JPS6385160A - Method for bonding nonwoven fabrics - Google Patents

Method for bonding nonwoven fabrics

Info

Publication number
JPS6385160A
JPS6385160A JP61222197A JP22219786A JPS6385160A JP S6385160 A JPS6385160 A JP S6385160A JP 61222197 A JP61222197 A JP 61222197A JP 22219786 A JP22219786 A JP 22219786A JP S6385160 A JPS6385160 A JP S6385160A
Authority
JP
Japan
Prior art keywords
nonwoven fabric
fused
bag
nonwoven fabrics
joining
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.)
Pending
Application number
JP61222197A
Other languages
Japanese (ja)
Inventor
山本　和厚
敬博 浅倉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP61222197A priority Critical patent/JPS6385160A/en
Publication of JPS6385160A publication Critical patent/JPS6385160A/en
Pending legal-status Critical Current

Links

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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • 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
    • B29C66/73921—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 characterised by the materials of both parts being thermoplastics
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • 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
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Package Closures (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は２枚の重ね合わされた熱可塑性合成繊維よりな
る不織布を接合する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for joining two nonwoven fabrics made of superimposed thermoplastic synthetic fibers.

〔従来の技術と発明が解決しようとする問題点〕従来か
らハンドバック、靴、ヘルメット等の服飾雑貨、衣料、
人形、精密器械等はその輸送又は販売に際して製品の保
護のために袋の中に入れられている。[Problems to be solved by conventional technology and inventions] Traditionally, handbags, shoes, helmets, and other fashion accessories, clothing,
Dolls, precision instruments, etc. are placed in bags to protect them during transportation or sale.

従来この種の袋としては紙やプラスチックフィルムが用
いられてきたが、近来不織布、特に乾式不織布から成る
袋が用いられだしている。これは不織布であれば通気性
があって黴が発生しにくい、強力があるために使用中に
破れることなく製品に疵をつきにくい、さらに包装材料
として高級感が与えられるからである。不織布を袋状に
するための方法としては切断熱融着、縫製、接着剤処理
等の手段が用いられている。これら手段の中、切断熱融
着は接合部が破れやすいという問題を有し、縫製すれば
接合を完全に行えることができるが、コストがかかる問
題を有し、接着剤処理を行えば接着剤の付着した部分が
硬化するという問題点を有する。Conventionally, paper or plastic film has been used for this type of bag, but recently bags made of nonwoven fabric, particularly dry nonwoven fabric, have begun to be used. This is because non-woven fabrics are breathable and do not easily generate mold, are strong so they do not tear during use and are less likely to cause scratches on the product, and also give a sense of luxury as a packaging material. As a method for forming a nonwoven fabric into a bag shape, methods such as cutting, heat-sealing, sewing, and treatment with an adhesive are used. Among these methods, cutting and heat-sealing has the problem that the joint part is easily torn, and sewing can achieve a complete joint, but it is expensive, and if adhesive processing is used, the adhesive The problem is that the parts to which it is attached harden.

本発明は従来公知の不織布間の接合方法の有する前述の
問題点を解決して強い接合力を有すると共に風合硬化し
ない接合部を得ることができる接合方法を提供すること
を目的とする。An object of the present invention is to provide a bonding method that solves the above-mentioned problems of the conventionally known bonding methods between nonwoven fabrics and can provide a bonded portion that has a strong bonding force and is not hardened by hand.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の前述の目的は、２枚の重ね合わされた熱可塑性
合成繊維よりなる不織布を接合するに際し、接合部にお
いて加熱された切断刃で切断すると同時に切断部を熱融
着させる工程、接合部近辺を接合部に沿って不連続的に
融着部を形成させる工程を含むことを特徴とする不織布
間の接合方法によって達成される。The above-mentioned object of the present invention is to, when joining two non-woven fabrics made of superimposed thermoplastic synthetic fibers, a step of cutting with a heated cutting blade at the joining part and heat-sealing the cut part at the same time; This is achieved by a method for joining nonwoven fabrics, which is characterized by including the step of forming a fused portion discontinuously along the joined portion.

以下本発明による接合方法を用いて形成された不織布製
袋と本発明による接合方法を実施するための装置の一例
を示す添付図を参照して本発明を詳述する。The present invention will be described in detail below with reference to the accompanying drawings showing an example of a nonwoven fabric bag formed using the joining method according to the present invention and an apparatus for carrying out the joining method according to the present invention.

