CN107489035B - A kind of preparation method of red warning garment material - Google Patents

Abstract

The invention discloses a preparation method of a red warning clothing fabric. By improving the formula and preparation process of fluorescent paint, and the application of the fluorescent coating on cotton fabrics, the prepared red warning clothing fabric is more effective in warning than existing products. The effect and comfort have been significantly improved. At the same time, it meets the red standard requirements of "High Visibility Warning Clothing for Occupation" and can meet the requirements of 30 washings.

Description

A kind of preparation method of red warning clothing fabric

Technical field:

The invention relates to a preparation method of a fabric, in particular to a preparation method of a red warning clothing fabric.

Background technique:

At present, the commonly used warning clothing is mainly made of orange-red ordinary fluorescent paint-coated polyester fabrics, and the quality is uneven. There are generally problems such as insufficient fluorescence of substrate fabrics, low brightness coefficient and poor visibility of reflective decorative materials. The visual performance of new clothes meets the requirements, but due to the nature of study and work, children and sanitation personnel tend to change and wash more frequently, while traditional fluorescent paints generally have shortcomings such as poor reflectivity, poor washability, and poor moisture absorption and breathability. Its warning effect is reduced, or even no warning effect, which easily leads to the occurrence of traffic accidents. After testing, after 15 to 20 times of normal washing, its warning effect at night will be significantly reduced; after 30 times of washing, it will almost lose the warning effect. In addition, warning clothing made of ordinary coating and polyester fabrics often increases the physical and psychological burden of the wearer due to its poor hygroscopicity, airtightness, and hard feel, and has poor wearing comfort.

Invention content:

The object of the present invention is to provide a preparation method of a red warning clothing fabric with good warning effect and good comfort (washable resistance, good moisture absorption, and good air permeability).

The technical scheme that the present invention adopts for realizing the above-mentioned purpose is as follows:

A preparation method of red warning clothing fabric is characterized in that, comprises the following steps:

(1), prepare fluorescent red powder:

First weigh SrCO ₃ , Ce ₂ (CO ₃ ) ₃ , La ₂ O ₃ into a beaker, add HNO ₃ to dissolve it completely, and obtain clear and transparent Sr(NO ₃ ) ₂ , La(NO ₃ ) ₃ and Ce(NO ₃ ) ₃ mixed solution. Add citric acid and stir in the above solution, after it is completely dissolved, add polyethylene glycol, stir evenly to form a transparent solution, then add water/ethanol mixed solution to the beaker, add H ₃ BO ₃ after mixing evenly, and fully stir and mix , to obtain a transparent sol precursor; set the temperature to 80 °C, fully heat and stir, and obtain a white gel after about 30 minutes, put the gel in an oven at 80 °C to dry for 24 hours, and age it into a dry gel. The glue was transferred to a small crucible, and placed in a muffle furnace to heat up to 500 °C, calcined for 2 hours, and then taken out after natural cooling. The sample was placed in a mortar and fully ground. After obtaining fluorescent red powder samples;

The silane coupling agent KH-570 and fluorescent red powder samples were fully hydrolyzed in a water/ethanol solution with a pH value of 3.5 to 4.0, slowly added to a round-bottomed flask, stirred at 30 °C for 30 min, left to react for 12 h, and pumped. Filter, wash, and then use a high-efficiency horizontal nano-sand mill to grind, and filter to obtain fluorescent red powder;

(2), the preparation of fluorescent red paint:

formula:

Preparation method: Weigh the fluorescent red powder, add sodium lignosulfonate, sodium methylene dimethyl disulfonate, ethylene glycol, trihydroxyaminomethane and deionized water, at 80 ° C, the rotating speed of 500 rpm / min. Under the condition of full stirring for 45-60min, then placed at room temperature for 4 hours, then transferred to a sand mill for 2min grinding, the sand mill rotates at 3000 rpm, and then filtered twice with filter paper to obtain fluorescent red paint;

(3), the preparation of red warning clothing fabrics:

Soak the fluorescent red paint, modifier, penetrant and pure cotton fabric in water at 30°C, adjust the pH of the solution to 7-8, heat up to 70-100°C at a rate of 2°C/min, add acrylic resin, and dye for 60min. After dyeing, the cotton fabric is taken out, washed with water and dried to prepare a red warning clothing fabric.

