CN103666280A

CN103666280A - Polishing wax emulsion for leather finishing and preparation method thereof

Info

Publication number: CN103666280A
Application number: CN201310563477.6A
Authority: CN
Inventors: 王顺平; 白清泉; 冯练享
Original assignee: QIHE LEAHOU CHEMICAL INDUSTRY Co Ltd
Current assignee: QIHE LEAHOU CHEMICAL INDUSTRY Co Ltd
Priority date: 2013-11-07
Filing date: 2013-11-07
Publication date: 2014-03-26
Anticipated expiration: 2033-11-07
Also published as: CN103666280B

Abstract

The invention provides a polishing wax emulsion for leather finishing and a preparation method thereof. The preparation method comprises the following steps: (1) putting 3.5-4.6% of oxidized petroleum wax, 1.4-1.9% of lignite wax, 3.3-4.8% of rice bran wax, 5.5-6.5% of paraffin, 8.4-10.8% of comprehensive wax emulsifier, 0.5-1.5% of co-emulsifier and 1.0-1.5% of sodium hydroxide solution into a reaction kettle, and heating to 100 DEG C, thus melting the materials; (2) starting to stir, controlling the rotation speed to be 85 r/min, and ensuring that the materials are uniformly mixed; (3) turning on cooling water, reducing the temperature in the reaction kettle to 90 DEG C, adding distilled water (95 DEG C) accounting for 50% of the total amount into the reaction kettle, increasing the stirring speed to 400 r/min, and emulsifying for 40-50 minutes; (4) reducing the temperature to 60 DEG C, adding the residual distilled water (60 DEG C) into the reaction kettle, ensuring that the stirring speed is 800 r/min, and emulsifying for 60-75 minutes; and (5) reducing the temperature to 35 DEG C, further stirring for 30-40 minutes, filtering, and discharging. The prepared leather polishing wax emulsion can increase the gloss of the leather, improve the hand feeling of the leather and reinforce the wear resistance of the leather.

Description

A kind of buffing wax emulsion for leather finish and preparation method thereof

Technical field

The present invention relates to the preparation method of cerate for leather finish, more particularly, that the present invention relates to is a kind of preparation method of the buffing wax emulsion for leather finish.

Background technology

Emulsifying wax in leather industry mainly as leather finish auxiliary agent, for the end,, top is coated with, and has good performance.

Wax had both had the general character of water-repellancy and oilness, had again the characteristic such as oiliness, viscosity, fragility, toughness, fusibleness and gloss aspect, had to each other a great difference.As paraffin, there is the advantages such as dryness, glossiness and the transparency, but that its shortcoming is film is more crisp; Beeswax has good toughness, but because of place of production difference difference in quality larger; The features such as it is high that carnauba wax and Insect Wax have fusing point, and hardness is large, wipes luminance brightness good, and oil number is large, easy emulsification.

In actual applications, a kind of wax can not have and meets the needed all character of a certain specific end use.Therefore, when selecting leather finish to use the raw material of emulsifying wax, consider the use properties of wax, improve the covering with paint performance of leather finish.

Summary of the invention

The preparation method who the object of this invention is to provide a kind of buffing wax emulsion for leather finish, obtain remarkable back cover and polishing, burn effect, and can obtain hand feel and drape after hot iron, sense organ nature, the covering with paint style that surface is fine and smooth, to make up the deficiencies in the prior art.

For achieving the above object, the technical solution used in the present invention is:

(1) by oxidized petroleum wax 3.5%～4.6%, montanin wax 1.4%～1.9%, rice bran wax 3.3%～4.8%, paraffin 5.5%～6.5%, comprehensive wax emulsifying agent 8.4%～10.8%, assistant for emulsifying agent 0.5%～1.5%, oxygen sodium oxide 1.0%～1.5% is placed in reactor, is heated to 100 ℃ and makes its thawing.

(2) open and stir, control rotating speed at 85r/min, make mixing of materials even.

