CN110257988A - A kind of gradual change illusion-colour yarn and its Yarn spinning method - Google Patents

Abstract

The invention discloses a gradient illusion yarn and a spinning method thereof. The method comprises the following steps: determining three gradient primary colors X, Y, and Z, and designing m gradient units; determining the color mixing ratio of the initial color segment and the ending color segment X _mi , Y _mi , Z _mi , X _mj , Y _mj , Z _mj ; Calculate the color mixing ratio of the middle color segment: Calculate the blending of the initial color segment, the end color segment and the middle color segment of the mth gradient unit through the color mixing ratio ratio; determine the roving quantity of the colored roving corresponding to the gradient base color, and calculate the draft ratio of each color segment; respectively feed the colored roving in the three-channel digital spinning machine, input the spinning parameters on the control panel, and adjust the The draft ratio is spun into a gradient phantom yarn.

Description

A kind of gradient phantom yarn and its spinning method

technical field

The invention relates to the technical field of spinning, in particular to a gradient illusion yarn and a spinning method thereof.

Background technique

Segment-colored yarn is a kind of yarn with different colors distributed in sections along the length of the yarn. Diversified demands on textile colors. The process methods for producing segment colored yarn include dyeing and coloring method and colored fiber spinning method. The dyeing and coloring method is to partially spray dye the skein or cheese yarn and steam it to form a section of different color distribution on the yarn. The colored fiber spinning method is to pass multiple rovings of different colors through a special drafting and twisting device, so that fibers of a certain color are discontinuously distributed on the yarn to form a segmented colored yarn.

The advantage of the dyeing and coloring method is that the colors can be distributed randomly and flexibly within a long yarn segment length, but the disadvantages are that the machine body requires a long body, occupies a large area, and the production efficiency is low, and it cannot meet the current people's environmental protection requirements for textiles. Require. The colored fiber spinning method cannot meet the precise requirements in color control, especially when three colors are mixed to form a gradient effect. In the prior art, the gradual change is often achieved by adjusting the equal difference of the color mixing ratio of a certain color. This kind of gradient is often blunt, the transition section is clear, and the gradient effect is uncontrollable, so it is difficult to achieve a natural color transition effect.

Contents of the invention

The invention provides a gradient illusion yarn and a spinning method thereof to solve the problem that the color gradient of the section colored yarn is hard, the transition section is distinct, and it is difficult to achieve a natural effect of color transition.

In the first aspect, the present invention provides a spinning method for gradient illusion yarn, which uses a three-channel digital spinning machine and uses three kinds of color mixing, including the following steps:

(1) Determine three gradient primary colors X, Y, Z, and design m gradient units.

(2) Determine the color mixing ratios X _mi , Y _mi , Z _mi of the gradient base colors in the initial color segment of the mth gradient unit, and the color mixing ratios X _mj , Y _mj , Z _mj of the gradient base colors in the ending color segment.

(3) Except for the initial color segment and the ending color segment, determine the number n of intermediate color segments in the mth gradient unit, and calculate the color mixing ratio of the gradient base color in each intermediate color segment according to the following formula:

X _m1 =X _mi +(X _mj -X _mi )·1/n, Y _m1 =Y _mi +(Y _mj -Y _mi )·1/n, Z _m1 =Z _mi +(Z _mj -Z _mi )· 1/n;

X _m2 =X _mi +(X _mj -X _mi )·2/n, Y _m2 =Y _mi +(Y _mj -Y _mi )·2/n, Z _m2 =Z _mi +(Z _mj -Z _mi )· 2/n;

X _m3 =X _mi +(X _mj -X _mi )·3/n, Y _m3 =Y _mi +(Y _mj -Y _mi )·3/n, Z _m3 =Z _mi +(Z _mj -Z _mi )· 3/n;

...

X _mn ＝X _mi +(X _mj -X _mi ) n/n, Y _mn ＝Y _mi +(Y _mj -Y _mi ) n/n, Z _mn ＝Z _mi +(Z _mj -Z _mi )· n/n.

(4) According to the following formula, calculate the blending ratio of the initial color segment, the ending color segment and the middle color segment of the m-th gradient unit through the color mixing ratio:

K _mi (X)＝X _mi /(X _mi +Y _mi +Z _mi ), K _mi (Y)＝Y _mi /(X _mi +Y _mi +Z _mi ), K _mi (Z)＝Z _mi /( X _mi +Y _mi +Z _mi );

K _mj (X)＝X _mj /(X _mj +Y _mj +Z _mj ),K _mj (Y)＝Y _mj /(X _mj +Y _mj +Z _mj ),K _mj (Z)＝Z _mj /( X _mj +Y _mj +Z _mj );

K _mn (X)＝X _mn /(X _mn +Y _mn +Z _mn ),K _mn (Y)＝Y _mn /(X _mn +Y _mn +Z _mn ),K _mn (Z)＝Z _mn /( X _mn +Y _mn +Z _mn ).

