Filtration Article With Fluoropolymer Knit

Disclosed is a filtration article comprising a first layer comprising porous PTFE for fluid filtration (e.g., a PTFE membrane), and a second layer comprising strands of fluoropolymer fibers arranged to form a stable knit. The knit layer comprises interlocking regions that are each defined by corresponding sets of at least two interlocking loop portions of the fluoropolymer fiber strands. In filtration article embodiments, the fluoropolymer fiber strands may be twisted and/or have a rounded outer configuration. The knit layer provides improved dimensional stability as a support layer for the filtration layer and/or as a drainage layer. 1. A filtration article for filtration of particles from a fluid stream , comprising:a first layer, positionable across a fluid stream, comprising a porous PTFE membrane for filtering particles from the fluid stream; anda second layer, positionable across said fluid stream to provide for at least one of drainage of and support of said first layer, comprising a plurality of strands of fluoropolymer fibers arranged to form a knit having a plurality of interlocking regions that are each defined by corresponding different sets of at least two interlocking loop portions of said plurality of strands of fluoropolymer fibers, wherein said plurality of interlocking regions of the knit define a plurality of wales and a plurality of courses, and wherein for at least a first portion of said plurality of strands each strand comprises different loop portions that partially define different, alternating ones of said plurality of interlocking regions located along at least two different ones of said plurality of wales.2. The filtration article of claim 1 , wherein each of said plurality of interlocking regions is defined by corresponding different sets of at least three interlocking loop portions of said plurality of strands of fluoropolymer fibers.3. The filtration article of claim 2 , wherein for each of said plurality of interlocking regions the ...

PRINTABLE FILM

An extruded multilayer film includes a top layer comprising a blend of a polyolefin and adsorbent silica. The adsorbent silica is 5% or more of the blend and the polyolefin is 95% or less of the blend. The multilayer film is oriented in at least one direction to cause fracturing of the top layer to provide a microporous surface exposing the adsorbent silica gel. The fractured top layer is receptive to receiving a printing ink on an exposed surface thereof with enhanced pigment entrapment and rapid ink drying. A single layer film in the form of the top layer, and also oriented in at least one direction also constitutes a part of this invention.

Filtration Article With Fluoropolymer Knit

Disclosed is a filtration article comprising a first layer comprising porous PTFE for fluid filtration (e.g., a PTFE membrane), and a second layer comprising strands of fluoropolymer fibers arranged to form a stable knit. The knit layer comprises interlocking regions that are each defined by corresponding sets of at least two interlocking loop portions of the fluoropolymer fiber strands. In filtration article embodiments, the fluoropolymer fiber strands may be twisted and/or have a rounded outer configuration. The knit layer provides improved dimensional stability as a support layer for the filtration layer and/or as a drainage layer. 1. A filtration article for filtration of particles from a fluid stream , comprising:a first layer, positionable across a fluid stream, comprising a porous PTFE membrane for filtering particles from the fluid stream; anda second layer, positionable across said fluid stream to provide for at least one of drainage of and support of said first layer, comprising a plurality of strands of fluoropolymer fibers arranged to form a knit having a plurality of interlocking regions that are each defined by corresponding different sets of at least two interlocking loop portions of said plurality of strands of fluoropolymer fibers, wherein said plurality of interlocking regions of the knit define a plurality of wales and a plurality of courses, and wherein for at least a first portion of said plurality of strands each strand comprises different loop portions that partially define different, alternating ones of said plurality of interlocking regions located along at least two different ones of said plurality of wales.2. The filtration article of claim 1 , wherein each of said plurality of interlocking regions is defined by corresponding different sets of at least three interlocking loop portions of said plurality of strands of fluoropolymer fibers.3. The filtration article of claim 2 , wherein for each of said plurality of interlocking regions the ...

Printable film

An extruded multilayer film includes a top layer comprising a blend of a polyolefin and adsorbent silica. The adsorbent silica is 5% or more of the blend and the polyolefin is 95% or less of the blend. The multilayer film is oriented in at least one direction to cause fracturing of the top layer to provide a microporous surface exposing the adsorbent silica gel. The fractured top layer is receptive to receiving a printing ink on an exposed surface thereof with enhanced pigment entrapment and rapid ink drying. A single layer film in the form of the top layer, and also oriented in at least one direction also constitutes a part of this invention.

