US1551495A

US1551495A - Flexible material having temporary protecting means por its surface

Info

Publication number: US1551495A
Authority: US
Publication date: 1925-08-25
Anticipated expiration: 1942-08-25

Description

Aug. 25, 1925. 1,551,495

E. LIONNE FLEXIBLE MATERI AL HAVING TEMPORARY PROTECTING MEANS FOR ITS SURFACE Filed May 24. 1920 Non-adh coaitmq jiiweii Zora Patented Aug. 25, 1925.

UNITED STATES ERNEST LIONNE, OF NEEDHAM HEIGHTS, MASSACHUSETTS. I

FLEXIBLE MATERIAL HAvme TEMPORARY PROTECTING MEANS FOR ITS SURFACE.

Application filed May '24, 1926. Serial No. 383,674. d

vented an Improvement in a Flexible Mate rial Having Temporary'Protecting Means for Its Surface, of which the following is a specification.

This invention relates to a novel fabric or similar flexible materialwhich is adapted to enter into the composition of a manufactured product as a shoe.

In the manufacture. of such a product as a shoe many manufacturing operations are performed and the shoe undergoes-much handling before it is finally finished and in condition to be sold.

The outer surfaces of the shoe by reaso of the various manufacturing operations and the handling, become soiled and must be cleaned before the shoe is salable. Attempts have been made to' protect the surface of the shoe during the manufacturing process as'by stitching a paper or the like covering to the edges of the pieces as the vamp, uppers, etc., entering into the shoe or applying other temporary protective coverings adapted to receive the. soil and at the proper time removing the protective covering with the soil thereon thereby to expose the protected surface in its original state of cleanliness.

Such temporary protectivecoverings have been applied to the individual pieces entering into the manufacture of the finished product or to the surface of the product at an intermediate stage of manufacture.

The object of this invention is to provide a novelfabric or the like in large sheets or in the Web havinga protective covering for that surface adapted subsequently to be exposed in the finished product in which pieces of the novel fabric are incorporated. The protective covering of the novel fabric is adapted to adhereto the smal er pieces cut therefrom during the manufa ture of the article and receive the soil resulting from the manufacturing operations. At the proper time the protective covering is with the protective covering thereon, or

leather in whole skins or sides with the protective covering thereon, is adapted to be sold to shoe and other manufacturers who Will cut from the web or sheets the smaller pieces or shapes to be incorporated in the shoe or other product. Atthe end of the manufacturing operation the protective cover will be removed and thrown away.

The protective covering may comprise any one of a number of materials or substances which will present a relatively smooth outer face, so that" itwill not be come easily abraded, will be-flexible and pliable to bend with the bodyof the fabric without becoming broken or becoming detached from the surface, will be tough to resist unintentional tearing, extensible when such characteristic is desirable, and will be cheap.

Vhile I may employ, for the temporary protective covering, any of a number of previously prepared sheets having suitable characteristics, I prefer to employ a protective' covering formed as a film by coating over the surface to be protected with a film producingv solution such as pyroxyline solution and subsequently remove the solvent from the coating to form the sheet or film. The film may be deposited thereon to any suitable thickness best adapted to the requirements of the particular article or product made from the novel ,material.

One of the characteristics of my invention is that the protective coating or film shall be relatively non-adherent to the surface covered by it in order that it may be readily removed. The pyroxyline film formed by the evaporation of the solvent from the solution will be by itself very adherent to the.

fabric surface and will cling thereto sof strongly that it can not, be removed with facility. I, therefore, initially apply to the surface of the fabric of the material to be prote cted an initial coa 'ng adapted to receive t film produ" solution and to which th film will adhere to a greater or less degree. The initial coating is in itself substantially non-adherent to the surface of the fabric. At least it Will be substantially non-adherent as compared with the adherency of the film itself to the fabric.

I prefer to employ, among a number of compositions'well adapted to form the nonadherent coating, a composition formed of ing will be relatively thin and will which the next layer is formed, may be to bend with the body-portion of the fabric a pigment in a finely divided state, as adapted to receive the soil-of the manufackaolin, china clay, aluminum oxide or hyturing operations. As contrasted with the drate and the like; a binder which may be non-adherent, pulverulent coating, which is a gum as gum tragacanth, dextrine and the adapted to have but slight tenac ty or ab lity like; and a vehicle as water, benzol and to resist rupture and is relatively brittle, 7n the like. and the particles composingit but weakly The proportions of a composition well adherent to each other, the outer soil-readapted for my purpose may comprise ceiving coating'or film is adapted to be nonpulverulent, tough and tenacious and tear Water and wear-l' ga and extenslble when Gum 2 needed. PigmeiifiILII 40 The solution a p to form Such a coating is applied over the conditioning coating by suitable means, as a coating knife, to