(5) Determine the roving quantitative ρ(X), ρ(Y), ρ(Z) of the colored rovings corresponding to the gradient base colors X, Y, Z, and calculate the draft ratio e _mi (X), e _mi of the initial color segment (Y), e _mi (Z), the draft ratio of the end color segment e _mj (X), e _mj (Y), e _mj (Z), the draft ratio of the middle color segment e _mn (X), e _mn (Y), e _mn (Z).

(6) Feed the colored rovings corresponding to the gradient primary colors X, Y, and Z from the three rear roller channels of the three-channel digital spinning machine, and input the roving weight, spindle speed, twist coefficient, and linear density on the control panel, According to the order of the initial color segment, the ending color segment and the middle color segment, the gradient illusion yarn is spun by adjusting the draft ratio of each channel.

In the second aspect, the spinning method of another gradient illusion yarn provided by the present invention uses a three-channel digital spinning machine and adopts two kinds of color mixing, including the following steps:

(1) Determine two gradient primary colors X and Y, and design m gradient units.

(2) Determine the color mixing ratios X _mi , Y _mi of the gradient base colors in the initial color segment of the mth gradient unit, and the color mixing ratios X _mj , Y _mj of the gradient base colors in the ending color segment.

(3) Except for the initial color segment and the ending color segment, determine the number n of intermediate color segments in the mth gradient unit, and calculate the color mixing ratio of the gradient base color in each intermediate color segment according to the following formula:

X _m1 =X _mi +(X _mj -X _mi )·1/n, Y _m1 =Y _mi +(Y _mj -Y _mi )·1/n;

X _m2 =X _mi +(X _mj -X _mi )·2/n, Y _m2 =Y _mi +(Y _mj -Y _mi )·2/n;

X _m3 =X _mi +(X _mj -X _mi ) · 3/n, Y _m3 = Y _mi +(Y _mj -Y _mi ) · 3/n;

...

X _mn =X _mi +(X _mj -X _mi )·n/n, Y _mn =Y _mi +(Y _mj -Y _mi )·n/n.

(4) According to the following formula, calculate the blending ratio of the initial color segment, the ending color segment and the middle color segment of the m-th gradient unit through the color mixing ratio:

K _mi (X)＝X _mi /(X _mi +Y _mi +Z _mi ),K _mi (Y)＝Y _mi /(X _mi +Y _mi +Z _mi );

K _mj (X)＝X _mj /(X _mj +Y _mj +Z _mj ),K _mj (Y)＝Y _mj /(X _mj +Y _mj +Z _mj );

K _mn (X) = X _mn / (X _mn + Y _mn + Z _mn ), K _mn (Y) = Y _mn / (X _mn + Y _mn + Z _mn ).

(5) Determine the roving quantitative ρ(X) and ρ(Y) of the colored rovings corresponding to the gradient base colors X, Y, and Z, calculate the draft ratio e _mi (X) and e _mi (Y) of the initial color segment, and end The draft ratios e _mj (X) and e _mj (Y) of the color segment, and the draft ratios e _mn (X) and e _mn (Y) of the middle color segment.

(6) Feed the colored rovings corresponding to the gradient primary colors X and Y from any two rear roller channels of the three-channel digital spinning machine, and input the spinning parameters on the control panel, according to the initial color segment, the end color segment and The sequence of the intermediate color segments is spun into a gradient phantom yarn by adjusting the draft ratio of each channel.

Optionally, it also includes designing the length of each gradient unit and each color segment according to the length of the gradient illusion yarn to be spun.

Optionally, m≥1, n≥0.

Optionally, the color mixing ratios of the gradient base colors in the initial color segment and the ending color segment of two adjacent gradient units are correspondingly the same.

Optionally, the spinning parameters include roving basis weight, spindle speed, twist coefficient and linear density.

Optionally, the colored roving is made of pure cotton, polyester cotton or/and cellulose fibers.

Optionally, the colored rovings corresponding to the gradient base colors X, Y, and Z have the same linear density.

In the third aspect, the present invention also provides a gradient illusion yarn, which is spun by the spinning method of the gradient illusion yarn provided in the first two aspects.

