CN109266794A - A kind of preparation method of leather fat - Google Patents

Abstract

The invention discloses a kind of preparation methods of leather fat, include the following steps: after Huangization You ﹑ Kuang Wu You ﹑ emulsifier and solvent are put into reaction kettle according to a certain percentage, after being stirred to react a period of time at a certain temperature, it is cooled under certain temperature again, PH=6~7 are neutralized to neutralizer, a certain amount of preservative is added, product leather fat is obtained after adding water to adjust, products obtained therefrom effective content is 60 ± 2%.Preparation method provided by the present invention is not only environmentally friendly, there is no the generation of waste water and exhaust gas, the product of high quality is also produced, realize clean manufacturing, the problems in leather greasing cannot be applied individually to any by efficiently solving sulfonated oil monomer, effect of the sulfonated oil in leather greasing is improved, glossy sense, the fullness, grain planarization of leather are improved, while also improving the overall economic efficiency that sulfonated oil is applied in the industry.

Description

A kind of preparation method of leather fat

Technical field

The invention belongs to leather agent production technical fields, and in particular to a kind of preparation method of leather fat.

Background technique

It experienced a series of manufacturing procedure from raw material skin to leather finish, wherein stuffing process is the key that process hides processing One of process, fatting agent are one of most commonly used leather chemicals in process hides process, it not only affects the rich of leather Full scale, flexibility and sense organ, and strong influence is generated to physical mechanical properties such as the tensile strength of leather, extensibility, very It can also assign the special service performance such as finished leather Water-proof and oil-proof, anti-pollution, fire-retardant, preventing atomization to by stuffing.

With the development of leather industry, leather fat is also had higher requirement, it, can by proper choice of fatting agent To change the perception and inherent quality of leather, its commodity value is significantly improved, but the fatting agent of one-component, performance has been difficult to completely The requirement of sufficient process hides processing, the developing state of Duo Zu Fen ﹑ performance fatting agent have tremendous development in field of leather.

Summary of the invention

The purpose of the invention is to overcome the deficiencies in the prior art, and provide a kind of environmental protection, cleaning, good product quality The preparation method of leather fat does not generate exhaust gas, waste water to atmosphere, while can increase economic efficiency again.

The object of the present invention is achieved like this: a kind of preparation method of leather fat includes the following steps: sulfonation After You ﹑ Kuang Wu You ﹑ emulsifier and solvent put into reaction kettle according to a certain percentage, it is stirred to react a period of time at a certain temperature Afterwards, it then is cooled under certain temperature, is neutralized to PH=6~7 with neutralizer, add a certain amount of preservative, obtained after adding water to adjust Product leather fat, products obtained therefrom effective content are 60 ± 2%.

Preferably, the mass ratio of the Huangization You ﹑ Kuang Wu You ﹑ emulsifier and solvent is 0.8~1.2:0.1~0.15: 0.08~0.1:0.01~0.02.

Preferably, the sulfonated oil is one of sulfonated oil SS, sulfonated oil RS- II, sulfonated oil FC or a variety of.

Preferably, the mineral oil is No. 15 white oils, in No. 26 white oils, No. 32 white oils, No. 26 machinery oil, No. 32 machinery oil It is one or more.

Preferably, the emulsifier is FMES fatty acid methyl ester sodium sulfonate of ethoxylated, AES fatty alcohol polyoxyethylene ether One of sodium sulphate, AESA fatty alcohol polyoxyethylene ether ammonium sulfate are a variety of.

Preferably, the solvent is ethylene glycol monobutyl ether or diethylene glycol monobutyl ether.

Preferably, it after Huangization You ﹑ Kuang Wu You ﹑ emulsifier and solvent being put into reaction kettle according to a certain percentage, is first warming up to 45~65 DEG C are stirred to react a period of time, then are cooled to 35 DEG C or so and are neutralized to PH=6~7 with neutralizer.

Preferably, the neutralizer is the sodium hydroxide solution of concentration 30%.

Preferably, the water is deionized water.

By adopting the above-described technical solution, the beneficial effects of the present invention are: preparation method provided by the present invention not only Environmental protection has also produced the product of high quality, has realized clean manufacturing, efficiently solved without the generation of waste water and exhaust gas Sulfonated oil monomer cannot be applied individually to any the problems in leather greasing, improve effect of the sulfonated oil in leather greasing, improve The glossy sense of leather, fullness, grain planarization, while also improving the overall economic efficiency that sulfonated oil is applied in the industry.

Specific embodiment

Below by embodiment, technical solution of the present invention is described in further detail.

Embodiment 1

In enamel reaction still, 200kg sulfonated oil SS is added, opens stirring and is warming up to 45 DEG C, stop heating, 10kg is added After FMES fatty acid methyl ester sodium sulfonate of ethoxylated and 6kg AES sodium sulfate of polyethenoxy ether of fatty alcohol, temperature is kept for 45 DEG C Stirring 30 minutes, be added No. 15 mineral oil of 10kg, keep temperature 45 C, continue stirring 20 minutes, cooling water temperature to 35 DEG C, 3kg ethylene glycol monobutyl ether is added, continues stirring 20 minutes, 2.0kg sodium hydroxide solution (concentration 30%) adjusting pH value, which is added, is 6.0,0.03kg Kathon preservative is added, 60kg deionized water is added, stirs 30 minutes, product leather fat must be added, through extracting It follows the example of and detects to obtain product effective content 60.2%.

Embodiment 2

In enamel reaction still, 160kg sulfonated oil FC is added, opens stirring and is warming up to 55 DEG C, stop heating, 6kg FMES is added After fatty acid methyl ester sodium sulfonate of ethoxylated and 3kg AESA fatty alcohol polyoxyethylene ether ammonium sulfate, temperature keeps 55 DEG C of stirrings 30 minutes, No. 26 mineral oil of 12kg are added, temperature is kept for 55 DEG C, continues stirring 20 minutes, and cooling water temperature is added to 35 DEG C 4kg diethylene glycol monobutyl ether continues stirring 20 minutes, and it is 6.5 that 3kg sodium hydroxide solution (concentration 30%), which is added, and adjusts pH value, adds Enter 0.03kg Kathon preservative, 46.6kg deionized water is added, stirs 30 minutes, product leather fat must be added, through extraction Detect to obtain product effective content 60.8%.

Embodiment 3

In enamel reaction still, 100kg sulfonated oil SS and 120kg sulfonated oil RS- II is added, opens stirring and is warming up to 65 DEG C, stop It only heats, 12kg FMES fatty acid methyl ester sodium sulfonate of ethoxylated and 7kg AES sodium sulfate of polyethenoxy ether of fatty alcohol is added Afterwards, it is kept for 65 DEG C of temperature stir 60 minutes, No. 32 machinery oil of 14kg is added, temperature is kept for 65 DEG C, continues stirring 30 minutes, cold But water is cooled to 35 DEG C, and 5kg diethylene glycol monobutyl ether is added, and continues stirring 20 minutes, and it is (dense that 3.5kg sodium hydroxide solution is added 30%) it is 7.0 that degree adjusts pH value, and 0.03kg Kathon preservative is added, and 62.5kg deionized water is added, and stirs 30 minutes, must add production Product leather fat detects to obtain product effective content 61.2% through extraction.

In above-described embodiment, the content of Huangization You ﹑ Kuang Wu You ﹑ emulsifier and solvent in product effective content, that is, product should The professional standard of effective content is 60 ± 2%.

Wherein, product effective content can detect to obtain by extraction, and experimental article has toluene method moisture teller, all scholars Woods, temperature automatically controlled electric furnace and beaker, the specific steps are as follows:

(1) analyzer is dry；

(2) beaker weighs a certain amount of leather fat, is added in analyzer flask, a certain amount of solvent (first is added as required Benzene) it mixes, a little float stone is added in flask, seals each analyzer interface with vaseline, prevents measurement inaccuracy；

(3) heating flask heats 2 hours to 120 DEG C, and the moisture content solvent way of distillation is removed, pure solute water is obtained, is read Leather fat product effective content is calculated in the scale of the solute water distilled out.

Here is the testing result of leather fat stability of emulsion obtained by above-described embodiment:

Wherein, it the measurement of 1:9 diluting emulsion stability: takes hot distilled water 90m1 to have in plug graduated cylinder in 100m1,10m1 sample is added Product, stopper bottle stopper, stir l min(up and down about 30 times) be sufficiently mixed shake up after stood in 25~35 DEG C of incubators for 24 hours, observation Its oil slick delamination, investigates the stability of its solution.

The wherein measurement of 1:2 diluting emulsion stability: it takes hot distilled water 80m1 to have in plug graduated cylinder in 100m1,20m1 is added Sample, stoppers bottle stopper, stirs l min(up and down about 30 times) shake up after stood for 24 hours in 25~35 DEG C of incubators, observe its oil slick Delamination investigates the stability of its solution.

Wherein, to 10% potassium chromium sulfate solution stability measurement: take distilled water 80m1 in 100m1 have plug graduated cylinder in, Sample 10m1 is added, stoppers bottle stopper, 10% potassium chromium sulfate solution 10ml is added after shaking up, stir l min(up and down about 30 times) 4h is stood in 25~35 DEG C of incubators after shaking up, its oil slick delamination is observed, investigates the stability of its solution.

Wherein, it the measurement to the stability of 1mol/L hydrochloric acid solution: takes distilled water 80m1 to have in plug graduated cylinder in 100m1, adds Enter sample 10m1, stopper bottle stopper, the hydrochloric acid solution 10ml of 1mol/L is added after shaking up, stir l min(up and down about 30 times) it shakes 4h is stood in 25~35 DEG C of incubators after even, its oil slick delamination is observed, investigates the stability of its solution.

