Polyester cotton soft silicone oil and preparation method thereof

Abstract

The invention relates to the technical field of dyeing and finishing processing, and discloses polyester cotton soft silicone oil and a preparation method thereof. The polyester cotton soft silicone oil is prepared from the following raw materials in parts by mass: 0.5 to 5 parts of polyether amine, 0.1 to 1 part of tetraethylenepentamine, 20 to 43 parts of epoxy-terminated polyether silicone oil, 10 to 30 parts of an organic solvent, 1 to 3 parts of a nonionic surfactant, 0.1 to 0.3 part of organic acid and 30 to 50 parts of deionized water. According to the polyester-cotton soft silicone oil and the preparation method thereof, the prepared polyester-cotton soft silicone oil can be used for finishing and processing fabrics, and the softness and fineness of the fabrics are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of dyeing and finishing, in particular to a polyester-cotton softening silicone oil and a preparation method thereof. Background Art

[0002] Polyester-cotton fabric is a blended chemical fiber fabric of cotton and polyester. It is a kind of chemical fiber clothing fabric used very much in daily life. Its advantages are also remarkable, such as strong wear resistance, good wrinkle resistance, good breathability, easy care, upright and wrinkle-free, and bright color. Therefore, it is mostly used in various clothing, home textiles and other fields, such as T-shirts, shirts, winter thermal underwear, bed sheets, quilt covers, etc. In recent years, polyester-cotton fabrics have been used more and more in life, such as autumn and winter sweatshirts, T-shirts and base shirts, and can also be made into dresses, winter casual pants, etc., and heavy ones can be chosen in winter. A new type of polyester-cotton soft silicone oil can give polyester-cotton fabrics a soft and elastic feel, making the fabric bony and textured, thereby improving the grade of polyester-cotton fabrics and meeting the needs of various styles in the market.

[0003] A new type of polyester-cotton soft silicone oil is obtained by polycondensation of small and medium molecular weight end epoxy silicone oil and difunctional polyetheramine to obtain a polysiloxane with epoxy as the end, and then further polycondensation with tetraethylene pentamine to obtain a new type of polyester-cotton soft silicone oil. The small and medium molecular weight end epoxy polyether siloxane is polycondensed with the above two amines in batches, and the silicone oil with small and medium molecular chain segments can give polyester fabrics soft, slippery and elastic properties. Its conventional difunctional polyetheramine can be well combined with polyester fibers, and at the same time give polyester fibers a soft, delicate, slippery and elastic style. After the tetraethylene pentamine reacts with silicone oil and is acidified, its strong cations can be well combined with the anions on the cotton fibers, and the silicone oil can be easily adsorbed into the cotton fibers, thereby giving the cotton fibers a soft and elastic feel. Summary of the invention

[0004] The purpose of the present invention is to provide a polyester-cotton softening silicone oil and a preparation method thereof. The prepared polyester-cotton softening silicone oil can be used for finishing of fabrics to effectively improve the softness and fineness of the fabrics.

[0005] To achieve the above-mentioned purpose, the present invention provides a polyester-cotton softening silicone oil, which is prepared from the following raw materials in parts by weight: 0.5-5 parts by weight of polyether amine, 0.1-1 parts by weight of tetraethylene pentamine, 20-43 parts by weight of terminal epoxy polyether silicone oil, 10-30 parts by weight of organic solvent, 1-3 parts by weight of nonionic surfactant, 0.1-0.3 parts by weight of organic acid, and 30-50 parts by weight of deionized water.

[0006] Furthermore, the polyetheramine is one or more polyetheramines with a molecular weight of 400-2000, and the structural formula is:

[0007]

[0008] Wherein, R1=-CH3, -C2H5, -C4H9 or -H, a=1~10, b=1~40.

[0009] Further, the tetraethylenepentamine structural formula is as follows:

[0010]

[0011] Furthermore, the terminal epoxy polyether silicone oil is one or more of the terminal epoxy polyether silicone oils with a molecular weight of 5000-15000, and the structural formula is:

[0012]

[0013] Among them, n=50-200, C=0-30, d=0-40.

[0014] Furthermore, the organic solvent is one or more of diethylene glycol butyl ether, propylene glycol, N,N-dimethylformamide, ethylene glycol monobutyl ether, ethyl acetate or isopropanol.

[0015] Furthermore, the organic acid is one or two of formic acid, acetic acid or citric acid.

[0016] Furthermore, the structural formula of the polyester-cotton softening silicone oil is as follows:

[0017]

[0018] Furthermore, the reaction process of the polyester-cotton softening silicone oil is as follows:

[0019]

[0020] The present invention also provides a method for preparing the above polyester-cotton softening silicone oil, comprising the following steps:

[0021] Step 1, adding polyetheramine, epoxy-terminated polyether silicone oil and organic solvent into a reaction vessel, and reacting at 80-120° C. for 6-12 hours;

[0022] Step 2, then adding tetraethylenepentamine into the reaction vessel and reacting at 80-120° C. for 4-8 hours;

[0023] Step 3, adding a nonionic surfactant and stirring for 15-25 minutes;

[0024] Step 4, slowly add one fifth of deionized water, stir for 15 minutes, then mix the organic acid and one fifth of deionized water evenly, slowly add, and stir for 20 minutes;

[0025] Step 5, slowly add the remaining deionized water in batches, stir evenly, and filter the material to obtain soft silicone oil for polyester.

