JP7063968B2 - 弾性ストランドを有するエラストマー積層体の製造方法 - Google Patents
弾性ストランドを有するエラストマー積層体の製造方法 Download PDFInfo
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- JP7063968B2 JP7063968B2 JP2020179772A JP2020179772A JP7063968B2 JP 7063968 B2 JP7063968 B2 JP 7063968B2 JP 2020179772 A JP2020179772 A JP 2020179772A JP 2020179772 A JP2020179772 A JP 2020179772A JP 7063968 B2 JP7063968 B2 JP 7063968B2
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- 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
- B32B5/02—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 structural features of a fibrous or filamentary layer
- B32B5/04—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 structural features of a fibrous or filamentary layer characterised by a layer being specifically extensible by reason of its structure or arrangement, e.g. by reason of the chemical nature of the fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H39/00—Associating, collating, or gathering articles or webs
- B65H39/16—Associating two or more webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/30—Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/26—Elastomers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
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Description
弾性ストランドを供給する工程であって、弾性ストランドは、非伸張状態で第1の断面積を画定する、工程と、弾性ストランドを伸張させる工程であって、伸張された弾性ストランドは、第1の断面積よりも小さい第2の断面積を画定する、工程と、第1の基材及び第2の基材を、伸張された弾性ストランドが第1の基材と第2の基材との間にある状態で前進させる工程と、第1の基材の展性の第1の材料及び第2の基材の展性の第2の材料が変形して伸張された弾性ストランドの外周を完全に包囲するように、第1の基材の第1の領域及び第2の基材の第2の領域に熱及び圧力を加える工程と、第1の基材の第1の領域及び第2の基材の第2の領域から熱及び圧力を除去することにより、展性の第1の材料及び展性の第2の材料を硬化させて伸張された弾性ストランドの外周によって画定される断面形状に一致する結合部を形成する工程と、伸張された弾性ストランドから張力を解放することによって、弾性ストランドの一部と硬化した第1の材料及び第2の材料との間に摩擦ロックを適用する工程と、を含む。
弾性ストランドを供給する工程であって、弾性ストランドは、非伸張状態で第1の断面積を画定する、工程と、弾性ストランドを伸張させる工程であって、伸張された弾性ストランドは、第1の断面積よりも小さい第2の断面積を画定する、工程と、第1の基材及び第2の基材を、伸張された弾性ストランドが第1の基材と第2の基材との間にある状態で前進させる工程と、第1の基材の第1の材料と第2の基材の第2の材料とを、展性の第1の材料及び展性の第2の材料を含む結合領域内で共に圧縮する工程であって、伸張された弾性ストランドの個別の長さの外周が展性の第1の材料及び展性の第2の材料によって完全に包囲されるように、伸張された弾性ストランドの個別の長さが結合領域を通って延びる、工程と、展性の第1の材料及び展性の第2の材料を硬化させて、伸張した弾性ストランドの外周によって画定される断面形状と一致させる工程と、伸張された弾性ストランドから張力を解放することによって、弾性ストランドの個別の長さと硬化した第1の材料及び第2の材料との間に摩擦ロックを適用する工程と、を含む。
