material 10. Supply part

22. 성형롤 24. 핀 또는 엠보싱 요철22. Forming roll 24. Pins or embossing irregularities

28. 노즐부 30. 건조부28. Nozzle part 30. Drying part

40. 권취부40. Winding section

본 발명은 시트상 재료의 천공 또는 엠보싱 장치에 대한 것으로서, 좀 더 상세히는 구조가 간단하면서도 제품의 품질이 우수하고 균일한 새로운 구조의 시트상 재료의 천공 또는 엠보싱 장치에 대한 것이다.The present invention relates to a perforation or embossing apparatus for sheet-like material, and more particularly to a perforation or embossing apparatus for a sheet-like material of a new structure with a simple structure, excellent product quality and uniformity.

필름 또는 시트상 재료(이하 '시트'라 칭함)를 천공 또는 엠보성가공한 제품은 다양한 용도로 사용되고 있다. 예를 들면, 부직포, 필름 또는 이들의 합지체를 엠보싱 가공하거나 천공한 제품은 일회용 기저귀, 생리대 등 일회용품으로 널리 사용되고 있다. 필름을 엠보싱하면 플라스틱 필름이 옷감과 같은 느낌을 주고 외관도 미려하게 된다. 천공한 시트제품은 생리대의 안감으로 사용된다.Products that are perforated or embossed with film or sheet-like materials (hereinafter referred to as 'sheets') are used for various purposes. For example, a product that is embossed or punched on a nonwoven fabric, a film, or a laminate thereof is widely used as a disposable product such as disposable diapers, sanitary napkins, and the like. Embossing the film gives the plastic film a cloth-like feel and a beautiful appearance. Perforated sheet products are used as lining for sanitary napkins.

기존에는 엠보싱 또는 천공을 위해 히팅롤러와 열풍을 사용하였다. 종래의 천공(퍼포레이팅)방법은 핀롤과 이에 대응하는 받침롤 사이에서 부직포나 필름 또는 합지체를 가열가압하여 구멍을 뚫거나 필름을 예열한 후에 타공망에서 필름을 진공으로 흡착하여 천공한다. 그러나, 이러한 공정들은 열을 많이 사용하므로, 제품이 열에 의해 변질 또는 변형되어 뻣뻣해지거나 생산속도가 낮다는 문제점이 있었다. 또한, 핀롤과 상대 받침롤의 돌기가 요홈이 정교하게 부합되어 대응되지 않으면 정밀하고 균일한 고품질의 천공이 곤란하여 그 만큼 성형장치의 제작이 까다롭고 코스트가 높다는 문제점이 있었다.Conventionally, heating rollers and hot air were used for embossing or drilling. Conventional perforation (perforating) method by pressing the non-woven fabric, film or laminated body by heating and pressing between the pin roll and the support roll corresponding thereto or by preheating the film and then adsorbed by vacuum in the perforated network. However, since these processes use a lot of heat, there is a problem that the product is deteriorated or deformed by heat, resulting in stiffness or low production speed. In addition, if the projections of the pin roll and the mating support roll are not precisely matched with the grooves, the precise and uniform high-quality punching is difficult, and thus the manufacturing of the molding apparatus is difficult and the cost is high.

또한, 엠보싱장치의 경우에는, 엠보싱롤과 상대 받침롤 사이에서 부직포나 필름 또는 합지체 등의 시트를 투입하여 가열가압하여 엠보싱 성형한다. 그런데 이러한 엠보싱방법은 엠보싱롤이나 받침롤의 열편차 또는 경도편차로 인해 좌우 엠보싱 편차가 많이 발생하고, 엠보싱 모양도 뷸균일해 지게 된다. 또한, 가열가압시에 기계장치에 무리가 가해져서 장치의 수명이 단축되는 문제점도 있었다. 아울러, 암수의 엠보싱 롤러의 요철부가 서로 정확하게 맞물리도록 정밀하게 제작하거나 설치해야 하므로, 상대적으로 제작이 까다롭고 공정이 복잡한 문제점이 있다.In the case of the embossing apparatus, a sheet such as a nonwoven fabric, a film, a laminated body, or the like is introduced between the embossing roll and the mating support roll to be embossed by heating and pressing. However, the embossing method causes a lot of left and right embossing variations due to thermal or hardness deviations of the embossing roll or the supporting roll, and the embossing shape becomes uneven. In addition, there is also a problem that the life of the device is shortened due to the excessive force applied to the mechanical device during heating and pressing. In addition, since the uneven parts of the male and female embossing rollers must be precisely manufactured or installed to be precisely engaged with each other, there is a problem that the production is relatively difficult and the process is complicated.

