JP4939399B2 - 製紙機械用プレスフェルト、および前記フェルトの製造方法ならびに製造装置 - Google Patents
製紙機械用プレスフェルト、および前記フェルトの製造方法ならびに製造装置 Download PDFInfo
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- JP4939399B2 JP4939399B2 JP2007506636A JP2007506636A JP4939399B2 JP 4939399 B2 JP4939399 B2 JP 4939399B2 JP 2007506636 A JP2007506636 A JP 2007506636A JP 2007506636 A JP2007506636 A JP 2007506636A JP 4939399 B2 JP4939399 B2 JP 4939399B2
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 64
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 64
- 239000011230 binding agent Substances 0.000 claims abstract description 44
- 238000002844 melting Methods 0.000 claims abstract description 30
- 230000008018 melting Effects 0.000 claims abstract description 30
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 83
- 239000004745 nonwoven fabric Substances 0.000 claims description 55
- 229920002292 Nylon 6 Polymers 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 15
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 12
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 claims description 12
- 229920000299 Nylon 12 Polymers 0.000 claims description 9
- 238000013007 heat curing Methods 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000571 Nylon 11 Polymers 0.000 claims description 5
- 150000001408 amides Chemical class 0.000 claims description 5
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 4
- 238000001723 curing Methods 0.000 claims description 4
- 150000004985 diamines Chemical class 0.000 claims description 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 4
- 229920005594 polymer fiber Polymers 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229920001634 Copolyester Polymers 0.000 claims description 2
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 claims description 2
- 229920003189 Nylon 4,6 Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 2
- 229920001748 polybutylene Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims 2
- JZUHIOJYCPIVLQ-UHFFFAOYSA-N 2-methylpentane-1,5-diamine Chemical compound NCC(C)CCCN JZUHIOJYCPIVLQ-UHFFFAOYSA-N 0.000 claims 1
- 150000002531 isophthalic acids Chemical class 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 64
- 238000005096 rolling process Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000009499 grossing Methods 0.000 description 4
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- 239000002759 woven fabric Substances 0.000 description 4
- 241000761389 Copa Species 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methylcyclopentane Chemical group CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
- B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
- D04H1/08—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres and hardened by felting; Felts or felted products
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D—TEXTILES; PAPER
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- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D—TEXTILES; PAPER
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Nonwoven Fabrics (AREA)
Description
