Method to manufacture a recyclable textile product and the said product
A method to manufacture a (recyclable) polyester textile product is disclosed which includes providing a first polyester sheet, stitching polyester yarns through the first sheet to form a pile on a first surface of the first sheet, the pile extending from this first surface, and to form loops of the yarns at an opposing second surface of the first sheet, applying a first quantity of a dispersion including an aqueous dispersion medium and polyester particles dispersed in the medium, to the second surface of the first sheet, thereafter removing the aqueous dispersion medium from the said quantity of the aqueous dispersion, heating the polyester particles to above a temperature at which the polyester of these particles softens, and subsequently cooling the polyester of the particles to below a temperature at which this polyester solidifies to therewith interconnect the loops and the first sheet with the solidified polyester.
1 . A polyester textile product comprising:
a first polyester sheet,
polyester yarns stitched through the first sheet forming a pile on a first surface of the first sheet, the pile extending from the first surface, and forming loops of the yarns at an opposing second surface of the first sheet,
a polyester adhesive provided at the second surface of the first sheet to interconnect the loops and the first sheet, wherein the polyester adhesive is composed of a polyester material wherein the polyester material is a material the continuous phase of which is made out of an amorphous polyester which has a glass transition temperature above 20° C., for at least 90% (w/w) and wherein the polyester material has a hydrophilic-lipophilic balance value between 7.6 and 10.5 and a static contact angle with water above 75°.
2 . The polyester textile product according to claim 1 , wherein the polyester material has a hydrophilic-lipophilic balance value between 7.6 and 9.3.
3 . The polyester textile product according to claim 1 , wherein the polyester material is composed of the amorphous polyester.
4 . A method to manufacture the polyester textile product of claim 1 , the method comprising:
providing a first polyester sheet,
stitching polyester yarns through the first sheet to form a pile on a first surface of the first sheet, the pile extending from the first surface, and to form loops of the yarns at an opposing second surface of the first sheet,
applying a first quantity of an aqueous dispersion to the second surface of the first sheet, wherein the aqueous dispersion comprises an aqueous dispersion medium and polyester particles dispersed in the medium and having a number average particle size between 10 and below 1000 nm and which polyester particles are composed of a polyester material wherein the polyester material is a material the continuous phase of which is made out of an amorphous polyester which has a glass transition temperature above 20° C., for at least 90% (w/w), and wherein the polyester material has a hydrophilic-lipophilic balance value between 7.6 and 10.5 and a static contact angle with water above 75°,
thereafter removing the aqueous dispersion medium from the said first quantity of the aqueous dispersion,
heating the polyester particles to above a temperature at which the polyester of these particles softens,
and subsequently cooling the polyester of the particles to below a temperature at which the polyester solidifies to therewith interconnect the loops and the first sheet with the solidified polyester.
5 . The method according to claim 4 , wherein the steps of removing the aqueous dispersion medium from the said first quantity of the aqueous dispersion and heating the polyester particles to above a temperature at which the polyester softens, take place concurrently by heating the first sheet in an oven.
6 . The method according to claim 4 , wherein the first quantity of a dispersion is applied such that the amount of polyester particles is between 50 and 250 g/m 2 .
7 . The method according to claim 4 , wherein a second sheet is adhered to the second surface of the first sheet and wherein the second sheet is applied to the second surface of the first sheet after heating the polyester particles to above a temperature at which the polyesters softens, either before the subsequent cooling of the polyester, or by reheating the polyester particles subsequent to the said cooling.
8 . The method according to claim 4 , wherein a second sheet is adhered to the second surface of the first sheet and wherein after the cooling of the polyester, a second quantity of the dispersion is applied to the second surface of the first sheet, whereafter the aqueous dispersion medium is removed from the said second quantity of the aqueous dispersion, heating the polyester particles of the said second quantity of the aqueous dispersion to above a temperature at which the polyester of the particles softens, applying the second sheet, and subsequently cooling the polyester of the particles to below a temperature at which this polyester solidifies to therewith connect the second sheet.
9 . The method according to claim 4 , wherein a second sheet is adhered to the second surface of the first sheet and wherein after the cooling of the polyester, a layer of hot melt adhesive is applied to the second surface of the first sheet, whereafter the second sheet is applied to therewith connect the second sheet.
10 . The method according to claim 4 , wherein the polyester material is composed of the amorphous polyester.
11 . The method according to claim 4 , wherein the polyester material has a hydrophilic-lipophilic balance value is between 7.6 and 9.3.
12 . The method according to claim 10 , wherein the steps of removing the aqueous dispersion medium from the said first quantity of the aqueous dispersion and heating the polyester particles to above a temperature at which the polyester softens, take place concurrently by heating the first sheet in an oven.
13 . The method according to claim 10 , wherein the first quantity of a dispersion is applied such that the amount of polyester particles is between 50 and 250 g/m 2 .
14 . The method according to claim 10 , wherein a second sheet is adhered to the second surface of the first sheet and wherein the second sheet is applied to the second surface of the first sheet after heating the polyester particles to above a temperature at which the polyesters softens, either before the subsequent cooling of the polyester, or by reheating the polyester particles subsequent to the said cooling.
15 . The method according to claim 10 , wherein a second sheet is adhered to the second surface of the first sheet and wherein after the cooling of the polyester, a second quantity of the dispersion is applied to the second surface of the first sheet, whereafter the aqueous dispersion medium is removed from the said second quantity of the aqueous dispersion, heating the polyester particles of the said second quantity of the aqueous dispersion to above a temperature at which the polyester of the particles softens, applying the second sheet, and subsequently cooling the polyester of the particles to below a temperature at which this polyester solidifies to therewith connect the second sheet.
16 . The method according to claim 10 , wherein a second sheet is adhered to the second surface of the first sheet and wherein after the cooling of the polyester, a layer of hot melt adhesive is applied to the second surface of the first sheet, whereafter the second sheet is applied to therewith connect the second sheet.