form a film or coating of suitable thickness, and the coating is dried by suitable means, formed thereby to the specificmaterial to as b d i u b d i h b which pro ec ion 1 g The novel material is now prepared and T OOIIIPOSItIOII 18 pp e uniformly on may be formed into a roll or otherwise arthe surface of the material y sulmble ranged and is in condition to be cut up into means as a coating knife and to theproper Propelpieces d shapes hi h ill b thicknesse Y the eoatmg 13 T9151 formed into some manufactured product. tively thlIl SO that the composition (lOGS will be noted that the protective COV- more than the interstices Of the e -ing is fo ed in tvvo distinct-Liv a layers and does not extend above the rf e of each having different characteristics. The the material to ny appr i b g e h initial coating is formed from a composition proportion of the composition and the in which the main component, the pigment, gredients of the composi lon W be SO is in suspension and the coating formed ranged that when the new fabric is finally th b i l l t, Th Substance I completed the outer coating or the fil W111 forming the final coating is deposited from have the proper degree f dh i' yltfilld a solution and the coatingis tough and in some instances that it may e advlsable tenacious and presents a smooth surface.

initially to wet the fabric n app y the The pieces cut from the coated fabric are or in such other suitable proportions as to provide proper, and relatively small, adherency of the desired pulverulent coating I non-adherent Coating to the Wetted fabric adapted to be sewed to other pieces or otherwhereby to assist in-regulating the thickness of the coating.

After the non-adherent coating is applied wise formed into the finished product with the coating thereon; and the coating receives the soil of the manufacturing operait IS dried and the fa ric 18 n readiness tions. When the article is finished or when for further coating applications. The next h a Stage of anufactur has been layer, 01 the film prod i g Solution from reached that it is desirable to remove the 7 p coating, the coating may be cut by a knife plied directly on top of the non-adh r andan edge thereof raised, which edge is coating and in many instances this will be g as ed and the outer filni stripped from the done. In somelnstanees, howev r, I p f surface in relatively large pieces. The film to apply to the 'surface of the dr ed IiO carries with it a considerable proportion of 11. adherent coa ing asol tion contain ng g m the non-adherent pulverulent coating, which and Water which may be In he PP PO i I, adheres thereto. The remainder of the pulof "water 100 parts, gum 2 parts. This coatverulent coating is in a more or le s powserve to dery form and is removed from the surface Condition h H D- d ren h t ng to reof the fabric by mechanical means "as by a ceive the film producing-solution by filling revolving brush. The surface of the fabric or sealing over thepores in the non-adhen is thereby exposed in its original state of ent, ulverulent coating. cleanliness. i

A ter the conditioning coating has been If the surface of the material to be proapplied and dried the film producing solutected is white then the pigment entering 1 tion is applied: ,into the composition of the non-adherent- The film producingv solution preferably coating will be white also; and if the surcomprises a cellulosic solution, as a pyroxyface is of a different color then the pigment. line or other colloidal solution, but may comwill be such as to match the color of the prise any solution adapted to form a film surface whereby the protective-coating will which will be relatively tough and tenacious, not in itself stain the surface of the matetear and wear-resisting, flexible and pliable rial to be protected. Fig. 1 is a perspective detail illustratin pr other material to'which it is applied, and the various protective layers super-imposed presenta relatively smooth outer surface on the fabric. 9

Fig. 2 is a view similar to Fig. 1, with the conditioning layer absent.

Fig. 3 is a detail illustratingthe protective covering partially stripped from the fabric and showing the non-adherent coating clinging to the film and also to thefabno.

Fig. 4 is a detail illustrating the surface of the fabric in its cleaned state after the..pi;otective-coating has been removed.

Fig. 5 is a detail illustrating the protective coating applied to a canvas material having a water proof backing strip permanently adherent thereto.

In the figures the fabric is represented by 10, the non-adherent coating by 50, the conditioning coating by 51 and the outermost coating or film by 52. For some purposes it may not be necessary to employ interi'nediate or conditioning coating and Fig. 2 illustrates a section of the new material in which the outer coating or film 52 is applied directly on top of the non-adherent coating 50.

Canvas entering into the manufacture of shoes usually is made partially water proof by cementing a backing strip to that face adapted to be innermost. in the finished article with an adhesive rubber cement; and the backing strip is ada ted to be permanently united with the fabr c by such cement.

