JPH0233484B2 - - Google Patents
Info
- Publication number
- JPH0233484B2 JPH0233484B2 JP57086989A JP8698982A JPH0233484B2 JP H0233484 B2 JPH0233484 B2 JP H0233484B2 JP 57086989 A JP57086989 A JP 57086989A JP 8698982 A JP8698982 A JP 8698982A JP H0233484 B2 JPH0233484 B2 JP H0233484B2
- Authority
- JP
- Japan
- Prior art keywords
- urethane foam
- fiber cotton
- fleece
- mixed
- mixed fiber
- 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.)
- Expired - Lifetime
Links
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 47
- 239000006260 foam Substances 0.000 claims description 47
- 229920000742 Cotton Polymers 0.000 claims description 44
- 239000000835 fiber Substances 0.000 claims description 44
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000011282 treatment Methods 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/502—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] by first forming a mat composed of short fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4358—Polyurethanes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
-
- 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
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- 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
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- 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
- B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
- B29K2311/10—Natural fibres, e.g. wool or cotton
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Nonwoven Fabrics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
【発明の詳細な説明】
本発明は、軟質ウレタンフオームと繊維綿とを
均一に混合させて成るフエルトを、フリース製造
機の使用を可能として連続的にかつ高能率に製造
し得る自動車内装材用フエルトの製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides felt for automobile interior materials that can be produced continuously and with high efficiency by using a fleece manufacturing machine, which is made by uniformly mixing soft urethane foam and fiber cotton. This invention relates to a felt manufacturing method.
従来、繊維綿に軟質ウレタンフオームを混入し
たフエルトは知られているが、これをフリース製
造機を使用して連続的に成形することは不可能で
あつた。すなわち、フリース製造機を使用できな
かつた技術的理由として次のことが挙げられる。 Conventionally, felts made by mixing soft urethane foam into fiber cotton have been known, but it has been impossible to continuously mold them using a fleece manufacturing machine. In other words, the following are the technical reasons why the fleece manufacturing machine could not be used.
(1) 繊維綿に混入するウレタンフオームの形状が
粒子状、太い棒状或いはフレーク状のものであ
り、その見掛比重又は形状において繊維綿と著
しく相違しているため、これを互いに絡み合わ
せることが困難であつた。(1) The shape of the urethane foam mixed in the fiber cotton is in the form of particles, thick rods, or flakes, and its apparent specific gravity or shape is significantly different from that of the fiber cotton, so it is difficult to entangle them with each other. It was difficult.
(2) フリース製造機は針歯を有する回転シリンダ
ーを回転させることによりウレタンフオームと
繊維綿を絡み合わせようとするものであるが、
重いウレタンフオームはフリース製造機の空間
室内に飛散し得ないで繊維綿と絡み合う前に下
方に落ちてしまい、繊維綿と分離した層を作つ
てしまうことになつていかにしても均一なミキ
シングができなかつた。(2) A fleece manufacturing machine attempts to intertwine urethane foam and fiber cotton by rotating a rotating cylinder with needle teeth.
The heavy urethane foam cannot be scattered into the space chamber of the fleece making machine and falls downwards before intertwining with the fiber cotton, creating a separate layer from the fiber cotton and making it difficult to mix evenly. I couldn't do it.
(3) 上記従来のように粉砕或いは太く裁断された
ウレタンフオームの場合、針歯の間からすり抜
け或いは太すぎて引掛りが困難であり、それゆ
えこれを空中に飛散させて繊維綿と絡み合わせ
ることは極めて至難で不可能に近いものであつ
た。(3) In the case of urethane foam that has been crushed or cut into thick pieces as in the above conventional method, it is difficult to slip through between the needle teeth or because it is too thick to be caught, so it is scattered in the air and intertwined with the fiber cotton. This was extremely difficult and almost impossible.
本発明の目的は、ウレタンフオーム若しくはウ
レタンフオームの屑を一辺が1.0mm以下の角柱状
に裁断することによりその見掛比重を低下させる
と共に、太さを繊維綿相当に類似させ、さらに従
来のフリース製造工程を変更することにより、フ
リース製造時に繊維綿と裁断されたウレタンフオ
ームとが層別に分離積層する現象を解消し、これ
ら繊維綿とウレタンフオームを均一に混合させて
成るフエルトをフリース製造機の使用を可能とし
て連続的かつ高能率に製造することができる方法
を提供することにある。 The purpose of the present invention is to reduce the apparent specific gravity of urethane foam or urethane foam waste by cutting it into a prismatic shape with a side of 1.0 mm or less, to make the thickness similar to that of fiber cotton, and to further improve By changing the manufacturing process, we have eliminated the phenomenon in which fiber cotton and cut urethane foam are separated and stacked layer by layer during fleece production, and the felt made by uniformly mixing these fiber cotton and urethane foam can be made into a fleece manufacturing machine. It is an object of the present invention to provide a method that can be used continuously and with high efficiency.
