JPH04168034A - Manufacture of sheet containing powder - Google Patents
Manufacture of sheet containing powderInfo
- Publication number
- JPH04168034A JPH04168034A JP2296347A JP29634790A JPH04168034A JP H04168034 A JPH04168034 A JP H04168034A JP 2296347 A JP2296347 A JP 2296347A JP 29634790 A JP29634790 A JP 29634790A JP H04168034 A JPH04168034 A JP H04168034A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- nonwoven fabric
- woven fabric
- sealing
- mold
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 68
- 239000000835 fiber Substances 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 2
- 230000001464 adherent effect Effects 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 description 9
- 239000002344 surface layer Substances 0.000 description 9
- -1 polypropylene Polymers 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000000306 component Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
- B29C65/7443—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc by means of ultrasonic vibrations
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7891—Means for handling of moving sheets or webs of discontinuously moving sheets or webs
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/486—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by their physical form being non-liquid, e.g. in the form of granules or powders
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えばマスク、吸水シート、液体フィルタ、
空調用フィルタなとの用途に用いられる粉体封入シート
の製造方法に間する。詳細には超音波によってシールか
つ溶断する際にシート内に封入される粉体が超音波振動
によって飛散することがない粉体封入シートの製造方法
に間する。Detailed Description of the Invention (Industrial Application Field) The present invention is applicable to, for example, masks, water-absorbing sheets, liquid filters,
This article describes a method for manufacturing powder-filled sheets used for applications such as air conditioning filters. Specifically, the present invention provides a method for producing a powder-enclosed sheet in which the powder enclosed within the sheet is not scattered by ultrasonic vibrations when sealed and cut by ultrasonic waves.
（従来の技術）
従来、粉体封入シート（１）の製造方法としては、不織
布（２Ｘ２）間に粉体（４）を介在させた状態で、この
不織布（２）（２＞をヒートシールや高周波シールでシ
ールし、所定の形状に裁断するという方法がある。(Prior art) Conventionally, as a method for manufacturing the powder-filled sheet (1), the powder (4) is interposed between the non-woven fabrics (2×2), and the non-woven fabrics (2) (2>) are heat-sealed or One method is to seal it with a high-frequency seal and cut it into a predetermined shape.
しかしながら、シール工程でヒートシールを用いる場合
、第８図に示すように、積層した不織布（２）を加熱し
た金型により熱融着させて周縁をシールするために、充
分に熱を伝導させる必要があることから、そのシール部
分（３）は比較的長時間高温に曝されることになりフィ
ルム化し、更にシール部分（３）周辺もヒートシール時
の熱によってフィルム化し風合いも硬くなっていた。However, when heat sealing is used in the sealing process, as shown in Figure 8, it is necessary to conduct sufficient heat to seal the periphery by heat-sealing the laminated nonwoven fabric (2) using a heated mold. Because of this, the sealed portion (3) was exposed to high temperatures for a relatively long period of time and formed into a film, and the area around the sealed portion (3) also became a film due to the heat during heat sealing, resulting in a hard texture.
一方、高周波シールを用いた場合、電極間に挟まれた不
織布の構成繊維が高周波電磁界エネルギーを吸収して発
熱し、不織布の周縁が熱融着しシールされるが、高周波
による発熱量はきわめて大きく、そのシール部分は前記
ヒートシールの場合と同様にフィルム化していた。On the other hand, when using a high-frequency seal, the constituent fibers of the non-woven fabric sandwiched between the electrodes absorb the high-frequency electromagnetic field energy and generate heat, and the periphery of the non-woven fabric is thermally fused and sealed, but the amount of heat generated by the high frequency is extremely small. It was large, and the sealed portion was formed into a film as in the case of heat sealing.
又、高周波による熱は電極の当接部分のみ成らず、その
周辺にも波及し、シール部分周辺もフィルム化し風合い
も硬くなっていた。更には、高周波シールではポリプロ
ピレンなとの誘導率と誘電正接の小さな樹脂からなる繊
維を用いた場合、十分なシール強度が得られないという
問題もあった。In addition, the heat generated by the high frequency waves spread not only to the contact area of the electrode but also to the surrounding area, and the area around the seal area also became a film and had a hard texture. Furthermore, in high-frequency seals, when fibers made of a resin such as polypropylene having a small dielectric constant and dielectric loss tangent are used, there is a problem in that sufficient sealing strength cannot be obtained.