본 발명은 전술한 바와 같은 시트상 재료의 천공 또는 엠보싱 가공상의 문제점에 착안하여 제안된 것으로서, 본 발명은 서로 대응되는 암수의 엠보싱롤 또는 천공롤을 정교하게 제작하지 않더라도 간단한 구조로서 제품의 품질이 균일하고 우수한 새로운 구조의 시트상 재료의 천공 또는 엠보싱 장치를 제공하고자 하는 것이다.The present invention has been proposed in view of the above-mentioned problems in the punching or embossing of sheet-like materials, and the present invention provides a simple structure even if the quality of the product is simple even without precisely manufacturing the corresponding male and female embossing rolls or punching rolls. It is an object of the present invention to provide a perforation or embossing apparatus for sheet-like materials of uniform and superior new structure.

본 발명의 한 특징에 따르면, 필름, 부직포, 필름 또는 부직포의 합지체와 같은 시트상 재료(1)를 연속적으로 공급하는 공급부(10)와, 상기 공급부(10)의 후단의 시트상 재료(1)의 이송경로의 일측에 배치되며 외주면에 핀 또는 엠보싱 요철(24)이 형성된 성형롤(22)과, 상기 시트상 재료(1)의 이송경로의 타측에서 상기 성형롤(22)을 향하여 배치되는 가압수 또는 압축공기 기타 유체를 분사하는 노즐부(28)로 구성되며, 상기 성형롤(22)의 후단에는 천공 또는 엠보싱 성형된 시트상 재료(1)를 권취하는 귄취부(40) 또는 후속공정부가 배치된 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱장치가 제공된다.According to one feature of the present invention, a supply portion 10 for continuously supplying a sheet-like material 1 such as a film, a nonwoven fabric, a film or a nonwoven fabric, and a sheet-like material 1 at the rear end of the supply portion 10 are provided. And a forming roll 22 having a pin or embossing unevenness 24 formed on an outer circumferential surface thereof, and disposed toward the forming roll 22 from the other side of the conveying path of the sheet-like material 1). And a nozzle portion 28 for injecting pressurized water or compressed air or other fluid, and a backing portion 40 for winding or embossing the sheet-like material 1 wound on the rear end of the forming roll 22 or a subsequent process. A perforation or embossing apparatus for sheet-like material is provided, which is further arranged.

본 발명의 다른 특징에 따르면, 상기 노즐부(28)는 가압수를 분사하는 노즐이고, 상기 노즐부(28)의 후단에는 건조부(30)가 더 구비된 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱장치가 제공된다.According to another feature of the invention, the nozzle portion 28 is a nozzle for injecting pressurized water, the perforated sheet-like material, characterized in that the drying portion 30 is further provided at the rear end of the nozzle portion 28 Or an embossing device is provided.

또한, 상기 성형롤(22) 또는 가압된 유체는 가열된 롤 또는 가열된 가압유체인 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱장치가 제공된다.Further, the forming roll 22 or the pressurized fluid is provided with a perforation or embossing apparatus for sheet-like material, characterized in that it is a heated roll or a heated pressurized fluid.