すなわち、本発明の方法は次の如き特徴ある条
件を満たすことにより所期のフエルト製品を簡易
な製造技術手段のもとで得ようとするものであ
る。その条件の第１は軟質ウレタンフオーム若し
くはその屑を裁断機により一辺が1.0mm以下の角
柱状に裁断して混合繊維綿と絡み合い易い形状に
成形することであり、第２はフリース製造機にお
いて外周面に針歯を有する回転シリンダーを回転
させ混合繊維綿と軟質ウレタンフオームとを該回
転シリンダーの針歯が上向に移動する側に投入す
ることにより、上述の極細状に裁断されたウレタ
ンフオームと混合繊維綿とを針歯に引掛けて細か
く開繊させつつ上方に運び空間内に均一に飛散さ
せて該ウレタンフオームと混合繊維綿とが容易に
絡み合うようにすることである。 That is, the method of the present invention attempts to obtain desired felt products using simple manufacturing techniques by satisfying the following characteristic conditions. The first condition is to cut the soft urethane foam or its waste into a prismatic shape with a side of 1.0 mm or less using a cutting machine and form it into a shape that is easy to intertwine with the mixed fiber cotton. By rotating a rotating cylinder with needle teeth on its surface and introducing the mixed fiber cotton and soft urethane foam into the side of the rotating cylinder where the needle teeth move upward, the urethane foam cut into the above-mentioned ultrafine shapes and The urethane foam and the mixed fiber cotton are hooked on the needle teeth, finely opened, carried upward, and uniformly scattered in the space, so that the urethane foam and the mixed fiber cotton are easily intertwined.
以下本発明の製造方法を第１図に示した概要図
に基づきさらに具体的に説明する。 The manufacturing method of the present invention will be explained in more detail below based on the schematic diagram shown in FIG.
すなわち、ホツパーフイダーＡ内へコツトン等
の天然繊維綿を80重量％、ポリエステル、アクリ
ル、ポリプロピレン等の化学合成繊維綿を20重量
％の割合で投入してホツパーフイダーＡの機構に
より開繊すると同時に均一に混合して混合繊維綿
ａを生成する。これをホツパー１を経て第１の搬
送機２上へ搬送速度に関連して一定量を落下させ
つつ第２の搬送機３上へ移送する。この第２の搬
送機３上で樹脂散布装置４によつて混合繊維綿ａ
上に例えば粉末ポリエチレンまたは短繊維状ポリ
エチレン等の熱可塑性樹脂接着剤ｂを重量比で20
〜35％（好ましくは25％）散布する。その後さら
にこれを第３の搬送機５上に移送する。この搬送
機５上に乗載されて移送する混合繊維綿ａ上へ一
辺が1.0mm以下の角柱状で長さが５〜30mmに裁断
された極細状の軟質ウレタンフオームｃを混合繊
維綿ａの重量に対して30％〜50％を落下させる。 That is, 80% by weight of natural fiber cotton such as cotton and 20% by weight of chemically synthesized fiber cotton such as polyester, acrylic, polypropylene, etc. are introduced into Hopper Feeder A, and the fibers are opened by the mechanism of Hopper Feeder A and mixed uniformly at the same time. to produce mixed fiber cotton a. This is transferred via the hopper 1 onto the first conveyor 2 and onto the second conveyor 3 while dropping a certain amount in relation to the conveyance speed. On this second conveyor 3, the mixed fiber cotton a is
Thermoplastic resin adhesive b such as powdered polyethylene or short fibrous polyethylene is added on top by a weight ratio of 20
Spread ~35% (preferably 25%). Thereafter, this is further transferred onto the third conveyor 5. An ultra-fine soft urethane foam c cut into a prismatic shape with a side of 1.0 mm or less and a length of 5 to 30 mm is placed on the mixed fiber cotton a to be transferred on the conveyor 5. Drop 30% to 50% of weight.