このため、これらヒートシールや高周波シールをシール
手段として用いて製造された粉体封入シートにあっては
、使用時に該シート周囲のシール部分が肌に引掛ったり
当たったりし、マスクなと人体の皮膚に適用する粉体封
入シートとしては不適当であった。For this reason, when using powder-filled sheets manufactured using heat seals or high-frequency seals as sealing means, the seal around the sheet may catch or hit the skin during use, which can cause damage to the human body when used as a mask. It was unsuitable as a powder-enclosed sheet for application to the skin.
このような事情から、本発明者は、鋭意研究を重ねた結
果、積層された不織布を表面が平坦な超音波ホーンと刃
状の金型との間に挟んで超音波により線状にシールかつ
溶断することによって、シール部分を幅狭とすることが
でき、かつフィルム化しない新規なシール手段を見い出
したのである。Under these circumstances, as a result of extensive research, the inventors of the present invention sandwiched a laminated nonwoven fabric between an ultrasonic horn with a flat surface and a blade-like mold, and sealed it in a linear shape using ultrasonic waves. They discovered a new sealing method that allows the sealing portion to be made narrower by cutting by fusing and does not form a film.
ところが、超音波により線状にシールかつ溶断する際、
金型上或いはその近傍に粉体があると、超音波振動によ
って粉体が周辺に飛散するという不具合が生じていた。However, when sealing and cutting in a linear manner using ultrasonic waves,
If there is powder on or near the mold, there has been a problem in that the powder is scattered around by ultrasonic vibrations.
本発明は、超音波によりシールかつ溶断する際に粉体が
周辺に飛散することがなく、効率的にシールかつ溶断を
行うことができると共に、人体の皮膚に適用する場合で
も肌に引掛りや当りがない粉体封入シートの製造方法を
提供することを目的とするものである。The present invention enables efficient sealing and fusing without scattering powder to the surrounding area when sealing and fusing is performed using ultrasonic waves, and even when applied to human skin, it does not catch or hit the skin. The object of the present invention is to provide a method for manufacturing a powder-enclosed sheet that is free from dust.
（課題を解決するための手段及び作用）上記目的を達成
するため、本発明は、 「熱接着性繊維を含む嵩高な不
織布に粉体を散布し、次いで加熱することにより粉体を
嵩高な不織布に仮固定し、次いで熱可塑性ＩＩｋ雄を含
む表層材を積層し、この積層体を超音波ホーンと刃状の
金型との間に挟んで超音波によりシールかつ溶断するこ
とを特徴とする粉体封入シートの製造方法」をその要旨
とした。(Means and effects for solving the problems) In order to achieve the above object, the present invention provides the following methods: ``Spreading powder on a bulky nonwoven fabric containing thermal adhesive fibers, and then heating the powder to form a bulky nonwoven fabric. A powder characterized by temporarily fixing the powder to a powder, then laminating a surface material containing a thermoplastic IIk male, sandwiching this laminate between an ultrasonic horn and a blade-shaped mold, and sealing and fusing it by ultrasonic waves. The gist was ``Method for manufacturing body encapsulation sheet''.
以下、本発明の粉体封入シートの製造方法を第１〜７図
に示す図面に従って詳細に説明する。Hereinafter, the method for manufacturing a powder-encapsulated sheet of the present invention will be explained in detail with reference to the drawings shown in FIGS. 1 to 7.
まず、第１図及び第２図に示すように、熱接着性繊維を
含む嵩高な不織布（Ｉ３）に粉体を散布する。First, as shown in FIGS. 1 and 2, powder is sprinkled on a bulky nonwoven fabric (I3) containing heat-adhesive fibers.
粉体（１４）を散布する不織布（１３）としては、散布
された粉体（１４）を仮固定するため、熱接着性繊維を
含んでいる必要がある。その含有量は特に限定されない
が、熱接着性繊維の含有量が少なければ同不織布（１３
）に固定できる粉体量は少なくなり、固定されなかった
粉体（１４）は後述するシール工程の際に飛散する虞が
ある。このため、熱接着性繊維の含有量は該シー） （
１１）に封入する粉体（１４）の封入量や種類に応じて
適宜変更する必要がある。The nonwoven fabric (13) on which the powder (14) is spread needs to contain thermal adhesive fibers in order to temporarily fix the spread powder (14). The content is not particularly limited, but if the content of heat-adhesive fibers is small, the same nonwoven fabric (13
), the amount of powder that can be fixed in the powder (14) is reduced, and there is a risk that the powder (14) that is not fixed may be scattered during the sealing process described later. For this reason, the content of thermally adhesive fibers is
It is necessary to change it appropriately depending on the amount and type of powder (14) to be sealed in 11).