이하에서 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다. 도 1은 본 발명의 일 실시예의 개념도로서, 도시된 바와 같이, 필름, 부직포 또는 이들의 합지체인 시트상 재료(1)가 롤상으로 감겨서 공급되는 공급부(10)가 배치되고, 이 공급부(10)의 후단에는 외주면에 핀 또는 엠보싱 요철(24)이 형성된 성형롤(22)과 이 성형롤(22)에 대향 배치된 노즐부(28)가 구성된다. 상기 공급부(10)에서 공급된 시트상 재료(1)는 성형롤(22)과 노즐부(28) 사이를 통과하면서 노즐부(28)에서 분사되는 가압수, 압축공기 또는 기타 가압유체에 의해 성형롤(22)에 가압 밀착되면서 핀에 의해 시트상 재료(1)가 천공되거나 엠보싱 요철(24)에 밀 착되어 엠보싱성형이 이루어진다.Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention. 1 is a conceptual diagram of an embodiment of the present invention, as shown in the drawing, a supply unit 10 is provided in which a sheet-like material 1, which is a film, a nonwoven fabric or a lamination thereof, is wound and supplied in a roll, and the supply unit 10 is provided. At the rear end of the), a forming roll 22 having a pin or embossed unevenness 24 formed on its outer circumferential surface and a nozzle portion 28 disposed opposite to the forming roll 22 are constituted. The sheet-like material 1 supplied from the supply part 10 is formed by pressurized water, compressed air or other pressurized fluid which is injected from the nozzle part 28 while passing between the forming roll 22 and the nozzle part 28. The sheet-like material 1 is punched by the pin while being in close contact with the roll 22 or in close contact with the embossed concave-convex 24 to form the embossing.

바람직하게는 상기 노즐부(28)는 가압수를 분사하는 워터노즐을 사용하는 것이 시트재료(1)를 좀더 강력하고 확실한 압력으로 가압하여 정밀한 핀홀 또는 엠보싱 요철을 성형할 수 있다. 워터노즐을 사용하는 경우에는 그 후단에 건조부(30)를 배치하여, 물이 묻은 시트상 재료(1) 로부터 물기를 제거하거나 건조시킨다. 이와 같이 성형 및 건조가 완료된 시트상 재료(1)는 권취롤(40)에 의해 감겨서 회수되거나, 직접 다른 후속공정으로 투입되거 재차 처리될 수 있다. 도면 중 미설명 부호 12는 안내롤 또는 텐션롤이다.Preferably, the nozzle unit 28 may use a water nozzle for spraying pressurized water to press the sheet material 1 to a more powerful and sure pressure to form precise pinholes or embossed concavities and convexities. When using a water nozzle, the drying part 30 is arrange | positioned at the back end, and water is removed from the sheet-like material 1 with water, and it dries. The sheet-like material 1 thus completed and dried may be wound and recovered by the winding roll 40, or may be directly introduced into another subsequent process or processed again. Reference numeral 12 in the drawings is a guide roll or a tension roll.

또한, 바람직하게는 상기 성형롤(22)은 가열된 히팅롤이고, 상기 가압수 또는 가압유체는 가열된 것을 사용함으로써 엠보싱의 형성 또는 천공효율이 증대된다.In addition, preferably, the forming roll 22 is a heated heating roll, and the pressurized water or pressurized fluid is heated to increase the formation or drilling efficiency of the embossing.

이상에서 설명한 본 발명에 따르면, 시트상 재료(1)의 천공 또는 엠보싱 가공을 위해, 핀 또는 엠보싱요철이 형성된 성형롤(22)과 가압수 또는 압축공기 등을 분사하는 노즐부(28) 사이로 시트상 재료(1)를 통과시키면서 가압수 등에 의해 시트 재료를 성형롤(22)에 가압밀착시키면서 천공 또는 엠보싱 성형할 수 있기 때문에, 종래의 천공장치 또는 엠보싱 장치에 비해, 구조가 간단하면서도, 정교한 핀홀가공 또는 엠보싱 성형이 가능하고, 히터나 열풍을 사용하지 않으므로, 장치도 간단하면서도 재료가 열에 의해 변형 또는 변질되지 않기 때무에 성형 품질이 우수하 게 된다. 또한, 상기 성형롤(22)을 히팅롤로 사용하고, 가열된 가압수 또는 가압유체를 사용함으로써, 엠보싱 성형효율이나 천공효율이 증대된다.According to the present invention described above, the sheet between the forming roll 22 and the nozzle portion 28 for spraying pressurized water or compressed air and the like to form a pin or embossed unevenness for drilling or embossing the sheet-like material 1 Since the sheet material can be punched or embossed by pressurized water or the like while being pressed through the upper material 1 while being pressed against the forming roll 22, the pinhole is simpler than the conventional punching machine or embossing device, and the pinhole is sophisticated. It can be processed or embossed and does not use a heater or hot air, so the device is simple and the molding quality is excellent because the material is not deformed or altered by heat. Further, by using the forming roll 22 as a heating roll and using heated pressurized water or pressurized fluid, the embossing molding efficiency and the drilling efficiency are increased.