前記極細状の軟質ウレタンフオームｃは、焼却
処理される不良品又はウレタンモールド時に発生
する耳屑等の発泡された軟質ウレタンフオーム
c′を搬送機６により第１の裁断機７に送り、ここ
でまず一方向にスリツトして１mm程度の薄片状に
形成し、この薄片状に形成された軟質ウレタンフ
オームc″をさらに搬送機８を介して第２の裁断機
９に送り、1.0mm以下の極細状に裁断することに
より得られる。ここで得られた極細状の軟質ウレ
タンフオームｃは見掛比重及び形状が混合繊維綿
ａに非常に近いものとなる。 The ultra-fine soft urethane foam c is a foamed soft urethane foam such as defective products to be incinerated or shavings generated during urethane molding.
c' is sent to the first cutting machine 7 by the conveyor 6, where it is first slit in one direction to form a thin flake shape of about 1 mm. 8 to a second cutting machine 9 and cut into ultrafine pieces of 1.0 mm or less.The ultrafine soft urethane foam c obtained here has an apparent specific gravity and shape similar to that of mixed fiber cotton a. will be very close to.
次に樹脂接着剤ｂが散布された混合繊維綿ａと
極細状に裁断された軟質ウレタンフオームｃをフ
リース製造機Ｂ内へ供給する。このフリース製造
機Ｂは、空間室１２の入口部に外周面に針歯１０
を有する回転シリンダー１１を配置しこれを第１
図矢印で示す方向に回転させる。そして混合繊維
綿ａと軟質ウレタンフオームｃとを該回転シリン
ダー１１の針歯１０が上向に移動する側に投入す
る。これによつて、混合繊維綿ａと極細状の軟質
ウレタンフオームｃは針歯１０に引掛けられてさ
らに細かく開繊されつつ上方へ運ばれることによ
り空間室１２内へ均一に飛散し、互いに絡み合
う。この際に混合繊維綿ａより真比重の重い軟質
ウレタンフオームｃでも回転シリンダー１１の針
歯１０の上向きの移動と極細状に裁断された形状
とにより、見掛比重が軽くなつて下方に落下する
ことなく確実に針歯１０に引掛かつて空間室１２
内で上方に均一に飛散されることになり、一層良
好な絡み合いが行われる。空間室１２内における
極細の軟質ウレタンフオームｃのさらにそれ以上
の均一な飛散効果は、第２図に示した如く引掛り
が良好なように針歯１０の先端部分を進行方向に
折曲げて鉤状に形成することにより達成できる。
しかし、本発明において上述の針歯１０の形状は
は決定的に重要ではない。 Next, the mixed fiber cotton a sprinkled with the resin adhesive b and the soft urethane foam c cut into extremely fine pieces are fed into the fleece manufacturing machine B. This fleece manufacturing machine B has needle teeth 10 on the outer peripheral surface at the entrance of the space chamber 12.
A rotating cylinder 11 having a
Rotate in the direction shown by the arrow in the figure. Then, the mixed fiber cotton a and the soft urethane foam c are put into the rotating cylinder 11 on the side where the needle teeth 10 move upward. As a result, the mixed fiber cotton a and the ultra-fine soft urethane foam c are hooked onto the needle teeth 10 and are further spread finely and carried upward, thereby uniformly scattering into the space chamber 12 and intertwined with each other. . At this time, even though the soft urethane foam c has a true specific gravity heavier than the mixed fiber cotton a, its apparent specific gravity becomes lighter due to the upward movement of the needle teeth 10 of the rotating cylinder 11 and the shape cut into extremely fine pieces, and it falls downward. Once the space chamber 12 is caught on the needle tooth 10 without any
The particles are evenly scattered upward within the interior, resulting in even better intertwining. A more uniform scattering effect of the ultra-fine soft urethane foam c in the space chamber 12 can be obtained by bending the tip of the needle tooth 10 in the advancing direction so that the hook can be easily caught, as shown in FIG. This can be achieved by forming it into a shape.
However, in the present invention, the shape of the needle tooth 10 described above is not critically important.