また、この不織布（１３）は粉体（１４）を３次元的に
分散させて保持することができるよう嵩高な構造のもの
が望ましい。このような不織布（１３）としては、例え
ば熱融着成分を含む芯鞘型複合繊維によって繊維ウェア
を形成し、この繊維ウェアを熱処理して熱融着成分によ
り繊維相互を結合した不織布や、ホットメルト樹脂から
なる溶融紡糸繊維を集積した不織布などを使用すること
ができる。尚、この不織布（１３）には後述する表層材
（１２）と同し様に超音波により熱融着する熱可塑性繊
維を含ませてもよく、シール工程で該不織布も表層材と
共にシールかつ溶断することができる。Moreover, this nonwoven fabric (13) preferably has a bulky structure so that it can three-dimensionally disperse and hold the powder (14). Examples of such a nonwoven fabric (13) include, for example, a nonwoven fabric in which a fiber wear is formed from a core-sheath type composite fiber containing a heat-fusible component, and this fiber wear is heat-treated to bond the fibers together with a heat-fusible component, or a hot A nonwoven fabric made of melt-spun fibers made of melt resin can be used. Note that this nonwoven fabric (13) may contain thermoplastic fibers that can be thermally bonded by ultrasonic waves in the same way as the surface layer material (12) described later, and in the sealing process, the nonwoven fabric is also sealed and fused together with the surface layer material. can do.
不織布（１３）に散布する粉体（１４）としては、活性
炭、ゼオライトなどの脱臭剤や、ポリアクリル酸塩なと
の高吸水性粉末、触媒なとの機能性粉体を使用すること
ができる。尚、粉体（１４）の散布は、第１［ｆｆｉに
示すように、不織布（１３）の粉体（１４）の散布され
ない側からサクション（１７）で吸引しつつ行なうのが
よい。というのは不織布（１３）上に散布された粉体（
１４）が反対側から吸引されて同不織布（１３）内部の
構成繊維間に広く分散することになるからである。As the powder (14) to be sprinkled on the nonwoven fabric (13), deodorizing agents such as activated carbon and zeolite, highly water-absorbing powders such as polyacrylates, and functional powders such as catalysts can be used. . Incidentally, the powder (14) is preferably spread while being suctioned by the suction (17) from the side of the nonwoven fabric (13) on which the powder (14) is not spread, as shown in the first [ffi]. This is because the powder (
14) will be sucked in from the opposite side and widely dispersed among the constituent fibers inside the nonwoven fabric (13).
次いで、第１図及び第３図に示すように、不織布（１３
）を加熱することにより粉体（１４）を嵩高な不織布（
１３）に仮固定する。Next, as shown in FIGS. 1 and 3, a nonwoven fabric (13
) by heating the powder (14) to form a bulky non-woven fabric (
13) Temporarily fix.
前述した如く、不織布（１３）の構成繊維間には粉体（
１４）が広く分散している。同様に不織布（１３）の構
成繊維間には熱接着性繊維も粉体（１４）と隣合わせる
ように分散している。このため、不織布（１３）を加熱
することにより、粉体（１４）は、同粉体（１４）と隣
合わせるように分散している熱接着性繊維の熱融着によ
って仮固定されることになる。尚、加熱に際しては不織
布（１３）の粉体（１４）の散布された側から所定温度
の熱風を吹き付けると共に反対側からサクション（１７
）によって吸引すれば、熱が不織布（１３）内を加熱側
から吸引側へとスピーデイ−に通過し熱の伝導効率がよ
くなる。As mentioned above, powder (
14) are widely distributed. Similarly, thermal adhesive fibers are also dispersed between the constituent fibers of the nonwoven fabric (13) so as to be adjacent to the powder (14). Therefore, by heating the nonwoven fabric (13), the powder (14) is temporarily fixed by thermal fusion of the heat-adhesive fibers dispersed adjacent to the powder (14). Become. When heating, hot air at a predetermined temperature is blown from the side of the nonwoven fabric (13) on which the powder (14) has been sprinkled, and suction (17) is blown from the opposite side.