My protective coating is well adapted to be applied to such material, and is illustrated in Fig. 5 in which the canvas 10 has the layer of rubber cement 53 and the hacking cloth 54 on one surface and the nonadherent coating 50 and the protecting film 52 on the other surface.

Fig. 3 illustrates a section of the protective coating partially removed from the body of the material and shows the manner in which the non-adherent coating is removed, part of the non-adherent coating clinging'to the film covering and part clinging to the surface of the fabric. After the outermost film with a large proportion of the non-adherent coating clinging thereto has been removed that portion of the nonadherent coating remaining on the surface of the fabric is remove d in powdery form by mechanical means as a revolving brush having relatively stiff bristles.

While I have illustrated my invention applied more specifically to canvas or similar textile fabric yet it also will be applied to leather and other material in essentially the same manner, modified, however, to adapt the invention to the specific material em-' ployed.

I claim: 5

1. As a new roduct of manufacture a flexible material 1n large sheets or in the web having a temporary protective covering for a surfacethereof comprising a sheet of material whichis flexible to bend with the material without rupture, and tough to resist unintentional tearing, and a pulverulent binder weakly uniting said protective covering to said material by which said protec-. tive covering is removably adherent to the surface of thematerial, and adapted to adhere to small pieces cut from the large sheets and be subsequently removed from said pieces by mechanical means toexpose the protected surface in its original state of cleanliness.

2. Asa new product of nulnul'zuzture, a flexible material in large sheets or in the web, having a temporaryprotecting covering for a surface thereof comprising a tenacious and flexible sheet of material uniformly applied to the surface, and a pillverulent binder weakly uniting said protecting covering to said flexible material by which said protective covering is temporarily adherent to the surface and to the surface of small pieces cut-from the large sheet, said pulverulent binder being sulliciently adherent to flex and bend with the material without being detached therefrom and removable therefrom with said protective covering in pieces by mechanical means.

3. As a new product of manufacture a flexible material in the large sheets or in the web comprising a flexible body portion and temporary surface protecting means therefor comprising a flexible, colloidal sheet, and pulverulent means uniformly attaching it to the surface of the body portion admitting of its detachment therefrom in pieces. I

4. Asa new product of manufacture a flexible material in large sheets or in the web comprising a body portion and temporary protective means for its surface comprising a filler of pulverulent material uniformly applied over the surface to fill the interstices thereof characterized by the particles composing said filler'weakly adhering to each other and to the surface of the body portion, a conditioning coating I of a substanceto fill the pores of said pulverulent filler applied uniformly over the surface of the pulverulent filler-,and a flexible protective sheet uniformly applied over the surface of the conditioning coating.

5. A flexible material having temporary protecting means for its surface comprising a'surface covering of a pulverulent material characterized by the particles composing it having the color of the surface to be protected and relatively weakly adherent to each other and to the surface of the material, and a flexible protective-coating the pulverulent covering and the remainder of the pulverulent covering adhering to the surface of the material and removable therefrom by mechanical means.

6. A flexible textile material having temporary protecting means for its surface comprising an initial protective coating weakly adherent to the surface of the material and a final coating comprising a film of cellulosic material superimposed over the surface of the initial coating strongly adherent to said initial coating.

7. A flexible material having temporary protecting means for its surface comprising an initial protective pulverulent coating weakly adherent to the surface of the material, and a final coating superimposed on the surface of the initial coating comprising a film of cellulosic material strongly adherent to said initial coating.

8. The method of temporarily protecting the surface of a flexible material which consists inapplying an intermediate weak and frangible coating to the surface, drying the coating, and applying an outer coating of a film-forming material to the dried intermediate coating, and drying said outer coatmg.

9. The method of temporarily protecting the surface of a flexible material in large sheets or in the web which consists in coating the surface of the material with a composition containing .a liquid carrier and a pigment in suspension in the carrier, drying the coating to remove the carrier and leave a friable layer of pigment upon the surface, coating the dried friable layer with a filmproducing solution, and drying the second coating to deposit a tenacious and adherent film on the dried first coating.

10. The method of temporarily protecting the surface of a flexible material in large sheets or in the web which consists in coating the surface of the material with a liquid composition containing a pigment in suspension, drying the coating to remove the carrier for the pigment, coating the surface of the dried coating with a conditioning solution containing a pore-closing substance for the pigment coating, drying the'conditioning coating, coating the dried conditioning coatingwith 1a film producing solution, and drying the last-named coating to deposit a film superimposed over the previous coatings.

In testimony whereof, I have signedmy name to this specification.

ERNEST LIONNE.