このようにフリース製造機Ｂにおける針歯１０
を有する回転シリンダー１１の回転と極細状の軟
質ウレタンフオームｃの形状とにより、混合繊維
綿ａと極細状の軟質ウレタンフオームｃとの良好
な絡み合いが行なわれる。また、フリース製造機
Ｂにおいてその回転シリンダー１１の上部にはエ
アー吹込管１３が臨んでおり、すでに絡み合つた
状態のもの、又は絡み合わないで空間室１２内に
飛散している混合繊維綿ａと極細状の軟質ウレタ
ンフオームｃをもエアー吹込管１３から吹込まれ
るエアーによつて強制的に出口側に配置した回転
網シリンダー１４，１４に吹着され、これにより
混合繊維綿ａと極細状に裁断された軟質ウレタン
フオームｃが均一に混合された所定厚のフリース
ｄが形成される。 In this way, the needle teeth 10 in fleece making machine B
Due to the rotation of the rotating cylinder 11 and the shape of the ultra-fine soft urethane foam c, the mixed fiber cotton a and the ultra-fine soft urethane foam c are well entangled. In addition, in the fleece manufacturing machine B, an air blowing pipe 13 faces the upper part of the rotary cylinder 11, and mixed fiber cotton a that is already entangled or that is scattered in the space chamber 12 without being entangled. The ultra-fine soft urethane foam c is also forcibly blown onto the rotating mesh cylinders 14, 14 placed on the outlet side by the air blown from the air blowing pipe 13, and as a result, the mixed fiber cotton a and the ultra-fine form A fleece d having a predetermined thickness is formed by uniformly mixing the soft urethane foam c cut into pieces.
フリース製造機Ｂから送出されたフリースｄは
搬送機１５により加熱炉Ｃ内に通過させる。この
搬送機１５は金網搬送ベルトにより形成されて通
気性を有する。また加熱炉Ｃ内は隔壁により数個
の室１６に区分され、その各室１６内に電気、加
熱油等を熱源とする加熱管１７を備えると共に、
加熱管１７と金網搬送ベルトの間に空気流に均一
性と方向性を与える整流格子１８を設け、それぞ
れの室１６下部に設置した送風機１９により加熱
管１７で熱せられた高温空気を強制対流すると共
に、加熱炉Ｃの両端に連通する吸気口２１により
各室内を換気するように構成し、搬送機１５上に
乗載されて移送するフリースｄの樹脂接着剤ｂを
加熱空気の透過により溶融硬化させて混合繊維綿
ａと極細状の軟質ウレタンフオームｃの互いに絡
み合つた接触部を強固に結合して一体化し、その
後必要により挾圧ローラ間に挾入通過させること
により混合繊維綿ａと極細状に裁断された軟質ウ
レタンフオームｃが均一に混合した所定厚のフエ
ルトｅを形成することができる。 The fleece d sent out from the fleece manufacturing machine B is passed into the heating furnace C by the conveyor 15. This conveyor 15 is formed of a wire mesh conveyor belt and has air permeability. The inside of the heating furnace C is divided into several chambers 16 by partition walls, and each chamber 16 is equipped with a heating tube 17 using electricity, heating oil, etc. as a heat source.
A rectifying grid 18 that gives uniformity and directionality to the air flow is provided between the heating tube 17 and the wire mesh conveyor belt, and the high-temperature air heated by the heating tube 17 is forced into convection by the blower 19 installed at the bottom of each chamber 16. At the same time, each room is configured to be ventilated by air inlets 21 communicating with both ends of the heating furnace C, and the resin adhesive b of the fleece d, which is carried on the conveyor 15 and transported, is melted and hardened by the permeation of heated air. The intertwined contact parts of the mixed fiber cotton a and the ultra-fine soft urethane foam c are firmly bonded and integrated, and then, if necessary, the mixed fiber cotton a and the ultra-fine foam are passed through between clamping rollers. A felt e having a predetermined thickness can be formed by uniformly mixing the soft urethane foam c cut into shapes.
このように各工程を経て、夫々特徴ある条件に
基づいて処理を施すことにより得られた本発明の
フエルト製品は第３図の如きである。 The felt product of the present invention obtained by passing through each process and performing treatments based on each characteristic condition is as shown in FIG. 3.
しかして本発明の方法は前記のように、発泡し
た軟質ウレタンフオーム又はウレタンフオーム屑
を極細状に裁断して混合繊維綿と絡み易い形状に
形成し、フリース製造機において針歯を有する回
転シリンダーを回転させ該混合繊維綿と軟質ウレ
タンフオームとを該針歯が上向に移動する側に投
入することによつて、混合繊維綿と極細状の軟質
ウレタンフオームとが均一に絡み合つて混合され
たフエルト製品をフリース製造機を使用して連続
的かつ高能率に製造することができる。 As described above, the method of the present invention involves cutting foamed soft urethane foam or urethane foam waste into extremely fine pieces, forming them into shapes that are easy to entangle with mixed fiber cotton, and using a rotating cylinder with needle teeth in a fleece manufacturing machine. By rotating and putting the mixed fiber cotton and soft urethane foam on the side where the needle teeth move upward, the mixed fiber cotton and the ultrafine soft urethane foam were uniformly intertwined and mixed. Felt products can be manufactured continuously and with high efficiency using a fleece manufacturing machine.