The present invention has the following beneficial effects:

In the spinning method of the gradient illusion yarn of the present invention, in each gradient unit, determine the color mixing ratio X _mi , Y _mi , Z _mi of the gradient base color in the initial color segment, and the color mixing ratio of the gradient base color in the ending color segment X _mj , Y _mj , Z _mj , determine the number n of intermediate color segments in the mth gradient unit, and calculate the color mixing ratio of the gradient base color in each intermediate color segment according to the following formula: X _mn =X _mi +(X _mj - X _mi )·n/n, Y _mn =Y _mi +(Y _mj −Y _mi )·n/n, Z _mn =Z _mi +(Z _mj −Z _mi )·n/n. Then calculate the blending ratio, and then calculate the draft ratio, and adjust the draft ratio of each channel according to the order of the initial color segment, the ending color segment and the middle color segment, and then spin it into a gradient illusion yarn. Compared with the simple arithmetic increment or decrement method, this method has natural color transition and obvious gradient style. In addition, the gradient effect is better controlled and it is easier to achieve pre-designed effects.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

Detailed ways

The invention provides a gradient illusion yarn and a spinning method thereof to solve the problem that the color gradient of the section colored yarn is hard, the transition section is distinct, and it is difficult to achieve a natural effect of color transition. The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

The segmented colored yarn that is ubiquitous in the market at present refers to the use of composite spinning technology to produce traditional colored spun yarn. Traditional colored spun yarn is fed with a roving, drawn continuously in two zones on the spinning frame, and then twisted and wound. Formed spinning method into yarn. The segment colored yarn is to feed multiple rovings into the main drafting zone and the post-drafting zone (effectively mixed in the main drafting zone) in the manner of continuous variable speed, discontinuous variable speed or pause respectively, and then Yarn is formed by spinning through twisting and winding. This embodiment 1 provides a spinning method of gradient illusion yarn, using a three-channel digital spinning machine, adopting three kinds of color mixing, and spinning based on the above-mentioned principle. Specifically, the following steps are included:

Step S110, determine three gradient primary colors X, Y, Z, and design m gradient units. The choice of three gradient base colors and the design of the gradient unit can be changed arbitrarily according to the designer's design needs, the specific requirements of customers, the fashion trend of market feedback, and the aesthetic requirements of different application scenarios. For example, choose the three primary colors of red, green, and blue as the three gradient primary colors X, Y, and Z respectively, and design three gradient units. The first gradient unit is more and more red after color mixing, and the second gradient unit follows the first The first gradient unit is getting greener, the third gradient unit is followed by the second gradient unit is getting bluer.

Step S120, determining the color mixing ratios X _mi , Y _mi , Z _mi of the gradient base colors in the initial color segment of the mth gradient unit, and the color mixing ratios X _mj , Y _mj , Z _mj of the gradient base colors in the ending color segment. Next, the example in step S110 is explained: in order to make the color of the gradient unit controllable, the gradient is natural. First design the color of the initial color segment and the end color segment of each gradient unit, and then determine the color mixing ratio of the gradient base color in the initial color segment and the end color segment of the three gradient units through color mixing experiments and computer simulation (such as photoshop software) The blending ratio of the gradient's base color. Therefore, the color mixing ratios X _1i , Y _1i , Z _1i of the gradient base colors in the initial color segment of the first gradient unit, and the color mixing ratios X _1j , Y _1j , Z _1j of the gradient base colors in the ending color segment; the second gradient The color mixing ratio X _2i , Y _2i , Z _2i of the gradient base color in the initial color segment of the unit, and the color mixing ratio X _2j , Y _2j , Z _2j of the gradient base color in the ending color segment; in the initial color segment of the third gradient unit The color mixing ratios X _3i , Y _3i , Z _3i of the gradient base color, and the color mixing ratios X _3j , Y _3j , Z _3j of the gradient base color in the ending color segment. In order to make the transition between each unit natural, the color mixing ratios of the initial color segment and the end color segment of two adjacent gradient units correspond to the same, that is, the end color segment of the first gradient unit is the same as the initial color segment of the second gradient unit, X _1j =X _2i , Y _1j =Y _2i , Z _1j =Z _2i , and so on, the end color segment of the second gradient unit is the same as the initial color segment of the third gradient unit, X _2j =X _3i , Y _2j =Y _3i , Z _2j =Z _3i .

Step S130, except the initial color segment and the ending color segment, determine the number n of intermediate color segments in the mth gradient unit, and calculate the color mixing ratio of the gradient base color in each intermediate color segment according to the following formula:

X _m1 =X _mi +(X _mj -X _mi )·1/n, Y _m1 =Y _mi +(Y _mj -Y _mi )·1/n, Z _m1 =Z _mi +(Z _mj -Z _mi )· 1/n;

X _m2 =X _mi +(X _mj -X _mi )·2/n, Y _m2 =Y _mi +(Y _mj -Y _mi )·2/n, Z _m2 =Z _mi +(Z _mj -Z _mi )· 2/n;

X _m3 =X _mi +(X _mj -X _mi )·3/n, Y _m3 =Y _mi +(Y _mj -Y _mi )·3/n, Z _m3 =Z _mi +(Z _mj -Z _mi )· 3/n;

...

