JP7381453B2 - 高dpf酢酸セルローストウおよび製造方法 - Google Patents
高dpf酢酸セルローストウおよび製造方法 Download PDFInfo
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- JP7381453B2 JP7381453B2 JP2020513800A JP2020513800A JP7381453B2 JP 7381453 B2 JP7381453 B2 JP 7381453B2 JP 2020513800 A JP2020513800 A JP 2020513800A JP 2020513800 A JP2020513800 A JP 2020513800A JP 7381453 B2 JP7381453 B2 JP 7381453B2
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- FBWNMEQMRUMQSO-UHFFFAOYSA-N tergitol NP-9 Chemical compound CCCCCCCCCC1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 FBWNMEQMRUMQSO-UHFFFAOYSA-N 0.000 description 1
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- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
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- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 1
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- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
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- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
- B65B27/12—Baling or bundling compressible fibrous material, e.g. peat
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- D—TEXTILES; PAPER
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- D—TEXTILES; PAPER
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
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- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
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- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
本出願は、2017年9月8日に出願された米国仮出願第62/555,995号の優先権を主張し、その全体は参照により本明細書に組み込まれる。
本開示は、フィラメント当たり少なくとも20デニールまたはフィラメント当たり少なくとも25デニールを含む酢酸セルローストウ、およびこの酢酸セルローストウの製造方法に関する。いくつかの態様において、酢酸セルローストウは、20,000デニールを超えるトータルデニールを有する。本開示はさらに、フィラメント当たり少なくとも20デニールを有する酢酸セルローストウを含むフィルターロッドに関する。本開示はまた、フィラメント当たり少なくとも20デニールおよび20,000~60,000のトータルデニールを有する酢酸セルローストウを製造する方法、および/またはそのような酢酸セルローストウからフィルターを製造する方法に関する。
本明細書に記載されるように、本開示は、フィラメント当たり少なくとも15デニール、例えば少なくとも17dpf、少なくとも18dpf、少なくとも20dpf、少なくとも23dpf、少なくとも25dpf、少なくとも27dpf、少なくとも30dpf、少なくとも32dpf、または少なくとも35dpfを有する酢酸セルローストウに関する。範囲に関して、本発明で使用するフィラメントは、15~50dpf、例えば20~50dpf、20~40dpf、20~35dpf、23~33dpf、または25~30dpfの範囲であり得る。本明細書で使用される酢酸セルロースは、二酢酸セルロースを指す。いくつかの態様において、酢酸セルロースは2~2.6の置換度を有する。