- カプロラクタム(caprolactam)、ラウリンラクタム(laurin lactam)、4から12の炭素原子を持つジカルボン酸 (dicarboxylic acids with 4-12 C-atoms)、テレフタル酸 (terephthalic acid)、イソフタル酸 (isophthalic acid)、炭素原子を持つダイマー酸 (dimer acid with C-atoms)、2から12の炭素原子を持つリニア・アルファ・オメガジアミン (Linear alpha, omega diamines with 2-12 C-atoms)、そして2メチル・ペンタメチレン・ジアミン (2-methyl pentamethylenc diamine)の群(group)のうち、少なくとも2つの異なったモノマーで構成される共重合アミド(copolyamide)である。;または、
- ポリアミド12、ポリアミド11、ポリアミド6の群のうちいずれかのポリアミドである。;または、
- ポリオレフィン、特にポリエチレン、ポリプロピレン、またはポリブチレンである。;または、
- ポリアミド、シリコン、ポリウレタン、ポリエステル、またはポリエーテルをベースとする熱可塑性エラストマである。;または、
- 共重合エステル(copolyester)である。
- 融点が110〜180℃までの領域にある共重合アミドと、ポリアミド6;または、
- 融点が110〜180℃までの領域にある共重合アミドと、ポリアミド66;または、
- ポリアミド6とポリアミド66;または、
- ポリアミド12とポリアミド6;または、
- ポリアミド12とポリアミド66;または、
- ポリアミド6とポリアミド6T/6I;または、
- ポリアミド6とポリアミド6T/66;または、
- ポリアミド6とポリアミド6T/6。
- 不織布層と熱可塑性結合剤を含む未処理プレスフェルトを作る工程。この時、熱可塑性結合剤は、熱可塑性接着繊維という形で、および/または複合繊維の熱可塑性接着成分という形で、不織布層内に分散されて含まれている。;
- 熱可塑性結合剤の融点を超える温度になるまで、未処理プレスフェルトを加熱する工程。;そして、
- 加熱後のプレスフェルトに平滑面を用いて圧力をかけながら、熱可塑性結合剤の融点を下回る温度までプレスフェルトを冷却する工程。
以下の項では、サンプルの実施例や比較例を使いながら本発明を更に詳しく説明する。
A:底部不織布層:200g/m2、100%PA6繊維、22 dtex、TM5000型
B:裏張り布:モノフィラメント繊維(単繊維) 650g/m2
C:底部不織布層:200g/m2、100%PA6 繊維、22 dtex、TM5000
D:最上部不織布層:20% BA140 (PA6/COPA K/M 50%/50%) 8dtex、80% TM 5000 E: 17dtex
F:最上部不織布層:30% BA140 (PA6/COPA K/M 50%/50%) 8dtex、70% TM 5100 6.7dtex
G:最上部不織布層:50% BA140 (PA6/COPA K/M 50%/50%) 3.3dtex、50% TM 5100 6.7dtex
例1と同様だが、冷却をしない。その結果得られたプレスフェルトは本発明によるプレスフェルトではなく、表面構造が相対的にかなり粗く平滑性に欠けている。
測定点直径:1ミクロン
参照波長:8mm
合計測定長:40 mm
増分単位:5ミクロン
DIN4776に拠り評価
前記の表では、本発明により、表面のレリーフをおおよそ半分に低減できることが示されている。従って、平滑表面を使った熱可塑性結合剤に対する加圧下での冷却で得られる作用は大きく、かつ明確に証明可能である。表面の平滑化は浸透性を減じる結果を招くが、上記の表では浸透性の低減幅は約25%相当に過ぎず、製紙機械上ではこの程度なら十分に満足できる。
1.1: 未処理プレスフェルトの外側
1.2: 未処理プレスフェルトの内側
2: 加熱カレンダーローラー
3: 非加熱カレンダーローラー
4: 補助加圧ローラー
5: 冷却用シュー
Claims (18)
- 製紙機械のプレス部分の使用に適した浸透性のある紙側の面を有し、前記紙側の面に隣接し、熱可塑性結合剤により結合及び固定された不織布層を有するプレスフェルトを作るための方法であって、
a)前記不織布層と前記熱可塑性結合剤とを含む未処理プレスフェルトを作る工程であって、前記熱可塑性結合剤は、熱可塑性接着繊維及び/又は複合繊維の熱可塑性接着成分として、前記不織布層内に分散されて含まれる工程;
b)前記熱可塑性結合剤の融点を超える温度になるまで、前記未処理プレスフェルトを加熱する工程;及び
c)前記熱可塑性結合剤の融点を下回る温度まで前記プレスフェルトを冷却する工程、により特徴付けられ、
前記未処理プレスフェルトは、エンドレスに形成され、加熱カレンダーローラーとこれと並行に配置された硬化用カレンダーローラーとによって張力をかけられながら運ばれ、
前記未処理プレスフェルトを、加熱カレンダーローラーを通り抜けるように動かすことにより加熱して、
前記硬化用カレンダーローラーと前記加熱カレンダーローラーの間にある平滑な冷却面によって押付け力を印加されながら加熱された前記プレスフェルトを移動させることにより冷却するプレスフェルトを作るための方法。 - 前記未処理プレスフェルトが十分に加熱硬化できる張力を、加熱中の前記プレスフェルトに与えることを特徴とする請求項1記載の方法。
- 使用される前記熱可塑性結合剤は、110℃よりも高いが熱硬化のために必要な温度よりも低い融点を有する素材であることを特徴とする請求項2記載の方法。
- 前記不織布層は、使用される前記熱可塑性繊維の融点が前記熱可塑性結合剤の融点よりも高く、特に少なくとも30℃以上高いことを特徴とする請求項1乃至3のいずれか1項に記載の方法。
- 前記不織布層は、使用される前記熱可塑性繊維の融点が加熱硬化のために必要な温度以上であることを特徴とする請求項4記載の方法。
- 前記熱可塑性結合剤は、
前記熱可塑カプロラクタム(caprolactam)、ラウリンラクタム(laurin lactam)、4から12の炭素原子を持つジカルボン酸(dicarboxylic acids with 4-12 C-atoms)、テレフタル酸(terephthalic acid)、イソフタル酸(isophthalic acid)、炭素原子を持つダイマー酸(dimer acid with C-atoms)、2から12の炭素原子を持つリニア・アルファ・オメガジアミン(Linear alpha, omega diamines with 2-12 C-atoms)、そして2メチル・ペンタメチレン・ジアミン(2-methyl pentamethylene diamine)の群(group)のうち、少なくとも2つの異なったモノマーで構成される共重合アミド(copolyamide);または、
ポリアミド12、ポリアミド11、ポリアミド6の群のうちいずれかのポリアミド;または、
特にポリエチレン、ポリプロピレン、またはポリブチレン等のポリオレフィン;または、
ポリアミド、シリコン、ポリウレタン、ポリエステル、またはポリエーテルをベースとする熱可塑性エラストマ;または、
共重合エステル(copolyester)