X _mn ＝X _mi +(X _mj -X _mi ) n/n, Y _mn ＝Y _mi +(Y _mj -Y _mi ) n/n, Z _mn ＝Z _mi +(Z _mj -Z _mi )· n/n.

If the colors of the initial color segment and the ending color segment are very close, then the intermediate color segment can be omitted, and the initial color segment is directly transitioned to the ending color segment. That is to say n can be equal to 0.

Then the example in step S120 is elaborated: the color change of the first gradient unit is more and more red, then the least red color segment is the initial color segment, and the reddest color segment is the ending color segment, by the least red color segment The color segment transitions to the reddest color segment, and multiple intermediate color segments can be set in the middle. The line is from the least red segment → the second least red segment → the middle red segment → the second red segment → the most red segment. The color mixing ratio of each color segment of the first gradient unit is as follows:

The least red segment (initial color segment): X _1i , Y _1i , Z _1i ;

The second non-red segment (the first intermediate segment):

X ₁₁ =X _1i +(X _1j -X _1i )·1/3, Y ₁₁ =Y _mi +(Y _1j -Y _1i )·1/3, Z ₁₁ =Z _1i +(Z _1j -Z _1i )· 1/3;

Mid-red segment (second intermediate segment):

X ₁₂ =X _1i +(X _1j -X _1i )·2/3, Y ₁₂ =Y _1i +(Y _1j -Y _1i )·2/3, Z ₁₂ =Z _1i +(Z _1j -Z _1i )· 2/3;

Secondary red segment (third intermediate segment):

X ₁₃ =X _1i +(X _1j -X _1i )·3/3, Y ₁₃ =Y _1i +(Y _1j -Y _1i )·3/3, Z ₁₃ =Z _1i +(Z _1j -Z _1i )· 3/3;

The reddest segment (end color segment): X _1j , Y _1j , Z _1j .

The second gradient unit and the third gradient unit are similar to the first gradient unit. For details, please refer to the calculation method of the color mixing ratio of the first gradient unit, and will not repeat it.

Step S140, according to the length of the large yarn to be spun, design each gradient unit and the length of each color segment (including the initial color segment, the ending color segment and the middle color segment). It should be noted that the length of each gradient unit and each color segment can be designed to be any length, as long as it meets the design requirements. If the length of each color segment of each unit is the same, then the initial color segment and the end color segment of two adjacent gradient units need to overlap, so that a better effect can be achieved.

Step S150, according to the following formula, calculate the blending ratio of the initial color segment, the ending color segment and the middle color segment of the m-th gradient unit through the color mixing ratio:

K _mi (X)＝X _mi /(X _mi +Y _mi +Z _mi ), K _mi (Y)＝Y _mi /(X _mi +Y _mi +Z _mi ), K _mi (Z)＝Z _mi /( X _mi +Y _mi +Z _mi );

K _mj (X)＝X _mj /(X _mj +Y _mj +Z _mj ),K _mj (Y)＝Y _mj /(X _mj +Y _mj +Z _mj ),K _mj (Z)＝Z _mj /( X _mj +Y _mj +Z _mj );

K _mn (X)＝X _mn /(X _mn +Y _mn +Z _mn ),K _mn (Y)＝Y _mn /(X _mn +Y _mn +Z _mn ),K _mn (Z)＝Z _mn /( X _mn +Y _mn +Z _mn ).

Then the example in step S130 is elaborated: the mixing ratio of each color segment of the first gradient unit is as follows:

Least red segment (initial segment):

K _1i (X)＝X _1i /(X _1i +Y _1i +Z _1i ), K _1i (Y)＝Y _1i /(X _1i +Y _1i +Z _1i ), K _1i (Z)＝Z _1i /( X _1i +Y _1i +Z _1i );

The second non-red segment (the first intermediate segment):

K ₁₁ (X)＝X ₁₁ /(X ₁₁ +Y ₁₁ +Z ₁₁ ), K ₁₁ (Y)＝Y ₁₁ /(X ₁₁ +Y ₁₁ +Z ₁₁ ), K ₁₁ (Z)＝Z ₁₁ /( X ₁₁ +Y ₁₁ +Z ₁₁ );

Mid-red segment (second intermediate segment):

K ₁₂ (X)=X ₁₂ /(X ₁₂ +Y ₁₂ +Z ₁₂ ), K ₁₂ (Y)=Y ₁₂ /(X ₁₂ +Y ₁₂ +Z ₁₂ ), K ₁₂ (Z)=Z ₁₂ /( X ₁₂ +Y ₁₂ +Z ₁₂ );

Secondary red segment (third intermediate segment):

K ₁₃ (X)=X ₁₃ /(X ₁₃ +Y ₁₃ +Z ₁₃ ), K ₁₃ (Y)=Y ₁₃ /(X ₁₃ +Y ₁₃ +Z ₁₃ ), K ₁₃ (Z)=Z ₁₃ /( X ₁₃ +Y ₁₃ +Z ₁₃ );

The reddest segment (ending segment):

K _1j (X)＝X _1j /(X _1j +Y _1j +Z _1j ), K _1j (Y)＝Y _1j /(X _1j +Y _1j +Z _1j ), K _1j (Z)＝Z _1j /( X _1j +Y _1j +Z _1j ).

The second gradient unit and the third gradient unit are similar to the first gradient unit. For details, please refer to the calculation method of the blending ratio of the first gradient unit, and will not repeat it.

Step S160, determine the roving weights ρ(X), ρ(Y), ρ(Z) of the colored rovings corresponding to the gradient base colors X, Y, Z, and calculate the draft ratios e _mi (X) and e _mi of the initial color segments (Y), e _mi (Z), the draft ratio of the end color segment e _mj (X), e _mj (Y), e _mj (Z), the draft ratio of the middle color segment e _mn (X), e _mn (Y), e _mn (Z).

The draft ratio calculation formula of the initial color segment is as follows:

K _mi (X)＝ρ(X)×e _mi (X)/(ρ(X)×e _mi (X)+ρ(Y)×e _mi (Y)+ρ(Z)×e _mi (Z) );

K _mi (Y)＝ρ(Y)×e _mi (Y)/(ρ(X)×e _mi (X)+ρ(Y)×e _mi (Y)+ρ(Z)×e _mi (Z) );

K _mi (Z)＝ρ(Z)×e _mi (Z)/(ρ(X)×e _mi (X)+ρ(Y)×e _mi (Y)+ρ(Z)×e _mi (Z) ).

The formula for calculating the draft ratio of the ending color segment is as follows:

K _mj (X)＝ρ(X)× _emj (X)/(ρ(X)× _emj (X)+ρ(Y)× _emj (Y)+ρ(Z)× _emj (Z) );

K _mj (Y)＝ρ(Y)× _emj (Y)/(ρ(X)× _emj (X)+ρ(Y)× _emj (Y)+ρ(Z)× _emj (Z) );

K _mj (Z)＝ρ(Z)× _emj (Z)/(ρ(X)× _emj (X)+ρ(Y)× _emj (Y)+ρ(Z)× _emj (Z) ).

The formula for calculating the draft ratio of the middle color segment is as follows:

K _mn (X)＝ρ(X)× _emn (X)/(ρ(X)× _emn (X)+ρ(Y)× _emn (Y)+ρ(Z)× _emn (Z) );

K _mn (Y)＝ρ(Y)×e _mn (Y)/(ρ(X)×e _mn (X)+ρ(Y)×e _mn (Y)+ρ(Z)×e _mn (Z) );

K _mn (Z)＝ρ(Z)× _emn (Z)/(ρ(X)× _emn (X)+ρ(Y)× _emn (Y)+ρ(Z)× _emn (Z) ).

Roving weight ρ(X), ρ(Y), ρ(Z) can be set according to the yarn material and color design, and can be set as ρ(X)=ρ(Y)=ρ(Z), or as Three quantities that are not equal. When the roving weights ρ(X), ρ(Y) and ρ(Z) are known, and the blending ratio of each color segment is known, the draft ratio of each color segment can be calculated.

Next, the example in step S150 is explained: the formula for calculating the draft ratio of each color segment of the first gradient unit is as follows:

Least red segment (initial segment):

K _1i (X)=ρ(X)×e _1i (X)/(ρ(X)×e _1i (X)+ρ(Y)×e _1i (Y)+ρ(Z)×e _1i (Z) );

K _1i (Y)=ρ(Y)×e _1i (Y)/(ρ(X)×e _1i (X)+ρ(Y)×e _1i (Y)+ρ(Z)×e _1i (Z) );

K _1i (Z)=ρ(Z)×e _1i (Z)/(ρ(X)×e _1i (X)+ρ(Y)×e _1i (Y)+ρ(Z)×e _1i (Z) ).

The second non-red segment (the first intermediate segment):

K ₁₁ (X)=ρ(X)×e ₁₁ (X)/(ρ(X)×e ₁₁ (X)+ρ(Y)×e ₁₁ (Y)+ρ(Z)×e ₁₁ (Z) );

K ₁₁ (Y)=ρ(Y)×e ₁₁ (Y)/(ρ(X)×e ₁₁ (X)+ρ(Y)×e ₁₁ (Y)+ρ(Z)×e ₁₁ (Z) );

K ₁₁ (Z)=ρ(Z)×e ₁₁ (Z)/(ρ(X)×e ₁₁ (X)+ρ(Y)×e ₁₁ (Y)+ρ(Z)×e ₁₁ (Z) ).

Mid-red segment (second intermediate segment):

K ₁₂ (X)=ρ(X)×e ₁₂ (X)/(ρ(X)×e ₁₂ (X)+ρ(Y)×e ₁₂ (Y)+ρ(Z)×e ₁₂ (Z) );

K ₁₂ (Y)=ρ(Y)×e ₁₂ (Y)/(ρ(X)×e ₁₂ (X)+ρ(Y)×e ₁₂ (Y)+ρ(Z)×e ₁₂ (Z) );

K ₁₂ (Z)=ρ(Z)×e ₁₂ (Z)/(ρ(X)×e ₁₂ (X)+ρ(Y)×e ₁₂ (Y)+ρ(Z)×e ₁₂ (Z) ).

Secondary red segment (third intermediate segment):

K ₁₃ (X)=ρ(X)×e ₁₃ (X)/(ρ(X)×e ₁₃ (X)+ρ(Y)×e ₁₃ (Y)+ρ(Z)×e ₁₃ (Z) );

K ₁₃ (Y)=ρ(Y)×e ₁₃ (Y)/(ρ(X)×e ₁₃ (X)+ρ(Y)×e ₁₃ (Y)+ρ(Z)×e ₁₃ (Z) );

K ₁₃ (Z)=ρ(Z)×e ₁₃ (Z)/(ρ(X)×e ₁₃ (X)+ρ(Y)×e ₁₃ (Y)+ρ(Z)×e ₁₃ (Z) ).

The reddest segment (ending segment):

K _1j (X)＝ρ(X)×e _1j (X)/(ρ(X)×e _1j (X)+ρ(Y)×e _1j (Y)+ρ(Z)×e _1j (Z) );

K _1j (Y)=ρ(Y)×e _1j (Y)/(ρ(X)×e _1j (X)+ρ(Y)×e _1j (Y)+ρ(Z)×e _1j (Z) );

K _1j (Z)=ρ(Z)×e _1j (Z)/(ρ(X)×e _1i (X)+ρ(Y)×e _1i (Y)+ρ(Z)×e _1i (Z) ).

The second gradient unit and the third gradient unit are similar to the first gradient unit. For details, please refer to the calculation method of the draft ratio of each color segment in the first gradient unit, and will not repeat it.

Step S170, respectively feed the colored rovings corresponding to the gradient primary colors X, Y, and Z from the three rear roller channels of the three-channel digital spinning machine, and input the roving weight, spindle speed, twist coefficient, and linear density on the control panel, According to the order of the initial color segment, the ending color segment and the middle color segment, the gradient illusion yarn is spun by adjusting the draft ratio of each channel. Colored rovings are made of pure cotton, polyester cotton or/and cellulose fibers. The colored rovings corresponding to the three gradient primary colors X, Y, and Z can be made of different raw materials, theoretically speaking, they can be any raw materials, not limited to the above-mentioned ones. In a specific production process, the linear densities of the colored rovings corresponding to the gradient primary colors X, Y, and Z can be set to be constant and equal. In a specific production process, the roving weight is set to 4.5g/10m, the spindle speed is set to 7000r/min, the twist coefficient is 340, and the linear density is constant at 340tex.

Example 2

This embodiment 2 provides another spinning method of the gradient illusion yarn, similar to the embodiment 1, also using a three-channel digital spinning machine, the difference is that two colors are mixed and spun. Specifically, the following steps are included:

Step S210, determine two gradient primary colors X, Y, and design m gradient units.

Step S220, determining the color mixing ratios X _mi , Y _mi of the gradient base colors in the initial color segment of the mth gradient unit, and the color mixing ratios X _mj , Y _mj of the gradient base colors in the ending color segment.

Step S230, except the initial color segment and the ending color segment, determine the number n of intermediate color segments in the mth gradient unit, and calculate the color mixing ratio of the gradient base color in each intermediate color segment according to the following formula:

X _m1 =X _mi +(X _mj -X _mi )·1/n, Y _m1 =Y _mi +(Y _mj -Y _mi )·1/n;

X _m2 =X _mi +(X _mj -X _mi )·2/n, Y _m2 =Y _mi +(Y _mj -Y _mi )·2/n;

X _m3 =X _mi +(X _mj -X _mi ) · 3/n, Y _m3 = Y _mi +(Y _mj -Y _mi ) · 3/n;

...