[0026] The advantages and positive effects of the polyester-cotton softening silicone oil and the preparation method thereof described in the present invention are:

[0027] 1. The polyester-cotton softening silicone oil of the present invention adopts a small molecular weight terminal epoxy polyether siloxane fraction and two kinds of amines for polycondensation, and the silicone oil with small and medium molecular chains can give the polyester-cotton a soft and delicate feel.

[0028] 2. The conventional difunctional polyetheramine in the polyester-cotton softening silicone oil of the present invention can be well combined with polyester fibers, and at the same time give the polyester fibers a soft, delicate and elastic style.

[0029] 3. In the present invention, tetraethylenepentamine reacts with silicone oil. After acidification, its strong cations can combine well with the anions on the cotton fibers, and the silicone oil can be easily adsorbed into the cotton fibers, thereby giving the cotton fibers a soft, elastic and delicate feel.

[0030] The technical solution of the present invention is further described in detail below through embodiments. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further illustrated by the following examples.

[0032] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0033] Unless otherwise defined, the instruments, equipment and reagents used in the present invention are conventionally commercially available.

[0034] A new type of polyester-cotton soft silicone oil is prepared from the following raw materials in parts by weight:

[0035]

[0036] The polyetheramine is one or more polyetheramines with a molecular weight of 400-2000.

[0037] The epoxy-terminated polyether silicone oil is one or more of the epoxy-terminated polyether silicone oils with a molecular weight of 5000-15000.

[0038] The organic solvent is one or more of diethylene glycol butyl ether, propylene glycol, N,N-dimethylformamide, ethylene glycol monobutyl ether, ethyl acetate, and isopropanol.

[0039] The organic acid is one or two of formic acid, acetic acid and citric acid.

[0040] Example 1

[0041] The following raw materials are provided in measured weights: 4.6 parts by mass of polyetheramine with a molecular weight of 600, 0.8 parts by mass of tetraethylene pentamine, 30 parts by mass of terminal epoxy polyether silicone oil with a molecular weight of 10,000, 22 parts by mass of ethylene glycol butyl ether, 3 parts by mass of isomerized decanol polyoxyethylene ether XL50, 0.5 parts by mass of glacial acetic acid, and 39.1 parts by mass of deionized water.

[0042] The specific preparation process of soft silicone oil is as follows:

[0043] 1) Add polyetheramine ED600, epoxy-terminated polyether silicone oil and ethylene glycol monobutyl ether into a reaction vessel, react at 100° C. for 9 hours, and proceed to the next step;

[0044] 2) Add tetraethylenepentamine to the reaction vessel, react at 100°C for 6 hours, cool to 50°C, and proceed to the next step;

[0045] 3) Add isomeric decanol polyoxyethylene ether XL50 and stir for 20 minutes;

[0046] 4) slowly adding 10 parts by mass of deionized water, stirring for 10 minutes, then mixing the organic acid and 10 parts by mass of deionized water evenly, and slowly adding;

[0047] 5) The remaining deionized water is slowly added in batches, and the material is filtered to obtain a new type of polyester-cotton soft silicone oil.

[0048] Example 2

[0049] The following raw materials are provided in measured weights: 2.5 parts by mass of polyetheramine with a molecular weight of 600, 1.0 parts by mass of tetraethylene pentamine, 30 parts by mass of terminal epoxy polyether silicone oil with a molecular weight of 8000, 22 parts by mass of ethylene glycol butyl ether, 0.5 parts by mass of glacial acetic acid, 3 parts by mass of isomeric decanol polyoxyethylene ether XL50, and 37.5 parts by mass of deionized water.

[0050] The specific preparation process of soft silicone oil is as follows:

[0051] 1) Add polyetheramine ED600, epoxy-terminated polyether silicone oil and ethylene glycol monobutyl ether into a reaction vessel, react at 100° C. for 10 hours, and proceed to the next step;

[0052] 2) Add tetraethylenepentamine to the reaction vessel, react at 100°C for 6 hours, cool to 50°C, and proceed to the next step;

[0053] 3) Add isomeric decanol polyoxyethylene ether XL50 and stir for 20 minutes;

[0054] 4) slowly adding 10 parts by mass of deionized water, stirring for 10 minutes, then mixing the organic acid and 10 parts by mass of deionized water evenly, and slowly adding;

[0055] 5) The remaining deionized water is slowly added in batches, and the material is filtered to obtain a new type of polyester-cotton soft silicone oil.