セルロースエステルからフィラメントを形成するために、溶媒にセルロースエステルを溶解してドープ溶液を形成することによりドープを形成する。溶媒は、水、アセトン、メチルエチルケトン、塩化メチレン、ジオキサン、ジメチルホルムアミド、メタノール、エタノール、氷酢酸、超臨界二酸化炭素、前述のポリマーを溶解できる任意の適切な溶媒、およびそれらの任意の組み合わせからなる群から選択することができる。いくつかの態様では、溶媒はアセトン、またはアセトンと5重量%以下の水との組み合わせである。ドープに顔料を追加することもできる。ドープは、例えば、20~40重量%の酢酸セルロースおよび60~90重量%の溶媒を含んでもよい。顔料は、添加された場合、0.1~5重量%であり得る。ドープは、紡糸されてフィラメントを形成する前に、ろ過および脱気される。ドープは、各キャビネットが紡糸口金を含む1つ以上のキャビネットを含む紡糸機で紡糸されてもよい。紡糸口金は、溶媒がフィラメントから蒸発する速度に影響する孔を備えている。
本発明で使用するためのフィラメントは、フィラメント当たり高デニール(dpf)フィラメント、即ち15dpf以上または20dpf以上である。いくつかの実施形態では、本発明で使用するフィラメントは25dpf以上であってもよい。いくつかの実施形態では、本発明で使用するフィラメントは、20~50dpf、例えば20~35dpf、または25~30dpfであり得る。
本発明のいくつかの実施形態は、複数のフィラメントからトウバンドを形成することを含み得る。いくつかの実施形態において、トウバンドは、トータルデニール20,000以上、例えば、21,000超または22,000超であり得る。範囲に関して、トータルデニールは、20,000~60,000、例えば22,500~60,000、20,000~40,000、20,000~30,000、または22,500~40,000トータルデニールであり得る。いくつかの実施形態では、トウは3.5kg~25kgの破壊強度を有することができる。
本発明のいくつかの実施形態は、捲縮されたトウバンドを梱包してベールを生成することを含むことができる。いくつかの実施形態では、梱包は、捲縮されたトウバンドを缶内にパターンで置くこと、例えば、敷設、堆積、または配置することを伴い得る。缶は、任意の形状、好ましくは正方形または長方形、および任意の材料であり得る容器を指すために一般的に使用されることに注意されたい。本明細書で使用される「パターン」という用語は、配置中に変更してもよい、または、変更されない、任意の設計を指す。本発明のいくつかの実施形態では、パターンは、0.5サイクル/フィート~6サイクル/フィートの周期性を有する実質的にジグザグであってもよい。いくつかの実施形態では、配置は、10m/m~40m/mのパドリング指数で捲縮されたトウバンドをパドリングすることを伴い得る。本明細書で使用される「パドリング」という用語は、トウバンドが配置される直線距離よりも長い実際の長さのトウバンドを配置するように、トウバンドを少なくとも部分的にそれ自体の上に置くことを指す。本明細書で使用される「パドリング指数」という用語は、トウバンドが配置される直線距離当たりのトウバンドの長さを指す。
本明細書に記載される酢酸セルローストウは、酢酸セルローストウフィルターとして使用されるフィルターロッドとして調製されてもよい。フィルターを形成する方法は、ベールから少なくとも15トータルデニール、例えば、少なくとも20トータルデニールまたは少なくとも25トータルデニール、および任意に20,500超のトータルデニールを有するトウバンド(クリンプまたはその他)を、フィルターロッドを製造できる装置へ供給することを含んでもよい。いくつかの実施形態では、フィルターロッドを製造することは、以下の少なくとも1つを含むが、これらに限定されないいくつかのステップを含むことができる:捲縮トウバンドを被覆トウバンドに被覆し;必要に応じて、被覆トウバンドを添加剤で処理し;被覆トウバンドをチャネリングして、連続したトウケーブルを生成し;連続したトウケーブルを紙で包み、巻かれたトウロッドを作り;巻き付けられたトウロッドの紙を接着して、フィルターロッドの長さにし;フィルターロッドの長さをフィルターロッド、フィルター、および/またはフィルターセクションにカットし;またはそれらの任意の組み合わせ。いくつかの実施形態では、フィルターおよび/またはフィルターセクションの製造は、フィルターロッドの長さまたはフィルターロッドの切断を伴い得る。いくつかの実施形態では、フィルターセクションの製造は、フィルターロッドの長さ、フィルターロッド、またはフィルターの切断を伴い得る。フィルターロッドの長さ、フィルターロッド、および/またはフィルターセクションは、円形、実質的に円形、卵形、実質的に卵形、多角形(角の丸いものを含む)、またはそれらのハイブリッドを含むがこれらに限定されない任意の断面形状を有してもよい。
Si=個々のサンプルの標準偏差(QTM結果)