X _mn =X _mi +(X _mj -X _mi )·n/n, Y _mn =Y _mi +(Y _mj -Y _mi )·n/n.

Step S240, according to the length of the large yarn to be spun, design each gradient unit and the length of each color segment (including the initial color segment, the ending color segment and the middle color segment).

Step S250, according to the following formula, calculate the blending ratio of the initial color segment, the ending color segment and the middle color segment of the m-th gradient unit through the color mixing ratio:

K _mi (X)＝X _mi /(X _mi +Y _mi +Z _mi ),K _mi (Y)＝Y _mi /(X _mi +Y _mi +Z _mi );

K _mj (X)＝X _mj /(X _mj +Y _mj +Z _mj ),K _mj (Y)＝Y _mj /(X _mj +Y _mj +Z _mj );

K _mn (X) = X _mn / (X _mn + Y _mn + Z _mn ), K _mn (Y) = Y _mn / (X _mn + Y _mn + Z _mn ).

Step S260, determine the roving weights ρ(X) and ρ(Y) of the colored rovings corresponding to the gradient primary colors X, Y, and Z, calculate the draft ratio e _mi (X), e _mi (Y) of the initial color segment, and end The draft ratios e _mj (X) and e _mj (Y) of the color segment, and the draft ratios e _mn (X) and e _mn (Y) of the middle color segment.

Step S270, feed the colored rovings corresponding to the gradient primary colors X and Y from any two rear roller channels of the three-channel digital spinning machine, input the spinning parameters on the control panel, and follow the initial color segment, the ending color segment and The sequence of the intermediate color segments is spun into a gradient phantom yarn by adjusting the draft ratio of each channel.

The embodiments of the present invention described above are not intended to limit the protection scope of the present invention.

Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosure herein. The present invention is intended to cover any modification, use or adaptation of the present invention. These modifications, uses or adaptations follow the general principles of the present invention and include common knowledge or conventional technical means in the technical field not disclosed in the present invention . The specification and examples are to be considered exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (9)

1. a kind of Yarn spinning method of gradual change illusion-colour yarn, which is characterized in that use triple channel number spinning machine, including following step It is rapid:

(1) 3 gradual changes primary colours X, Y, Z are determined, m gradual change unit is designed；

(2) the colour mixture ratio X of gradual change primary colours in the initial color section of m-th of gradual change unit is determined_mi、Y_mi、Z_mi, and, in the color section that ends up The colour mixture ratio X of gradual change primary colours_mj、Y_mj、Z_mj,

(3) it removes outside initial color section and ending color section, the Neutral colour segment number n in m-th of gradual change unit is determined, according to following public affairs Formula calculates the colour mixture ratio of gradual change primary colours in each Neutral colour section are as follows:

X_m1=X_mi+(X_mj-X_mi) 1/n, Y_m1=Y_mi+(Y_mj-Y_mi)·1/n,Z_m1=Z_mi+(Z_mj-Z_mi)·1/n；

X_m2=X_mi+(X_mj-X_mi) 2/n, Y_m2=Y_mi+(Y_mj-Y_mi)·2/n,Z_m2=Z_mi+(Z_mj-Z_mi)·2/n；

X_m3=X_mi+(X_mj-X_mi) 3/n, Y_m3=Y_mi+(Y_mj-Y_mi)·3/n,Z_m3=Z_mi+(Z_mj-Z_mi)·3/n；

……

X_mn=X_mi+(X_mj-X_mi) n/n, Y_mn=Y_mi+(Y_mj-Y_mi)·n/n,Z_mn=Z_mi+(Z_mj-Z_mi)·n/n；

(4) according to following formula, initial color section, ending color section and Neutral colour section by colour mixture than calculating m-th of gradual change unit Blending ratio:

K_mi(X)=X_mi/(X_mi+Y_mi+Z_mi),K_mi(Y)=Y_mi/(X_mi+Y_mi+Z_mi),K_mi(Z)=Z_mi/(X_mi+Y_mi+Z_mi)；

K_mj(X)=X_mj/(X_mj+Y_mj+Z_mj),K_mj(Y)=Y_mj/(X_mj+Y_mj+Z_mj),K_mj(Z)=Z_mj/(X_mj+Y_mj+Z_mj)；

K_mn(X)=X_mn/(X_mn+Y_mn+Z_mn),K_mn(Y)=Y_mn/(X_mn+Y_mn+Z_mn),K_mn(Z)=Z_mn/(X_mn+Y_mn+Z_mn)；