しかも製造されたフエルトは混合繊維綿と軟質
ウレタンフオームとが分離層を作ることなく均一
に混合されて一体化されているため、両者の特性
が相乗されて反発弾性、繰り返し圧縮率、断熱
性、吸音性等の優れたものとなる。ちなみに、本
発明のフエルトを従来のウレタンフオームが混合
されていないフエルトと比較したところ、本発明
のフエルトは見掛比重0.047〜0.050ｇ／cm3のもの
について反発弾性が40％、繰り返し圧縮率が９〜
11％と夫々優れた値が得られたのに対し、従来製
品は見掛比重0.067ｇ／cm3のものについて反発弾
性が37％、繰り返し圧縮率が40〜45％となり本発
明より大きく劣つていた。また、本発明のフエル
トは特に周波数が500〜700Hzの比較的低音域にお
ける音響透過損失が従来製品より大きくその吸音
性の優れたところが確認された。 In addition, the manufactured felt is made of mixed fiber cotton and soft urethane foam that are uniformly mixed and integrated without creating a separation layer, so the properties of both are synergized, resulting in rebound resilience, repeated compression ratio, heat insulation properties, It has excellent sound absorption properties. Incidentally, when the felt of the present invention was compared with a conventional felt in which urethane foam was not mixed, the felt of the present invention had an apparent specific gravity of 0.047 to 0.050 g/cm 3 and had a rebound resilience of 40% and a repeated compression rate of 40%. 9～
While excellent values of 11% were obtained, the conventional product with an apparent specific gravity of 0.067 g/cm 3 had a rebound resilience of 37% and a repeated compression ratio of 40 to 45%, which were significantly inferior to the present invention. was. Furthermore, it was confirmed that the felt of the present invention had a greater sound transmission loss than conventional products, especially in the relatively low frequency range of 500 to 700 Hz, and had excellent sound absorption properties.
なお本発明では熱可塑性樹脂接着剤を用いるた
め加熱温度は180℃以下の比較的低温でよくこの
ためにウレタンフオームの加熱による弾性劣化が
生ずるようなことがない。 In the present invention, since a thermoplastic resin adhesive is used, the heating temperature can be kept at a relatively low temperature of 180° C. or less, and therefore the urethane foam does not deteriorate in elasticity due to heating.
以上の如く本発明の方法は上記のような特徴を
有するもので、その効果をさらに要約すれば次の
通りである。 As described above, the method of the present invention has the above-mentioned characteristics, and its effects can be further summarized as follows.
(1) 混合繊維綿と軟質ウレタンフオームとの混合
が不可能でであつた従来のフリース製造機の使
用が可能となり、生産性が著しく向上し、しか
も従来のフエルトに較べて特に反発弾性が著し
く向上し、自動車内装材の性能向上に多いに役
立つ。(1) It is now possible to use conventional fleece manufacturing machines, which were unable to mix mixed fiber cotton and soft urethane foam, and productivity has been significantly improved. Moreover, compared to conventional felt, the product has significantly higher impact resilience. It is of great help in improving the performance of automobile interior materials.
(2) 主に、現在焼却処分されているウレタンフオ
ーム屑を使用できる関係上、焼却作業を省き、
省エネルギー、省資源に貢献できる。(2) Mainly because urethane foam waste that is currently incinerated can be used, incineration work can be omitted;
It can contribute to energy and resource conservation.
(3) 自動車内装材のダツシユサイレンサーとして
使用した場合、板金との密着性が優れており、
防振、遮音、吸音効果がでる。(3) When used as a darts silencer for automobile interior materials, it has excellent adhesion to sheet metal.
Provides vibration-proofing, sound-insulating, and sound-absorbing effects.
図は本発明に係るもので、第１図は本発明の方
法を実施する概要説明図、第２図は針歯を有する
回転シリンダーの一部拡大側面図、第３図は本発
明で得られるフエルト製品の一部拡大側面図であ
る。
ａ……混合繊維綿、ｂ……熱可塑性樹脂接着
剤、ｃ……極細状に裁断された軟質ウレタンフオ
ーム、ｄ……フリース、Ｂ……フリース製造機、
Ｃ……加熱炉、１０……針歯、１１……回転シリ
ンダー、１２……空間室、１３……エアー吹込
管、１４……回転網シリンダー。
The figures relate to the present invention; Figure 1 is a schematic explanatory diagram for carrying out the method of the present invention, Figure 2 is a partially enlarged side view of a rotary cylinder having needle teeth, and Figure 3 is a diagram obtained by the present invention. It is a partially enlarged side view of a felt product. a...mixed fiber cotton, b...thermoplastic resin adhesive, c...soft urethane foam cut into ultrafine shapes, d...fleece, B...fleece manufacturing machine,
C... Heating furnace, 10... Needle teeth, 11... Rotating cylinder, 12... Space chamber, 13... Air blowing pipe, 14... Rotating mesh cylinder.
Claims (1)
し、これに熱可塑性樹脂接着剤を散布した混合繊
維綿に一辺が1.0mm以下の角柱状に裁断された極
細状の軟質ウレタンフオームを所定量配合してフ
リース製造機に供給し、このフリース製造機の空
間室内で外周面に針歯を有する回転シリンダーを
回転させ前記混合繊維綿と軟質ウレタンフオーム
を該回転シリンダーの針歯が上向に移動する側に
投入すると共に該回転シリンダーの上部にエアー
吹込管を臨ませることによりウレタンフオームを
該針歯に引掛けて該空間室内にて均一に飛散させ
て混合繊維綿と絡み合わせると同時に前記熱可塑
性樹脂接着剤を均一に混合付着させ、さらに該空
間室内に飛散している混合繊維綿と軟質ウレタン
フオームを該空間室内に配置された回転網シリン
ダーに吸着させることにより所要厚のフリースを
形成し、このフリースを加熱することにより熱可
塑性樹脂接着剤を溶融硬化させて絡み合つた混合
繊維綿と軟質ウレタンフオームとを互いに融着せ
しめることを特徴とした自動車内装材用フエルト
の製造方法。1. An ultra-fine soft urethane foam cut into a prismatic shape with a side of 1.0 mm or less is placed on the mixed fiber cotton, which is a uniform mixture of natural fiber cotton and chemically synthesized fiber cotton and sprinkled with a thermoplastic resin adhesive. A fixed amount is mixed and supplied to a fleece manufacturing machine, and a rotating cylinder having needle teeth on the outer peripheral surface is rotated in the space chamber of the fleece producing machine, and the mixed fiber cotton and soft urethane foam are mixed so that the needle teeth of the rotating cylinder are directed upward. By placing the urethane foam on the moving side and facing the upper part of the rotating cylinder, the urethane foam is hooked onto the needle teeth and dispersed uniformly in the space chamber, intertwined with the mixed fiber cotton and at the same time, The thermoplastic resin adhesive is uniformly mixed and adhered, and the mixed fiber cotton and soft urethane foam scattered in the space are adsorbed to a rotating mesh cylinder placed in the space to form a fleece of the required thickness. A method for producing felt for automobile interior materials, characterized in that the fleece is formed, and the thermoplastic resin adhesive is melted and hardened by heating the fleece to fuse intertwined mixed fiber cotton and soft urethane foam to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57086989A JPS58203035A (en) | 1982-05-22 | 1982-05-22 | Manufacture of felt for car internal trim material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57086989A JPS58203035A (en) | 1982-05-22 | 1982-05-22 | Manufacture of felt for car internal trim material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58203035A JPS58203035A (en) | 1983-11-26 |
| JPH0233484B2 true JPH0233484B2 (en) | 1990-07-27 |
Family
ID=13902270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57086989A Granted JPS58203035A (en) | 1982-05-22 | 1982-05-22 | Manufacture of felt for car internal trim material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58203035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220359A (en) * | 2015-08-25 | 2016-01-06 | 安徽省中日农业环保科技有限公司 | The non-woven pro-skin sound-absorbing material of a kind of automotive trim fibroin-coated polypropylene-base of polyurethane complex emulsions |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0263703A (en) * | 1988-08-30 | 1990-03-05 | Howa Seni Kogyo Kk | Manufacture of high elastic sound insulating material for automobile |
-
1982
- 1982-05-22 JP JP57086989A patent/JPS58203035A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220359A (en) * | 2015-08-25 | 2016-01-06 | 安徽省中日农业环保科技有限公司 | The non-woven pro-skin sound-absorbing material of a kind of automotive trim fibroin-coated polypropylene-base of polyurethane complex emulsions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58203035A (en) | 1983-11-26 |
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