DE2149877A1 - Needle roller for the fraying of a fiber-open plastic plastic film - Google Patents

Description

Needle roller for the fraying of a fiber-open plastic plastic film

The invention relates to a needle roller for the fiberization of Fibrous plastic films with at least two needle combs is provided on or in the roller surface with mutually equal distances, each needle comb from a carrier with a row of adjacently arranged needles.

Such needle rollers are known. The fibers that come with her Aid can be used to a certain extent as a substitute for natural fibers and come in fiber bundles Use. Tn appropriate, they can also be used as material for

v / earth.

Rg has also been tried to find uses in the field spun yarns through the production of splittable fibers with a pinem or smaller diameter, as it is, for example,

209818/1102

se Pu τ »textiles is required.

Relatively fine fibers can be enlarged by betirä ^ bM ir'hp;: - relative speed of the needle rollers in Rezucr on the be generated.

By increasing the Auffasergeschwindi gkei t the individual grows iedoch the risk of tearing parsers are highly, resulting in a \ considerable Vermi nderun σ ds / "Reißfesti gkei t leads the resulting ago abstellten yarns. In addition, the loose cause fiber ends that arise while ripping, unlike as in play 9- staple fibers Schwieri rrkeiten in Vei terverarheitunrr (for example, in weaving or knitting). Demgeaenübe-p evmoriirn the invention a controlled fanning, whereby the disadvantages described above are avoided.

The object of the invention is accordingly to address these disadvantages to eliminate, i.e., a needle roller is to be created, which at the same high fiber opening speed as before and significantly reducing fiber tear production very fine fibers due to the fraying of a plastic film guaranteed.

This object is achieved with a needle roller of the type mentioned. which is characterized according to the invention that the needles provided with torpedo-shaped tips and in series and parallel are arranged to the axis of the roller, each iede üadp'I a Diameter of 10-T5 /? M and with a maximum of four

209818/110? BADORIQiNAL

T.äncTP UbPT die ObeT> p "I äfViP r] <=» c;

er ·! η ρ η rl viiT »dr» ri ^ boi rrpp-nndpn, daR hpi VpT ¹ WP ⁴ TtIh η α of ii · ρ ρ Irr VT pi "Pm Dnrplnmpqqpri and ρίηργι σοίηγ»] <- ■] <=> i γιρη aVfiven T.än—

d ^ ¹ " ¹ " in TTadai Wa 1 7ΡΓ. bi ShI = T beVannfPT ¹ Ar ¹ I "Ppi π ιιιΡγτρΙ-ρι 1 f ρ ι? ^ ςρ> -ρη hP" r <Tpc; f ρ>"1 η f • y / PT'den VÖ ητη aarpiiont" 7ΐιτ Prii .nrtnnri νηυιτι Pin ν.ργΛΡΡΤ Rpn dPT ¹ ft.

η Viahpri ρΙήρτ] T ^ n-prVlTnpcSPT from PO- ¹ SO nm ( T Ο— 6 "i Ί and Ιτοπηρη from iPdPtH

■ hon nrjp-p apViär> 1-ptpn '' pfaiT hpQtpVlp-η _f W "i PQ"P3T> Vii "t" —Ri,

Si T i oinrnrp »r> bi d — Vi nV-pi pf al iPin and ahnTipViPn '- ^ tpri ^ l ipri, dip pi np rrr> oRp Ahr« i phPpq1 - i rrVpi + · liahpn. VOTTlirrsWPi? P «? Ind dip Mi Vt ¹ OTIS dpi Π

ι f _t nip tnr> ppdoförmiaen peaks, di ρ approximate pr-rid a ^ ™ Dn-rchTTip.c ^ PT ¹ der

that iS'hpTT'a ^ nhe ^ d Vanni pine Pa ^ erzprrei ßimq a "f-

η Fapprri hprae ^ fpllt wpr> dpn _r , pinen TimPan <T nnd pine "margin width-ertei - have, dip dem ^r Pexf i τ TvnoduVt the desired grip rrphpn, wäVir» pnd dPT i5npr »Mn" nqpVife? nahp ^ .Ti total.ifT lu ir »ri _ψ

^ ni i 1-f - \ ri α-η & ηΐίΐ rrp> ρ ^ _ςρτ> ϊΐ with "a

c inr] .TiIp rlif ^ eo AT> t "lind Wp" i qp

209818/110? BAD ORlGlNAk

wi T ¹ TcI i Chen. Γ) ϊ <=> ατηβΛ An ¹ ^ qViI r] pr! »Tarjfa"! Η τ »τ» η '7p> vTf-irnpi1-or <Ίρ>ς?>. R = i - del kammes makes: e < ^ pucVi mörTiich, in winblick au F dip n ^ -rnpro- dnktioyi very narrow ^ Trei fen <Ί mm ^ nfasprn effect on ^. nies about the ΐί ^ Ίρίψλ! 7PN been ^one ublio ^ pr Anordnunn-q ^ ahl of Madpl η not möfTlich because the geqenseitiqe needle distance · is also in the nrößenordnung of one millimeter, so narrow strip between two adjacent needles are carded. in this Grimde it is necessary to de d "^ Arffaseruno <=>. in longitudinal cutting into narrow strips ^ rchzi ¹ lead. ± iei ^ r>«'endunq ^ der ei f ■ i ^ir r'u: if ^Tf ' g ' ^aw c ^ä iifca Nadelwal ^ .en now the lengthwise cutting of the Ρΐτηβ ⁰ advantageously take place before the actual A ¹¹ Pfaserimg.

Example 1:

In a fiber-opening device of a known type, six rows of microneedles are arranged on the surface of the roller and parallel to the roller axis and at equal intervals on both sides. These microneedles are made of tungsten with a thickness of 50yum. The outstanding length was about 100 / am. The point * to point distance of the needles of each needle comb was approx. 100

/around. With this needle roller a länasz.er ^ chni ttpner polvenf i.lm aufaefasert.

A fiber structure with a fine, uninterrupted network structure was achieved, the essentially uniform fiber width of which was about 30 μm. The fibers had a gentle QTH PF dishe rrten no Rlanz .. The strength of the gut '+ · erh-iibptrunr ^ o rr / tex (c *. 4? O8 Irr / cn λ · the fipifiip

209818/110?

BATH ORIGINAL

2U9877

1 ängsanfneteiι te 1 arm up. The first film was also made with hprkomnil ir-hpn Nadel wai 7ph rnit on average rrlpioher _r unp pq after dpr FrPi ndung erPol at. pie Fp <? ti gkei t ri

s bptrug ηιιτ B, ^ a / tpx ^ Q ^^ leg / cm '). The Fe. ^ Ti alrei t de ?;

The for ¹ pindtinq made of fiberglass material was once larger, which is to be added to the presence of broken fibers,

i el P:

r DbPrPl on the roller according to example 1, two rows of ϊ-HVrnnadPln are arranged with rrie r-hem against qpi ti aem distance and parallel to the nv roller axis.

Rs became aep ^ -ndpn that with the ^ f ^ r Wal zenausbi Idunrr a similar one EPgpbnis prz ^ plt wprden Vonnte. For the a ■ ι ^ s such fibers her—

lte urine even resulted in a strength of 50 π / teχ Va / r-fi), τη ^ Πρπ cases, the Filmgeschwindi gVei t be equal to, as si * ³ applied so far.

although in both examples from a PolypropvlenPiIm the It is of course possible to use any other plastic material that can be made out of fibers be used.

ι-ργ> ο pi ντ7, (3ΐ hp »i + - <=> nd ^ r FrPinduni are after Folapnd an" and zei chneri sr-Vipn ⁿ arstpliuna of an appraisal example play es nah - (=> rl Mu

Γη this n-T ^ position shows in a perspective view

209818/1102 ORIGINAL BATHROOM

Pin-, 1 a Madelv / al w ™ if " ^? > Iad <=> i Varn ^ en Pia, P part pi'rips needle Varnmes with-

2Us9877

^T -ass ~

The Madelv / al? " is mi ^ 1 denote + *, ^ ⁷¹ tip ^^ nhoypi ärhe f> i-fu ^ e 2 are arranged, which are equally distributed over c \ ^ n UrnPanrr d ^ r WaI ¹ ? * = ⁵ 1. Tn ieder ¹ ^ Inte 2 qit7t a Haripi ¹ '? """^ And i«? T · rl ^ ri'n in known "! ⁰ Wen ^c p hppAct-iai-, Ri η qoTr-iofs-p jfad ^ i l <r ^ mn \ _t of d «pin part essential ve-paröseft in Fia. P d ^ r ^^^ i-el l t- i ^ t, be ^^ e 'from a Träaer »4, in which in h ^ Tfannter WeT se the i-iadeln 5 are attached

,around

de · "Well

arranges m'nd. Tede Nadi = l Vi? t a Pur ^ hwe ^^ PT B """on and raat over the obeT'P ¹ area 6 of the H ¹ T ¹ Mrrer«? A- over

7, the maximum of the four pairs dei

deln S entqprifVit. Tpde Mad ^Q l S hat ^ irt ^ p

whose Länae Q ar>n-priähp> T <t aleir-h Hern ^ iir.-hTieqqer 8 der Hade! S ipt, nip P (S ς ti ecm η α ei nee · jj ^ rlpi irairifpp ^ i vi <= iyip> r «tth + - ρ der« ⁷ -f =) i 1 ^ riröqi icht ein Ver ^ chub paTall ^ l and also senV- ^ real to the axis, whereby it is possible i ^ t-, the needle lcämme ^, co pi that an optimal AfFaserunaserqebnis is established.

209818/110?

BADORIQ.NAL

Claims (1)

2H9877 tr ρ η + ■ a η s ρ τ η c H ρ i ¹⁷ ? Ρΐίτ »ri-ις d""» nH 1- mn \ ^<T a1 7pnohprP 1 Mr-Ήp mi t i ^ t, vnhpi ipdpT ¹ needle anPPs from Tnrx «? T * 9t · ηPΡ—
7i \ »/ p * i Madpl Vämmpn on ndpi? in τ 1 "i α γγΙρτC ¹ ^ pτ» Absi "ändpn ve
"i ^ u? piyiern Φ-päfTPr * with ριπρτ ¹ n hp <? i-ph1 ", d a d 13 T C Vi ο t · _f that the Nadpi T ¹ ^ ¹ ^ ^ lTliir t "D"r> ppdo— nv> _: -] jp] ^ ρ _Ί "1ηρ and parallel 7, Ii-T / \ pVicp c; ivid, v / obei ipde Nadpi ( 1 Π— "? S A \ vn Vi ^ t and with pi r \ ev rilirrhmpqqpr ¹ RYi t STTpPfhevidP ¹ ' ^{1 T} -äHfJP U ^ ¹ PT di P dp «; 'r'T'ärrpr'r'('4 ^ pa ^ t. -i r · h 7p (·] \ 1, thereby σ ρ ke η η _t ds P dip needle Vi (<?) Made of tungsten 209818/110? BATH ORIGINAL Blank page