), heat passes quickly through the nonwoven fabric (13) from the heating side to the suction side, improving heat conduction efficiency.
尚、本発明でいう仮固定とは、超音波振動の際に飛散し
ない程度に粉体が付着していればよく、手で擦れば落ち
る程度であってもよい。勿論完全に付着していてもよい
。Incidentally, the term "temporary fixation" as used in the present invention means that the powder may be attached to such an extent that it will not be scattered during ultrasonic vibration, or may be such that it will fall off when rubbed by hand. Of course, it may be completely attached.
次いで、第１図及び第４図に示すように上記の如く粉体
（１４）を仮固定した不織布（１３）に熱可塑性繊維を
含む表層材（１２）を積層する。Next, as shown in FIGS. 1 and 4, a surface layer material (12) containing thermoplastic fibers is laminated on the nonwoven fabric (13) to which the powder (14) has been temporarily fixed as described above.
不ｍ布（１３）に積層される表層材（１２）は、不織布
てあれば特に限定されず、水流絡合不織布、ニートルパ
ンチ不織布、ポイントシール不織布など自由に選択して
使用することができる。不織布の構成繊維としては、後
の工程で周囲を超音波融着するため、超音波により融着
し易いポリエチレン、ポリプロピレン、ポリアミドなど
の熱可塑性樹脂より成る繊維がよい。また、不織布にお
ける熱可塑性繊維の含有量は少なくとも３０％以上であ
るのがシール強度という点から望ましい。The surface layer material (12) to be laminated on the non-woven fabric (13) is not particularly limited as long as it is a non-woven fabric, and can be freely selected and used such as hydroentangled non-woven fabric, neatle-punch non-woven fabric, point seal non-woven fabric, etc. . The constituent fibers of the nonwoven fabric are preferably fibers made of thermoplastic resin such as polyethylene, polypropylene, polyamide, etc., which are easily fused by ultrasonic waves, since the periphery is ultrasonically fused in a later step. Further, from the viewpoint of sealing strength, it is desirable that the content of thermoplastic fibers in the nonwoven fabric be at least 30% or more.
次に、第１図及び第５図に示すように、粉体（１４）を
仮固定した不織布（１３）に表層材（１２）を積層し、
この積層体を超音波ホーン（１６）と金型（１５）との
間に挟んだ状態で超音波によりシールかつ溶断する。Next, as shown in FIGS. 1 and 5, the surface material (12) is laminated on the nonwoven fabric (13) to which the powder (14) is temporarily fixed,
This laminate is sandwiched between an ultrasonic horn (16) and a mold (15) and sealed and fused using ultrasonic waves.
超音波による溶断及びシールは、表層材（１２）を、表
面が平坦な柱状の超音波ホーン（１６）と筒状で一方の
先端が刃状となっている金型（１５）との間に挟み、加
圧３．０〜４ 、０ ｋｇ、発振０．４〜０．７秒の超
音波条件で超音波融着することによって行なう。このと
き、表層材（１２）の刃状の金型（１５）と表面が平坦
な超音波ホーン（１６）との間に挟まれた部分は、超音
波振動によって発熱し、超音波融着される。同時に切断
されることになる。また、超音波振動によって発熱する
部分は、表層材（１２）の刃状の金型（１５）と表面が
平坦な超音波ホーン（１６）との閑に挟まれた部分に限
られるため、周辺に波及することもない。このため、そ
のシール部分は線状となり、フィルム状となることはな
い。この結果、当該粉体封入シー） （１１）の周縁（
２０）には、第６図及び第７図に示すように、シール部
分が線状に存在することになり、人体の皮膚に適用する
場合でも肌に引掛りや当りがない。又、金型が刃状であ
るため、粘着防止用の離型紙などが一緒に積層されてい
ても、同時に切断することができる。Cutting and sealing using ultrasonic waves involves placing the surface material (12) between a columnar ultrasonic horn (16) with a flat surface and a cylindrical mold (15) with one end shaped like a blade. Ultrasonic welding is carried out under ultrasonic conditions of pinching, applying pressure of 3.0 to 4.0 kg, and oscillation of 0.4 to 0.7 seconds. At this time, the portion of the surface material (12) sandwiched between the blade-shaped mold (15) and the ultrasonic horn (16) with a flat surface generates heat due to ultrasonic vibration and is ultrasonically fused. Ru. They will be disconnected at the same time. In addition, the part that generates heat due to ultrasonic vibration is limited to the part of the surface material (12) that is sandwiched between the blade-shaped mold (15) and the flat-surfaced ultrasonic horn (16). There is no ripple effect. Therefore, the sealed portion is linear and not film-like. As a result, the periphery (
20), as shown in FIGS. 6 and 7, the seal portion exists in a linear shape, and even when applied to the skin of a human body, it does not catch or hit the skin. Moreover, since the mold is blade-shaped, even if release paper for preventing adhesion is laminated together, it can be cut at the same time.
