GB1552491A - Foam sheet perforating method - Google Patents
Foam sheet perforating methodInfo
- Publication number
- GB1552491A GB1552491A GB32186/76A GB3218676A GB1552491A GB 1552491 A GB1552491 A GB 1552491A GB 32186/76 A GB32186/76 A GB 32186/76A GB 3218676 A GB3218676 A GB 3218676A GB 1552491 A GB1552491 A GB 1552491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pins
- foam sheet
- perforating method
- sheet perforating
- foamed material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000006260 foam Substances 0.000 title 1
Classifications
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/047—Perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/04—Treatment by energy or chemical effects using liquids, gas or steam
- B32B2310/0445—Treatment by energy or chemical effects using liquids, gas or steam using gas or flames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Laminated Bodies (AREA)
Abstract
The webs of foamed material (6) are guided for perforation through pairs of rollers (4, 5) past a rotating roller (1) which has radially projecting pins. Said pins are heated by direct flames from a gas burner (3). Any residues of the foamed material sticking to the pins are thus burnt so that the pins are continuously cleaned. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2534376A DE2534376C3 (en) | 1975-08-01 | 1975-08-01 | Device for continuous perforation of flexible webs made of thermoplastics |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1552491A true GB1552491A (en) | 1979-09-12 |
Family
ID=5952980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32186/76A Expired GB1552491A (en) | 1975-08-01 | 1976-08-02 | Foam sheet perforating method |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH609606A5 (en) |
DE (1) | DE2534376C3 (en) |
FR (1) | FR2319472A1 (en) |
GB (1) | GB1552491A (en) |
IT (1) | IT1066209B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5262107A (en) * | 1991-06-25 | 1993-11-16 | Applied Extrusion Technologies, Inc. | Method of making apertured film fabrics |
EP0939777A1 (en) * | 1996-11-15 | 1999-09-08 | Sentinel Products Corp. | Open cell foamed articles including silane-grafted polyolefin resins |
EP3378450A1 (en) | 2017-03-22 | 2018-09-26 | Mölnlycke Health Care AB | Method for manufacturing a wound dressing and a wound dressing |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4610042A (en) * | 1984-12-19 | 1986-09-09 | Kurt Salmon Associates, Inc. | Method and apparatus for making disposable shoe covers |
BR9509635A (en) * | 1994-11-08 | 1998-01-06 | Minnesota Mining & Mfg | Process for forming perforations in a thin sheet of material and respective thin sheet of material |
US5879494A (en) * | 1996-09-23 | 1999-03-09 | Minnesota Mining And Manufacturing Company | Method of aperturing thin sheet materials |
DE10223388B4 (en) * | 2002-05-25 | 2005-09-08 | Afs Entwicklungs + Vertriebs Gmbh | Device for perforating a web-like material |
-
1975
- 1975-08-01 DE DE2534376A patent/DE2534376C3/en not_active Expired
-
1976
- 1976-07-26 CH CH954076A patent/CH609606A5/en not_active IP Right Cessation
- 1976-07-28 FR FR7623019A patent/FR2319472A1/en active Granted
- 1976-07-30 IT IT50715/76A patent/IT1066209B/en active
- 1976-08-02 GB GB32186/76A patent/GB1552491A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5262107A (en) * | 1991-06-25 | 1993-11-16 | Applied Extrusion Technologies, Inc. | Method of making apertured film fabrics |
EP0939777A1 (en) * | 1996-11-15 | 1999-09-08 | Sentinel Products Corp. | Open cell foamed articles including silane-grafted polyolefin resins |
EP0939777A4 (en) * | 1996-11-15 | 1999-11-24 | Sentinel Products Corp | Open cell foamed articles including silane-grafted polyolefin resins |
EP3378450A1 (en) | 2017-03-22 | 2018-09-26 | Mölnlycke Health Care AB | Method for manufacturing a wound dressing and a wound dressing |
WO2018172414A1 (en) | 2017-03-22 | 2018-09-27 | Mölnlycke Health Care Ab | Method for manufacturing a wound dressing and a wound dressing |
US11559441B2 (en) | 2017-03-22 | 2023-01-24 | Mölnlycke Health Care Ab | Method for manufacturing a wound dressing and a wound dressing |
Also Published As
Publication number | Publication date |
---|---|
DE2534376C3 (en) | 1979-10-25 |
IT1066209B (en) | 1985-03-04 |
CH609606A5 (en) | 1979-03-15 |
FR2319472A1 (en) | 1977-02-25 |
DE2534376B2 (en) | 1979-02-15 |
FR2319472B1 (en) | 1980-08-29 |
DE2534376A1 (en) | 1977-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |