AU594205B2

AU594205B2 - Natural fibre one-size sock

Info

Publication number: AU594205B2
Application number: AU79904/87A
Authority: AU
Inventors: David Pacifici
Original assignee: EXTEND Srl
Current assignee: EXTEND Srl
Priority date: 1986-10-21
Filing date: 1987-10-19
Publication date: 1990-03-01
Anticipated expiration: 2007-10-19
Also published as: EP0265395A2; GR880300134T1; AU7990487A; ES2003837A4; IT8648570A0; DE265395T1; EP0265395A3; PT85971A; IT1198451B

Description

594205 S F Ref: 39958 FORM COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 COMPLETE SPECIFICATION (01.1G INA L)I FOR OFFICE USE: Class Int Class 0 t tot 000 S 0 0 ~t.S 00 to 0 0*0* 0* 4~0 S Complete Specification Lodged: Accepted: Published: Priority: Related Art: This doucii.~t contains the am~liendments miade un&r Section 49 and is correct fcai Sprihiting.

Name and Address of Applicant: *Dav-i-Pa ctf44-1 V-ia-odcoardo Be ccari, n Rome,-00l1-5* Cx- ercl 9 r. VIC Tgors_- e, 154.

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Address for Service: Spruson Ferguson, Patent Attorneys Level 33 St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Complete Specification for the invention entitled: Natural Fibre One-Size Sock The following statement Is a full description of this lnventi~r', including the best method of performing it Known to me/us 5845/3 4!

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ABSTRACT

A natural f ibre one-size sock having a tract between the heel and the tip of the foot, and preferably close to the tip of the foot, of a va r ia blIe length between 2.5 and 15 cm, preferably about 7 cm, which tract is made up of at least a coated elastic yarn, such as for instance an "elastan" yarn coated with one o two pure cotton threads.

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2 1A DISCLOSURE OF THE INVENTION The present invention relates to a natural fibre one-size sock.

More particularly, the present invention relates to a sock of the type mentioned above which is made up of virtually 100 natural fibre but shows such elastic properties as to allow the same to adapt itself to any foot size.

The usual procedures of the present time for making socks of sufficient elastic properties, such as to cover the whole range ic of sizes of feet consist in the employment for the making of the sock, of a second thread in addition to the very thread of a natural fiber, said second thread being internally coated and characterized by a certain degree of elastic recovery.

Usually the thread employed is a textured polyamide yarn of the Helanca type which is inserted inside the manufactured article in order not to alter the outer apsect as well as the so-called "hand", of the product, through the coating technique.

As is well known by those who are skilled in the art, the coating technique, from which the term "coated knitting" or "va- .o nlse" comes, consists 'in feeding two different threads to the needle respecting precise, and constant positions. In such way, a so-called "double-side" or "double-face" fabric is obtained.

The result obtained by such procedure, though satisfying after all, gives also some problems stemming for the most part from the presence of the man-made thread.

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Indeed, as said synthetic polyamide thread is employed in the whole length of the sock, not only at the points corresponding to the foot but also at those corresponding to the leg, the final weight of the polyamide component is of the order of of the total weight of the sock.

Such fact gives as a result the impossibility of attributing to the product the market qualification of "pure cotton" or of "pure virgin wool" according to the laws in force, a fact to which reference will be made in the following, so that easily imaginable A0 negative consequences arise from a commercial standpoint.

Moreover, as the man-made thread is to be inserted inside the product, because ?f obvious aesthetic reasons, the sock turns out to be definitely less comfortable, as the foot does not conr, tact the more valuable natural .thread; accordingly, allergies, OC.C. LA perspiration, mycosis, etc.4@ie'.

As regards the laws in force in Italy relating to the compul- S sory marking of the market qualification, which laws also agree with the laws in force both in European countries and in the United States, the article 10 of the law No. 833 provides that 10 total weight of the textile product, as regards the calculation of the fibres relative percentages compositions, is to be considered as the net weight of the product free from those components which, though essential for the realization of said product, nevertheless are considered extraneous as regards the compulsory label.

f 1 The following materials are to be considered as extraneous: a) reinforcing-parts elastic parts, Moreover, article 28 of the Rules provides that 3) in the case of sock articles, the parts are to be eliminated which are possibly reinforced, as well as the elastic borders 0 According to the above and in the light of the laws in force, it is Quite clear that the advantage of a sock according to the present invention having an elastic^qW.t between the heel and '\the tip of the foot is very high, the employment being provided tE tu- r i P P *r i, c+l vr,: Iror c:te L I:

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of a covered elastic thread of such properties and structre as to make the sock in question of the "one-size" type and simultaneously to keep the possibility of employing the market qualification of "100% natural fibre".

Accordingly, it is the main object of the present invention to provide a natural fibre one-size sock that can be made employing the knitting machines commercially available at the present time, which sock has an elastic section at the points corresponding to the foot, which section allows the sock to be employed for any foot size.

To that aim, the present invention suggests the realization of a one-size sock having an elastic section between the heel and the tip of the foot which section is realized employing at least one elastic yarn which is covered so that the weight of the man-made thread represents a very low percentage with respect to the total weight of the product (percentages even lower than Accordingly, the present invention provides a natural fibre one-size sock comprising a leg portion and a foot portion knitted solely of natural fibre except for a section between a heel portion and a tore portion which S is knitted of elastic yarn wrapped with natural fibre, said section of the foot portion having a length between 2.5 and 15 cm in unstretched state.

,r 20 According to a preferred embodiment of the present invention, said wrapped elastic yarn can also be made up of a composite yarn of elastan or rubber covered with one or two pure cotton threads.

Preferably, such yarn can be made up of the yarn commercially r available from DuPont under the trade mark Lycra.

"1 t «25 A yarn such as those mentioned above has a stretching ability of 300% f and Is so gauged in diameter as to be inserted into the knitting of the S" r ,j fabric without altering the outer aspect of the sock.

Socks such as those which are the object of the present invention are made according to the technologies of the present time employing one feed machines or two or three feed machines.

SPreferably two feed machines are employed with the covered elastic yarn used on both feeds or also on one feed only so that courses of elastic yarn alternate with courses of natural fibre yarn.

,Even three feed machines can be employed usin .said elastic yarn on one feedI on two feeds or also on all three feeds.

Anyway, the best results were shown t&be attained employing the covered elastic yarn on one feed only.

-3nas r 71 V T O T/ i According to a preferred embodiment of the sock of the present invention, said section or piece is of about 7 cm length (in the unstretched state) and it is arranged just before the tip of the sock.

Brief Description of the Drawings The invention will be more fully understood from the following description of a preferred embodiment shown by way of example in the accompanying drawings in which: Fig. 1 is a side elevation of a sock in accordance with the invention in unstretched condition, and Fig, 2 in a side elevation of the sock in stretched condition.

Description of Preferred Embodiment.

Such a solution, as shown in the enclosed Figures 1 and 2, provides a natural fibre sock capable of becoming sufficiently stretched so as to fil all man-sizes from the size 10 1/2 (Figure which is equal to 27 cm to the size 13 (Figure 2 shows a stretching of 12 1/2, i.e. 32 cm).

i' An elastic section or piece of an unstretched length of 7 cm, with the yarn employed on one feed only, has a weight corresponding to about 4% the weight of the sock itself.

Said percentage of 4% is in turn made up of 85% cotton and 20 synthetic fibre (elastan), the weight of the total synthetic fibre equals the 0.6% of the whole weight.

Accordingly, it is well evident that the possibility of having at disposal a product like that proposed by the present invention gives a r number of advantages.

4 6*,25 Indeed, it is possible to obtain a high quality article of commerce, which article consists of natural fibres but shows con-comitantly all advantages which up to the present time were an exclusive property of synthetic component products.; SAccordingly, a strong reduction is obtained of the amounts of stored 1 o30 product, which reduction also gives remarkable money and space savings with the possibility of ordering a wider range

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In addition, it is possible to exhibit the product for sale in places not of the traditional type, such as supermarkets, autogrills and so on, because the user's selection is limited to the colot of the socks themselves.

The present invention has been disclosed just for illustrative and not for limitative purposes, according to some preferred embodiments of the same but it is to be understood that modifi- 0t cations and/or changes can be introduced in the same by those who are skilled in the art without departing from the sit i-Lt scope of the invention for which a priority right is claimed.

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Claims

2. A natura elastic yarn i
3. A natura elastan yarn i
4. A natura elastic yarn i A natural rubber yarn is 15 6. A natural I fibre one-size sock according to claim 1, in which said s elastan yarn. I fibre one-size sock according to s wrapped with pure cotton thread. I fibre one-size sock according to s rubber yarn. Ifibre one-size sock according to wrapped with pure cotton thread. fibre one-size sock according to claim 2, in which said claim 1, in which said clati;: 4, in which said claim 1, in which, in said 4*# 9S** 1*e1* 20 section, courses of said elastic yarn alternate with courses of natural fibre yarn. 7, A natural fibre one-size sock according to claim 1 in which said section has a length of about 7cm in unstretched condition,
8. A natural fibre one-size sock substantially as hereinbefore described with reference to the drawings. DATED this TWENTY THIRD day of NOVEMBER EXTEND S.R.L. 1989 t tc t; r c 3Q 0 I ac Patent Attorneys for the Applicant SPRUSON FERGUSON j I E r ,1 -6- *1 nas/226r VI