第１図に本発明による接合方法を用いて形成された不織
布製袋ｌの１例を示す。不織布製袋１は一枚の不織布を
底部５で２つ折りし、上層不織布２ａと下層不織布２ｂ
の端部を熱融着切断部３と不連続融着部４で形成しであ
る。前記熱融着切断部３は上層不織布２ａと下層不織布
２ｂを合せてヒートカットすることによって得られ、端
面を一様に接着して袋の内外を確実に隔離すると共に端
面の外観を綺麗にする。FIG. 1 shows an example of a nonwoven fabric bag 1 formed using the joining method according to the present invention. The nonwoven fabric bag 1 is made by folding a sheet of nonwoven fabric in half at the bottom 5, and then forming an upper layer nonwoven fabric 2a and a lower layer nonwoven fabric 2b.
The end portions are formed by a thermally fused cut portion 3 and a discontinuously fused portion 4. The heat-sealed cut portion 3 is obtained by heat-cutting the upper nonwoven fabric 2a and the lower nonwoven fabric 2b, and uniformly adheres the end surfaces to reliably isolate the inside and outside of the bag, as well as to improve the appearance of the end surfaces. .

第２図は第１閏でＡで示した接合部分を拡大して示す平
面図であり、第３図は第２図の線ｍ−ｍによる断面図で
ある。第２図に示すように不連続融着部４は２列の融着
部４ａ　、４ｂが不連続状態で形成されている。すなわ
ちそれぞれの列において隣接する融着部４ａ、４ｂの間
には非融着部６ａ　、６ｂが配置されており、融着部４
ａ　、　４ｂは第３図に示すように圧縮されている。本
発明による接合方法を用いて作られた不織布製袋の接合
部では融着部４ａ　、４ｂによって２層の不織布２ａ、
２ｂが接合され且つ融着部４ａ　、４ｂの間に非融着部
６ａ、６ｂが配置されているので、第３図において矢印
Ｂで示す方向に力が加えられて２層の不織布２ａ、２ｂ
が離されようとした時に非融着部６ａ、６ｂの存在によ
って引張伸度の増大を招キー、その結果引離し抵抗力が
大となる。FIG. 2 is an enlarged plan view showing the joint portion indicated by A in the first leap, and FIG. 3 is a sectional view taken along line m--m in FIG. As shown in FIG. 2, the discontinuously fused portion 4 is formed by discontinuously forming two rows of fused portions 4a and 4b. That is, non-fused parts 6a and 6b are arranged between adjacent fused parts 4a and 4b in each row, and the fused parts 4
a and 4b are compressed as shown in FIG. At the joint of the nonwoven fabric bag made using the joining method according to the present invention, the fused parts 4a and 4b form two layers of nonwoven fabric 2a,
2b are joined and the non-fused parts 6a, 6b are arranged between the fused parts 4a, 4b, so that force is applied in the direction shown by arrow B in FIG. 3, and the two layers of nonwoven fabrics 2a, 2b
When the material is about to be separated, the presence of the non-fused parts 6a and 6b causes an increase in tensile elongation, resulting in an increase in resistance to separation.

第１図〜第３図に示した実施例においては不連続融着部
４は２列の融着部４ａ　、４ｂによって形成されている
が１列でもよく、あるいは３列以上であってもよい。一
般に薄い不織布を用いた場合には１列〜２列の融着部を
設け、厚い不織布を用いた場合には１列の融着部を設け
るとよい。２列の融着部を設けた場合には、第２図に示
すように、融着部４ａ　、４ｂを平行に同位相で並べて
もよく、又千鳥状に並べてもよい。融着部４ａ　、４ｂ
の個々の大きさは不織布製袋の用いられる用途によって
任意に定めればよいが、長辺を０．５〜５　ｍ　／　ｍ
程度、短辺を０．５　ｍ　／　ｍ　〜２．０　ｍ　／　
ｍ程度にすればよい。In the embodiment shown in FIGS. 1 to 3, the discontinuous welded portion 4 is formed by two rows of welded portions 4a and 4b, but it may be one row, or three or more rows. . Generally, when a thin nonwoven fabric is used, one to two rows of fused parts are provided, and when a thick nonwoven fabric is used, one row of fused parts is provided. When two rows of welded parts are provided, the welded parts 4a and 4b may be arranged in parallel and in the same phase, as shown in FIG. 2, or may be arranged in a staggered manner. Fusion parts 4a, 4b
The individual size of the non-woven bag may be arbitrarily determined depending on the purpose for which the non-woven bag is used, but the long side should be 0.5 to 5 m/m.
degree, short side 0.5 m/m ~ 2.0 m/
It should be about m.