から選択されることを特徴とする請求項1乃至5のいずれか1項に記載の方法。 - 前記不織布層は、特にポリアミド6、ポリアミド46、ポリアミド66、ポリアミド12、ポリアミド11、ポリアミド6T/66、ポリアミド6T/6、ポリアミド6T/6I、またはポリアミド12Tの群に含まれるポリアミドから成る熱可塑性溶融スパン式ポリマ繊維が使用され、それらの一部は扁平繊維の形状でも良いことを特徴とする請求項1乃至6のいずれか1項に記載の方法。
- 前記不織布層には、30dtex未満の繊維のみが使用されることを特徴とする請求項1乃至7のいずれか1項に記載の方法。
- 前記不織布層には、8dtex未満の繊維のみが使用されることを特徴とする請求項1乃至7のいずれか1項に記載の方法。
- 融点が低い方の成分を前記熱可塑性結合剤に、融点が高い方の成分を前記不織布層に充てながら、前述の素材を以下のいずれの組み合わせにも用いることを特徴とする請求項6乃至9のいずれか1項に記載の方法
融点が110〜180℃までの領域にある共重合アミドと、ポリアミド6;または、
融点が110〜180℃までの領域にある共重合アミドと、ポリアミド66;または、
ポリアミド6とポリアミド66;または、
ポリアミド12とポリアミド6;または、
ポリアミド12とポリアミド66;または、
ポリアミド6とポリアミド6T/6I;または、
ポリアミド6とポリアミド6T/66;または、
ポリアミド6とポリアミド6T/6。 - 前記熱可塑性結合剤と前記不織布層との重量比としては、5:95から95:5までが選択されることを特徴とする請求項1乃至10のいずれか1項に記載の方法。
- 前記熱可塑性結合剤と前記不織布層との重量比としては、15:85から35:65までが選択されることを特徴とする請求項1乃至10のいずれか1項に記載の方法。
- 前記未処理プレスフェルトを作るために、不織布層用の複合繊維を使用し、前記複合繊維の2種類の成分が、核と外被を構成および/または並列して存在することを特徴とする請求項1乃至12のいずれか1項に記載の方法。
- 前記複合繊維を使用して前記不織布層を作る際、該複合繊維に、更に細かなタイターの単一成分繊維、および/または扁平繊維を追加して混ぜ込むことを特徴とする請求項1乃至13のいずれか1項に記載の方法。
- 前記未処理プレスフェルトはいくつかの前記不織布層から成り、1層以上の追加不織布層にも同様に、前記熱可塑性接着繊維及び/又は複合繊維の熱可塑性接着成分として前記熱可塑性結合剤が含まれていることを特徴とする請求項1乃至13のいずれか1項に記載の方法。
- 前記プレスフェルトの表面に隣接する不織布層の方が、前記1層以上の追加不織布層よりも細かなタイターの繊維が使用されていることを特徴とする請求項15記載の方法。
- 前記プレスフェルト表面に隣接する不織布層において、当該層内の他の素材に対する前記熱可塑性結合剤の割合は、他の不織布層の1つにおける割合よりも大きくなるように選択されていることを特徴とする請求項15あるいは16いずれか記載の方法。
- 前記未処理プレスフェルトには、裏張り布または裏張り層があって、1層またはそれ以上の不織布層が前記裏張り布または裏張り層に縫い付けられていることを特徴とする請求項1乃至17のいずれか1項に記載の方法。
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JP4875895B2 (ja) | 2006-01-06 | 2012-02-15 | イチカワ株式会社 | 抄紙用プレスフェルト |
JP4157136B2 (ja) | 2006-02-14 | 2008-09-24 | イチカワ株式会社 | 抄紙用プレスフェルト |
JP4891826B2 (ja) * | 2007-03-30 | 2012-03-07 | イチカワ株式会社 | 抄紙用プレスフェルト |
US8853104B2 (en) * | 2007-06-20 | 2014-10-07 | Albany International Corp. | Industrial fabric with porous and controlled plasticized surface |
EP2141283A3 (de) * | 2008-07-02 | 2012-04-25 | Voith Patent GmbH | Trocknungsband für eine Kondensationstrocknungseinrichtung |
DE102009027304A1 (de) | 2009-06-29 | 2010-12-30 | Voith Patent Gmbh | Verfahren zur Beeinflussung der Oberflächenstruktur einer Bespannung, Vorrichtung zur Herstellung einer Bespannung |
DE102009029649A1 (de) * | 2009-09-22 | 2011-03-24 | Voith Patent Gmbh | Trocknungsband für eine Kondensationstrocknungseinrichtung |
US9523172B2 (en) | 2011-07-18 | 2016-12-20 | Lakeland Industries, Inc. | Process for producing polyvinyl alcohol articles |
US9797073B1 (en) | 2011-07-18 | 2017-10-24 | Lakeland Industries, Inc. | Process for producing polyvinyl alcohol articles |
CN107604739B (zh) * | 2017-09-26 | 2019-06-07 | 江南大学 | 一种过滤用棉秆皮纤维与壳聚糖复合非织布的制备方法 |
US11098450B2 (en) | 2017-10-27 | 2021-08-24 | Albany International Corp. | Methods for making improved cellulosic products using novel press felts and products made therefrom |
CN113279138A (zh) * | 2021-05-31 | 2021-08-20 | 佛山市南海天龙亿达实业有限公司 | 一种毛毡制造机 |
CN114349956A (zh) * | 2022-02-08 | 2022-04-15 | 常州纺织服装职业技术学院 | 一种低密度高分子量生物基共聚酰胺透明型高弹性材料的合成 |
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CA1223764A (en) | 1983-10-19 | 1987-07-07 | August Murka, Jr. | Papermaker's felt |
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