弾性ストランドを供給する工程であって、弾性ストランドは、非伸張状態で第1の断面積を画定する、工程と、弾性ストランドを伸張させる工程であって、伸張された弾性ストランドは、第1の断面積よりも小さい第2の断面積を画定する、工程と、第1の表面と、反対側の第2の表面とを有する基材を供給する工程と、伸張された弾性ストランドを基材の第1の表面上に配置する工程と、基材の第1の部分を、伸張された弾性ストランドが基材の第1の部分と第2の部分との間に配置された状態で、基材の第2の部分の上に折り畳む工程と、基材の展性材料が変形して伸張された弾性ストランドの外周を完全に包囲するように、第1の部分の第1の領域及び第2の部分の第2の領域に熱及び圧力を加える工程と、第1の領域及び第2の領域から熱及び圧力を除去することにより、展性材料を硬化させて、伸張された弾性ストランドの外周によって画定される断面形状と一致する断面形状を画定する工程と、伸張された弾性ストランドから張力を解放することによって、弾性ストランドの一部と硬化した第1の材料及び第2の材料との間に摩擦ロックを適用する工程と、を含む。
本明細書において「吸収性物品」とは、主な機能が汚れ及び***物を吸収かつ保持することである消費者製品を指すために用いられる。吸収性物品には、生理用ナプキン、タンポン、パンティライナー、***間装置、創傷包帯、拭き取り用品、テープ式おむつ及びおむつパンツを含む使い捨ておむつ、再利用可能な外側カバーを有するおむつ用のインサート、成人失禁用おむつ、成人失禁用パッド、並びに成人失禁用パンツが含まれ得る。本明細書において、用語「使い捨て」は、洗濯されること又は他の方法で吸収性物品として再生又は再使用されることが一般に意図されていない吸収性物品を説明するために用いられる(例えば、これらは1回の使用後に廃棄されるように意図され、またリサイクル、堆肥化、ないしは別の方法で環境に適合する方法で処分するように構成されてもよい)。
Claims (10)
- エラストマー積層体を製造する方法であって、
弾性ストランド(316)を供給する工程であって、前記弾性ストランド(316)は、非伸張状態における第1の断面積を画定する、工程と、
前記弾性ストランド(316)を伸張させる工程であって、前記伸張された弾性ストランド(316)は、前記第1の断面積よりも小さい第2の断面積を画定する、工程と、
第1の基材(306)及び第2の基材(308)を、前記伸張された弾性ストランド(316)が前記第1の基材(306)と前記第2の基材(308)との間にある状態で前進させる工程と、
前記第1の基材(306)、前記第2の基材(308)及び前記伸張された弾性ストランド(316)を、相対的に高い高さ及び相対的に低い高さで前記伸張された弾性ストランド(316)を横切って連続的に延びるパターン表面(349d)と、超音波ホーン(349a)との間で前進させて、前記第1の基材(306)の第1の材料(354)及び前記第2の基材(308)の第2の材料(356)が変形して前記伸張された弾性ストランド(316)の外周(358)を完全に包囲するように、前記第1の基材(306)の第1の領域(350)及び前記第2の基材(308)の第2の領域(352)に熱及び圧力を加える工程と、
前記第1の基材(306)の前記第1の領域(350)及び前記第2の基材(308)の前記第2の領域(352)から熱及び圧力を除去することにより、前記第1の材料(354)及び前記第2の材料(356)を硬化させて、異なる厚さを有するとともに前記伸張された弾性ストランド(316)の前記外周(358)によって画定される断面形状に一致する結合部(322)を形成する工程と、
前記伸張された弾性ストランド(316)から張力を解放することによって、前記弾性ストランド(316)の一部と前記硬化した第1の材料及び第2の材料(354、356)との間に摩擦ロックを適用する工程と、を含み、
前記弾性ストランド(316)は複数のフィラメント(364)を含み、
前記複数のフィラメント(364)のうちの少なくとも2つが、硬化した第1の材料(354)及び硬化した第2の材料(356)の少なくとも一方によって互いに分離され、前記フィラメント(364)のそれぞれが、前記硬化した第1の材料(354)及び前記硬化した第2の材料(356)の少なくとも一方と接触する、方法。 - 前記結合部(322)は接着剤を含まない、請求項1に記載の方法。
- 前記弾性ストランド(316)をビーム(314)から巻き出す工程を更に含む、請求項1又は2に記載の方法。
- 前記伸張させる工程は、前記巻き出す工程の後に行われる、請求項3に記載の方法。
- 前記結合部(322)は前記フィラメント(364)の最小断面厚さより少なくとも50%大きい厚さを画定する、請求項1~4のいずれか一項に記載の方法。
- 前記弾性ストランド(316)はコーティングを有する、請求項1~5のいずれか一項に記載の方法。
- 前記コーティングの一部を除去する工程を更に含む、請求項6に記載の方法。
- 前記第1の基材(306)は第1の不織布を含み、前記第2の基材(308)は第2の不織布を含む、請求項1~7のいずれか一項に記載の方法。
- 前記弾性ストランドは、10以上100未満のデシテックスを有する、請求項1~8のいずれか一項に記載の方法。
- 基材(306)を供給する工程と、
前記基材(306)の第1の部分(306a)を前記基材(306)の第2の部分(306b)の上に折り畳む工程であって、前記第1の部分(306a)が前記第1の基材(306)を画定し、前記第2の部分(306b)が前記第2の基材(308)を画定する、工程と、を更に含む、請求項1~9のいずれか一項に記載の方法。
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