Further settings are:

In step (1), the mass percentages of silane coupling agent KH-570, phosphor powder, ethanol and water are 20-50%, 20%, 15% and 15-45%.

In step (2), the proportioning of fluorescent red paint is:

In step (3), the modifier is trimethoxysilylpropyl dodecyldimethylammonium chloride.

In step (3), the penetrant is JFC.

In step (3), the consumption of fluorescent paint is 6% of the weight of the fabric, the consumption of the modifier is 25% of the weight of the fabric, and the consumption of the acrylate is 10% of the weight of the fabric.

In step (3), the dyeing temperature is 80°C.

The beneficial effects of the present invention are as follows:

The invention improves the formulation and preparation process of the fluorescent paint, as well as the application of the fluorescent paint on cotton fabrics, and the prepared red warning clothing fabric is better than the existing products in terms of warning effect, comfort (washing resistance, moisture absorption, air permeability) ) and other aspects have been significantly improved, as shown in Table 4 and Table 5.

(1) Preparation of high-visibility and water-washable fluorescent red paint: fluorescent red powder containing rare earth elements is prepared by sol-gel method, which has high luminous intensity; in order to improve the luminescence stability of fluorescent powder, silane coupling is used. Using the agent coating technology to prepare fluorescent red powder, thus improving the stability of fluorescent coatings.

(2) Application of high-visibility and wash-resistance fluorescent red paint on cotton fabrics: The high-visibility wash-resistance fluorescent red paint is applied to pure cotton fabrics by dip-dyeing process. The dyed cotton fabric has good moisture absorption and air permeability, and at the same time meets the red standard requirements of "High Visibility Warning Clothing for Occupation", and can meet the requirements of 30 times of washing.

The present invention will be further described below in conjunction with specific embodiments.

Detailed ways:

Basic example:

A preparation method of a red warning clothing fabric of the present invention comprises the following steps:

(1) Preparation of fluorescent red powder by sol-gel method:

First accurately weigh SrCO ₃ 0.8858g, Ce ₂ (CO ₃ ) 0.0092g, La ₂ O ₃ 0.6451g into a beaker, add an appropriate amount of HNO ₃ to dissolve it completely, and obtain clear and transparent Sr(NO _{3 ) 2} , La(NO ₃ ) ₃ and Ce(NO ₃ ) ₃ mixed solution. Add 4.2028g of citric acid and stir in the above solution. After it is completely dissolved, add 4.0000g of polyethylene glycol 10000, stir evenly to form a transparent solution, and then add 20mL of water-ethanol mixed solution to the beaker. After mixing well, add 0.5094g H ₃ BO ₃ . Fully stirring and mixing, the transparent sol precursor can be obtained. Set the temperature to 80 °C, fully heat and stir, and obtain a white gel after about 30 min. Dry the gel in an oven at 80 °C for 24 h to age it into a dry gel. It was placed in a muffle furnace and heated to 500 °C, calcined for 2 hours, taken out after natural cooling, and the sample was fully ground in a mortar.

Weigh a certain amount of silane coupling agent KH-570 and samples, fully hydrolyze them in a water/ethanol solution with a pH value of 3.5 to 4.0, slowly add them to a round-bottomed flask, stir at 30°C for 30 minutes, and then stand for 12 hours. Suction filtration and washing. Then, use a high-efficiency horizontal nano-sand mill for grinding, and filter to obtain fluorescent red powder.