X=10個のサンプルボックスの総平均
K=サンプルボックスの数(10)
%CV=変動係数
フィラメント当たりのデニールおよびトータルデニールが異なる4つの酢酸セルローストウを、以下の表1に示すように調製した。トウは、9/16インチクリンパーおよびジェットタイプ33孔165ミクロンジェットを使用して毎分300メートルの紡糸速度で調製した。
実施例1~3のそれぞれはまた、基準硬度0.65の参考サンプル、比較例に対する硬度についても試験した。硬度は、セルリアン品質テストモジュール(QTM-ASM6、Rev#2)デバイスを設定し、ロッドが曲がるまで圧力を加えることでテストした。硬度は通常、完全に硬化したフィルターロッドで実施される。標準条件は22℃、60%RHである。QTMの円周は、通常のロッドについて、23.1-25.0mm-5/16インチ157mm(大径ボビン付き)である。結果を図3に示す。図3に示すように、実施例1~3の硬度は、参考と比較して満足のいくものであった。従って、フィラメント当たり少なくとも15デニールを有する酢酸セルローストウは、依然として満足のいく硬度を達成しながらも、改善されたEPDを達成した。
Claims (15)
- フィラメント当たり少なくとも15デニール、および20,500超のトータルデニールを有し、かつ0.9mm水/mm長さ以下のカプセル化圧力降下(EPD)を有し、前記EPDはCORESTA(「タバコに関する科学研究協力センター」)が推奨する2007年6月付けの方法No.41によって測定されたものであるとともに、30,000amu~100,000amuの数平均分子量および1.5~2.5の多分散性を有する、酢酸セルローストウ。
- 前記トウが、3.5kg~25kgの破壊強度を有する、請求項1に記載のトウ。
- フィラメント当たり20~50デニール、および21,000~60,000のトータルデニールを有する、請求項1または2に記載のトウ。
- 請求項1に記載の酢酸セルローストウを含むトウベール。
- 請求項1に記載の酢酸セルローストウを含むフィルター。
- 前記フィルターが、3mm水/mm長さ未満のEPDを有し、前記EPDはCORESTA(「タバコに関する科学研究協力センター」)が推奨する2007年6月付けの方法No.41によって測定されたものである、請求項5に記載のフィルター。
- 前記酢酸セルローストウを含む前記フィルターのEPDが、15%未満の変動係数を有する、請求項5または6に記載のフィルター。
- 前記フィルターが、5~30mmの円周を有する、請求項5~7のいずれか一項に記載のフィルター。
- 酢酸セルローストウベールの製造方法であって、
酢酸セルロースを溶媒に溶解して、酢酸セルロースドープを形成する工程と、
直径100~300ミクロンの孔を少なくとも1つ有する少なくとも1つの紡糸口金を通して前記酢酸セルロースドープを紡糸して、フィラメント当たり少なくとも15デニール、かつ20,500超のトータルデニールを有するフィラメントを形成する工程と、
前記フィラメントを束ねてトウを形成する工程と、
前記トウを可塑化し、かつ捲縮させる工程と、
前記トウを乾燥させる工程と、
前記トウをベールに梱包する工程と、
を含むとともに、前記トウが0.9mm水/mm長さ以下のカプセル化圧力降下(EPD)を有し、前記EPDはCORESTA(「タバコに関する科学研究協力センター」)が推奨する2007年6月付けの方法No.41によって測定されたものであり、かつ、前記トウが30,000amu~100,000amuの数平均分子量および1.5~2.5の多分散性を有する、製造方法。 - 前記フィラメントは、束ねてトウを形成する工程の前に蒸発工程を経る、請求項9に記載の製造方法。
- 前記蒸発工程により前記溶媒の少なくとも90重量%を除去する、請求項9または10に記載の製造方法。
- 前記蒸発工程を90~100℃の温度で実施する、請求項9~11のいずれか一項に記載の製造方法。
- 前記蒸発工程を120~180psiの圧力で行う、請求項9~12のいずれか一項に記載の製造方法。
- 前記フィラメントが、0.7~1.6のドローダウン比で前記少なくとも1つの紡糸口金から出る、請求項9~13のいずれか一項に記載の製造方法。
- 蒸発工程の滞留時間が、2~8のフィラメント当たりデニールを有するフィラメントから作られた同様の酢酸セルローストウベールの滞留時間に比較して、10%よりも大きく増加する、請求項9~14のいずれか一項に記載の方法。
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WO2022109253A1 (en) * | 2020-11-20 | 2022-05-27 | Acetate International Llc | Degradable cellulose acetate tow band comprising a filler |
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