[0056] Example 3

[0057] The following raw materials are provided in measured weights: 5.0 parts by mass of polyetheramine with a molecular weight of 900, 1.0 parts by mass of tetraethylene pentamine, 30.0 parts by mass of terminal epoxy polyether silicone oil with a molecular weight of 12000, 22 parts by mass of ethylene glycol butyl ether, 3 parts by mass of isomerized decanol polyoxyethylene ether XL50, 0.5 parts by mass of glacial acetic acid, and 34.5 parts by mass of deionized water.

[0058] The specific preparation process of soft silicone oil is as follows:

[0059] 1) Add polyetheramine ED600, epoxy-terminated polyether silicone oil and ethylene glycol monobutyl ether into a reaction vessel, react at 100° C. for 10 hours, and proceed to the next step;

[0060] 2) Add tetraethylenepentamine to the reaction vessel, react at 100°C for 6 hours, cool to 50°C, and proceed to the next step;

[0061] 3) Add isomeric decanol polyoxyethylene ether XL50 and stir for 20 minutes;

[0062] 4) slowly adding 10 parts by mass of deionized water, stirring for 10 minutes, then mixing the organic acid and 10 parts by mass of deionized water evenly, and slowly adding;

[0063] 5) The remaining deionized water is slowly added in batches, and the material is filtered to obtain a new type of polyester-cotton soft silicone oil.

[0064] Hand feel comparison experiment:

[0065] Taking commercially available common silicone oil as a comparative example, a hand feel comparison experiment was conducted on the soft silicone oils prepared in Examples 1 to 3. The following is an explanation and verification through the specific experimental process and the obtained data.

[0066] Polyester cotton cloth was used as the experimental object. The solid content of the emulsion products was diluted to 15%, and the dosage was 50g / l. The specific treatment was: one dip and one pad → 160℃ setting for 120 seconds → moisture regain for 4 hours. The hand feel was compared. The results are shown in Table 1.

[0067] Table 1 Hand feel comparison test results

[0068]

[0069] Note: 5 is the best and 1 is the worst.

[0070] It can be seen from Table 1 that, compared with the common silicone oil purchased on the market, after the polyester cotton is treated with the soft silicone oil prepared in the embodiment of the present invention, the softness, fluffiness and fineness of the polyester cotton are improved, indicating that the soft silicone oil prepared in the present invention can significantly improve the softness and fineness of the fabric.

[0071] Therefore, the present invention adopts the above-mentioned polyester-cotton softening silicone oil and its preparation method, and the prepared polyester-cotton softening silicone oil can be used for fabric finishing and processing, effectively improving the softness and fineness of the fabric.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A polyester-cotton soft silicone oil, characterized in that: The invention is prepared from the following raw materials in parts by weight: 0.5-5 parts by weight of polyetheramine, 0.1-1 parts by weight of tetraethylenepentamine, 20-43 parts by weight of terminal epoxy polyether silicone oil, 10-30 parts by weight of organic solvent, 1-3 parts by weight of nonionic surfactant, 0.1-0.3 parts by weight of organic acid and 30-50 parts by weight of deionized water.

2. The polyester-cotton softening silicone oil according to claim 1, characterized in that: The polyetheramine is one or more polyetheramines with a molecular weight of 400-2000, and the structural formula is: Wherein, R1=-CH3, -C2H5, -C4H9 or -H, a=1~10, b=1~40.

3. The polyester-cotton soft silicone oil according to claim 1, characterized in that: The tetraethylenepentamine structural formula is as follows:

4. The polyester-cotton softening silicone oil according to claim 1, characterized in that: The epoxy-terminated polyether silicone oil is one or more of the epoxy-terminated polyether silicone oils with a molecular weight of 5000-15000, and the structural formula is: Among them, n=50-200, C=0-30, d=0-40.

5. The polyester-cotton softening silicone oil according to claim 1, characterized in that: The organic solvent is one or more of diethylene glycol butyl ether, propylene glycol, N,N-dimethylformamide, ethylene glycol monobutyl ether, ethyl acetate or isopropanol.

6. The polyester-cotton softening silicone oil according to claim 1, characterized in that: The organic acid is one or two of formic acid, acetic acid or citric acid.

7. The polyester-cotton softening silicone oil according to claim 1, characterized in that: The structural formula of the polyester-cotton soft silicone oil is as follows:

8. The polyester-cotton softening silicone oil according to claim 1, characterized in that: The reaction process of the polyester-cotton soft silicone oil is as follows:

9. The method for preparing a polyester-cotton softening silicone oil according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1, adding polyetheramine, epoxy-terminated polyether silicone oil and organic solvent into a reaction vessel, and reacting at 80-120° C. for 6-12 hours; Step 2, then adding tetraethylenepentamine into the reaction vessel and reacting at 80-120° C. for 4-8 hours; Step 3, adding a nonionic surfactant and stirring for 15-25 minutes; Step 4, slowly add one fifth of deionized water, stir for 15 minutes, then mix the organic acid and one fifth of deionized water evenly, slowly add, and stir for 20 minutes; Step 5, slowly add the remaining deionized water in batches, stir evenly, and filter the material to obtain soft silicone oil for polyester.

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