尚、刃状の金型（１５）の形状は、予定するシートの形
状に応じて円周状、楕円形状、卵形状など適宜変更する
ことができる。The shape of the blade-shaped mold (15) can be changed as appropriate, such as a circumferential shape, an elliptical shape, an egg shape, etc., depending on the shape of the intended sheet.
尚、本発明の粉体封入シー） （１１）の製造に際して
は、第１図に示すように、連続したシート状の表層材（
１２）と同じく連続したシート状であって熱可塑性繊維
を含む不織布（１３）とを用い、これら不織布（１３）
及び表層材（１２）をコンベア（１８）上を移動させつ
つ、これら不織布（１３）及び表層材（１２）に、粉体
（１４）の散布、加熱による粉体（１４）の不織布（１
３）への仮固定、不織布（１３）及び表層材（１２）周
縁のシール、溶断といった処理を施すようにしてもよい
。In addition, when manufacturing the powder-filled sheet (11) of the present invention, as shown in FIG. 1, a continuous sheet-like surface material (
Similar to 12), a continuous sheet-like nonwoven fabric (13) containing thermoplastic fibers is used, and these nonwoven fabrics (13)
While moving the surface layer material (12) on the conveyor (18), the powder (14) is sprinkled onto the nonwoven fabric (13) and the surface layer material (12), and the nonwoven fabric (1) is coated with the powder (14) by heating.
3), temporary fixation to the non-woven fabric (13) and surface layer material (12), sealing and fusing of the periphery of the non-woven fabric (13) and the surface material (12) may be performed.
又、バッチ式で粉体封入シートを１つづつ製造するよう
にしてもよい。Alternatively, the powder-filled sheets may be manufactured one by one in a batch process.
（実施例）
以下、本発明の皮膚用バッドを実施例に従って詳細に説
明する。(Examples) Hereinafter, the skin pad of the present invention will be described in detail according to Examples.
ポリプロピレンを芯成分とし、ポリエチレンを鞘成分と
する芯鞘型複合繊維「繊度２デニール、繊維長５１ｍ＊
Ｊ （熱可塑性繊維）からなる繊維ウェアに、ニード
ルパンチ処理を施し、目付６０ｇ／ｍ２のニードルパン
チ不織布（表層材）を作成する。−方、ポリエステルを
芯成分とし、ポリエチレンを鞘成分とする芯鞘型複合繊
維（熱接着性繊維）「繊度２デニール、繊維長５１ＩＩ
ＩＩＩＩ」からなる繊維ウェアを熱処理して、繊維相互
をポリエチレン成分によって結合した厚さ３．０ｍｍ、
目付２０ｇ／ｍ２の嵩高な熱融着不織布を作成した。Core-sheath type composite fiber with polypropylene as the core component and polyethylene as the sheath component "Fineness 2 denier, fiber length 51m*
Fiber clothing made of J (thermoplastic fiber) is subjected to needle punching treatment to create a needle punched nonwoven fabric (surface layer material) with a basis weight of 60 g/m2. - On the other hand, core-sheath type composite fiber (thermal adhesive fiber) with polyester as the core component and polyethylene as the sheath component "Fineness 2 denier, fiber length 51II"
3.0 mm thick fabric made by heat-treating the fiber wear made of "III" and bonding the fibers together with a polyethylene component.
A bulky heat-sealable nonwoven fabric with a basis weight of 20 g/m2 was prepared.