(5) the regular roving feeding ρ (X), ρ (Y), ρ (Z) for determining coloured rove corresponding to gradual change primary colours X, Y, Z, calculate initial color section Draw ratio e_mi(X)、e_mi(Y)、e_mi(Z), the draw ratio e for the color section that ends up_mj(X)、e_mj(Y)、e_mj(Z), the drawing-off of Neutral colour section Compare e_mn(X)、e_mn(Y)、e_mn(Z)；

(6) it is fed respectively from 3 rear roller channels of triple channel number spinning machine coloured thick corresponding to gradual change primary colours X, Y, Z Yarn inputs spinning parameters on the control panel, each logical by regulating and controlling according to the sequence of initial color section, ending color section and Neutral colour section The draw ratio in road is spun into gradual change illusion-colour yarn.

2. a kind of Yarn spinning method of gradual change illusion-colour yarn, which is characterized in that use triple channel number spinning machine, including following step It is rapid:

(1) 2 gradual changes primary colours X, Y are determined, m gradual change unit is designed；

(2) the colour mixture ratio X of gradual change primary colours in the initial color section of m-th of gradual change unit is determined_mi、Y_mi, and, gradual change in the color section that ends up The colour mixture ratio X of primary colours_mj、Y_mj,

(3) it removes outside initial color section and ending color section, the Neutral colour segment number n in m-th of gradual change unit is determined, according to following public affairs Formula calculates the colour mixture ratio of gradual change primary colours in each Neutral colour section are as follows:

X_m1=X_mi+(X_mj-X_mi) 1/n, Y_m1=Y_mi+(Y_mj-Y_mi)·1/n；

X_m2=X_mi+(X_mj-X_mi) 2/n, Y_m2=Y_mi+(Y_mj-Y_mi)·2/n；

X_m3=X_mi+(X_mj-X_mi) 3/n, Y_m3=Y_mi+(Y_mj-Y_mi)·3/n；

……

X_mn=X_mi+(X_mj-X_mi) n/n, Y_mn=Y_mi+(Y_mj-Y_mi)·n/n；

(4) according to following formula, initial color section, ending color section and Neutral colour section by colour mixture than calculating m-th of gradual change unit Blending ratio:

K_mi(X)=X_mi/(X_mi+Y_mi+Z_mi),K_mi(Y)=Y_mi/(X_mi+Y_mi+Z_mi)；

K_mj(X)=X_mj/(X_mj+Y_mj+Z_mj),K_mj(Y)=Y_mj/(X_mj+Y_mj+Z_mj)；

K_mn(X)=X_mn/(X_mn+Y_mn+Z_mn),K_mn(Y)=Y_mn/(X_mn+Y_mn+Z_mn)；

(5) regular roving feeding ρ (X), the ρ (Y) for determining coloured rove corresponding to gradual change primary colours X, Y, calculate the drawing-off of initial color section Compare e_mi(X)、e_mi(Y), the draw ratio e for the color section that ends up_mj(X)、e_mj(Y), the draw ratio e of Neutral colour section_mn(X)、e_mn(Y)；

(6) it is fed respectively from wantonly 2 rear roller channels of triple channel number spinning machine coloured thick corresponding to gradual change primary colours X, Y Yarn inputs spinning parameters on the control panel, each logical by regulating and controlling according to the sequence of initial color section, ending color section and Neutral colour section The draw ratio in road is spun into gradual change illusion-colour yarn.

3. the Yarn spinning method of gradual change illusion-colour yarn according to claim 1, which is characterized in that further include: according to spinning Gradual change illusion-colour yarn length, design the length of each gradual change unit, each color section.

4. the Yarn spinning method of gradual change illusion-colour yarn according to claim 1, which is characterized in that m >=1, n >=0.

5. the Yarn spinning method of gradual change illusion-colour yarn according to claim 1, which is characterized in that two neighboring gradual change unit The colour mixture of gradual change primary colours is more identical than correspondence in initial color section and ending color section.

6. the Yarn spinning method of gradual change illusion-colour yarn according to claim 1, which is characterized in that the spinning parameters include thick Yarn is quantitative, spindle revolving speed, twist factor and line density.

7. the Yarn spinning method of gradual change illusion-colour yarn according to claim 1, which is characterized in that the coloured rove is with pure Cotton, polyester-cotton blend or/and cellulose fibre are raw material.

8. the Yarn spinning method of gradual change illusion-colour yarn according to claim 6, which is characterized in that gradual change primary colours X, Y, Z institute is right The line density for the coloured rove answered is equal.

9. a kind of gradual change illusion-colour yarn is spinned by the Yarn spinning method of any one of according to claim 1-8 gradual change illusion-colour yarns It obtains.