前記不連続融着部４を形成する方法としては、超音波、
高周波あるいはヒートシール等を用いることができる。The method for forming the discontinuous fused portion 4 includes ultrasonic waves,
High frequency, heat sealing, etc. can be used.

超音波は各種素材から成る不織布を接合するのに用いる
ことができ、塩化ビニル系あるいはポリエチレン系等の
素材から成る不織布に対しては高周波を用いることがで
きる。又２成分の素材を混合して成る不織布の場合には
ヒートシールによって不連続融着部を形成することがで
きる。Ultrasonic waves can be used to bond nonwoven fabrics made of various materials, and high frequencies can be used for nonwoven fabrics made of vinyl chloride-based or polyethylene-based materials. In the case of a nonwoven fabric made of a mixture of two component materials, discontinuously fused portions can be formed by heat sealing.

本発明による接合方法を適用することができる不織布と
しては各種の素材から成る不織布を用いることができ、
不織布の製造方法についても特に限定されるものではな
い。但し用途から見て通常１５ｇ／ｎｆ〜１００　ｇ　
／　ｒｄの目付の不織布、より好ましくは２０ｇ／ｒｄ
〜５０　ｇ　／　ｒｄの目付の不織布が好んで用いられ
る。As the nonwoven fabric to which the joining method according to the present invention can be applied, nonwoven fabrics made of various materials can be used.
There are no particular limitations on the method for producing the nonwoven fabric. However, considering the usage, it is usually 15g/nf to 100g.
/rd nonwoven fabric, more preferably 20g/rd
Nonwoven fabrics with a basis weight of ~50 g/rd are preferably used.

次に第４図を参照して本発明による接合方法を実施する
ための装置の一例を説明する。第４図において幅１ｍの
不織布２がロール１０から巻戻され、２つ折部材１１を
経て２つ折にされ、矢印Ｃの方向に連続的供給される。Next, an example of an apparatus for carrying out the joining method according to the present invention will be explained with reference to FIG. In FIG. 4, a nonwoven fabric 2 having a width of 1 m is unwound from a roll 10, folded into two through a bifold member 11, and continuously fed in the direction of arrow C.

２つ折にされるので５で示す部分が袋１の底部となる。Since it is folded in two, the part indicated by 5 becomes the bottom of bag 1.

２つ折の不織布２はダンサ−ローラ装置１２に通され、
ダンサ−ローラ１２ａが隣接する２本の不織布支持ロー
ラ１２ｂの間を下降することによって不織布２を一時的
に貯留する。後述の不連続融着部と熱融着切断部の形成
は不織布２を停止状態にして行うので、前記ダンサ−ロ
ーラ装置１２は連続してロール１０から供給される不織
布を貯留してそれより下流の不織布を停止させるのに役
立つ。次に不織布２は不連続融着加工部の支持台１３上
に進められ、不織布２の上方から例えば第２図に示すよ
うな不連続の融着部を２組手行して形成することができ
るように配置された超音波発振端部をその周面に有する
ローラ１４　（超音波ミシンヘッド）が不織布を押付け
ながら横切って矢印りの方向に移動する。その結果不織
布２の上に不連続融着部４が形成される。１つの不連続
融着部４が形成されると、不織布２は袋の幅だけ移動し
て停止し、再度ローラ１４が作動して次の不連続融着部
４を形成し、その作動が順次繰返えされて袋の幅に相当
する間隔をあけて複数の不連続融着部４が形成される。The bifold nonwoven fabric 2 is passed through a dancer-roller device 12,
The dancer roller 12a moves down between two adjacent nonwoven fabric support rollers 12b to temporarily store the nonwoven fabric 2. Since the formation of discontinuously fused parts and thermally fused cut parts, which will be described later, is carried out with the nonwoven fabric 2 in a stopped state, the dancer-roller device 12 continuously stores the nonwoven fabric supplied from the roll 10 and stores it downstream. Helps stop non-woven fabrics. Next, the nonwoven fabric 2 is advanced onto the support table 13 of the discontinuously fused part, and two sets of discontinuously fused parts as shown in FIG. 2 are manually formed from above the nonwoven fabric 2. A roller 14 (ultrasonic sewing machine head) having an ultrasonic oscillating end on its circumferential surface arranged so as to be able to generate ultrasonic waves moves across the nonwoven fabric in the direction indicated by the arrow while pressing it. As a result, discontinuous fused portions 4 are formed on the nonwoven fabric 2. When one discontinuously fused portion 4 is formed, the nonwoven fabric 2 moves by the width of the bag and then stops, and the roller 14 operates again to form the next discontinuously fused portion 4, and the operation continues in sequence. This process is repeated to form a plurality of discontinuous welded parts 4 at intervals corresponding to the width of the bag.