次いで、前記ニードルパンチ不織布に熱融着不織布を積
層し、この熱融着不織布上に活性炭粉末１００ｇを散布
した後、活性炭粉末の散布面に１２０℃の熱風を吹き付
けると共に、ニードルパンチ不織布側からサクションを
行って、活性炭粉末を熱融着不織布内部及び表面に分散
させると共に、同不織布を構成する芯鞘型複合繊維のポ
リエチレン成分の熱融着によって仮固定する。Next, a heat-sealable nonwoven fabric is laminated on the needle-punched nonwoven fabric, and 100 g of activated carbon powder is sprinkled on the heat-sealed nonwoven fabric. Hot air at 120° C. is blown onto the surface on which the activated carbon powder is sprayed, and suction is applied from the side of the needle-punched nonwoven fabric. The activated carbon powder is dispersed inside and on the surface of the heat-sealable nonwoven fabric, and the polyethylene component of the core-sheath composite fibers constituting the nonwoven fabric is temporarily fixed by heat-sealing.
次いで、粉末を散布した不織布上に前述したものと同し
ニートルパンチ不織布を積層し、この積層体を、直径１
４ｃｍの円柱状の超音波ホーンと直径１０ｃｍの円筒状
で一方端が円周状の刃となっている金型の間に挟み、直
径１０ｃｍの円形に切断すると共に、加圧３ｋｇ、発振
０．４秒の超音波条件で、周囲を超音波融着し粉体封入
シートを得た。Next, the same needle-punched nonwoven fabric as described above is laminated on the powder-sprinkled nonwoven fabric, and this laminated body has a diameter of 1
It was sandwiched between a 4 cm cylindrical ultrasonic horn and a 10 cm diameter cylindrical mold with a circumferential blade at one end, and was cut into a 10 cm diameter circle while applying pressure of 3 kg and oscillation of 0. The periphery was ultrasonically fused under ultrasonic conditions for 4 seconds to obtain a powder-encapsulated sheet.
この際、超音波振動による活性炭粉末の飛散は起こらな
かった。また、積層体の金型の刃が当接する部分のみが
融着した。At this time, the activated carbon powder did not scatter due to ultrasonic vibration. Further, only the portion of the laminate that was in contact with the mold blade was fused.
（発明の効果）
上記構成を備えたことにより、本発明の粉体耐大シート
の製造方法によれば、シール工程に先だって、不織布に
散布した粉体を同不織布に含まれる熱接着性繊維の熱融
着によって不織布に仮固定するようにしたため、超音波
によりシールかつ溶断するときに、超音波振動により粉
体が周囲に飛散することがなく、効率的に切断及びシー
ルを行うことができる。(Effects of the Invention) With the above configuration, according to the method for producing a large powder-resistant sheet of the present invention, the powder sprinkled on the nonwoven fabric is applied to the heat-adhesive fibers contained in the nonwoven fabric prior to the sealing process. Since it is temporarily fixed to the nonwoven fabric by thermal fusion, when sealing and cutting by ultrasonic waves, the powder is not scattered around due to ultrasonic vibration, and cutting and sealing can be performed efficiently.
また、この方法によれば、超音波融着によってシートの
周縁をシールかつ溶断するようにしたため、超音波融着
によってフィルム化し硬化する融着部分の面積が小さく
、そのシール部分は該シートの周縁に線状に存在するこ
とになる。このため、人体の皮膚に適用する場合でも肌
に引掛りや当りがない０例えば、この方法によって顔面
に使用するマスクを作った場合、周縁が顔面に当たって
も不快感を生じることがない。In addition, according to this method, since the periphery of the sheet is sealed and fused by ultrasonic fusion, the area of the fused portion that is formed into a film and hardened by ultrasonic fusion is small, and the sealed portion is located at the periphery of the sheet. It will exist in a linear manner. Therefore, even when applied to the skin of a human body, it does not catch or hit the skin. For example, when a mask for use on the face is made by this method, even if the peripheral edge hits the face, it will not cause discomfort.