Printable film

An extruded multilayer film includes a top layer comprising a blend of a polyolefin and adsorbent silica. The adsorbent silica is 5% or more of the blend and the polyolefin is 95% or less of the blend. The multilayer film is oriented in at least one direction to cause fracturing of the top layer to provide a microporous surface exposing the adsorbent silica gel. The fractured top layer is receptive to receiving a printing ink on an exposed surface thereof with enhanced pigment entrapment and rapid ink drying. A single layer film in the form of the top layer, and also oriented in at least one direction also constitutes a part of this invention.

Triboelectric mitigator coating

A multilayer film is disclosed, which includes: a top layer; a bottom layer; and a triboelectric mitigator coating on an external surface of at least one of the top layer and the bottom layer, wherein the bottom layer is a different material having different triboelectric properties than the top layer and the triboelectric mitigator coating is effective to reduce static discharge from the multilayer film when it is unwound from a roll. A method of reducing static discharge during unrolling of a roll of film and a method for providing the multilayer film are also disclosed.

Triboelectric mitigator coating

A multilayer film is disclosed, which includes: a top layer; a bottom layer; and a triboelectric mitigator coating on an external surface of at least one of the top layer and the bottom layer, wherein the bottom layer is a different material having different triboelectric properties than the top layer and the triboelectric mitigator coating is effective to reduce static discharge from the multilayer film when it is unwound from a roll. A method of reducing static discharge during unrolling of a roll of film and a method for providing the multilayer film are also disclosed.

Printable film

フルオロポリマーニットを有する濾過物品

【課題】装置の長い寿命全体にわたって申し分のない濾過効率を提供しながら、長い使用時間という利点を有する流体濾過物品の提供。【解決手段】流体流を濾過するための多孔質ＰＴＦＥ（例えば多孔質ＰＴＦＥ膜）を含む第１層と、安定なニットを形成するように配列されたフルオロポリマー繊維ストランドを含む第２層とを含む濾過物品が開示される。ニット層は、フルオロポリマー繊維ストランドの少なくとも２つのインターロック・ループ部分から成る対応セットによってそれぞれが形成されたインターロック領域を含む。濾過物品の実施態様において、フルオロポリマー繊維ストランドは撚られていてよく、且つ／又は丸みを帯びた外側形態を有していてよい。ニット層は、濾過層のための支持層として、且つ／又はドレナージ層として、改善された寸法安定を提供する。【選択図】図２Ａ

Printable film

An extruded multilayer film includes a top layer comprising a blend of a polyolefin and adsorbent silica. The adsorbent silica is 5% or more of the blend and the polyolefin is 95% or less of the blend. The multilayer film is oriented in at least one direction to cause fracturing of the top layer to provide a microporous surface exposing the adsorbent silica gel. The fractured top layer is receptive to receiving a printing ink on an exposed surface thereof with enhanced pigment entrapment and rapid ink drying. A single layer film in the form of the top layer, and also oriented in at least one direction also constitutes a part of this invention.

Filtration article with fluoropolymer knit

Disclosed is a filtration article comprising a first layer comprising porous PTFE for fluid filtration (e.g., a PTFE membrane), and a second layer comprising strands of fluoropolymer fibers arranged to form a stable knit. The knit layer comprises interlocking regions that are each defined by corresponding sets of at least two interlocking loop portions of the fluoropolymer fiber strands. In filtration article embodiments, the fluoropolymer fiber strands may be twisted and/or have a rounded outer configuration. The knit layer provides improved dimensional stability as a support layer for the filtration layer and/or as a drainage layer.

Printable film

Folia do druku

Película imprimible

Una película multicapa extruida incluye una capa superior que comprende una mezcla de una poliolefina y sílice adsorbente. La sílice adsorbente constituye el 5 % o más de la mezcla y la poliolefina constituye el 95 % o menos de la mezcla. La película multicapa está orientada en al menos una dirección para provocar la fractura de la capa superior y proporcionar una superficie microporosa que exponga el gel de sílice adsorbente. La capa superior fracturada es receptiva para recibir una tinta de impresión en una superficie expuesta de la misma con un atrapamiento mejorado del pigmento y un secado rápido de la tinta. Una película de una sola capa en forma de capa superior, y también orientada en al menos una dirección, también constituye una parte de esta invención. (Traducción automática con Google Translate, sin valor legal)