US1166847A

US1166847A - Impregnated fabrics and method of producing same.

Info

Publication number: US1166847A
Authority: US
Inventors: Robert Athelstan Marr
Original assignee: GEN WATERPROOFING CO Inc
Current assignee: GENERAL WATERPROOFING CO Inc; GEN WATERPROOFING CO Inc
Priority date: 1914-11-12
Filing date: 1914-11-12
Publication date: 1916-01-04
Anticipated expiration: 1933-01-04

Description

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Be it known that I, RoBnRT' ATEaLsTAN Mann, a-citiz'en of the United States, residing at Norfolk, in the county of Norfolk' and State of Virginia, have invented certain new and useful Improvements in Impreg- 'nated Fabfics and Methods of Producing Same, of which the following is a specifica tion.

In-mycopending application. Serial Numberj 811,911, filed January 13, 1914: (now Patent No. 1,121,647), I have-described and I claimed'a processof treating textile material, particularly ropes, fabrics and articles comprising. the same, with a mixture containing paraflin warm-naphthalene and diatomaceous earth. In another copendingflapplication Serial Number 811,913, filed January 13, 1914, I have described and claimed the treatment of leather with the same mixture. While these two processes have been found to give excellent results, it is found advisable under certain conditions, to omit the use of the diatomaceous earth, andto impregnate the material with a mixture of paraflinwax and naphthalene, applied at a temperature above the boilingpoint of water, said mixture being free from diatomaceous earth, or other material having a similardegree of hardness, since such material may injure the hands of workmen using ropes, etc, containing the same.

In my prior Patent'No. 1,023,784, I have described and claimed the treatment of wood, with a mixture including p'araflinand naphthalene, applied at a temperature below the boiling point of water, for the purpose of preserving the wood. In the present process, however, I apply this mixture to 4 0 leather or textile materials such as above retion being found to be advantages.

In carryin out my process I first prepare a bath of mo ten parafin 100 parts, containing naphthalene 3 to 5.parts or up to 10 parts to which I may add any suitable dye soluble in the menstruum, and under certain conditions I may also add Paris green 1 to 2 parts, and materials capable of reducing.

the inflammability of the product, although the addition or omission of either of these Specification of Letters Patent.

5' last three is optional. The proportions of par'aflin and naphthalene maybe "varied somewhat, but in all cases I preferably em- I Patented Jan.4,1916.

' I Application flled November/121914.. Serial'm).871,818.

ploy a relatively small amount of, naphthaone, as compared with the parafiin, 10%

being about the upper limit.

The material to betreated may. be in its air dry condition,".'coritaining say from 5 to 15 per cent. of moisture, although for securing heav'yimpregnation-it is advisable to sometimes employ material containing considerably more moisture than this; In fact if desired I may wet the rope or fabric, or

textile material composed of, or containing,

rope or fabric or leather or other material to be treated, by soaking the same in water prior to immersion in the'bath of molten parafinand naphthalene. After immersion of the material into the bath, while the bath is maintained at a temperature of say 230 to 250'F., the bath may be maintained at this temperature for a few minutes, five minutes being ordinarily sufficient. After this the material mav be transferred'to another bath, of the same or similar composition, or

the first 'bath may be allowed to cool, in

order to secure a heavy impregnation to a ject of the second bath is to produce a heavy impregnation of the material, and to leave the coating of the mixture containing parafiin and naphthalene upon the surface of the textile material.

Among treated 1n accordance with this process are fabric, rope, yarn, string, duck, canvas, nets for fishing, hammocks, bags and bagging,

andin fact any materials made from'textile materials, also leather, and-materials made lfrlpm leaher, such as bags, boots and the In the appended claims the term textile material is intended to cover any of these materials, and to cover any materials made from textile threads, or from leather, or from both these materials.

the materials which may be In connection with the impregnation of much less resistance than do untreated rope, and "said ropes are also preserved against dry rot, mildew, attack by barnacles, and other marine insects, and the like. Ropes so treated, are also particularly applicable for I with a homogeneous, molten mixture, solid at ordinary temperature, said mixture containing paraflin and a relatively small amount of naphthalene, and being free from hard materials. i

2. A process of treating textile materials which comprises subjecting the same to the action of a bath containing parafiin and naphthalene, maintained at a temperature above 212 F., and thereafter subjectingthe 1 same to the action of a bath containing paraflin and naphthalene at a temperature below 212 F., the amount of naphthalene in both these baths being much less than the amount of paraffin, and both baths being free from hard materials.

3. A process of treating rope which comprises subjecting the same to the action of a bath containing paraflin and naphthalene,

maintained at a temperature above 212 F, and thereafter subjecting the same to the action of a bath containing paraffin and naphthalene at a temperature below 212 F, the amount of naphthalene in both these baths being much less thanthe amount of paraffin, and both baths being free from hard materials.

4. A process 'of treating textile materials which comprises subjecting the same to the action of a bath containing paraffin and a relatively small amount of naphthalene, said bath being free from hard materials, at a temperature of from 240 to 260 F, removing the materials from the bath when the temperature has fallen somewhat.

-5. Textile material impregnated with a homogeneous mixture of parafiin and naphthalene, said mixture being solid at ordinary temperature and being free from hard materials, the proportion of naphthalene being relatively small.

6. Rope impregnated with a homogeneous mixture of parafiin and naphthalene, said mixture being solid at ordinary temperature and being free from hard materials, the. proportion of naphthalene being relatively small.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT ATHELSTAN MARE. Witnesses: P. C. WARNOD, Jn, CHESTER K. Scorn