第４図においては複数の不連続融着部は４ｔ、４ｒｉで
示される。なお前述のように不連続融着部４は両側の袋
用に２組形成されている。次に不織布２はヒートカッタ
１６によって前記２組の不連続融着部４の間を切断され
、同時に熱融着され、これがそれぞれの不連続融着部４
毎に行われ袋１が形成される。袋１はコンベア１７によ
って第４図において左方に送られ、受台１８上に積重ね
られる。In FIG. 4, the plurality of discontinuous welded portions are indicated by 4t and 4ri. As mentioned above, two sets of discontinuously fused parts 4 are formed for the bags on both sides. Next, the nonwoven fabric 2 is cut between the two sets of discontinuously fused portions 4 by a heat cutter 16, and is simultaneously heat fused.
The bag 1 is formed every time. The bags 1 are conveyed to the left in FIG. 4 by a conveyor 17 and stacked on a pedestal 18.

〔実施例〕〔Example〕

本発明による接合方法の実施例を示し、併せて比較例と
の接合部の強力比較をなす。An example of the joining method according to the present invention will be shown, and the strength of the joined portion will be compared with a comparative example.

実施■土 ポリアミドスパンボンド不織布（目付４０ｇ／ｄ）を本
発明による接合方法で接合した袋を実施例１とし、単に
ヒートカッタで接合した袋を比較例１とする。それぞれ
の接合部に沿って５ａ１１巾の矩形状の試料を作り引張
速度１０　ｃｍ／ｍｉｎで接合部の引張強伸度を測定し
た（試料数１０）。得られた結果を第１表に示す。Example 1 is a bag in which soil polyamide spunbond nonwoven fabric (basis weight: 40 g/d) was bonded by the bonding method of the present invention, and Comparative Example 1 is a bag in which the bags were simply bonded using a heat cutter. A rectangular sample with a width of 5a11 was prepared along each joint, and the tensile strength and elongation of the joint was measured at a tensile speed of 10 cm/min (10 samples). The results obtained are shown in Table 1.

第１表 第１表より実施例１の方が強度はや＼まさる程度である
が、伸度が大幅に増加することが判る。From Table 1, it can be seen that the strength of Example 1 is slightly higher, but the elongation is significantly increased.

ス１１生ｌ 実施例１に対して素材をポリエステル８０％、ポリプロ
ピレン２０％にする以外は同一にして実施例２と比較例
２とし実施例１と同様に強伸度を測定した。得られた結
果を第２表に示す。Example 2 and Comparative Example 2 were made the same as Example 1 except that the materials were changed to 80% polyester and 20% polypropylene, and the strength and elongation were measured in the same manner as in Example 1. The results obtained are shown in Table 2.

第２表 第２表より実施例２の方が強度・伸度ともに増加してい
ることが判る。From Table 2, it can be seen that Example 2 has increased both strength and elongation.

実施貫主 実施例１、比較例１の袋をそれぞれ２５枚用意し、５人
の実験者にそれぞれ５枚づつ手による引裂試験を行わせ
た。すなわち袋の口を持って袋をひろげ、その際実施例
１と比較例１のどちらの袋が強いかを判定させた。その
結果５人の実験者が全て本発明による接合方法を用いて
作られた実施例１の袋が強いと判定した。25 bags each of Example 1 and Comparative Example 1 were prepared, and 5 experimenters each performed a manual tear test on 5 bags each. That is, the participants held the opening of the bag and unfolded it, and at that time, they were asked to judge which bag, Example 1 or Comparative Example 1, was stronger. As a result, all five experimenters judged that the bag of Example 1 made using the joining method according to the present invention was strong.

以上の実施例を総合して考察するに、本発明による接合
方法を用いて形成された接合部は単に強度が上昇するだ
けでなく融着部間に非融着部が存在することにより引張
時の伸度が大きくなり、その結果実用上の強度が高くな
るものと考えられる。Comprehensively considering the above examples, it is clear that the joints formed using the joining method according to the present invention not only have an increased strength, but also have a non-welded part between the welded parts, so that they can withstand tensile strength. It is thought that the elongation of the material increases, and as a result, the practical strength increases.