(2), the preparation of fluorescent red paint:

Weigh fluorescent red powder with a mass fraction of 3-40%, add sodium lignosulfonate with a mass fraction of 5-50%, a certain mass of sodium methylene dimethyl disulfonate, ethylene glycol, trihydroxyaminomethane and Deionized water, fully stirred for 45-60 minutes at 80°C and rotating speed of 500 rpm, then placed at room temperature for 4 hours, and then transferred to a sand mill for 2 minutes of grinding, and the speed of the sand mill was 3000 rpm/min, and then Fluorescent red paint can be obtained by filtering twice with filter paper.

(3) Application of fluorescent red paint on cotton fabrics:

Soak a certain quality of fluorescent paint, modifier (trimethoxysilylpropyl dodecyl dimethyl ammonium chloride), a certain quality of penetrant JFC and pure cotton fabric in water at 30 °C to adjust the pH of the solution The value is 7-8, heat up to 70-100 ℃ at a rate of 2 ℃/min, add a certain quality of acrylic resin, dye for 60 minutes, take out the cotton fabric after dyeing, wash and dry. The dyed cotton fabric has excellent fluorescent properties and washing resistance, and the color fastness to soaping reaches grade 5; and it has good moisture absorption and air permeability. In addition, its color value and brightness coefficient β can meet the red standard requirements of "High Visibility Warning Clothing for Occupational Use", and can meet the requirements of 30 washings.

Alternative Example 1:

The preparation method is the same as the basic example, the difference lies in: adjusting the proportion and preparation process of the fluorescent red powder in step (1), and detecting the influence of the mass ratio of the silane coupling agent and the fluorescent red powder sample on the relative fluorescence intensity, as shown in Table 1 shown.

Table 1. Influence of the mass ratio of silane coupling agent and phosphor on the relative fluorescence intensity

Alternative Example 2:

The preparation method is the same as the basic example, except that: the preparation process and conditions of the fluorescent red paint in the adjustment step (2), and the influence of the paint preparation conditions on the performance of the fluorescent red paint, as shown in Table 2.

Table 2. Influence of preparation conditions on the properties of fluorescent red coatings

Alternative Example 3:

The preparation method is the same as the basic example, except that the application process of the fluorescent red paint on the cotton fabric in step (3) is adjusted, and the influence of the dyeing process on the properties of the pure cotton fabric is tested, as shown in Table 3.

Table 3. Influence of dyeing process on K/S value and fluorescent properties of pure cotton fabrics

Note: The weight percentage in Table 3 refers to the weight percentage of the fabric.

As shown in Table 3, when the amount of fluorescent paint is 6% of the weight of the fabric, the amount of the modifier is 25% of the weight of the fabric, the amount of acrylate is 10% of the weight of the fabric, and the dyeing temperature is 80 ℃, the prepared The brightness coefficient of the product is the best, and the K/S value of the fabric is high.

Summarize:

The invention improves the formulation and preparation process of the fluorescent paint, as well as the application of the fluorescent paint on cotton fabrics, and the prepared red warning cotton fabric clothing fabric is better than the existing products in terms of warning effect, comfort (washing resistance, moisture absorption, Air permeability) and other aspects have been significantly improved, as shown in Table 4 and Table 5.

(1) Preparation of high-visibility and water-washable fluorescent red paint: fluorescent red powder containing rare earth elements is prepared by sol-gel method, which has high luminous intensity; in order to improve the luminescence stability of fluorescent powder, silane coupling is used. Using the agent coating technology to prepare fluorescent red powder, thus improving the stability of fluorescent coatings.

(2) Application of high-visibility and wash-resistance fluorescent red paint on cotton fabrics: The high-visibility wash-resistance fluorescent red paint is applied to pure cotton fabrics by dip-dyeing process. The dyed cotton fabric has good moisture absorption and air permeability, and at the same time meets the red standard requirements of "High Visibility Warning Clothing for Occupation", and can meet the requirements of 30 times of washing.

Table 4, the performance detection of the red warning clothing fabric prepared by the present invention:

Table 5. Performance testing of commercially available red fluorescent polyester fabrics:

Claims (5)

1. a preparation method of red warning clothing fabric, is characterized in that, comprises the following steps: (1), prepare fluorescent red powder: First, weigh SrCO ₃ , Ce ₂ (CO ₃ ) ₃ , La ₂ O ₃ into a beaker, add HNO ₃ to dissolve it completely, and obtain clear and transparent Sr(NO ₃ ) ₂ , La(NO ₃ ) ₃ and Ce(NO ₃ ) ₃ mixed solution; add citric acid and stir in the above solution, add polyethylene glycol after being completely dissolved, stir evenly to make it form a transparent solution, then add water/ethanol mixed solution to the beaker, after mixing evenly Add H ₃ BO ₃ , stir and mix thoroughly to obtain a transparent sol precursor; set the temperature to 80°C, fully heat and stir, obtain a white gel after about 30 minutes, and place the gel in an oven at 80°C to dry for 24 hours to make it Aging into a dry gel, transfer the dry gel to a small crucible, and place it in a muffle furnace to heat up to 500 ° C, calcinate for 2 hours, take it out after natural cooling, place the sample in a mortar and fully grind it, and continue to grind the powder. The temperature was raised to 1000 ℃ and calcined for 6 h, and the fluorescent red powder sample was obtained after natural cooling; The silane coupling agent KH-570 and fluorescent red powder samples were fully hydrolyzed in a water/ethanol solution with a pH value of 3.5 to 4.0, slowly added to a round-bottomed flask, stirred at 30 °C for 30 min, left to react for 12 h, and pumped. Filter, wash, and then use a high-efficiency horizontal nano-sand mill to grind, and filter to obtain fluorescent red powder; In step (1), the mass percentages of silane coupling agent KH-570, fluorescent red powder, ethanol and water are 20-50%, 20%, 15%, 15-45%; (2) Preparation of fluorescent red paint: formula: Sodium lignosulfonate 5～50% Fluorescent red powder 3～40% Sodium methylene dimethyl disulfonate 6% Ethylene glycol 4% Trishydroxyaminomethane 1% Deionized water balance; Preparation method: Weigh the fluorescent red powder, add sodium lignosulfonate, sodium methylene dimethyl disulfonate, ethylene glycol, trihydroxyaminomethane and deionized water, at 80 ° C, the rotating speed of 500 rpm / min. Under the condition of full stirring for 45-60min, then placed at room temperature for 4 hours, then transferred to a sand mill for 2min grinding, the sand mill rotates at 3000 rpm, and then filtered twice with filter paper to obtain fluorescent red paint; (3) Preparation of red warning clothing fabrics: Soak the fluorescent red paint, modifier, penetrant and pure cotton fabric in water at 30°C, adjust the pH of the solution to 7-8, heat up to 70-100°C at a rate of 2°C/min, add acrylic resin, and dye for 60min. After dyeing, the cotton fabric is taken out, washed and dried to obtain a red warning clothing fabric; In step (3), the modifier is trimethoxysilylpropyl dodecyldimethylammonium chloride. 2. The preparation method of a red warning clothing fabric according to claim 1, characterized in that: in step (2), the proportion of fluorescent red paint is: Sodium lignosulfonate 45% Fluorescent Red Powder 25% Sodium methylene dimethyl disulfonate 6% Ethylene glycol 4% Trishydroxyaminomethane 1% Deionized water balance. 3 . The method for preparing a red warning clothing fabric according to claim 1 , wherein in step (3), the penetrant is JFC. 4 . 4. The preparation method of a red warning clothing fabric according to claim 1, characterized in that: in step (3), the consumption of fluorescent paint is 6% of the weight of the fabric, and the consumption of the modifier is 6% of the weight of the fabric 25%, the dosage of acrylate is 10% of the fabric weight. 5 . The preparation method of a red warning clothing fabric according to claim 1 , wherein the dyeing temperature is 80° C. 6 .