CN112920620A

CN112920620A - Composition for gray disperse dye and gray disperse dye

Info

Publication number: CN112920620A
Application number: CN201911244413.3A
Authority: CN
Inventors: 丁鑫; 谢麟
Original assignee: Jiaxing Chuangse Chemical Raw Materials Co ltd
Current assignee: Jiaxing Chuangse Chemical Raw Materials Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2021-06-08

Abstract

The application discloses a composition for gray disperse dyes and a gray disperse dye, wherein the composition comprises a component A, a component B and a component C; the component A is C.I. disperse yellow 54, and the molecular structural formula is as follows:

the component B is C.I. disperse blue 56, and the molecular structural formula is as follows:

the component C is C.I. disperse red 60, and the molecular structural formula is as follows:

according to the application, the C.I. disperse yellow 54, the C.I. disperse blue 56 and the C.I. disperse red 60 are mixed according to a certain proportion, and the dispersing agent and the water are added to obtain the stable gray disperse dye.

Description

Composition for gray disperse dye and gray disperse dye

Technical Field

The application relates to the field of dyes, in particular to a composition for a gray disperse dye and the gray disperse dye.

Background

The gray dyes mainly used in the market before generally consist of c.i. disperse blue 56, c.i. disperse red 60 and c.i. disperse yellow 23, but because c.i. disperse yellow 23 is listed as a forbidden azo dye, the existing dye house mostly uses c.i. disperse blue 56, c.i. disperse red 60, disperse golden E-R (golden E-RGFL) and other dyes for compound dyeing. However, since gray is a sensitive color, when complex dyeing is carried out by using a plurality of dyes, the reproducibility is poor, batch difference is easy to generate, and the repair rate is high.

Disclosure of Invention

The present application aims to overcome the above problems and provide a composition for gray disperse dyes with good compatibility and reproducibility.

The invention also provides a gray disperse dye.

According to one aspect of the present application, there is provided a composition for a gray disperse dye comprising a component a, a component B and a component C;

the component A is C.I. disperse yellow 54, and the molecular structural formula is as follows:

the invention relates to a gray disperse dye composition, which comprises the following components in parts by weight:

component A is 200 portions and 1000 portions; and (B) component: 800-; and (3) component C: 500-4000 parts. Component A is 200 portions and 1000 portions; and (B) component: 800-; and (3) component C: 500-4000 parts.

Further, the composition also comprises a component D, wherein the component D is dispersed orange 25, and the molecular structural formula is as follows:

the component D: 0 to 100 weight portions.

Further, the paint also comprises a dispersant and water.

The dispersant is dispersant MF, lignin 85A or dispersant NNO.

The dispersing agent is as follows: 3000-7700 weight portions.

The invention also provides a method for preparing a gray disperse dye by using the composition for the gray disperse dye, which comprises the following steps:

adding the component A, the component B, the component C and the component D according to the proportion, adding a pre-added dispersant, adding water for pulping, controlling the solid content of the pulp to be 42-45%, then transferring the pulp to a sand mill for sanding until the grain diameter is qualified and the normal temperature dispersibility test is qualified; and (3) beating the materials into a calibration kettle, adding the residual dispersant, adjusting the solid content of the slurry to 42% -45%, adjusting the color light to be in a qualified range by using the corresponding component A, the component B, the component C and the component D, adjusting the intensity to be 107.5-109% after referring to a standard product, filtering by using a filter bag of 5 microns until the spot index is qualified, and spraying by using a drying tower to obtain a gray disperse dye finished product.

The pre-added amount of the dispersant is 400-600 parts by weight.

According to another aspect of the present application, there is provided a grey disperse dye prepared according to the above method.

In addition, the lifting force of the gray disperse dye mixture is improved by adding the component D, namely disperse orange 25.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic dye-uptake graph of fuels yellow 54, yellow 23, blue 56, and red 60 according to one embodiment of the present application.

Detailed Description

The above, as well as additional purposes, advantages, and features of the present application, will become apparent to those of ordinary skill in the art upon examination of the following detailed description of specific embodiments of the application.