〔発明の効果〕〔Effect of the invention〕

本発明による不織布間の接合方法は前述のように熱融着
切断部と不連続融着部とを並置した接合部を形成するこ
とができ、その結果強い接合力を有する接合部を得るこ
とができる。又融着部が不連続であるので不織布の風合
が硬くなることがなく、さらに切断部が熱融着されてい
るので外観的に綺麗であると共に、内容物が袋からこぼ
れることがない。As described above, the method for joining nonwoven fabrics according to the present invention can form a joint in which the thermally fused cut part and the discontinuously fused part are juxtaposed, and as a result, a joined part with strong joining force can be obtained. can. Furthermore, since the fused portions are discontinuous, the texture of the nonwoven fabric does not become stiff, and since the cut portions are heat fused, the bag has a clean appearance and the contents do not spill out of the bag.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による接合方法を用いて形成された不織
布製袋の一例を示す斜視図であり、第２図は第１図でＡ
で示した接合部分を拡大して示す平面図であり、第３図
は第２図の線ｍ−■による断面図であり、第４図は本発
明による接合方法を実施するための装置の一例を示す略
示平面図である。 １・・・不織布製袋、　　　　２・・・不織布、３・・
・熱融着切断部、　　４・・・不連続融着部、４ａ　、
４ｂ・・・融着部、　５・・・底部、５ａ　、５ｂ・・
・非融着部。FIG. 1 is a perspective view showing an example of a nonwoven fabric bag formed using the joining method according to the present invention, and FIG.
FIG. 3 is a cross-sectional view taken along line m-■ in FIG. 2, and FIG. 4 is an example of an apparatus for carrying out the joining method according to the present invention. FIG. 1...Non-woven fabric bag, 2...Non-woven fabric, 3...
・Thermal fusion cutting part, 4... Discontinuous fusion part, 4a,
4b...Fusion part, 5...Bottom part, 5a, 5b...
・Non-fused area.

Claims (1)

【特許請求の範囲】[Claims] １、２枚の重ね合わされた熱可塑性合成繊維よりなる不
織布を接合するに際し、接合部において加熱された切断
刃で切断すると同時に切断部を熱融着させる工程、接合
部近辺を接合部に沿って不連続的に融着部を形成させる
工程を含むことを特徴とする不織布間の接合方法。When joining 1 or 2 nonwoven fabrics made of overlapping thermoplastic synthetic fibers, a process of cutting with a heated cutting blade at the joint and heat-sealing the cut part at the same time; A method for joining nonwoven fabrics, comprising a step of discontinuously forming a fused portion.
JP61222197A 1986-09-22 1986-09-22 Method for bonding nonwoven fabrics Pending JPS6385160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61222197A JPS6385160A (en) 1986-09-22 1986-09-22 Method for bonding nonwoven fabrics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61222197A JPS6385160A (en) 1986-09-22 1986-09-22 Method for bonding nonwoven fabrics

Publications (1)

Publication Number Publication Date
JPS6385160A true JPS6385160A (en) 1988-04-15

Family

ID=16778664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61222197A Pending JPS6385160A (en) 1986-09-22 1986-09-22 Method for bonding nonwoven fabrics

Country Status (1)

Country Link
JP (1) JPS6385160A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016010037A1 (en) * 2014-07-16 2016-01-21 立川ブラインド工業株式会社 Pleat screen
JP2020152418A (en) * 2019-03-20 2020-09-24 ハウス食品グループ本社株式会社 Plastic film packaging bag and manufacturing method therefor and ultrasonic seal device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127295A (en) * 1975-04-22 1976-11-05 Seiji Tanaka Production of garment material comprising thermoplastic resin cloth or polymerized article of said resin and cotton

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127295A (en) * 1975-04-22 1976-11-05 Seiji Tanaka Production of garment material comprising thermoplastic resin cloth or polymerized article of said resin and cotton

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016010037A1 (en) * 2014-07-16 2016-01-21 立川ブラインド工業株式会社 Pleat screen
JP2016023422A (en) * 2014-07-16 2016-02-08 立川ブラインド工業株式会社 Pleated screen
TWI675961B (en) * 2014-07-16 2019-11-01 日商立川窗飾工業股份有限公司 Pleated curtain
JP2020152418A (en) * 2019-03-20 2020-09-24 ハウス食品グループ本社株式会社 Plastic film packaging bag and manufacturing method therefor and ultrasonic seal device

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