Wherein, it the measurement to the stability of 1mol/L ammonium hydroxide: takes distilled water 80m1 to have in plug graduated cylinder in 100m1, sample is added Product 10m1, stoppers bottle stopper, and the ammonia spirit 10ml of 1mol/L is added after shaking up, and stirs l min(up and down about 30 times) shake up after 4h is stood in 25~35 DEG C of incubators, its oil slick delamination is observed, investigates the stability of its solution.

Here is one provided by the invention and uses comparative example, the specific steps are as follows:

(1) it neutralizes: being put into 4 pieces of sheepskin chrome leather sample No.1s, No. two, No. three, No. four in 4 rotary drums, be separately added into skin sample matter 35 DEG C of water of amount 200%, adds the sodium bicarbonate of skin sample quality 0.8%, turns 20min, the pH value of bath foam in rotary drum is made to reach 5.5 Between~6.0；

(2) it washes: 25 DEG C of water of skin sample quality 300% is added, wash emulsion oil-filling after 10min, add respectively in 4 rotary drums Enter gained leather in 55 DEG C of water of skin sample quality 200% and the sulfonated oil monomer RS- II of skin sample quality 15%, Examples 1 to 3 to add Rouge agent after turning 60min, is separately added into the formic acid of skin sample quality 0.5%, turns 15min, then is separately added into the first of skin sample quality 0.5% Acid turns 30min, looks into PH=3.5~3.8 of bath foam in rotary drum, and leather sample, which is washed out, to be roused, dry；

(3) it detects: to 4 pieces of sheepskin chrome leather sample No.1s obtained by step (2), No. two, No. three, No. four progress thickness and tensile strength Detection, experimental result are as follows:

Sheepskin chrome leather sample	No.1	No. two	No. three	No. four
					Thickness (mm)	0.75	0.8	0.78	0.82
Flexibility	Generally	It is softer	It is soft	It is soft
					Glossy sense	Generally	It is relatively strong	It is relatively strong	By force
Tensile strength (N/m ㎡)	9.7	10.3	10.2	10.5
					Ductility	Generally	It is relatively strong	It is relatively strong	By force

It can be seen that present invention gained leather fat good emulsion stability, product quality is high, while can efficiently solve Sulfonated oil monomer is applied individually to any the undesirable problem of service performance present in leather greasing, improves sulfonated oil and adds in leather Using effect in rouge improves glossy sense, the fullness, grain planarization of leather.

Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, although Referring to above-described embodiment, invention is explained in detail, it should be understood by a person of ordinary skill in the art that still may be used With modifications or equivalent substitutions are made to specific embodiments of the invention, and repaired without departing from any of spirit and scope of the invention Change or equivalent replacement, is intended to be within the scope of the claims of the invention.

Claims (9)

1. a kind of preparation method of leather fat, which comprises the steps of: by Huangization You ﹑ Kuang Wu You ﹑ emulsifier After putting into reaction kettle according to a certain percentage with solvent, after being stirred to react a period of time at a certain temperature, then it is cooled to certain temperature Under degree, PH=6~7 are neutralized to neutralizer, add a certain amount of preservative, obtain product leather fat, institute after adding water to adjust Obtaining product effective content is 60 ± 2%.

2. the preparation method of leather fat according to claim 1, it is characterised in that: the Huangization You ﹑ Kuang Wu You ﹑ cream The mass ratio of agent and solvent is 0.8~1.2:0.1~0.15:0.08~0.1:0.01~0.02.

3. the preparation method of leather fat according to claim 1, it is characterised in that: the sulfonated oil is sulfonated oil One of SS, sulfonated oil RS- II, sulfonated oil FC or a variety of.

4. the preparation method of leather fat according to claim 1, it is characterised in that: the mineral oil is No. 15 white One of oil, No. 26 white oils, No. 32 white oils, No. 26 machinery oil, No. 32 machinery oil are a variety of.

5. the preparation method of leather fat according to claim 1, it is characterised in that: the emulsifier is FMES fat Sour methyl esters sodium sulfonate of ethoxylated, AES sodium sulfate of polyethenoxy ether of fatty alcohol, in AESA fatty alcohol polyoxyethylene ether ammonium sulfate It is one or more.

6. the preparation method of leather fat according to claim 1, it is characterised in that: the solvent is ethylene glycol only son Ether or diethylene glycol monobutyl ether.

7. the preparation method of leather fat according to claim 1, it is characterised in that: emulsify Huangization You ﹑ Kuang Wu You ﹑ After agent and solvent put into reaction kettle according to a certain percentage, first it is warming up to 45~65 DEG C and is stirred to react a period of time, then be cooled to 35 DEG C or so be neutralized to PH=6~7 with neutralizer.

8. the preparation method of leather fat according to claim 1, it is characterised in that: the neutralizer is concentration 30% Sodium hydroxide solution.

9. the preparation method of leather fat according to claim 1, it is characterised in that: the water is deionized water.