CS272149B1 - Lubrication for glass fibres surface treatment intended for volumetry - Google Patents

Abstract

The solution relates to the optimal composition a lubrication that allows for simplification volume process equipment qualitative parameters of volume glass silk and subsequent textile processing from bulky fibers. The lubrication composition range is shown containing as lubricating ingredients paraffin, stearin, bearing and transformer oil, emulsifier based on ethylene oxide, a binder based on animal protein, - a polyester-based plasticizer resin; based on silane and the remainder is water.

Description

The invention relates to a lubricant for the surface treatment of glass fibers to be bulk. The lubricant comprises lubricating components based on mineral oils and waxes, an emulsifier based on ethylene oxide, a binder based on animal proteins, a softening component based on polyester resin, a reinforcing component based on silane and water. , in the production of bulk glass silk, strands of glass fibers are commonly used and these strands are composed of a so - called core and a sheath. The core and cover are made of the same type of glass, they can have different or even the same micro-weight. However, different lubricants are used on the core and casing. Core glass strands are usually protected by a surface treatment using lubrication based on oils, waxes and glue. Packaging strands are usually protected by polyvinyl acetate lubrication.

However, despite the demanding technical equipment of the bulking device, the parameters of bulked glass silk required by these lubrications are not achieved. In particular, the required surface coverage of insulating glass fabrics in the textile processing of bulk glass silk is not achieved. A significant disadvantage is the high dustiness when using a lubrication based on polyvinyl acetate on packaging springs, t

Various types of oil lubricants are known. For example, in Czechoslovakia. Author's certificate No. 200960 describes oil lubrication for the treatment of glass fibers, containing an oil-in-water emulsion, based on oils, fats, possibly waxes and other textile preparations. The lubricant contains the addition of 0.1 to 10% by weight of mineral acid addition salts or saturated aliphatic monocarboxylic acids. This lubrication is designed for glass silk, provided with a protective twist and increases the tensile strength and stability of the lubrication when winding glass silk on pneumatic nozzle looms.

In Czechoslovakia. Certificate No. 204825 discloses a composition for coating glass fibers based on colloidal animal proteins or starches, further comprising lubricating agents, an emulsifier and water. The lubricant contains the addition of 0.1 to 1.5% of silylated polyazaamide. This lubrication is intended primarily for spinning and is suitable for the surface treatment of core glass containers. The use of this lubrication alone in a given concentration does not make it possible to achieve the desired bulking effect of glass bulked silk.

The object of the present invention is to find the optimal composition of one lubricant, which would replace two different lubricants for the surface treatment of core and casing glass strands while maintaining the desired properties of bulk glass silk.

This object is achieved by the lubricants according to the invention, which comprise lubricating components based on mineral oils and waxes, an emulsifier based on ethylene oxide, a binder based on animal proteins and other textile preparations, namely a softening component based on polyester resin and a reinforcing component based on silane. The rest of the lubrication is water. The essence of the present invention is that the lubrication contains in parts by weight 0.43 to 0.87 paraffin, 0.17 to 0.34 stearin, 0.34 to 0.69 bearing oil, 0.28 to 0.57 transformer oil , 0.9 to 1.1 of a nonionic fatty alcohol adduct with ethylene oxide, 0.34 to 0.78 of animal proteins, preferably glue and gelatin, 0.12 to 0.25 of a polyester resin with a resin content of at least 36% by weight in the dry matter, 0.05 to 0.09 50% solution of silane in methanol. The remainder up to 100 parts by weight is water. ·

Said optimal composition of lubrication allows the production of bulk glass silk of the desired structure with a high effect of the bulking process while maintaining the desired physical properties, especially tensile strength. The optimal concentration range of the individual components of the lubrication allows a substantial simplification of the surface treatment of the glass strands by replacing two different types of lubrications and also allows a substantial simplification of the structural arrangement of the volumetric device. During bulking and subsequent textile processing on looms, this is achieved by using this lubrication

OS 272149 B1 significantly reduces the dustiness by at least 50%, thus improving the working environment and hygienic conditions of the operator. Lubrication also makes it possible to obtain glass silk with a high surface coverage of the glass fabric obtained from this silk by textile technique.

An exemplary embodiment of the invention is described below, the contents of the individual lubricant components being given in parts by weight.

Example of lubricating component: parts by weight paraffin 0.72 stearin 0.28 bearing oil 0.57 transformer oil 0.47 emulsifier:

nonionic fatty alcohol adduct with ethylene oxide at an ethylene oxide content of 75 and 3% by weight1.00 binder: glue 0.28 gelatin 0.28 emollient:

Polyester resin containing by weight in the dry matter0,20

% solution of silane in methyl alcohol 0.08 water96.12

In an exemplary embodiment, paraffin was used in a mixture of predominantly solid paraffinic hydrocarbons, according to CSN. 65 71 01, and stearin in a mixture of higher fatty acids, especially palmitic and stearic acids, according to ON No. 68 19 10, Furthermore, bearing oil according to ČSN δ was used. 65 66 11, which are common refined oils intended for short-term lubrication purposes and technological purposes. The transformer oil used complies with ČSN δ. 65 68 45 and it is an uninhibited mineral oil without water and mechanical impurities. Silylated polyazaamide with 2% active silicon was used as emulsifier. The glue used complied with ČSN δ. 66 85 21 and gelatin ČSN δ. 65 85 26,

Lubrication preparation

In the steam-heated duplicator, ee, after prior weighing, partially melts the mixture of paraffin, stearin, bearing oil, transformer oil and emulsifier. Then ee starts the stirrer with bidirectional stirring. After reaching a temperature of 95-100 ° C, this temperature is maintained with constant stirring for another half hour, whereby a homogeneous melt is formed.

The emulsification is carried out with water at 50 to 60 ° C warm in the range of 1/3 of the volume of the duplicator. During emulsification, the steam supply is closed. It is advisable to change the direction of rotation of the stirrer. After the emulsion is formed, the duplicator is made up to 2/3 of its volume with cold water. Then stand still

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CS 272149 B1 with the addition of a prepared solution of glue, gelatin and cold water-diluted polyester resin and subsequently a hydrolysed solution of eilane * The contents are made up to the specified amount and the prepared lubricant is mixed *

Claims (1)

Lubricants for the surface treatment of glass fibers to be embraced, comprising lubricating a component based on mineral oils and waxes, an emulsifier based on ethylene oxide, a binder based on animal proteins, a plasticizer component based on polyester resin, a reinforcing component based on eilane and water, characterized in that contains in parts by weight 0.43 to 0.87 paraffin, 0.17 to 0.34 stearin, 0.34 to 0.69 bearing oil, 0.28 to 0.57 transformer oil, 0.9 to 1.1 non-ionic fatty alcohol adduct b with ethylene oxide, 0.34 to 0.78 animal proteins, preferably glue and gelatin, 0.12 to 0.25 polyester resin with a resin content of at least 36% by weight, 0.05 to 0.09 50% eilane solution in methyl alcohol and the remainder up to 100 parts by weight is water.