Claims (3)

필름, 부직포, 필름 또는 부직포의 합지체와 같은 시트상 재료(1)를 연속적으로 공급하는 공급부(10)와, 상기 공급부(10)의 후단의 시트상 재료(1)의 이송경로의 일측에 배치되며 외주면에 핀 또는 엠보싱 요철(24)이 형성된 성형롤(22)과, 상기 시트상 재료(1)의 이송경로의 타측에서 상기 성형롤(22)을 향하여 배치되는 가압수 또는 압축공기 기타 유체를 분사하는 노즐부(28)로 구성되며, 상기 성형롤(22)의 후단에는 천공 또는 엠보싱 성형된 시트상 재료(1)를 권취하는 귄취롤(40) 또는 후속공정부가 배치된 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱 장치.Arranged on one side of the feed part 10 which supplies continuously the sheet-like material 1, such as a film of a film, a nonwoven fabric, a film, or a nonwoven fabric, and the conveyance path | route of the sheet-like material 1 of the rear end of the said supply part 10. And a forming roll 22 having a pin or embossing unevenness 24 formed on an outer circumferential surface thereof, and pressurized water or compressed air or other fluid disposed toward the forming roll 22 on the other side of the conveying path of the sheet-like material 1. It is composed of a nozzle portion 28 for spraying, the rear end of the forming roll 22, characterized in that the sheeting roll 40 or a subsequent process unit for winding the sheet-like material (1) perforated or embossed is disposed Perforation or embossing device of the phase material. 제 1 항에 있어서, 상기 노즐부(28)는 가압수를 분사하는 노즐이고, 상기 노즐부(28)의 후단에는 건조부(30)가 더 구비된 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱 장치.The method of claim 1, wherein the nozzle portion 28 is a nozzle for injecting pressurized water, perforated or embossed sheet-like material, characterized in that the drying portion 30 is further provided at the rear end of the nozzle portion 28 Device. 제 1 항 또는 제 2 항에 있어서, 상기 성형롤(22) 또는 가압된 유체는 가열된 롤 또는 가열된 가압유체인 것을 특징으로 하는 시트상 재료의 천공 또는 엠보싱장치.The perforation or embossing apparatus for sheet material according to claim 1 or 2, wherein the forming roll (22) or pressurized fluid is a heated roll or a heated pressurized fluid.
KR1020060075184A 2006-08-09 2006-08-09 Perforation or embossing device of sheet material Expired - Fee Related KR100812294B1 (en)

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KR101221830B1 (en) * 2011-12-21 2013-01-15 한국기계연구원 Apparatus for manufacturing sheet member having line type micro pattern
KR102226285B1 (en) * 2020-06-09 2021-03-09 주식회사 피앤씨랩스 Cellulose nonwoven fabric mercerization apparatus comprising mounting rollers having dot patterned surface structure and mercerization method using the same
KR20220013210A (en) * 2020-07-24 2022-02-04 이현종 Non-woven fabric manufacturing method through pressing and drying

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JPS5326856A (en) 1976-08-25 1978-03-13 Toowa Yuugen Method of continuously producing synthetic resin sheet formed with pattern on both sides
KR890017070A (en) * 1988-05-12 1989-12-15 정규일 Synthetic resin tube molded in embossing and its manufacturing apparatus
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Publication number Priority date Publication date Assignee Title
KR101221830B1 (en) * 2011-12-21 2013-01-15 한국기계연구원 Apparatus for manufacturing sheet member having line type micro pattern
KR102226285B1 (en) * 2020-06-09 2021-03-09 주식회사 피앤씨랩스 Cellulose nonwoven fabric mercerization apparatus comprising mounting rollers having dot patterned surface structure and mercerization method using the same
KR20220013210A (en) * 2020-07-24 2022-02-04 이현종 Non-woven fabric manufacturing method through pressing and drying

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