Example 1

Weighing the following raw materials (kg):

260 kg of component A; and (B) component: 1100 kg; and (3) component C: 680 kilograms; and (3) component D: 60 kilograms; dispersant MF: 7500 kg;

the component D is dispersed orange 25, and the molecular structural formula is as follows:

the preparation method of the gray disperse dye comprises the following steps:

adding a corresponding amount of the component A, the component B, the component C, the component D and 400 kg of the dispersant MF according to the proportion of the embodiment 1, adding water for pulping, controlling the solid content of the pulp to be 43%, then transferring the pulp into a sand mill for sand milling until the grain diameter is qualified and the normal-temperature dispersibility test is qualified; (note: the number of particles smaller than 1.096 μm is not less than 75%, and AATCC test rating is not less than 1-A-3) beating the materials into a calibration kettle, adding the residual dispersant MF, adjusting the solid content of the slurry to 44%, adjusting the color light to be in a qualified range by using the corresponding component A, component B, component C and component D, referring to the standard product, adjusting the strength to be 107.5-109%, filtering by using a 5-micron filter bag until the spot index is qualified, and spraying by using a drying tower to obtain a gray disperse dye finished product.

Example 2

Weighing the following raw materials in parts by weight:

285 kg of component A; and (B) component: 1100 kg; and (3) component C: 750 kilograms; dispersant MF: 7300 kg.

The preparation method of the gray disperse dye comprises the following steps:

adding a corresponding amount of the component A, the component B, the component C and 400 kg of the dispersant MF according to the proportion of the embodiment 1, adding water for pulping, controlling the solid content of the pulp to be 43%, then transferring the pulp into a sand mill for sanding until the grain diameter is qualified and the normal-temperature dispersibility test is qualified; (note: the number of particles smaller than 1.096 μm is not less than 75%, and AATCC test rating is not less than 1-A-3) beating the materials into a calibration kettle, adding the residual dispersant MF, adjusting the solid content of the slurry to 44%, adjusting the color light of the corresponding component A, component B and component C to be within a qualified range, referring to a standard product, adjusting the strength to be 107.5-109%, filtering by using a 5-micron filter bag until the spot index is qualified, and spraying by using a drying tower to obtain a gray disperse dye finished product.

Example 3

Weighing the following raw materials in parts by weight:

520 kg of component A; and (B) component: 2200 kg; and (3) component C: 1360 kg; and (3) component D: 100 kg; dispersant MF: 5000 kg.

The preparation method of the gray disperse dye comprises the following steps:

firstly, adding a corresponding amount of the component A, the component B, the component C, the component D and 500 kg of the dispersant MF according to the proportion of the embodiment 1, adding water for pulping, controlling the solid content of the pulp to be 42%, then transferring the pulp into a sand mill for sand milling until the grain diameter is qualified and the normal-temperature dispersibility test is qualified; (note: the number of particles smaller than 1.096 μm is not less than 75%, and AATCC test rating is not less than 1-A-3) beating the materials into a calibration kettle, adding the residual dispersant MF, adjusting the solid content of the slurry to 45%, adjusting the color light to be in a qualified range by using the corresponding component A, the component B, the component C and the component D, referring to the standard product, adjusting the strength to be 107.5-109%, filtering by using a filter bag of 5 micrometers until the spot index is qualified, and spraying by using a drying tower to obtain a gray disperse dye finished product.

Example 4

Weighing the following raw materials in parts by weight:

520 kg of component A; and (B) component: 1150 kg; and (3) component C: 680 kilograms; and (3) component D: 70 kg; dispersant MF: 7000 kg;

the preparation method of the gray disperse dye comprises the following steps:

adding a corresponding amount of the component A, the component B, the component C, the component D and 600 kg of the dispersant MF according to the proportion of the embodiment 1, adding water for pulping, controlling the solid content of the pulp to be 45%, then transferring the pulp into a sand mill for sand milling until the grain diameter is qualified and the normal-temperature dispersibility test is qualified; (note: the number of particles smaller than 1.096 μm is not less than 75%, and AATCC test rating is not less than 1-A-3) beating the materials into a calibration kettle, adding the residual dispersant MF, adjusting the solid content of the slurry to 42%, adjusting the color light to be in a qualified range by using the corresponding component A, the component B, the component C and the component D, referring to the standard product, adjusting the strength to be 107.5-109%, filtering by using a filter bag of 5 micrometers until the spot index is qualified, and spraying by using a drying tower to obtain a gray disperse dye finished product.

Example 5

Weighing the following raw materials in parts by weight: 260 kg of component A; and (B) component: 2200 kg; and (3) component C: 680 kilograms; and (3) component D: 80 kg; dispersant MF: 6500 kg;

the grey disperse dye was prepared as in example 1.

Example 6

Weighing the following raw materials in parts by weight: and (2) component A:200 kg; and (B) component: 800 kg; and (3) component C: 500 kg; and (3) component D: 50 kg; lignin 85A: 3000 kg;

the grey disperse dye was prepared as in example 1.

Example 7

Weighing the following raw materials in parts by weight: and (2) component A: 1000 kg; and (B) component: 3000 kg; and (3) component C: 4000 kg; and (3) component D: 40 kg; dispersing agent NNO: 7700 kilogram;

the grey disperse dye was prepared as in example 1.

Note: since component a, component B, component C and component D are present in the form of filter cakes and commercial products of various strengths, the specific examples are adjusted according to the forms and actual strengths thereof, but the properties of the finally obtained gray disperse dye are substantially consistent.

Example 1 in addition to example 2, a certain amount of substance D was added.

TABLE 1

Depth of dyeing	1.0％O.W.F	2.0％O.W.F	4.0％O.W.F
				Example 1	Ref.	185.40％	367.49％
Example 2	Ref.	182.04％	347.20％

Note: o.w.f denotes the depth of staining and ref. denotes the reference standard therefor.

As can be seen from Table 1, with the same dyeing depth of 2.0% and 4.0%, example 1 with the addition of substance D is slightly higher than example 2, i.e. the addition of substance D results in an improvement in the lifting force performance.

Compatibility and dyeing process:

as shown in FIG. 1, the dye uptake curves of the respective dyes are shown. It can be seen that the staining tendency (with temperature and incubation time) of yellow 54 is substantially the same as that of conventional yellow 23; the dye has good compatibility with blue 56 and red 60, and each dye is rarely colored at 100 ℃ as shown in the upper figure, so that the temperature rise rate of 2 ℃/min can be adopted at room temperature to 100 ℃, and the temperature rise rate can be properly slowed down to 1 ℃/min at 100-130 ℃ which is a dye concentrated dyeing stage; and the heat preservation is carried out for 10min, 20min and 40min, the color yield is basically not different or is even slightly reduced, so the heat preservation time is not suitable to be overlong, the dyeing process is shortened, and the color yield is higher.

pH dependence:

TABLE 2

Note: in table 2, ref.ds indicates the intensity of a dyed cloth sample under the subsequent dyeing conditions, based on a dyed cloth sample having a pH of 4.0, DE indicates the total color difference, DC indicates the chroma (i.e., lightness), and DH indicates the hue.

As can be seen from Table 2, the change of pH has little influence on dyeing, the product can dye under the alkalescent condition besides the conventional weakly acidic condition, the residual alkali is required to be removed after the pretreatment of general fibers, and the dye bath is adjusted to be acidic, and the product can also dye under the alkalescent condition, so that the water consumption for cleaning is reduced, and the dyeing process flow is reduced.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A composition for a grey disperse dye comprises a component A, a component B and a component C;

2. a composition of disperse grey dyes according to claim 1, characterized by comprising the following components in parts by weight:

component A is 200 portions and 1000 portions; and (B) component: 800-; and (3) component C: 500-4000 parts.

3. A composition as claimed in claim 1 or 2, further comprising a component D, wherein component D is disperse orange 25, and the molecular formula is as follows:

4. a composition for grey disperse dyes according to claim 3, characterized in that the ratio of component D: 0 to 100 weight portions.

5. A composition as claimed in claim 4, further comprising a dispersant and water.

6. A composition for grey disperse dyes according to claim 5, characterized in that the dispersant is dispersant MF, lignin 85A or dispersant NNO.

7. A composition for grey disperse dyes according to claim 6, wherein the dispersant: 3000-7700 weight portions.

8. A method for preparing a grey disperse dye using the composition for a grey disperse dye according to any of claims 3 to 7, comprising the steps of:

9. The method as set forth in claim 8, wherein the pre-amount of the dispersant is 400-600 parts by weight.

10. A grey disperse dye, characterised in that it is prepared according to the process of claim 8 or 9.