(3) open water coolant, make reactor temperature be reduced to 90 ℃, in reactor, add the distilled water (95 ℃) that accounts for total amount 50%, improve stirring velocity 400r/min, emulsification times is 40～50 minutes

(4) temperature is reduced to 60 ℃, in reactor, adds remaining distilled water (60 ℃), stirring velocity is at 800r/min, and emulsification times is 60～75 minutes.

(5) temperature is reduced to 35 ℃, continues to stir 30～40 minutes, filter discharging.

The gloss that this leather buffing wax emulsion can improve leather, improves leather hand feeling, strengthens leather wear resistance.

Embodiment

Below by embodiment, the present invention is specifically described.

Embodiment 1

By oxidized petroleum wax 3.8%, montanin wax 1.9%, rice bran wax 3.5%, paraffin 5.9%, comprehensive wax emulsifying agent 9.6%, assistant for emulsifying agent 1.2%, sodium hydroxide 1.5% is placed in reactor, is heated to 100 ℃ and makes its thawing.Open and stir, control rotating speed at 85r/min, make mixing of materials even.Control 90 ℃ of temperature, in reactor, add the hot water (95 ℃) that accounts for total amount 50%, improve stirring velocity 400r/min, emulsification times is 40 minutes.Temperature is reduced to 60 ℃, in reactor, adds the hot water (60 ℃) that accounts for total amount 22.6%, stirring velocity is at 800r/min, and emulsification times is 65 minutes.Temperature is reduced to 35 ℃, continues to stir 35 minutes, filter discharging.

Embodiment 2

By oxidized petroleum wax 3.5%, montanin wax 1.5%, rice bran wax 3.7%, paraffin 5.8%, comprehensive wax emulsifying agent 9.0%, is placed in reactor, is heated to 100 ℃ and makes its thawing.Open and stir, control rotating speed at 85r/min, make mixing of materials even.Control 90 ℃ of temperature, in reactor, add the hot water (95 ℃) that accounts for total amount 50%, improve stirring velocity 400r/min, emulsification times is 40 minutes.Temperature is reduced to 60 ℃, in reactor, adds the hot water (60 ℃) that accounts for total amount 24.3%, stirring velocity is at 800r/min, and emulsification times is 65 minutes.Temperature is reduced to 35 ℃, continues to stir 35 minutes, filter discharging.

Claims

1. buffing wax emulsion for leather finish and preparation method thereof, it comprises the component of following weight proportioning:

Described oxidized petroleum wax is the oxide compound of refined paraffin wax, montanin wax is deep processed product essence wax, rice bran wax is deep processed product essence wax, paraffin is refined paraffin wax, comprehensive wax emulsifying agent is nonionogenic tenside, by polyoxyethylene sorbitan fatty acid ester, and fatty alcohol-polyoxyethylene ether form, wherein said polyoxyethylene sorbitan fatty acid ester is polyoxyethylene sorbitan fatty acid ester (80), is (60), fatty alcohol-polyoxyethylene ether is fatty alcohol-polyoxyethylene ether (9), assistant for emulsifying agent is positive Lauryl Alcohol and/or positive 16 carbon alcohol, sodium hydroxide solution mass percent is 15%.

2. a kind of buffing wax emulsion for leather finish according to claim 1, its processing step is:

(1) by oxidized petroleum wax 3.5%～4.6%, montanin wax 1.4%～1.9%, rice bran wax 3.3%～4.8%, paraffin 5.5%～6.5%, comprehensive wax emulsifying agent 8.4%～10.8%, assistant for emulsifying agent 0.5%～1.5%, sodium hydroxide solution 1.0%～1.5% is placed in reactor, is heated to 100 ℃ and makes its thawing;

(2) open and stir, control rotating speed at 85r/min, make mixing of materials even;

(3) open water coolant, make reactor temperature be reduced to 90 ℃, in reactor, add the distilled water (95 ℃) that accounts for total amount 50%, improve stirring velocity 400r/min, emulsification times is 40～50 minutes;

(4) temperature is reduced to 60 ℃, in reactor, adds remaining distilled water (60 ℃), stirring velocity is at 800r/min, and emulsification times is 60～75 minutes;