第１図は本発明の粉体封入シートを連続的に製造する各
装置を模式的に示した側面図、第２図は不織布状に粉体
を散布している状態を模式的に示した要部拡大断面図、
第３図は粉体を散布した不織布を加熱して、粉体を不織
布に仮固定している状態を模式的に示した要部拡大断面
図、第４図は不織布に表層材を積層した状態を模式的に
示した要部拡大断面図、第５図は表層材を超音波によっ
てシールかつ溶断している状態を模式的に示す要部拡大
断面図、第６図は本発明の方法によって製造された粉体
封入シートを示す拡大斜視図、第７図は同じく要部拡大
断面図、第８図は従来の方法によって製造された粉体封
入シートを模式的に示す要部拡大断面図である。
符号の説明
（１２）・・・表層材、 （１３）・・・不織布、（
１４）・−・粉体、 （１５）・・・金型、（１
６）・・・超音波ホーン。Fig. 1 is a side view schematically showing each device for continuously manufacturing the powder-encapsulated sheet of the present invention, and Fig. 2 is a schematic side view showing the state in which powder is being spread on a nonwoven fabric. Enlarged sectional view,
Figure 3 is an enlarged sectional view of the main part schematically showing a state in which the nonwoven fabric on which powder has been sprinkled is heated and the powder is temporarily fixed to the nonwoven fabric, and Figure 4 is a state in which the surface layer material is laminated on the nonwoven fabric. FIG. 5 is an enlarged cross-sectional view of the main part schematically showing the state in which the surface material is sealed and fused by ultrasonic waves. FIG. FIG. 7 is an enlarged sectional view of the main part, and FIG. 8 is an enlarged sectional view of the main part schematically showing the powder encapsulation sheet manufactured by the conventional method. . Explanation of symbols (12)...Surface material, (13)...Nonwoven fabric, (
14)...Powder, (15)...Mold, (1
6)...Ultrasonic horn.
Claims (1)
いで加熱することにより粉体を嵩高な不織布に仮固定し
、次いで熱可塑性繊維を含む表層材を積層し、この積層
体を超音波ホーンと刃状の金型との間に挟んで超音波に
よりシールかつ溶断することを特徴とする粉体封入シー
トの製造方法。Powder is sprinkled on a bulky nonwoven fabric containing thermoadhesive fibers, and then heated to temporarily fix the powder to the bulky nonwoven fabric. Next, a surface material containing thermoplastic fibers is laminated, and this laminate is subjected to ultrasonic waves. A method for manufacturing a powder-filled sheet, which comprises sandwiching the sheet between a horn and a blade-shaped mold, sealing it using ultrasonic waves, and cutting it by melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2296347A JP2964014B2 (en) | 1990-10-31 | 1990-10-31 | Manufacturing method of powder encapsulated sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2296347A JP2964014B2 (en) | 1990-10-31 | 1990-10-31 | Manufacturing method of powder encapsulated sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04168034A true JPH04168034A (en) | 1992-06-16 |
| JP2964014B2 JP2964014B2 (en) | 1999-10-18 |
Family
ID=17832376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2296347A Expired - Fee Related JP2964014B2 (en) | 1990-10-31 | 1990-10-31 | Manufacturing method of powder encapsulated sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2964014B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012117946A1 (en) * | 2011-03-01 | 2012-09-07 | 株式会社ニフコ | Cutting and welding device, and fuel filter |
| CN107009639A (en) * | 2017-04-28 | 2017-08-04 | 东莞快裕达自动化设备有限公司 | Inserting piece device of folding mask |
| CN112172183A (en) * | 2020-09-27 | 2021-01-05 | 胶州市硕通针织有限公司 | Ear belt installation gauze mask processingequipment |
| FR3132222A1 (en) * | 2022-02-02 | 2023-08-04 | Ouvry | Process for manufacturing a decontamination wipe and corresponding wipe |
-
1990
- 1990-10-31 JP JP2296347A patent/JP2964014B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012117946A1 (en) * | 2011-03-01 | 2012-09-07 | 株式会社ニフコ | Cutting and welding device, and fuel filter |
| JP2012179790A (en) * | 2011-03-01 | 2012-09-20 | Nifco Inc | Fusing and welding method, and fuel filter |
| CN107009639A (en) * | 2017-04-28 | 2017-08-04 | 东莞快裕达自动化设备有限公司 | Inserting piece device of folding mask |
| CN112172183A (en) * | 2020-09-27 | 2021-01-05 | 胶州市硕通针织有限公司 | Ear belt installation gauze mask processingequipment |
| FR3132222A1 (en) * | 2022-02-02 | 2023-08-04 | Ouvry | Process for manufacturing a decontamination wipe and corresponding wipe |
| WO2023148249A1 (en) * | 2022-02-02 | 2023-08-10 | Ouvry, Sas | Method for manufacturing a decontamination wipe, and corresponding wipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2964014B2 (en) | 1999-10-18 |
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